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You searched for: Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term irradiation Remove constraint Subject term: irradiation
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1. 1,3,5-Tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione: kinetic studies and phototransformation products

Author:
Dominique Lörchner; Lothar W. Kroh; Robert Köppen
Source:
Environmental science and pollution research 2019 v.26 no.16 pp. 15838-15846
ISSN:
0944-1344
Subject:
electronic equipment; flame retardants; half life; high performance liquid chromatography; hydrogen peroxide; hydroxyl radicals; hydroxylation; irradiation; isopropyl alcohol; kinetics; lighting; mass spectrometry; oxygen; photolysis; sodium azide
Abstract:
... 1,3,5-Tris-(2,3-dibromopropyl)-1,3,5-triazine-2,4,6-trione (TDBP-TAZTO) is an emerging brominated flame retardant which is widely used in several plastic materials (electric and electronic equipment, musical instruments, automotive components). However, until today, no photochemical studies as well as the identification of possible phototransformation products (PTPs) were described in literature. ...
DOI:
10.1007/s11356-019-04815-w

2. 110th Anniversary: Calcium Looping Coupled with Concentrated Solar Power for Carbon Capture and Thermochemical Energy Storage

Author:
Claudio Tregambi; Francesca Di Lauro; Fabio Montagnaro; Piero Salatino; Roberto Solimene
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.47 pp. 21262-21272
ISSN:
1520-5045
Subject:
calcium; carbon; carbon sequestration; energy; fluidized beds; irradiation; limestone; nitrogen; porosimetry; salts; solar energy; solar radiation; sorbents; thermography
Abstract:
... Concentrating solar power (CSP) technologies with energy storage can greatly enhance the dispatchability and the exploitation of solar energy in different applications. In this context, the present study addresses coupling CSP with calcium looping (CaL) along the 2-fold perspective of accomplishing: (a) carbon capture and sequestration or utilization (CCSU); (b) thermochemical energy storage (TCES ...
DOI:
10.1021/acs.iecr.9b03083

3. 1D/2D MnWO4 nanorods anchored on g-C3N4 nanosheets for enhanced photocatalytic degradation ofloxacin under visible light irradiation

Author:
Lakshmi Prabavathi S.; Saravanakumar K.; Gcina Mamba; Muthuraj V.
Source:
Colloids and surfaces 2019 v.581 pp. 123845
ISSN:
0927-7757
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; anions; carbon nitride; carbonates; catalysts; chemical composition; chlorides; energy-dispersive X-ray analysis; hot water treatment; irradiation; light; nanocomposites; nanorods; nanosheets; ofloxacin; optical properties; photocatalysis; pollutants; pollution control; scanning electron microscopy; sulfates; transmission electron microscopy; ultrasonic treatment
Abstract:
... Herein, MnWO₄ nanorods coupled with g-C₃N₄ nanosheets were fabricated by a simple hydrothermal method, followed by an ultrasonication method. Morphological features, chemical composition, optical properties and crystallographic information of the prepared materials were obtained using SEM-EDX, TEM, XRD, XPS, FT-IR, UV–vis DRS, and PL techniques. The synthesized MnWO₄@g-C₃N₄ nanocomposite displayed ...
DOI:
10.1016/j.colsurfa.2019.123845

4. 2D BiVO4/g-C3N4 Z-scheme photocatalyst for enhanced overall water splitting

Author:
Hanyi Xie; Yanfang Zhao; Huijuan Li; Yizhen Xu; Xiangfeng Chen
Source:
Journal of materials science 2019 v.54 no.15 pp. 10836-10845
ISSN:
0022-2461
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; electron paramagnetic resonance spectroscopy; graphene; hydrogen production; irradiation; optical properties; oxygen production; pH; photocatalysis; photocatalysts; photoluminescence; scanning electron microscopes; semiconductors; transmission electron microscopes; ultraviolet-visible spectroscopy
Abstract:
... A 2D Z-scheme BiVO₄/g-C₃N₄ photocatalyst was successfully synthesized by a two-step hydrothermal/calcination method for overall water splitting. Morphology design to restrain the growth of BiVO₄ nanoplates with thickness around 20 nm was achieved by adjusting the pH value and introducing graphene sheets. Then, the BiVO₄/g-C₃N₄ (BVO-CN) hybrid photocatalysts were fabricated with different mass rati ...
DOI:
10.1007/s10853-019-03664-9

5. 2D visible-light-driven TiO2@Ti3C2/g-C3N4 ternary heterostructure for high photocatalytic activity

Author:
Xiaohui Ding; Yingchun Li; Chunhu Li; Wentai Wang; Liang Wang; Lijuan Feng; Dezhi Han
Source:
Journal of materials science 2019 v.54 no.13 pp. 9385-9396
ISSN:
0022-2461
Subject:
aniline; byproducts; carbon nitride; electrons; irradiation; microstructure; photocatalysis; photocatalysts; pollutants; titanium dioxide
Abstract:
... A novel 2D visible-light-driven TiO₂@Ti₃C₂/g-C₃N₄ ternary heterojunction photocatalyst with modified interfacial microstructure and electronic properties was synthesized by ultrasonic-assisted calcination method. The remarkably active g-C₃N₄ could provide high productivity of photogenerated electrons and holes. Meanwhile, the O/OH-terminated Ti₃C₂ and by-product TiO₂ could act as excellent support ...
DOI:
10.1007/s10853-018-03289-4

6. 3D Bombax-structured carbon nanotube sponge coupling with Ag3PO4 for tetracycline degradation under ultrasound and visible light irradiation

Author:
Jiafeng Jin; Min Liu; Lanhui Feng; Haoyu Wang; Yanling Wang; Tuan A.H. Nguyen; Yameng Wang; Jinren Lu; Yiming Li; Mutai Bao
Source:
Science of the total environment 2019 v.695 pp. 133694
ISSN:
0048-9697
Subject:
adsorption; carbon nanotubes; electrochemistry; electron paramagnetic resonance spectroscopy; free radicals; gas chromatography-mass spectrometry; ion exchange; irradiation; moieties; photocatalysis; photoluminescence; photolysis; spectrometers; surface area; tetracycline; ultrasonic treatment; ultrasonics; vapors
Abstract:
... A novel photocatalytic carbon nanotube sponge with three-dimensional Bombax-structure was fabricated by a facile chemical vapor deposition followed by in situ ion-exchange approach. The as-prepared sponge achieved both high-efficiency adsorption and photocatalysis towards antibiotics, which can remove up to 90% of tetracycline within an hour. The morphology and mechanism of the photocatalytic CNT ...
DOI:
10.1016/j.scitotenv.2019.133694

7. 3D printed chitosan scaffolds: A new TiO2 support for the photocatalytic degradation of amoxicillin in water

Author:
Laura Bergamonti; Carlo Bergonzi; Claudia Graiff; Pier Paolo Lottici; Ruggero Bettini; Lisa Elviri
Source:
Water research 2019 v.163 pp. 114841
ISSN:
0043-1354
Subject:
Raman spectroscopy; X-ray diffraction; amoxicillin; chitosan; drugs; irradiation; mechanical properties; photocatalysis; photolysis; pollutants; remediation; three-dimensional printing; titanium dioxide; ultraviolet radiation; ultraviolet-visible spectroscopy; wastewater; wastewater treatment
Abstract:
... TiO₂-supported chitosan scaffolds (TiO₂/CS) are here proposed as promising material for wastewater treatment, in particular for the removal of pharmaceutical compounds. TiO₂/CS are tested for the amoxicillin photodegradation under UV/Vis irradiation. Amoxicillin (AMX) is an antibiotic of the beta-lactam family. Due to the release of antibiotics in wastewater and their persistence in the environmen ...
DOI:
10.1016/j.watres.2019.07.008

8. 3D/2D direct Z-scheme heterojunctions of hierarchical TiO2 microflowers/g-C3N4 nanosheets with enhanced charge carrier separation for photocatalytic H2 evolution

Author:
Juan Wang; Guohong Wang; Xiao Wang; Yao Wu; Yaorong Su; Hua Tang
Source:
Carbon 2019 v.149 pp. 618-626
ISSN:
0008-6223
Subject:
carbon; carbon nitride; electric current; hydrogen; hydrogen production; irradiation; nanosheets; photocatalysis; photocatalysts; photoluminescence; solar radiation; synergism; titanium dioxide
Abstract:
... Constructing a 3D/2D direct Z-scheme heterojunction is a practical way to promote charge separation for attaining efficient solar hydrogen production. In the present work, hybrid 3D TiO2 microflowers/2D g-C3N4 nanosheets with a direct Z-scheme heterostructure is designed and fabricated through a hydrothermal and calcination process. The photocatalytic properties of the hybrid photocatalysts are ev ...
DOI:
10.1016/j.carbon.2019.04.088

9. 8-Pyrenylvinyl Adenine Controls Reversible Duplex Formation between Serinol Nucleic Acid and RNA by [2 + 2] Photocycloaddition

Author:
Keiji Murayama; Yuuhei Yamano; Hiroyuki Asanuma
Source:
Journal of the American Chemical Society 2019 v.141 no.24 pp. 9485-9489
ISSN:
1520-5126
Subject:
RNA; adenine; dissociation; equipment; irradiation; temperature; ultraviolet radiation
Abstract:
... Photocontrol of duplex formation between the totally artificial serinol nucleic acid (SNA) and target RNA was made possible using a photoresponsive nucleobase 8-pyrenylvinyl adenine (ᴾⱽA). ᴾⱽA residues in SNA can be induced to undergo intrastrand [2 + 2] photocycloaddition by 455 nm light. Effective cycloreversion of the ᴾⱽA photodimer results from irradiation with 340 nm light. These reactions oc ...
DOI:
10.1021/jacs.9b03267

10. A 2-year multisite study of viticultural and environmental factors affecting rotundone concentration in Duras red wine

Author:
Olivier Geffroy; Juliette Descôtes; Cécile Levasseur-Garcia; Christian Debord; Jean-Philippe Denux; Thierry Dufourcq
Source:
OENO One 2019 v.53 no.3 pp. -
ISSN:
2494-1271
Subject:
Botrytis cinerea; Vitis vinifera; black pepper; fruit quality; gluconic acid; grapes; irradiation; odor compounds; rain; red wines; secondary metabolites; solar radiation; vineyards; viticulture
Abstract:
... Aim: A study was carried out in 2013 and 2014 to determine the key environmental and viticultural variables affecting the concentration of rotundone, the black pepper aroma compound, in Vitis vinifera L. cv. Duras red wines at 10 different vineyard blocks. Methods and Results: For each block, data for fruit quality attributes, as well as climatic and agronomical variables, were collected. Rotundon ...
DOI:
10.20870/oeno-one.2019.53.3.2341

11. A Bifunctional Alginate-Based Composite Hydrogel with Synergistic Pollutant Adsorption and Photocatalytic Degradation Performance

Author:
Dan Qian; Lan Bai; Yi-Sha Wang; Fei Song; Xiu-Li Wang; Yu-Zhong Wang
Source:
Industrial & engineering chemistry process design and development 2019 v.58 no.29 pp. 13133-13144
ISSN:
1520-5045
Subject:
adsorption; alginates; binding sites; catalysts; electrostatic interactions; equations; gentian violet; hydrogels; hydrogen bonding; irradiation; malachite green; methylene blue; nanoparticles; photocatalysis; photolysis; pollutants; pollution; polyacrylamide; process design; sorption isotherms; ultraviolet radiation; wastewater
Abstract:
... The growing dye pollution has become an urgent threat to environmental and biological safety. To meet the requirements of both dye adsorption and photocatalytic degradation in complicated wastewater environments, here, a novel La(OH)₃-immobilized alginate/polyacrylamide composite hydrogel (La(OH)₃@SA/PAM) is fabricated by in situ growth of La(OH)₃ on the inner walls of alginate/polyacrylamide netw ...
DOI:
10.1021/acs.iecr.9b01709

12. A Bi₂WO₆/Ag₂S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants

Author:
Soleiman Mosleh; Kheibar Dashtian; Mehrorang Ghaedi; Maryam Amiri
Source:
RSC advances 2019 v.9 no.52 pp. 30100-30111
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; dyes; irradiation; light; pH; photocatalysis; photocatalysts; pollutants; response surface methodology; scanning electron microscopy; silver sulfide; zinc sulfide
Abstract:
... A novel visible-light-driven Z-scheme heterojunction, Bi₂WO₆/Ag₂S/ZnS, was synthesized and its photocatalytic activity was evaluated for the treatment of a binary mixture of dyes, and its physicochemical properties were characterized using FT-IR, XRD, DRS and FE-SEM techniques. The Bi₂WO₆/Ag₂S/ZnS Z-scheme heterojunctions not only facilitate the charge separation and transfer, but also maintain th ...
DOI:
10.1039/c9ra05372g

13. A Codoped Polymeric Photocatalyst with Prolonged Carrier Lifetime and Extended Spectral Response up to 600 nm for Enhanced Hydrogen Evolution

Author:
Chao Wang; Weijia Wang; Huiqing Fan; Nan Zhao; Jiangwei Ma; Mingchang Zhang; Arun Kumar Yadav
Source:
ACS applied materials & interfaces 2019 v.12 no.5 pp. 5234-5243
ISSN:
1944-8252
Subject:
absorption; carbon nitride; energy; hydrogen production; irradiation; light; photocatalysis; photocatalysts; polymers; semiconductors; sodium
Abstract:
... The intrinsic properties of photocatalysts, such as electron state and energy band structure, contribute significantly to their catalytic performance. However, it is difficult to alter these properties of semiconductors by conventional modifications. To adjust the intrinsic properties while preserving long-term conjugation of the polymeric photocatalysts, a post-thermal treatment is proposed to co ...
DOI:
10.1021/acsami.9b16646

14. A Comparative Study of Plasma-Treated Oxygen-Doped Single-Walled and Multiwalled Carbon Nanotubes as Electrocatalyst for Efficient Oxygen Reduction Reaction

Author:
Roopathy Mohan; Arindam Modak; Alex Schechter
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.13 pp. 11396-11406
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray photoelectron spectroscopy; batteries; carbon nanotubes; catalysts; catalytic activity; comparative study; cost effectiveness; electrochemistry; energy conversion; fuel cells; irradiation; moieties; oxygen; renewable energy sources; scanning electron microscopy; transmission electron microscopy
Abstract:
... The oxygen reduction reaction (ORR) is pivotal in renewable energy technologies, such as in fuel cells and metal–air batteries. Precious-metal-free electrochemical ORR is a critical component in designing cost-effective electrochemical energy conversion devices. We show here the surface modification of carbon nanotubes (CNT) through one-step oxygen plasma irradiation, which induces doping and char ...
DOI:
10.1021/acssuschemeng.9b01125

15. A Comparative Study on the Formation of Environmentally Persistent Free Radicals (EPFRs) on Hematite and Goethite: Contribution of Various Catechol Degradation Byproducts

Author:
Peng Yi; Quan Chen; Hao Li; Di Lang; Qing Zhao; Bo Pan; Baoshan Xing
Source:
Environmental science & technology 2019 v.53 no.23 pp. 13713-13719
ISSN:
1520-5851
Subject:
catechol; comparative study; electron paramagnetic resonance spectroscopy; environmental science; goethite; hematite; irradiation; ultraviolet radiation
Abstract:
... The formation and occurrence of environmentally persistent free radicals (EPFRs) have recently attracted increasing research attention. The interactions between organics and transition metals and the crystalline forms of the transition metals are essential for EPFR formation. This study is thus designed to investigate catechol degradation and compare the characteristics of EPFRs on α-Fe₂O₃ (hemati ...
DOI:
10.1021/acs.est.9b04444

16. A Covalent Organic Framework Bearing Single Ni Sites as a Synergistic Photocatalyst for Selective Photoreduction of CO₂ to CO

Author:
Wanfu Zhong; Rongjian Sa; Liuyi Li; Yajun He; Lingyun Li; Jinhong Bi; Zanyong Zhuang; Yan Yu; Zhigang Zou
Source:
Journal of the American Chemical Society 2019 v.141 no.18 pp. 7615-7621
ISSN:
1520-5126
Subject:
active sites; carbon; carbon dioxide; carbon monoxide; hydrogen; hydrogen production; irradiation; nickel; photocatalysis; photocatalysts; photosensitizing agents; synergism
Abstract:
... Photocatalytic reduction of CO₂ into energy-rich carbon compounds has attracted increasing attention. However, it is still a challenge to selectively and effectively convert CO₂ to a desirable reaction product. Herein, we report a design of a synergistic photocatalyst for selective reduction of CO₂ to CO by using a covalent organic framework bearing single Ni sites (Ni-TpBpy), in which electrons t ...
DOI:
10.1021/jacs.9b02997

17. A Multistimulus Responsive Porous Coordination Polymer: Temperature-Mediated Control of Solid-State [2+2] Cycloaddition

Author:
Isabella E. Claassens; Leonard J. Barbour; Delia A. Haynes
Source:
Journal of the American Chemical Society 2019 v.141 no.29 pp. 11425-11429
ISSN:
1520-5126
Subject:
coordination polymers; cycloaddition reactions; irradiation; ligands; phase transition; photochemistry; temperature
Abstract:
... Either of two different isomeric products can be selectively obtained by photochemical [2+2] cycloaddition of 1,4-bis[2-(4-pyridyl)ethenyl]-benzene within a porous coordination polymer (PCP). The cycloaddition product obtained depends on the temperature at which irradiation occurs. A rare temperature-induced phase transition alters the conformation of the photoactive ligand in the PCP, and thereby ...
DOI:
10.1021/jacs.9b05961

18. A NIR light-triggered drug delivery system using core–shell gold nanostars–mesoporous silica nanoparticles based on multiphoton absorption photo-dissociation of 2-nitrobenzyl PEG

Author:
Andy Hernández-Montoto; Mónica Gorbe; Antoni Llopis-Lorente; José Manuel Terrés; Roberto Montes; Roberto Cao-Milán; Borja Díaz de Greñu; María Alfonso; Mar Orzaez; María Dolores Marcos; Ramón Martínez-Máñez; Félix Sancenón
Source:
Chemical communications 2019 v.55 no.61 pp. 9039-9042
ISSN:
1364-548X
Subject:
absorption; doxorubicin; drug delivery systems; gold; irradiation; light intensity; moieties; nanogold; nanoparticles; near infrared radiation; photolysis; polyethylene glycol; porous media; silica
Abstract:
... Gold nanostars coated with a mesoporous silica shell and functionalized with poly(ethylene glycol) containing photolabile 2-nitrobenzyl moieties are able to release doxorubicin after NIR light irradiation at low power irradiance via a multiphoton absorption photo-dissociation process. ...
DOI:
10.1039/c9cc04260a

19. A Recyclable Nanocarbon White Emitter via the Synergy between Carbon Dots and Organic Sheet

Author:
Yamei Ding; Shuai Cheng; Qing Chang; Shang Ju; Chaoyi Ban; Zhe Zhou; Huiwu Mao; Juqing Liu; Fei Xiu; Wei Huang
Source:
ACS sustainable chemistry & engineering 2019 v.7 no.17 pp. 14677-14684
ISSN:
2168-0485
Subject:
byproducts; carbon quantum dots; electronics; fluorescence; heat; irradiation; photoluminescence; sustainable development; wavelengths
Abstract:
... The rising and huge demand for light conversion materials in versatile applications has led to extensive research on eco-friendly phosphors from an economic and environmental perspective. However, conventional phosphors are generally processed by embedding light emitters into auxiliary matrixes to achieve solid-state film fluorescence, limiting their recyclable utilization due to purification diff ...
DOI:
10.1021/acssuschemeng.9b02600

20. A Ruthenium Nitrosyl-Functionalized Magnetic Nanoplatform with Near-Infrared Light-Controlled Nitric Oxide Delivery and Photothermal Effect for Enhanced Antitumor and Antibacterial Therapy

Author:
Ya-Ting Yu; Shu-Wen Shi; Yi Wang; Qian-Ling Zhang; Shu-Hong Gao; Shi-Ping Yang; Jin-Gang Liu
Source:
ACS applied materials & interfaces 2019 v.12 no.1 pp. 312-321
ISSN:
1944-8252
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; antibiotics; bacterial infections; cancer therapy; cell lines; chemical bonding; chitosan; folic acid; hydrogels; iron oxides; irradiation; magnetic resonance imaging; magnetism; mice; near infrared radiation; near-infrared spectroscopy; neoplasm cells; neoplasms; nitric oxide; ruthenium; thermosensitivity; tissues
Abstract:
... Developing a spatiotemporal-controlled nitric oxide (NO) delivery nanoplatform is highly desirable for its biological applications as a tumor inhibitor and antibacterial agent. In this study, a novel multifunctional magnetic nanoplatform {Fe₃O₄@PDA@Ru-NO@FA} (1) was developed for the near-infrared (NIR) light-controlled release of NO in which a ruthenium nitrosyl (Ru-NO) donor and a folic acid (FA ...
DOI:
10.1021/acsami.9b18865

21. A Scalable General Synthetic Approach toward Ultrathin Imine-Linked Two-Dimensional Covalent Organic Framework Nanosheets for Photocatalytic CO₂ Reduction

Author:
Wenbo Liu; Xiaokang Li; Chiming Wang; Houhe Pan; Wenping Liu; Kang Wang; Qingdao Zeng; Rongming Wang; Jianzhuang Jiang
Source:
Journal of the American Chemical Society 2019 v.141 no.43 pp. 17431-17440
ISSN:
1520-5126
Subject:
carbon dioxide; chemical reduction; imines; irradiation; light; nanosheets; photocatalysis; photocatalysts
Abstract:
... Fabricating ultrathin two-dimensional (2D) covalent organic framework (COF) nanosheets (NSs) in large scale and high yield still remains a great challenge. This limits the exploration of the unique functionalities and wide range of application potentials of such materials. Herein, we develop a scalable general bottom-up approach to facilely synthesize ultrathin (<2.1 nm) imine-based 2D COF NSs (in ...
DOI:
10.1021/jacs.9b09502

22. A Unified Electro- and Photocatalytic CO₂ to CO Reduction Mechanism with Aminopyridine Cobalt Complexes

Author:
Sergio Fernández; Federico Franco; Carla Casadevall; Vlad Martin-Diaconescu; Josep M. Luis; Julio Lloret-Fillol
Source:
Journal of the American Chemical Society 2019 v.142 no.1 pp. 120-133
ISSN:
1520-5126
Subject:
carbon dioxide; carbon monoxide; catalysts; cobalt; electrochemistry; electron transfer; irradiation; light; photocatalysis; redox potential; spectroscopy
Abstract:
... A mechanistic understanding of electro- and photocatalytic CO₂ reduction is crucial to develop strategies to overcome catalytic bottlenecks. In this regard, for a new CO₂-to-CO reduction cobalt aminopyridine catalyst, a detailed experimental and theoretical mechanistic study is herein presented toward the identification of bottlenecks and potential strategies to alleviate them. The combination of ...
DOI:
10.1021/jacs.9b06633

23. A bimetallic Au–Ag nanoalloy mounted LDH/RGO nanocomposite: a promising catalyst effective towards a coupled system for the photoredox reactions converting benzyl alcohol to benzaldehyde and nitrobenzene to aniline under visible light

Author:
Mitarani Sahoo; Sriram Mansingh; K. M. Parida
Source:
Journal of materials chemistry A 2019 v.7 no.13 pp. 7614-7627
ISSN:
2050-7496
Subject:
alloy nanoparticles; alloys; aniline; benzaldehyde; benzyl alcohol; crystallization; electrons; gold; graphene oxide; irradiation; lighting; liquids; nanocomposites; nitrobenzenes; photocatalysis; photocatalysts; photoluminescence; protons; redox reactions; reflectance spectroscopy; silver; surface plasmon resonance; ultraviolet radiation
Abstract:
... Achieving organic transformation reactions using green synthesis methods under mild conditions is always an aspiration of scientists. In the present findings, a Zn–Cr layered double hydroxide (LDH)/graphene oxide (GO) nanocomposite modified with Au–Ag noble metal nanoparticles (NPs) was synthesized via the in situ crystallization of a LDH over a GO surface followed by the simultaneous photo-deposi ...
DOI:
10.1039/c8ta10521a

24. A bio-inspired synthesis of hybrid flavonoids from 2-hydroxychalcone driven by visible light

Author:
Yu-Qi Gao; Yi Hou; Liming Zhu; Guzhou Chen; Dongyang Xu; Sheng-Yong Zhang; Yupeng He; Weiqing Xie
Source:
RSC advances 2019 v.9 no.50 pp. 29005-29009
ISSN:
2046-2069
Subject:
Bronsted acids; Lewis bases; catalytic activity; cations; chemical bonding; enantioselectivity; flavonoids; irradiation; isomerization; light; phosphoric acid
Abstract:
... A bio-inspired synthesis of hybrid flavonoids from 2-hydroxylchalcone is described. Under the irradiation of 24 W CFL, 2-hydroxychalcone reacts with various nucleophiles to deliver structurally diverse hybrid flavonoids in good to excellent yields in the presence of a catalytic Brønsted acid. Moreover, moderate enantioselectivities could be obtained using a catalytic chiral phosphoric acid via cou ...
DOI:
10.1039/c9ra07198a

25. A bioactivatable self-quenched nanogel for targeted photodynamic therapy

Author:
Huacheng He; Anna-Liisa Nieminen; Peisheng Xu
Source:
Biomaterials science 2019 v.7 no.12 pp. 5143-5149
ISSN:
2047-4849
Subject:
cytoplasm; head and neck neoplasms; irradiation; nanoparticles; photochemotherapy; photosensitizing agents; solar radiation; toxicity
Abstract:
... Photodynamic therapy has attracted significant attention due to its localized treatment advantage. However, the non-specific distribution of photosensitizers and the subsequent potential toxicity caused by sunshine exposure hinder its wide adoption in cancer treatment. To minimize these unwanted effects and improve its efficacy, we developed a bioactivatable self-quenched nanogel, which remains in ...
DOI:
10.1039/c9bm01237k
PubMed:
31577285
PubMed Central:
PMC6864251

26. A biotin receptor-targeted silicon(IV) phthalocyanine for in vivo tumor imaging and photodynamic therapy

Author:
Ke Li; Wenyi Dong; Qingzhu Liu; Gaochao Lv; Minhao Xie; Xinchen Sun; Ling Qiu; Jianguo Lin
Source:
Journal of photochemistry and photobiology 2019 v.190 pp. 1-7
ISSN:
1011-1344
Subject:
bioactive properties; biotin; fluorescence; human cell lines; hydrophilicity; image analysis; in vitro studies; irradiation; mice; models; moieties; neoplasms; photochemotherapy; photosensitizing agents; polyethylene glycol; silicon; tissue distribution; water solubility
Abstract:
... Phthalocyanines (Pcs) are a kind of potential photosensitizers for fluorescence imaging and photodynamic therapy (PDT). However, the clinical application of Pcs is suffered from their poor solubility, high aggregation tendency and low tumor-specificity. To address these problems, two biotin moieties were linked to the axial positions of silicon(IV) phthalocyanine (SiPc) through hydrophilic polyeth ...
DOI:
10.1016/j.jphotobiol.2018.09.001

27. A chloroplast-inspired nanoplatform for targeting cancer and synergistic photodynamic/photothermal therapy

Author:
Zhengxi Guo; Xiaohong Zhou; Cheng Hou; Zhaoyang Ding; Changchun Wen; Lai-Jun Zhang; Bang-Ping Jiang; Xing-Can Shen
Source:
Biomaterials science 2019 v.7 no.9 pp. 3886-3897
ISSN:
2047-4849
Subject:
cell membranes; chemical bonding; chlorophyll; chloroplasts; copper; density functional theory; energy; hydrophilicity; irradiation; nanoparticles; neoplasm cells; neoplasms; photons; photosensitivity; phototherapy; photothermotherapy; singlet oxygen
Abstract:
... Specific targeting capabilities and effective phototherapeutic functions are the key demands for precise cancer phototherapeutic agents. Herein, a bioinspired nanoplatform composed of Cu(ii)-chlorophyll–hyaluronic acid nanoparticles (Cu(ii)Chl–HA NPs) was developed for targeting cancer and synergistic photodynamic/photothermal therapy. Inspired by the photonic biosystem of the chloroplast, Cu(ii) ...
DOI:
10.1039/c9bm00762h

28. A combined homogenization-high intensity ultrasonication process for individualizaion of cellulose micro-nano fibers from rice straw

Author:
Mandana Dilamian; Babak Noroozi
Source:
Cellulose 2019 v.26 no.10 pp. 5831-5849
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; cellulose; cellulose fibrils; cellulose nanofibers; crystal structure; filtration; hemicellulose; homogenization; irradiation; lignin; nanocomposites; rice straw; scanning electron microscopy; thermal stability; thermogravimetry; tissue engineering; transmission electron microscopy; ultrasonic treatment
Abstract:
... In this study high quality cellulose fibrils, derived from rice straw by the chemical pretreatment, were fibrillated into cellulose micro/nanofibers through a subsequent homogenization and high-intensity ultrasonication processes. Properly comparing of the fibrillation yield and the morphological structure of the ensuing nanofibers, by means of scanning electron microscopy and transmission electro ...
DOI:
10.1007/s10570-019-02469-y

29. A comparative investigation on structure evolution of ZrN and CrN coatings against ion irradiation

Author:
Zhengtao Wu; Yiming Wu; Qimin Wang
Source:
Heliyon 2019 v.5 no.3 pp. e01370
ISSN:
2405-8440
Subject:
ambient temperature; crystallization; evolution; irradiation; microstructure
Abstract:
... Binary ZrN and CrN nanostructured coatings deposited by magnetron sputtering were irradiated with 600 keV Kr³⁺ at room temperature. The ion irradiation fluences varied from 0 to 1×10¹⁷ Kr³⁺/cm⁻². The results indicate the microstructure of the CrN illustrates higher stability during the Kr³⁺ ion irradiation compared to that of the ZrN. The ion irradiation produces surface etching of the CrN coating ...
DOI:
10.1016/j.heliyon.2019.e01370
PubMed:
30949608
PubMed Central:
PMC6430040

30. A comparative study on photocatalytic hydrogen evolution activity of synthesis methods of CDs/ZnIn2S4 photocatalysts

Author:
Kai Lei; Mingpu Kou; Zhaoyu Ma; Yu Deng; Liqun Ye; Yan Kong
Source:
Colloids and surfaces 2019 v.574 pp. 105-114
ISSN:
0927-7757
Subject:
X-ray photoelectron spectroscopy; carbon; comparative study; electrons; hot water treatment; hydrogen production; irradiation; light; nanocomposites; photocatalysis; photocatalysts; scanning electron microscopy; transmission electron microscopy
Abstract:
... The introduction of carbon materials in photocatalytic systems can significantly enhance the photocatalytic hydrogen evolution activity. Here, we proposed and fabricated carbon nanodots/Znln2S4 (CDs/ZIS) samples via three methods. The morphology, chemical elements and valence, and photoelectric properties of CDs/ZIS samples were systematically characterized by SEM, TEM, XPS, UV and PL. The photoca ...
DOI:
10.1016/j.colsurfa.2019.04.073

31. A comprehensive albedo model for solar energy applications: Geometric spectral albedo

Author:
Hesan Ziar; Furkan Fatih Sönmez; Olindo Isabella; Miro Zeman
Source:
Applied energy 2019 v.255 pp. 113867
ISSN:
0306-2619
Subject:
computer simulation; energy; geometry; irradiation; mathematical models; solar energy; weather
Abstract:
... Albedo is the measure of irradiation energy, which comes from reflecting surroundings. Location, time, geometry, and weather conditions influence the value of albedo. By altering any of the aforementioned parameters, even a little, the albedo value changes. This makes albedo challenging to model. Here we present a mathematical model to cluster all the influential parameters, which affect albedo. W ...
DOI:
10.1016/j.apenergy.2019.113867

32. A deep insight into the structure and performance evolution of aramid nanofiber films induced by UV irradiation

Author:
Jingjing Luo; Meiyun Zhang; Jingyi Nie; Guodong Liu; Jiaojun Tan; Bin Yang; Shunxi Song; Joe R. Zhao
Source:
Polymer degradation and stability 2019 v.167 pp. 170-178
ISSN:
0141-3910
Subject:
amides; anhydrides; cleavage (chemistry); contact angle; crosslinking; crystal structure; irradiation; mechanical properties; nanofibers; nanoparticles; oxidation; surface roughness; temperature; ultraviolet radiation; weight loss
Abstract:
... Aramid nanofibers (ANFs) have been extensively explored in various fields since their emergence as high-performance nanoscale building blocks. ANF films exhibit strong sensitivity to ultraviolet (UV) irradiation which could deteriorate their performances. However, the sensitivity to UV irradiation has not been sufficiently understood yet. In this paper, for the first time, the surface structure an ...
DOI:
10.1016/j.polymdegradstab.2019.07.001

33. A facile heterogeneous system for persulfate activation by CuFe₂O₄ under LED light irradiation

Author:
Xin Zhong; Xiao-Yu Ye; Di Wu; Kai-Xin Zhang; Wei Huang
Source:
RSC advances 2019 v.9 no.55 pp. 32328-32337
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; copper; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; free radicals; gas chromatography-mass spectrometry; iron; irradiation; leaching; nitrogen; pH; photocatalysis; reaction kinetics; rhodamines; scanning electron microscopy; sulfates; superoxide anion; total organic carbon; transmission electron microscopy; wastewater treatment
Abstract:
... In this study, the removal performance for rhodamine B (RB) by persulfate (PS) activated by the CuFe₂O₄ catalyst in a heterogeneous catalytic system under LED light irradiation was investigated. The effect of vital experimental factors, including initial solution pH, CuFe₂O₄ dosage, PS concentration, co-existing anion and initial RB concentration on the removal of RB was systematically studied. Th ...
DOI:
10.1039/c9ra05574f

34. A facile single-pot synthesis of WO3/AgCl composite with enhanced photocatalytic and photoelectrochemical performance under visible-light irradiation

Author:
Raja Arumugam Senthil; Sedahmed Osman; Junqing Pan; Meng Sun; Abrar Khan; Viengkham Yang; Yanzhi Sun
Source:
Colloids and surfaces 2019 v.567 pp. 171-183
ISSN:
0927-7757
Subject:
colloids; hot water treatment; hydrochloric acid; irradiation; lighting; photocatalysis; photocatalysts; photolysis; photostability; remediation; rhodamines; silver chloride; tungsten oxide; wastewater treatment
Abstract:
... In this work, a visible-light-driven WO3/AgCl composite photocatalyst was synthesized by a facile single-pot hydrothermal method using α-Ag2WO4 and HCl as precursors. A series of WO3/AgCl composite photocatalysts were synthesized with the addition of different amount (0.5, 1.0, 1.5 and 2.0 mL) of 2 M HCl solution to α-Ag2WO4. Afterwards, the photocatalytic abilities of the WO3/AgCl composite photo ...
DOI:
10.1016/j.colsurfa.2019.01.056

35. A facile synthesis of Cs loaded TiO2 nanotube photoelectrode for the removal of 4-chloroguaiacol

Author:
Himadri Rajput; Rahil Changotra; Vikas Kumar Sangal; Sunil Kumar Mahla; Amit Dhir
Source:
Chemosphere 2019 v.218 pp. 687-695
ISSN:
0045-6535
Subject:
byproducts; cesium; cytotoxicity; electrochemistry; electrodes; electrolytes; free radicals; gas chromatography-mass spectrometry; hydroxyl radicals; irradiation; mineralization; nanotubes; oxidation; pH; photocatalysis; pollutants; sodium sulfate; solar radiation; titanium dioxide
Abstract:
... In this study, novel Cesium (Cs) doped TiO₂ nanotubes photoelectrode (Cs/TiO₂NTs) were synthesized by simple electrochemical anodization method and characterized by several physicochemical techniques. In particular, the photocatalytic (PC), electrocatalytic (EC) and photoelectrocatalytic (PEC) activity of newly synthesized Cs/TiO₂NTs electrodes was investigated using 4-Chloroguaiacol (4-CG). The e ...
DOI:
10.1016/j.chemosphere.2018.11.157

36. A flexible CdS nanorods-carbon nanotubes/stainless steel mesh photoanode for boosted photoelectrocatalytic hydrogen evolution

Author:
Han Li; Shuning Xiao; Jiachen Zhou; Jingjing Zhao; Fanfan Liu; Guisheng Li; Dieqing Zhang
Source:
Chemical communications 2019 v.55 no.19 pp. 2741-2744
ISSN:
1364-548X
Subject:
electrons; hydrogen; hydrogen production; iron; irradiation; nanotubes; photocatalysis; stainless steel
Abstract:
... An innovative flexible reticular photoanode (CdS-nanorods/CNTs coated on stainless iron mesh) was designed for efficiently driving photoelectrocatalytic (PEC) hydrogen (H₂) evolution under visible-light irradiation. Such CdS-NRs/CNTs-based flexible photoanodes exhibited a record-breaking H₂ evolution rate (728 mmol h⁻¹ g⁻¹) among the reported CdS-based photoanodes under visible-light irradiation o ...
DOI:
10.1039/c9cc00050j

37. A functionalized TiO2/Mg2TiO4 nano-layer on biodegradable magnesium implant enables superior bone-implant integration and bacterial disinfection

Author:
Zhengjie Lin; Ying Zhao; Paul K. Chu; Luning Wang; Haobo Pan; Yufeng Zheng; Shuilin Wu; Xuanyong Liu; Kenneth M.C. Cheung; Takman Wong; Kelvin W.K. Yeung
Source:
Biomaterials 2019 v.219 pp. 119372
ISSN:
0142-9612
Subject:
alloys; animals; bacteria; bacterial infections; biocompatibility; biodegradability; bone formation; corrosion; disinfection; ions; irradiation; magnesium; modulus of elasticity; prostheses; reactive oxygen species; titanium; titanium dioxide; ultraviolet radiation
Abstract:
... Rapid corrosion of biodegradable magnesium alloys under in vivo condition is a major concern for clinical applications. Inspired by the stability and biocompatibility of titanium oxide (TiO2) passive layer, a functionalized TiO2/Mg2TiO4 nano-layer has been constructed on the surface of WE43 magnesium implant by using plasma ion immersion implantation (PIII) technique. The customized nano-layer not ...
DOI:
10.1016/j.biomaterials.2019.119372

38. A genome-wide view of mutations in respiration-deficient mutants of Saccharomyces cerevisiae selected following carbon ion beam irradiation

Author:
Xiaopeng Guo; Miaomiao Zhang; Yue Gao; Guozhen Cao; Yang Yang; Dong Lu; Wenjian Li
Source:
Applied microbiology and biotechnology 2019 v.103 no.4 pp. 1851-1864
ISSN:
0175-7598
Subject:
Saccharomyces cerevisiae; breeding; carbon; chromosomes; genes; irradiation; mitochondria; mitochondrial genome; mutants; nuclear genome; screening; spontaneous mutation
Abstract:
... Mitochondrial dysfunction in Saccharomyces cerevisiae was selected as a marker of ion penetration following carbon ion beam (CIB) irradiation. Respiration-deficient mutants were screened. Following confirmation of negligible spontaneous mutation, eight genetically stable S. cerevisiae respiration-deficient mutant strains and a control strain were resequenced with ~ 200-fold read depth. Strategies ...
DOI:
10.1007/s00253-019-09626-0

39. A green physical approach to compatibilize a bio-based poly (lactic acid)/lignin blend for better mechanical, thermal and degradation properties

Author:
Ashish Kumar; Venkatappa Rao Tumu; Subhendu Ray Chowdhury; Ramana Reddy S.V.S.
Source:
International journal of biological macromolecules 2019 v.121 pp. 588-600
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; absorbed dose; crosslinking; glass transition temperature; irradiation; lignin; mixing; plastics; polylactic acid; thermal properties
Abstract:
... The poly (lactic acid) (PLA) and lignin (LG) are promising candidates to develop green plastic. However, the blending of lignin with PLA leads to incompatible blend with poor mechanical and thermal properties. Hence, in the present work, a green and simple approach was employed to make PLA/LG compatible blend with high lignin percentage (5 and 20%). The E-beam irradiated lignins having different a ...
DOI:
10.1016/j.ijbiomac.2018.10.057

40. A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance

Author:
Zehao Lin; Yongxin Lu; Jianguo Huang
Source:
Cellulose 2019 v.26 no.11 pp. 6683-6700
ISSN:
0969-0239
Subject:
cellulose; irradiation; methylene blue; nanocomposites; nanoparticles; nanosilver; nanotubes; norfloxacin; photocatalysis; pollutants; rhodamines; silver oxide; superoxide anion; titanium dioxide; ultraviolet radiation
Abstract:
... A series of hierarchical Ag₂O-nanoparticle/TiO₂-nanotube heterostructured nanocomposites with varied Ag₂O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO₂ nanotubes and fine Ag₂O nanoparticles that anchored on the surfaces. The composites exhibited enhanced p ...
DOI:
10.1007/s10570-019-02573-z

41. A highly stable metal–organic framework derived phosphorus doped carbon/Cu₂O structure for efficient photocatalytic phenol degradation and hydrogen production

Author:
Amare Aregahegn Dubale; Ibrahim Nasser Ahmed; Xia-Hui Chen; Cheng Ding; Gui-Hua Hou; Rong-Feng Guan; Xiangming Meng; Xiu-Li Yang; Ming-Hua Xie
Source:
Journal of materials chemistry A 2019 v.7 no.11 pp. 6062-6079
ISSN:
2050-7496
Subject:
coordination polymers; cuprous oxide; energy; hydrogen; hydrogen production; irradiation; light; phenol; phosphorus; photocatalysis; photocatalysts; photolysis; solar radiation; surface area; synergism
Abstract:
... Developing a low cost but efficient photocatalyst with maximum utilization of sunlight, minimum charge carrier recombination and improved stability is very crucial and challenging. Triphenylphosphine modification of HKUST-1 followed by controlled calcination resulted in a phosphorus doped carbon/Cu₂O composite (HKUST-1-P-300). The structure and band properties were fully studied, and phenol degrad ...
DOI:
10.1039/c8ta12544a

42. A hybrid nanomaterial with NIR-induced heat and associated hydroxyl radical generation for synergistic tumor therapy

Author:
Cheng Zhang; Wen-Long Liu; Xue-Feng Bai; Si-Xue Cheng; Zhen-Lin Zhong; Xian-Zheng Zhang
Source:
Biomaterials 2019 v.199 pp. 1-9
ISSN:
0142-9612
Subject:
biocompatibility; biomimetics; carbon; cell membranes; ceric oxide; fever; heat; hydrogen peroxide; hydroxyl radicals; irradiation; nanomaterials; near-infrared spectroscopy; neoplasm cells; neoplasms; oxygen; photochemotherapy; photothermotherapy; toxicity
Abstract:
... Although photothermal therapy (PTT) and photodynamic therapy (PDT) are widely commended for tumor treatment recently, they still suffer severe challenges due to the non-specificity of photothermal agents (PTAs)/photosensitizers (PSs) and hypoxic tumor microenvironment. Here, an oxygen independent biomimetic nanoplatform based on carbon sphere dotted with cerium oxide and coated by cell membrane (M ...
DOI:
10.1016/j.biomaterials.2019.01.041

43. A magnetically modified black phosphorus nanosheet-based heparin delivery platform for preventing DVT accurately

Author:
Huan Ouyang; Zhuli Zheng; Yutong Chen; Yu Liu; Can Hong; Yanglong Zhu; Jianjian Deng; Xingwei Ding; Weimin Zhou; Xiaolei Wang
Source:
Journal of materials chemistry B 2019 v.7 no.40 pp. 6099-6108
ISSN:
2050-7518
Subject:
biocompatibility; drug delivery systems; drugs; ex vivo studies; heparin; iron oxides; irradiation; magnetism; nanoparticles; nanosheets; near-infrared spectroscopy; overdose; phosphorus; polyethyleneimine
Abstract:
... A new heparin targeting delivery platform was developed based on iron oxide (Fe₃O₄) nanoparticles and polyethyleneimine (PEI) functionalized black phosphorus nanosheets (BP NSs). Both in and ex vivo studies suggested that this drug delivery platform (PEI/Fe₃O₄@BP NSs) possessed high heparin loading capacity (≈450%), accurate magnetic enrichment capacity, and good biocompatibility. With the aid of ...
DOI:
10.1039/c9tb01459d

44. A magnetically separable plate-like cadmium titanate–copper ferrite nanocomposite with enhanced visible-light photocatalytic degradation performance for organic contaminants

Author:
Kosar Jahanara; Saeed Farhadi
Source:
RSC advances 2019 v.9 no.27 pp. 15615-15628
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; energy; energy-dispersive X-ray analysis; ferrimagnetic materials; hydrogen peroxide; hydroxyl radicals; irradiation; magnetic separation; magnetism; methyl orange; methylene blue; nanocomposites; nanoparticles; optical properties; oxidation; photocatalysis; photocatalysts; photoluminescence; pollutants; reflectance spectroscopy; remediation; rhodamines; scanning electron microscopy; solar energy; surface area; transmission electron microscopy; trapping
Abstract:
... A novel magnetic cadmium titanate–copper ferrite (CdTiO₃/CuFe₂O₄) nanocomposite, in which spherical CuFe₂O₄ nanoparticles were loaded onto the surface of CdTiO₃ nanoplates, was successfully synthesized via a sol–gel hydrothermal route at 180 °C. The structure, morphology, magnetic and optical properties of the as-prepared nanocomposite were respectively characterized by Fourier transform infrared ...
DOI:
10.1039/c9ra01968e

45. A metabolomic strategy revealed the role of JA and SA balance in Clematis terniflora DC. Response to UVB radiation and dark

Author:
Bingxian Yang; Meng Chen; Tantan Wang; Xi Chen; Yaohan Li; Xin Wang; Wei Zhu; Li'an Xia; Xingjiang Hu; Jingkui Tian
Source:
Physiologia plantarum 2019 v.167 no.2 pp. 232-249
ISSN:
0031-9317
Subject:
Clematis terniflora; carbon; gamma-aminobutyric acid; irradiation; jasmonic acid; metabolomics; nitrogen; proline; proteomics; salicylic acid; secondary metabolites; signal transduction; transcriptomics; ultraviolet radiation
Abstract:
... Clematis terniflora DC. is a valuable resource with potential high pharmaceutical value. Proteomic, transcriptomic and metabolomic analyses of C. terniflora that has been exposed to high levels of UVB irradiation and dark conditions (HUVB + D) have revealed the mechanisms underlying its medicinal potential. However, the signal transduction pathways and the mechanisms of regulation for the accumula ...
DOI:
10.1111/ppl.12883

46. A microwave assisted method to synthesize nanoCoFe2O4@methyl cellulose as a novel metal-organic framework for antibiotic degradation

Author:
Alireza Nasiri; Fatemeh Tamaddon; Mohammad Hossein Mosslemin; Maryam Faraji
Source:
MethodsX 2019 v.6 pp. 1557-1563
ISSN:
2215-0161
Subject:
antibiotics; cellulose; coordination compounds; ferromagnetism; high performance liquid chromatography; irradiation; magnetic materials; metronidazole; microwave treatment; models; pH; photocatalysis; photocatalysts
Abstract:
... In this research, magnetically separable nanoCoFe₂O₄@methyl cellulose (MC) as a novel metal-organic framework was designed by a facile, fast, and new microwave-assisted method and then characterized. To assay the photocatalytic activity of nanoCoFe₂O₄@MC, its ability in metronidazole (MNZ) removal was investigated by considering the effect of some variables such as initial MNZ concentrations (5–20 ...
DOI:
10.1016/j.mex.2019.06.017
PubMed:
31309042
PubMed Central:
PMC6607300

47. A microwave-activated coal fly ash catalyst for the oxidative elimination of organic pollutants in a Fenton-like process

Author:
Nannan Wang; Han Xu; Shuo Li
Source:
RSC advances 2019 v.9 no.14 pp. 7747-7756
ISSN:
2046-2069
Subject:
aluminum; catalysts; catalytic activity; chromium; coal fly ash; hydrogen peroxide; iron; irradiation; leaching; manganese; microwave radiation; mixing; pH; pollutants; polyacrylamide; surface area; toxic substances; wastewater
Abstract:
... Raw coal fly ash was first activated by microwave irradiation to promote its catalytic potential and then used as a Fenton-like catalyst to treat polyacrylamide-contaminated wastewater. The optimal activation conditions of the raw coal fly ash (microwave power = 700 W, irradiation time = 10 min, mixing speed = 120 rpm, and raw coal fly ash loading = 20 g L⁻¹) were determined by the orthogonal test ...
DOI:
10.1039/c9ra00875f

48. A mitochondria-targeted iridium(iii)-based photoacid generator induces dual-mode photodynamic damage within cancer cells

Author:
Liang He; Ming-Fang Zhang; Zheng-Yin Pan; Kang-Nan Wang; Zi-Jian Zhao; Yi Li; Zong-Wan Mao
Source:
Chemical communications 2019 v.55 no.70 pp. 10472-10475
ISSN:
1364-548X
Subject:
anaerobic conditions; iridium; irradiation; mitochondria; neoplasm cells; neoplasms; photochemotherapy; photolysis; singlet oxygen
Abstract:
... A mitochondria-targeted photodynamic therapy (PDT) agent was designed and synthesized. Upon light irradiation, it can produce photoacid and its photolysis products can further sensitize ¹O₂ generation, causing dual-mode (oxygen-independent and oxygen-dependent) photodynamic damage in mitochondria and killing cancer cells effectively even under hypoxic conditions. ...
DOI:
10.1039/c9cc04871e

49. A multifunctional near-infrared laser-triggered drug delivery system using folic acid conjugated chitosan oligosaccharide encapsulated gold nanorods for targeted chemo-photothermal therapy

Author:
Panchanathan ManivasaganThese authors contributed equally to this work.; Seung Won Jun; Van Tu Nguyen; Nguyen Thanh Phong Truong; Giang Hoang; Sudip Mondal; Madhappan Santha Moorthy; Hyehyun Kim; Thi Tuong Vy Phan; Vu Hoang Minh Doan; Chang-Seok Kim; Junghwan Oh
Source:
Journal of materials chemistry B 2019 v.7 no.24 pp. 3811-3825
ISSN:
2050-7518
Subject:
absorbance; biocompatibility; chitosan; confocal laser scanning microscopy; drug delivery systems; drugs; encapsulation; flow cytometry; fluorescence microscopy; folic acid; gold; heat; image analysis; intravenous injection; irradiation; nanogold; nanorods; near-infrared spectroscopy; neoplasm cells; neoplasms; oligosaccharides; photochemotherapy; photostability; photothermotherapy; tissues
Abstract:
... The development of a new generation of multifunctional nanomaterials as a drug delivery system for chemo-photothermal therapy is of great necessity. In this study, we first prepared folic acid-conjugated and doxorubicin-loaded chitosan oligosaccharide encapsulated gold nanorods (FA–COS–TGA–GNRs–DOX) as a new photothermal agent for the delivery of drugs and heat to tumor areas. FA–COS–TGA–GNRs–DOX ...
DOI:
10.1039/c8tb02823k

50. A multifunctional persistent luminescent nanoprobe for imaging guided dual-stimulus responsive and triple-synergistic therapy of drug resistant tumor cells

Author:
Feng-Xia Su; Xu Zhao; Cong Dai; Yu-Jie Li; Cheng-Xiong Yang; Xiu-Ping Yan
Source:
Chemical communications 2019 v.55 no.36 pp. 5283-5286
ISSN:
1364-548X
Subject:
adverse effects; chemical reactions; doxorubicin; drug resistance; image analysis; irradiation; luminescence; neoplasm cells; neoplasms; small interfering RNA; therapeutics
Abstract:
... We report the design and fabrication of a multifunctional persistent luminescent nanoprobe for imaging guided dual-stimulus responsive and triple-synergistic therapy of drug resistant tumor. The integration of the dual-stimulus of an acidic microenvironment and laser irradiation with the triple-synergistic therapy of doxorubicin, photothermal and siRNA offers excellent therapeutic performance for ...
DOI:
10.1039/c9cc01446b

51. A multifunctional polymeric gene delivery system for circumventing biological barriers

Author:
Huajie Zhu; Jinxia An; Chengcai Pang; Shuai Chen; Wei Li; Jinbiao Liu; Qixian Chen; Hui Gao
Source:
Journal of materials chemistry B 2019 v.7 no.3 pp. 384-392
ISSN:
2050-7518
Subject:
DNA; cyclodextrins; dissociation; electrostatic interactions; gene expression; gene transfer; genes; glycerol; hydrophilicity; hydrophobicity; irradiation; lysosomes; pH; polymers; transcription (genetics)
Abstract:
... Aiming to circumvent the pre-defined obstacles in the journey of gene transportation, we attempt to compile a number of functional components into a tandem tri-copolymeric material. Herein, a β-cyclodextrin-functionalized poly(glycerol methacrylate) (PG) segment and a quaternary amine-functionalized poly[(2-acryloyl)-ethyl-(p-boronic acid pinacol ester benzyl)diethylammonium bromide] (BP) segment ...
DOI:
10.1039/c8tb03069c

52. A nanopump for low-temperature and efficient solar water evaporation

Author:
Yujie Zhao; Kaiqi Zhao; Junwen Yin; Jieying Yang; Jie Xu; Yizhuo Gu; Limin Liu; Jun Luo; Yan Li; Lidong Sun
Source:
Journal of materials chemistry A 2019 v.7 no.42 pp. 24311-24319
ISSN:
2050-7496
Subject:
absorption; alloys; desalination; energy; evaporation rate; heat transfer; hydrologic cycle; hydrophilicity; ions; irradiation; light intensity; mass transfer; nanotubes; oxygen; solar radiation; temperature; zirconium; zirconium oxide
Abstract:
... Water evaporation is a ubiquitous phenomenon in nature and the essential component of the water cycle on the earth. A high evaporation rate is required for application in desalination and sterilization, but remains a great challenge at a relatively low temperature under solar irradiation. In this study, free-standing membranes of highly ordered nanotube arrays are synthesized by anodizing the Zr–3 ...
DOI:
10.1039/c9ta09281a

53. A near infrared-modulated thermosensitive hydrogel for stabilization of indocyanine green and combinatorial anticancer phototherapy

Author:
Chanjuan Liu; Changping Ruan; Rui Shi; Bang-Ping Jiang; Shichen Ji; Xing-Can Shen
Source:
Biomaterials science 2019 v.7 no.4 pp. 1705-1715
ISSN:
2047-4849
Subject:
crosslinking; fever; half life; hydrogels; image analysis; irradiation; near-infrared spectroscopy; neoplasm cells; neoplasms; photochemotherapy; photothermotherapy; polymers; thermosensitivity
Abstract:
... Indocyanine green (ICG), a multifunctional near-infrared (NIR) imaging agent approved by the FDA, has been extensively used in clinical cancer theranosis, but limited by its inherent instability, short plasma half-life and lack of targeting ability. Herein, an in situ formed photothermal network based thermosensitive hydrogel (PNT-gel) constructed by using supramolecular cross-linking conjugated p ...
DOI:
10.1039/c8bm01541d

54. A near-infrared responsive germanium complex of Ge/GeO₂ for targeted tumor phototherapy

Author:
Yan Gao; Siqi Wang; Chunyu Yang; Na An; Zhao Liu; Mei Yan; Chongshen Guo
Source:
Journal of materials chemistry B 2019 v.7 no.33 pp. 5056-5064
ISSN:
2050-7518
Subject:
biocompatibility; cytotoxicity; germanium; heat; intravenous injection; irradiation; liquefaction; macrophages; mice; nanomaterials; near-infrared spectroscopy; necrosis; neoplasms; phototherapy; reactive oxygen species
Abstract:
... The development of photoactive nanomaterials with high biocompatibility for targeted tumor phototherapy is of great significance for antitumor applications; this study presents a novel phototherapeutic agent, the Ge/GeO₂ complex, which shows broad photoabsorption in the near infrared (NIR) region. As a result, it can synchronously produce reactive oxygen species (ROS) and heat under NIR irradiatio ...
DOI:
10.1039/c9tb00548j

55. A new approach to sizing the photovoltaic generator in self-consumption systems based on cost–competitiveness, maximizing direct self-consumption

Author:
D.L. Talavera; F.J. Muñoz-Rodriguez; G. Jimenez-Castillo; C. Rus-Casas
Source:
Renewable energy 2019 v.130 pp. 1021-1035
ISSN:
0960-1481
Subject:
ecosystem services; electric energy consumption; electricity; electricity costs; energy; households; irradiation; profitability; renewable energy sources; small businesses; Spain
Abstract:
... Applications for sizing Photovoltaic (PV) self-consumption systems have been studied over recent years in order to achieve either an optimization of the cost of energy, the investment cost or any economic profitability criteria. However, PV self-consumption systems at the residential or small business level can be designed with the aims of reducing the electricity consumption from the conventional ...
DOI:
10.1016/j.renene.2018.06.088

56. A new carbon-black/cellulose-sponge system with water supplied by injection for enhancing solar vapor generation

Author:
Shang Liu; Congliang Huang; Qiangqiang Huang; Fengchao Wang; Chuwen Guo
Source:
Journal of materials chemistry A 2019 v.7 no.30 pp. 17954-17965
ISSN:
2050-7496
Subject:
carbon; energy; evaporation; freshwater; irradiation; solar radiation; soot; surface temperature; vapors; water shortages
Abstract:
... The emerging solar vapor generation technology is becoming one of the most promising solar photothermal conversion technologies, which could relieve fresh water shortage. The traditional way of water supply in solar vapor generation systems is through sucking water directly from bulk water by capillary force, which cannot regulate the water injection rate to accommodate the changing outdoor irradi ...
DOI:
10.1039/c9ta02913c

57. A new chemical approach for proximity labelling of chromatin-associated RNAs and proteins with visible light irradiation

Author:
Lan Li; Jiying Liang; Hao Luo; K. Ming Tam; Edmund C. M. Tse; Ying Li
Source:
Chemical communications 2019 v.55 no.82 pp. 12340-12343
ISSN:
1364-548X
Subject:
RNA; Western blotting; chemical compounds; confocal microscopy; fluorescence; irradiation; oxidation; proteins; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; singlet oxygen
Abstract:
... A new nucleus-localized singlet oxygen generator was designed and synthesized. Its capability to label nucleus-localized biomolecules through spatially-restricted oxidation under visible light was validated using fluorescence confocal microscopy. Western blot and RT-qPCR were performed to verify the desirable spatial resolution through enriching chromatin-associated RNAs and proteins. ...
DOI:
10.1039/c9cc06251c

58. A new class of flavonoids bearing macrocyclic polyethers by stereoselective photochemical cycloaddition reaction

Author:
Hiroki Ishikawa; Naohiro Uemura; Ryo Taira; Kento Sano; Yasushi Yoshida; Takashi Mino; Yoshio Kasashima; Masami Sakamoto
Source:
Tetrahedron 2019 pp. -
ISSN:
0040-4020
Subject:
X-ray diffraction; chemical structure; cycloaddition reactions; dimerization; esters; flavonoids; irradiation; photolysis; stereochemistry; stereoselectivity
Abstract:
... A new class of flavonoids bearing cyclic polyethers involving a phenyl ring was conveniently provided by the intramolecular photochemical dimerization of 2-chromonecarboxylic esters. Irradiation of 2-chromonecarboxylate with a polyether tethered at both ends promoted intramolecular [2 + 2] cyclobutane formation leading to 14- to 27-membered cyclic polyethers. The efficiency depended on the substit ...
DOI:
10.1016/j.tet.2019.06.007

59. A new drug carrier with oxygen generation function for modulating tumor hypoxia microenvironment in cancer chemotherapy

Author:
Zhe Zhang; Na Niu; Xi Gao; Fuqin Han; Zhijun Chen; Shujun Li; Jian Li
Source:
Colloids and surfaces 2019 v.173 pp. 335-345
ISSN:
0927-7765
Subject:
antineoplastic activity; antineoplastic agents; colloids; drug resistance; drug therapy; gold; hypoxia; iron oxides; irradiation; magnetic fields; magnetic materials; nanocarriers; neoplasm cells; neoplasms; oxygen; oxygen production; pH; porous media; reactive oxygen species; silica
Abstract:
... Hypoxia is the main characteristic of tumor microenvironment, and the one of the key factors that cause the drug resistance of cancer cells for chemotherapy. Anticancer drug such as DOX cannot react with sufficient oxygen to produce reactive oxygen species (ROS) in hypoxic environment, which affects the therapeutic efficiency of the drug. In this work, we constructed a multi-functional nano-carrie ...
DOI:
10.1016/j.colsurfb.2018.10.008

60. A new pathway of monomethylmercury photodegradation mediated by singlet oxygen on the interface of sediment soil and water

Author:
Feng Sheng; Jingyi Ling; Ran Hong; Xin Jin; Chao Wang; Huan Zhong; Xueyuan Gu; Cheng Gu
Source:
Environmental pollution 2019 v.248 pp. 667-675
ISSN:
0269-7491
Subject:
aquatic ecosystems; aquatic environment; irradiation; mercury; methylmercury compounds; photolysis; risk; sediments; singlet oxygen; soil; soil organic matter; solar radiation; China
Abstract:
... Photodegradation is an important pathway for monomethylmercury (MeHg) degradation in aquatic ecosystems. In this process, dissolved organic matter (DOM) plays an essential role. However, little information is available regarding the photo-transformation of MeHg in shallow aquatic environments, where a significant portion of MeHg is associated with soil suspensions. In this study, 14 soils sampled ...
DOI:
10.1016/j.envpol.2019.02.047

61. A new sustainable approach towards preparation of sunlight active Ag/AgBr Janus nanoparticles using non-toxic surface active ionic liquid

Author:
Gurbir Singh; Komal; Gagandeep Singh; Manvir Kaur; Tejwant Singh Kang
Source:
Journal of materials chemistry A 2019 v.7 no.10 pp. 5185-5189
ISSN:
2050-7496
Subject:
bromides; ionic liquids; irradiation; nanoparticles; p-nitrophenol; photocatalysis; photolysis; silver; silver nitrate; solar radiation; stabilizers; white light
Abstract:
... The development of benign and easily implementable methods for preparation of symmetry controlled nano-materials for catalytic applications under sunlight or white light is a challenging task. A single step strategy and utilization of minimal chemicals under aqueous conditions under sunlight represents the first example of its kind. Herein, photocatalytically active Ag/AgBr Janus nanoparticles (JN ...
DOI:
10.1039/c9ta00178f

62. A new synthetic pathway based on one-pot sequential aza-Michael addition and photoCuAAC click reactions

Author:
Boyang Yin; Céline Croutxé-Barghorn; Christelle Delaite; Xavier Allonas
Source:
RSC advances 2019 v.9 no.9 pp. 4824-4831
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; alkynes; azides; copper; cycloaddition reactions; irradiation; liquids; nuclear magnetic resonance spectroscopy
Abstract:
... A solvent-free process is described for the synthesis of tailor-made molecules from a one-pot, two-step approach combining aza-Michael addition and photoinduced copper(i) catalysed azide–alkyne (photo-CuAAC) reactions. After the first reaction between an amine and an acrylate, cycloaddition between an azide and an alkyne is activated by light irradiation in the presence of a copper complex. The ki ...
DOI:
10.1039/c8ra10011j

63. A non-conjugated polyethylenimine copolymer-based unorthodox nanoprobe for bioimaging and related mechanism exploration

Author:
Leihou ShaoThese authors contributed equally to this work.; Kaiwei Wan; Hui Wang; Yankun Cui; Caiyan Zhao; Jianqing Lu; Xianlei Li; Long Chen; Xinyue Cui; Xuan Wang; Xiongwei Deng; Xinghua Shi; Yan Wu
Source:
Biomaterials science 2019 v.7 no.7 pp. 3016-3024
ISSN:
2047-4849
Subject:
biocompatibility; composite polymers; fluorescence; fluorescent dyes; image analysis; irradiation; molecular dynamics; nanotechnology; photoluminescence; photostability; polyethyleneimine; ultraviolet radiation
Abstract:
... Unconventional non-conjugated photoluminescent polymers have attracted increasing attention in bioimaging application, however their nonclassical photoluminescence mechanisms remain largely unclear. Herein, an amphiphilic copolymer polyethyleneimine-poly(d,l-lactide) (PEI-PDLLA) was synthesized and the obtained PEI-PDLLA copolymer exhibited intrinsic visible blue luminescence in the solid and conc ...
DOI:
10.1039/c9bm00516a

64. A novel Ag-BiOBr-rGO photocatalyst for enhanced ketoprofen degradation: Kinetics and mechanisms

Author:
Guanghui Xu; Ming Li; Yang Wang; Na Zheng; Li Yang; Hongwen Yu; Yong Yu
Source:
Science of the total environment 2019 v.678 pp. 173-180
ISSN:
0048-9697
Subject:
electron paramagnetic resonance spectroscopy; graphene oxide; irradiation; ketoprofen; liquid chromatography; photocatalysis; photocatalysts; superoxide anion; tandem mass spectrometry; wastewater
Abstract:
... Ag-BiOBr-reduced graphene oxide (rGO) was synthesized for the first time and used to promote photocatalytic activity under visible-light irradiation. The Ag-BiOBr-rGO showed an excellent photocatalytic activity to degrade ketoprofen compared with other photocatalysts. The composites were comprehensively characterized to explore the mechanisms of the enhancement. Electron Paramagnetic Resonance and ...
DOI:
10.1016/j.scitotenv.2019.04.418

65. A novel BiVO4-GO-TiO2-PANI composite for upgraded photocatalytic performance under visible light and its non-toxicity

Author:
Jingjing Zhao; Md Rokon Ud Dowla Biswas; Won-Chun Oh
Source:
Environmental science and pollution research international 2019 v.26 no.12 pp. 11888-11904
ISSN:
0944-1344
Subject:
Bacillus subtilis; Staphylococcus aureus; irradiation; light; methylene blue; phenol; photocatalysis; photocatalysts; photolysis; toxicity testing
Abstract:
... A novel non-toxic hybrid BiVO₄-GO-TiO₂-polyaniline (PANI) (BVGT-PANI) composite with superior photocatalysis was successfully prepared via a one-pot hydrothermal reaction. The structural and morphological characterizations of the synthesized compounds were analyzed by a series of techniques. We found excellent photocatalytic efficiencies for methylene blue (MB) and phenol degradation under visible ...
DOI:
10.1007/s11356-019-04441-6

66. A novel L-Histidine (C, N) codoped-TiO2-CdS nanocomposite for efficient visible photo-degradation of recalcitrant compounds from wastewater

Author:
Hadis Zangeneh; Ali Akbar Zinatizadeh; Sirus Zinadini; Mostafa Feyzi; Ezzat Rafiee; Detlef W. Bahnemann
Source:
Journal of hazardous materials 2019 v.369 pp. 384-397
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; chemical oxygen demand; histidine; irradiation; methyl orange; nanocomposites; nanoparticles; oil mill effluents; optical properties; pH; photocatalysts; photoluminescence; photolysis; reflectance spectroscopy; response surface methodology; scanning electron microscopy; titanium dioxide; wastewater
Abstract:
... The aim of current study is to synthesis novel visible driven photocatalysts (L-Histidine (C, N) codoped-TiO2-CdS) with different loadings of L-Hisitdine (1, 2, and 3 wt.%) and CdS (1:9, 7:1, and 1:5 mass ratios of CdS to TiO2). Then, their application for photo-degradation of methyl orange (MO) and biologically treated palm oil mill effluent (POME) were studied. The structure, optical properties, ...
DOI:
10.1016/j.jhazmat.2019.02.049

67. A novel NIR-controlled NO release of sodium nitroprusside-doped Prussian blue nanoparticle for synergistic tumor treatment

Author:
Tao Feng; Jingyuan Wan; Pan Li; Haitao Ran; Huali Chen; Zhigang Wang; Liangke Zhang
Source:
Biomaterials 2019 v.214 pp. 119213
ISSN:
0142-9612
Subject:
absorption; antineoplastic agents; breast neoplasms; chemical structure; drug therapy; irradiation; lungs; metastasis; mice; nanoparticles; near-infrared spectroscopy; neoplasm cells; nitric oxide; nitroprusside; photothermotherapy; porous media; synergism
Abstract:
... Nitric oxide (NO) has shown positive effects in tumor treatment. However, controlling NO release in specific targets is still a crucial challenge for antitumor therapy. Considering that sodium nitroprusside (SNP) and potassium ferricyanide have similar chemical structures, a near infrared (NIR) laser-controlled NO release nanoplatform has been fabricated by allowing SNP to participate in mesoporou ...
DOI:
10.1016/j.biomaterials.2019.05.024

68. A novel graphene oxide-carbon nanotubes anchored α-FeOOH hybrid activated persulfate system for enhanced degradation of Orange II

Author:
Shanshan Su; Yuyang Liu; Wei He; Xianchun Tang; Wei Jin; Yaping Zhao
Source:
Journal of environmental sciences (China) 2019 v.83 pp. 73-84
ISSN:
1001-0742
Subject:
acid orange 7; aerogels; catalytic activity; chemical bonding; decolorization; graphene; graphene oxide; iron; irradiation; nanocomposites; nanotubes; oxidation; pollutants; potassium persulfate; reactive oxygen species; recycling; remediation; ultraviolet radiation
Abstract:
... Persulfate activation has been applied as one of the efficient advanced oxidation processes (AOPs) to remediate polluted environments. In this study, a novel α-FeOOH anchored by graphene oxide (GO)-carbon nanotubes (CNTs) aerogel (α-FeOOH@GCA) nanocomposite activated persulfate system (α-FeOOH@GCA + K2S2O8) was applied for decolorization of Orange II (OII). The decolorization of OII was remarkably ...
DOI:
10.1016/j.jes.2019.02.015

69. A novel magnetic MIL-101(Fe)/TiO2 composite for photo degradation of tetracycline under solar light

Author:
Lei He; Yanan Dong; Yane Zheng; Qingming Jia; Shaoyun Shan; Yaqin Zhang
Source:
Journal of hazardous materials 2019 v.361 pp. 85-94
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; coordination polymers; energy-dispersive X-ray analysis; free radicals; hydroxyl radicals; iron; irradiation; magnetic materials; magnetism; pH; photolysis; scanning electron microscopy; solar radiation; superoxide anion; tetracycline; thermogravimetry; titanium dioxide; transmission electron microscopy; ultraviolet radiation; wastewater
Abstract:
... A novel magnetic MIL-101(Fe)/TiO2 composite was synthesized for photo degradation of tetracycline (TC) under solar light. The composite was characterized by XRD, TGA, SEM, TEM, EDS, BET, FTIR, XPS, VSM, ESR, and PL. The resultant composite was environment friendly material, which exhibited high TC degradation efficiency and excellent reusability. In the meantime, it could be separated easily from ...
DOI:
10.1016/j.jhazmat.2018.08.079

70. A novel magnetic bifunctional nanocomposite scaffold for photothermal therapy and tissue engineering

Author:
Samaneh Saber-Samandari; Mohammad Mohammadi-Aghdam; Saeed Saber-Samandari
Source:
International journal of biological macromolecules 2019 v.138 pp. 810-818
ISSN:
0141-8130
Subject:
Fourier transform infrared spectroscopy; adsorption; biocompatibility; biodegradation; bones; bovine serum albumin; carbon nanotubes; ceramics; energy-dispersive X-ray analysis; gelatin; iron oxides; irradiation; lysozyme; magnetism; mechanical properties; nanocomposites; nanoparticles; near infrared radiation; neoplasms; osteoblasts; photothermotherapy; polymers; scanning electron microscopy; tissue engineering; tissue repair; transmission electron microscopy
Abstract:
... In recent years, porous bifunctional scaffolds with hyperthermal and tissue regeneration functions play an essential role in the efficient cancerous bone tumors treatment. In this work, the nanocomposite scaffolds of gelatin (polymer phase) and akermanite (ceramic phase) were prepared by entrapping carboxyl-functionalized multi-walled carbon nanotube (MWNT) and embedding magnetic nanoparticles of ...
DOI:
10.1016/j.ijbiomac.2019.07.145

71. A novel modified PP separator by grafting PAN for high-performance lithium–sulfur batteries

Author:
Chengbin Li; Hongyun Yue; Qiuxian Wang; Mengjiao Shi; Huishuang Zhang; Xiangnan Li; Hongyu Dong; Shuting Yang
Source:
Journal of materials science 2019 v.54 no.2 pp. 1566-1579
ISSN:
0022-2461
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; absorption; batteries; irradiation; liquids; polyacrylonitrile; polypropylenes; scanning electron microscopy; separators; thermal stability; wettability
Abstract:
... A novel modified separator was synthesized with an ultraviolet irradiated polypropylene (PP) membrane and acrylonitrile monomers by a solution grafting reaction. It was demonstrated that polyacrylonitrile (PAN) was grafted on the PP separator surface by analyzing the results of FESEM, ATR–FTIR and XPS. The thermostability and wettability of the PAN-grafted PP (PP-g-PAN) separator were enhanced. Th ...
DOI:
10.1007/s10853-018-2903-2

72. A novel n-type CdS nanorods/p-type LaFeO₃ heterojunction nanocomposite with enhanced visible-light photocatalytic performance

Author:
Akram-Alsadat Hoseini; Saeed Farhadi; Abedin Zabardasti; Firouzeh Siadatnasab
Source:
RSC advances 2019 v.9 no.42 pp. 24489-24504
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; cadmium sulfide; energy; energy-dispersive X-ray analysis; free radicals; hydrogen peroxide; hydroxyl radicals; irradiation; methyl orange; methylene blue; nanocomposites; nanoparticles; nanorods; photocatalysis; photocatalysts; photoluminescence; reflectance spectroscopy; rhodamines; scanning electron microscopy; semiconductors; surface area; synergism; transmission electron microscopy
Abstract:
... In this work, a novel n-type CdS nanorods/p-type LaFeO₃ (CdS NRs/LFO) nanocomposite was prepared, for the first time, via a facile solvothermal method. The as-prepared n-CdS NRs/p-LFO nanocomposite was characterized by using powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), high-resolution tr ...
DOI:
10.1039/c9ra04265b

73. A novel role for NFIA in restoring radiosensitivity in radioresistant NSCLC cells by downregulating the AKT and ERK pathways

Author:
Cheng Sun; Yuexian Li; Yonggang Tan; Heying Zhang; Yusi Liang; Juan Zeng; Jinyang Yu; Huawei Zou
Source:
Biochemical and biophysical research communications 2019 v.515 no.4 pp. 558-564
ISSN:
0006-291X
Subject:
DNA damage; apoptosis; cell lines; gene expression regulation; gene overexpression; ionizing radiation; irradiation; lung neoplasms; mitogen-activated protein kinase; patients; phosphorylation; radiation resistance; radiotherapy
Abstract:
... Radioresistance remains the most challenging issue leading to radiotherapy failure in the treatment of non-small cell lung cancer (NSCLC). The nuclear factor IA (NFIA) is associated with tumor response to treatments in many cancers, but its role in NSCLC radioresistance remains unclear. Here, we established two radioresistant NSCLC cell lines, H226R and H460R, by dose-gradient irradiation to inves ...
DOI:
10.1016/j.bbrc.2019.06.011

74. A novel synthesis of oleophylic Fe2O3/polystyrene fibers by γ-Ray irradiation for the enhanced photocatalysis of 4-chlorophenol and 4-nitrophenol degradation

Author:
Ji-Chao Wang; Ying Li; Heng Li; Zeng-Hui Cui; Yuxia Hou; Weina Shi; Kai Jiang; Lingbo Qu; Yu-Ping Zhang
Source:
Journal of hazardous materials 2019 v.379 pp. 120806
ISSN:
0304-3894
Subject:
4-chlorophenol; adsorption; catalysts; ferric oxide; gamma radiation; hydrophobicity; hydroxyl radicals; irradiation; moieties; nanoparticles; p-nitrophenol; phenol; photocatalysis; pollutants; synergism; wastewater treatment
Abstract:
... Photocatalytic degradation by efficient and easy recyclable semiconductor-catalysts is an ideal way to solve the environmental problem. A series of Fe2O3/Polystyrene (Fe2O3/PS) composite fibers with hydrophobic property were obtained by the electrospinning and γ-Ray irradiation methods. The γ-Ray irradiation treatment not only formed steady micro-nano construction of nanoparticles and fiber, but a ...
DOI:
10.1016/j.jhazmat.2019.120806

75. A novel two-layer honeycomb sandwich structure absorber with high-performance microwave absorption

Author:
Hui Luo; Fu Chen; Xian Wang; Weiyong Dai; Ying Xiong; Jiaji Yang; Rongzhou Gong
Source:
Composites 2019 v.119 pp. 1-7
ISSN:
1359-835X
Subject:
absorption; combs (social insects); composite materials; dipping; electromagnetic radiation; epoxides; iron; irradiation; soot
Abstract:
... A novel method for fabricating the two-layer honeycomb sandwich structure absorber (THSSA) was developed. The honeycomb cores with different pore sizes coated with epoxy resin filled with conductive carbon black as lossy filler have been fabricated by dipping processes. The microwave absorption properties of the honeycomb sandwich structure absorber (HSSA) with one-layer honeycomb core and two-lay ...
DOI:
10.1016/j.compositesa.2019.01.015

76. A pH-Activatable nanoparticle for dual-stage precisely mitochondria-targeted photodynamic anticancer therapy

Author:
Tong Qi; Binlong Chen; Zenghui Wang; Hongliang Du; Dechun Liu; Qingqing Yin; Bangyuan Liu; Qiang Zhang; Yiguang Wang
Source:
Biomaterials 2019 v.213 pp. 119219
ISSN:
0142-9612
Subject:
animal ovaries; apoptosis; composite polymers; fluorescence; humans; image analysis; irradiation; mice; mitochondria; nanocarriers; nanoparticles; neoplasm cells; ovarian neoplasms; pH; photochemotherapy; photosensitizing agents; singlet oxygen; toxicity
Abstract:
... Mitochondria-targeted photodynamic therapy (PDT) has emerged as one of the most efficient antitumor strategies. However, the therapeutic outcome of mitochondria-targeted PDT nanocarriers has been hampered by its poor capability of endosome escape and always-ON mode which induces normal tissue damage. To tackle these limitations, herein a novel pH-activatable nanoparticle is developed with dual-sta ...
DOI:
10.1016/j.biomaterials.2019.05.030

77. A polydopamine-coated LAPONITE®-stabilized iron oxide nanoplatform for targeted multimodal imaging-guided photothermal cancer therapy

Author:
Mengxue Liu; Jiulong Zhang; Xin Li; Chao Cai; Xueyan Cao; Xiangyang Shi; Rui Guo
Source:
Journal of materials chemistry B 2019 v.7 no.24 pp. 3856-3864
ISSN:
2050-7518
Subject:
biocompatibility; coprecipitation; image analysis; iron oxides; irradiation; magnetism; models; nanoparticles; near infrared radiation; neoplasm cells; neoplasms; phenylboronic acids; photothermotherapy; precision medicine; sialic acid
Abstract:
... The development of theranostic nanoplatforms with accurate diagnosis and effective therapy performance is crucial for precision medicine applications. Herein, we developed a novel targeted theranostic nanoplatform for magnetic resonance (MR) and photoacoustic (PA) imaging-guided photothermal therapy of cancer cells overexpressing sialic acid (SA). Firstly, LAPONITE® (LAP)-stabilized Fe₃O₄ nanopart ...
DOI:
10.1039/c9tb00398c

78. A porous hybrid material based on calixarene dye and TiO₂ demonstrating high and stable photocatalytic performance

Author:
Yi-Fan Chen; Jian-Feng Huang; Min-Hui Shen; Jun-Min Liu; Li-Bo Huang; Yu-Hui Zhong; Su Qin; Jing Guo; Cheng-Yong Su
Source:
Journal of materials chemistry A 2019 v.7 no.34 pp. 19852-19861
ISSN:
2050-7496
Subject:
carbon dioxide; carbon monoxide; catalysts; dyes; electron transfer; hydrogen production; irradiation; light; nanoparticles; photocatalysis; platinum; porosity; porous media; rhenium; sol-gel processing; surface area; titanium dioxide
Abstract:
... A highly robust hybrid material based on calixarene dye (HO-TPA) and titanium dioxide with a micro/mesoporous structure and a large surface area (denoted as HO-TPA–TiO₂) has been prepared by a facile sol–gel method. When Pt nanoparticles (Pt NPs) or fac-[Re(4,4′-disphosphonic acid-2,2′-bipyridine)(CO)₃Cl] (ReP) as co-catalysts are introduced onto the hybrids, respectively, the two hybrid systems c ...
DOI:
10.1039/c9ta06038c

79. A promising europium-based down conversion material: organic–inorganic perovskite solar cells with high photovoltaic performance and UV-light stability

Author:
Naveed Ur Rahman; Wasim Ullah Khan; Shaukat Khan; Xiaojie Chen; Javid Khan; Juan Zhao; Zhiyong Yang; Mingmei Wu; Zhenguo Chi
Source:
Journal of materials chemistry A 2019 v.7 no.11 pp. 6467-6474
ISSN:
2050-7496
Subject:
irradiation; light; photolysis; relative humidity; solar cells; solar energy; ultraviolet radiation
Abstract:
... Metal halide perovskite solar cells (PSCs) have been studied over the past few years and high power conversion efficiency (PCE) has been achieved. However, the adverse instability remains a key factor restricting wider application of PSCs. Herein, we report, for the first time, a viable strategy to incorporate a down conversion nanophosphor Sr₂CeO₄:Eu³⁺ (SCOE) into PSCs, and more importantly SCOE ...
DOI:
10.1039/c9ta00551j

80. A ratiometric fluorescence platform based on boric-acid-functional Eu-MOF for sensitive detection of H2O2 and glucose

Author:
Yu Cui; Fei Chen; Xue-Bo Yin
Source:
Biosensors & bioelectronics 2019 v.135 pp. 208-215
ISSN:
0956-5663
Subject:
Lewis bases; biosensors; carboxylic acids; color; energy transfer; europium; fluorescence; glucose; hydrogen peroxide; irradiation; metabolites; ultraviolet radiation
Abstract:
... A Eu-metal organic framework (Eu-MOF) probe with dual-emission was reported for the ratiometric fluorescence detection of H2O2 and glucose. Because of the special nucleophilic reaction between boric group and H2O2, Eu3+ and 5-boronobenzene-1,3-dicarboxylic acid (BBDC) were selected to synthesize the functional MOF probe via a simple one-pot solvothermal method. The Eu-MOF shows dual-emission at 37 ...
DOI:
10.1016/j.bios.2019.04.008

81. A recyclable nanosheet of Mo/N-doped TiO2 nanorods decorated on carbon nanofibers for organic pollutants degradation under simulated sunlight irradiation

Author:
Jinli Qiu; Fuqiang Liu; Cailiang Yue; Chen Ling; Aimin Li
Source:
Chemosphere 2019 v.215 pp. 280-293
ISSN:
0045-6535
Subject:
bisphenol A; carbon nanofibers; electrospray ionization mass spectrometry; inorganic salts; ion exchange chromatography; irradiation; lighting; methylene blue; mineralization; nanoparticles; nanorods; nanosheets; organic matter; photocatalysis; pollutants; recycling; sulfamethoxazole; titanium dioxide; trapping; wastewater
Abstract:
... A novel nanosheet of Mo/N-codoped TiO₂ nanorods immobilized on carbon nanofibers (MNTC nanosheet) was self-synthesized through two facile steps. The Mo/N-doped TiO₂ nanorods dispersed through in situ growth on the network constructed by long and vertical carbon nanofibers (CNFs). The fabricated MNTC nanosheet displayed superb photocatalytic activity of methylene blue (MB), and the degradation rati ...
DOI:
10.1016/j.chemosphere.2018.09.182

82. A regularly combined magnetic 3D hierarchical Fe3O4/BiOBr heterostructure: Fabrication, visible-light photocatalytic activity and degradation mechanism

Author:
Jianhui Li; Fan Yang; Quan Zhou; Ruipeng Ren; Lijie Wu; Yongkang Lv
Source:
Journal of colloid and interface science 2019 v.546 pp. 139-151
ISSN:
0021-9797
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; aquatic environment; catalysts; free radicals; iron oxides; irradiation; liquid chromatography; magnetic separation; magnetism; mass spectrometry; nanosheets; nanospheres; photocatalysis; photosensitivity; rhodamines; scanning electron microscopy; transmission electron microscopy
Abstract:
... The magnetic Fe3O4/BiOBr composites with different molar ratios were prepared by a new two-step method. The effect of different Fe3O4 contents on composites’ properties was detected through XRD, SEM, TEM, HR-TEM, XPS, Uv–vis DRS, PL and BET. When the molar ratio of Fe3O4 nanospheres and BiOBr nanosheets is 0.5:1, the two are combined regularly to form 3D flower-like hierarchical heterostructure. T ...
DOI:
10.1016/j.jcis.2019.03.028

83. A sandwich-type polyoxometalate for efficient noble-metal-free hydrogen evolution upon visible light irradiation

Author:
Guan-Hua Zhang; Wen-Bin Yang; Wei-Ming Wu; Xiao-Yuan Wu; Lei Zhang; Xiao-Fei Kuang; Sa-Sa Wang; Can-Zhong Lu
Source:
Journal of catalysis 2019 v.369 pp. 54-59
ISSN:
0021-9517
Subject:
fluorescein; hydrogen production; irradiation; photosensitizing agents; spectral analysis; triethylamine
Abstract:
... A novel sandwich-type polyoxometalate, [Niᴵᴵ₄(H₂O)₂(TiW₉O₃₄)₂]¹²⁻(Ni₄Ti₂), has been developed for noble-metal-free hydrogen evolution reaction (HER). Employing a simple three-component catalytic system, with triethylamine as sacrificial donor and fluorescein as photosensitizer, Ni₄Ti₂ exhibits outstanding efficiency in hydrogen evolution upon visible light irradiation. The turnover number (TON) of ...
DOI:
10.1016/j.jcat.2018.08.023

84. A self-powered photoelectrochemical biosensor for H2O2, and xanthine oxidase activity based on enhanced chemiluminescence resonance energy transfer through slow light effect in inverse opal TiO2

Author:
Bekir Çakıroğlu; Mahmut Özacar
Source:
Biosensors & bioelectronics 2019 v.141 pp. 111385
ISSN:
0956-5663
Subject:
absorption; biosensors; cadmium sulfide; chemiluminescence; crystals; electric current; electrodes; energy transfer; enzyme activity; heme; hydrogen peroxide; irradiation; opal; photons; polystyrenes; quantum dots; surface area; titanium dioxide; xanthine oxidase
Abstract:
... TiO₂ inverse opal photonic crystals (IOPCs) were fabricated by using polystyrene template. TiO₂ IOPCs based photoelectrochemical (PEC) biosensor was fabricated for the precise and stable detection of Heme without external irradiation. Then, the sensitization of TiO₂ IOPCs was fulfilled with CdS quantum dots (QDs) by SILAR method to form ITO-TiO₂ IOPCs–CdS:Mn electrode, which in turn was used to co ...
DOI:
10.1016/j.bios.2019.111385

85. A shape-shifting composite hydrogel sheet with spatially patterned plasmonic nanoparticles

Author:
Hongyu Guo; Yijing Liu; Yang Yang; Guangyu Wu; Kerry Demella; Srinivasa R. Raghavan; Zhihong Nie
Source:
Journal of materials chemistry B 2019 v.7 no.10 pp. 1679-1683
ISSN:
2050-7518
Subject:
deformation; heat; hydrogels; irradiation; medicine; nanogold; nanoparticles; near infrared radiation; robots; temperature
Abstract:
... We report a simple and reliable approach to fabricate composite hydrogel sheets with spatially patterned regions of plasmonic gold nanoparticles using a combination of contact printing and diffusion-controlled galvanic replacement reaction. In response to near-infrared laser irradiation, the localized increase in temperature induced the controlled shape deformation of the composite hydrogels, due ...
DOI:
10.1039/c8tb01959b

86. A signal-on photoelectrochemical biosensor for detecting cancer marker type IV collagenase by coupling enzyme cleavage with exciton energy transfer biosensing

Author:
Jiexia Chen; Guang-Chao Zhao; Yan Wei; Dexiang Feng
Source:
Analytical methods 2019 v.11 no.46 pp. 5880-5885
ISSN:
1759-9679
Subject:
analytical methods; biosensors; catalytic activity; collagenase; electric current; electrochemistry; electrodes; energy transfer; hydrolysis; indium tin oxide; irradiation; nanosilver; neoplasms; photochemistry; quantum dots; synthetic peptides
Abstract:
... A signal-on photoelectrochemical (PEC) biosensing platform was developed here for the highly sensitive detection of a cancer marker type IV collagenase, which relied on the exciton energy transfer (EET) between CdTe quantum dots (QDs) and Ag nanoparticles (NPs) combined with the catalytic hydrolysis of a protease. A special sequence peptide chain with positively charged arginines at one end and a ...
DOI:
10.1039/c9ay01601e

87. A simple and sensitive SERS quantitative analysis method for urea using the dimethylglyoxime product as molecular probes in nanosilver sol substrate

Author:
Aihui Liang; Haolin Wang; Dongmei Yao; Zhiliang Jiang
Source:
Food chemistry 2019 v.271 pp. 39-46
ISSN:
0308-8146
Subject:
Raman spectroscopy; foods; irradiation; nanosilver; quantitative analysis; silver; silver nitrate; sodium citrate; statistical analysis; urea
Abstract:
... Under the light wave irradiation, the stable and highly surface enhanced Raman scattering (SERS) active silver nanosol (AgNP) was prepared by reduction of AgNO₃, using sodium citrate as reducer. Urea reacted with dimethylglyoxime to produce 4,5-dimethyl-2-imidazole ketone that exhibited a strong SERS peak at 1320 cm⁻¹ in the as-prepared AgNPs substrate. Under the selected conditions, the increased ...
DOI:
10.1016/j.foodchem.2018.07.149

88. A simple method to prepare g-C3N4-TiO2/waste zeolites as visible-light-responsive photocatalytic coatings for degradation of indoor formaldehyde

Author:
Shou-Heng Liu; Wei-Xing Lin
Source:
Journal of hazardous materials 2019 v.368 pp. 468-476
ISSN:
0304-3894
Subject:
adsorption; air; air quality; carbon nitride; coatings; electron paramagnetic resonance spectroscopy; electrons; formaldehyde; graphene; irradiation; photocatalysis; photocatalysts; pollutants; silicates; sol-gel processing; superoxide anion; titanium dioxide; wastes; zeolites
Abstract:
... The indoor air quality should be highly addressed because people spend more time staying in indoor environments. Photocatalytic degradation of indoor pollutants (e.g., formaldehyde) is one of the most promising and environmental friendly technologies. In this work, a heterostructured photocatalyst combining graphitic carbon nitride (g-C3N4), TiO2 and waste zeolites (g-C3N4-TiO2/waste zeolites) is ...
DOI:
10.1016/j.jhazmat.2019.01.082

89. A simple sensing of hazardous photo-induced superoxide anion radicals using a molecular probe in ZnO-Nanoparticles aqueous medium

Author:
Henry Agbe; Nadeem Raza; David Dodoo-Arhin; R. Vasant Kumar; Ki-Hyun Kim
Source:
Environmental research 2019 v.176 pp. 108424
ISSN:
0013-9351
Subject:
aqueous solutions; colorimetry; irradiation; nanoparticles; oxygen; particle size; photocatalysis; photolysis; product safety; reactive oxygen species; sunscreens; tetrazolium; zeta potential; zinc oxide
Abstract:
... The generation of reactive oxygen species (ROS) during the photolysis of sunscreens and sun blockers poses consumer safety concerns while necessitating proper identification and quantitation of ROS species. Here, a colorimetric sensing approach has been developed based on a molecular probe (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2-H-tetrazolium-5-carboxanilide (XTT) tetrazolium salt) to quantit ...
DOI:
10.1016/j.envres.2019.03.062

90. A solar-driven continuous hydrothermal pretreatment system for biomethane production from microalgae biomass

Author:
Chao Xiao; Qiang Liao; Qian Fu; Yun Huang; Hao Chen; Hong Zhang; Ao Xia; Xun Zhu; Alissara Reungsang; Zhidan Liu
Source:
Applied energy 2019 v.236 pp. 1011-1018
ISSN:
0306-2619
Subject:
anaerobic digestion; biogas; biomass; carbohydrates; energy; energy conservation; irradiation; methane; methane production; microalgae; organic matter; proteins; slurries; solar collectors; solar energy
Abstract:
... Hydrothermal pretreatment is an efficient approach to enhance methane production from microalgae biomass by anaerobic digestion. However, the high energy consumption hinders the development of hydrothermal pretreatment. In this study, a solar-driven hydrothermal pretreatment system was proposed to save energy in hydrothermal pretreatment. In this system, microalgae slurry directly flows through th ...
DOI:
10.1016/j.apenergy.2018.12.014

91. A solid-state chemical reduction approach to synthesize graphitic carbon nitride with tunable nitrogen defects for efficient visible-light photocatalytic hydrogen evolution

Author:
Yizeng Zhang; Junning Gao; Zhiwu Chen
Source:
Journal of colloid and interface science 2019 v.535 pp. 331-340
ISSN:
0021-9797
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; absorption; carbon nitride; chemical composition; chemical reduction; electron paramagnetic resonance spectroscopy; electrons; graphene; hydrogen; hydrogen production; irradiation; nitrogen; nuclear magnetic resonance spectroscopy; photocatalysis; photocatalysts; photons; stable isotopes; storage quality; temperature; wavelengths
Abstract:
... Graphitic carbon nitride with nitrogen defects (g-C3N4-x) is prepared by a facile and effective solid-state chemical reduction technique at mild temperature conditions. The cyano groups and nitrogen vacancies, as evidenced by electron paramagnetic resonance (EPR), X-ray photoelectron spectrometer (XPS), Fourier transform infrared spectra (FTIR) and Solid-state 13C MAS NMR spectra, are controllable ...
DOI:
10.1016/j.jcis.2018.10.012

92. A spatially varying charge model for regulating site-selective protein adsorption and cell behaviors

Author:
Kejia Zhang; Jun Xing; Junqi Chen; Zhengao Wang; Jinxia Zhai; Tiantian Yao; Guoxin Tan; Suijian Qi; Dafu Chen; Peng Yu; Chengyun Ning
Source:
Biomaterials science 2019 v.7 no.3 pp. 876-888
ISSN:
2047-4849
Subject:
adsorption; biocompatible materials; body fluids; cell adhesion; cell movement; irradiation; microscopy; models; phase transition; proteins; pseudopodia
Abstract:
... Implanted materials that enter the body first interact with proteins in body fluids, and cells then perceive and respond to the foreign implant through this layer of adsorbed proteins. Thus, spatially specific regulation of protein adsorption on an implant surface is pivotal for mediating subsequent cellular behaviors. Unlike the surface modulation strategy for traditional biomaterials, in this re ...
DOI:
10.1039/c8bm01158c

93. A supramolecular approach of modified polyoxometalate polymerization and visualization of a single polymer chain

Author:
Weiming Guan; Gengxin Wang; Jingbo Ding; Bao Li; Lixin Wu
Source:
Chemical communications 2019 v.55 no.72 pp. 10788-10791
ISSN:
1364-548X
Subject:
anions; anthracenes; gamma-cyclodextrin; irradiation; polymerization; polymers; transmission electron microscopy; ultraviolet radiation
Abstract:
... An anthracene modified Anderson–Evans polyoxometalate was polymerized via supramolecular inclusion and then covalent coupling with the support of γ-cyclodextrin (γ-CD) under UV light irradiation. The formed main chain polymers of the inorganic polyanions self-assembled into fibrous bundles and single-strand chains were visualized and characterized via TEM and other techniques. ...
DOI:
10.1039/c9cc05056f

94. A sustainable solution for removal of glutaraldehyde in saline water with visible light photocatalysis

Author:
Soklida Hong; Thunyalux Ratpukdi; Bunleu Sungthong; Jayaraman Sivaguru; Eakalak Khan
Source:
Chemosphere 2019 v.220 pp. 1083-1090
ISSN:
0045-6535
Subject:
biocides; bromides; dissolved organic carbon; glutaraldehyde; humic acids; irradiation; oils; pH; photocatalysis; photocatalysts; saline water; silver; silver chloride; sodium chloride; ultraviolet radiation
Abstract:
... Glutaraldehyde (GA) is the most common biocide used in unconventional oil and gas production. Photocatalytic degradation of GA in brine simulating oil and gas produced water using Ag/AgCl/BiOCl composite as a photocatalyst with visible light was investigated. Removal of GA at 0.1 mM in 200 g/L NaCl solution at pH 7 was 90% after 75 min irradiation using 5 g/L of the photocatalyst. The GA removal f ...
DOI:
10.1016/j.chemosphere.2018.12.216

95. A tumor-targeting Ru/polysaccharide/protein supramolecular assembly with high photodynamic therapy ability

Author:
Hong-Guang Fu; Yong Chen; Qilin Yu; Yu Liu
Source:
Chemical communications 2019 v.55 no.21 pp. 3148-3151
ISSN:
1364-548X
Subject:
active sites; beta-cyclodextrin; biocompatible materials; chemical reactions; irradiation; nanoparticles; neoplasm cells; photochemotherapy; ruthenium; toxicity; transferrin
Abstract:
... Supramolecular assembly with tumor-targeting properties or photodynamic therapy (PDT) ability has recently become a focus of interest in biomaterial field because of its high therapeutic efficacy against tumor cells. Herein, we reported a new type of targeted supramolecular nanoparticles for photodynamic therapy of tumor cells constructed using adamantane-functionalized transferrin protein (Ad-TRF ...
DOI:
10.1039/c8cc09964b

96. A turn-on fluorescence sensor for the highly selective detection of Al³⁺ based on diarylethene and its application on test strips

Author:
Junfei Lv; Yinglong Fu; Gang Liu; Congbin Fan; Shouzhi Pu
Source:
RSC advances 2019 v.9 no.18 pp. 10395-10404
ISSN:
2046-2069
Subject:
EDTA (chelating agent); aluminum; color; fluorescence; irradiation; mass spectrometry; methanol; stoichiometry; ultraviolet radiation
Abstract:
... A novel turn-on fluorescent sensor for Al³⁺ based on photochromic diarylethene with a 2-hydroxybenzhydrazide unit has been successfully designed and synthesized. The photochromic and fluorescent characteristics were studied methodically in methanol under irradiation using UV/vis light and induced by Al³⁺/EDTA. This fluorescent sensor was highly selective toward Al³⁺ with an obvious fluorescent col ...
DOI:
10.1039/c9ra00716d

97. A two-photon excited O2-evolving nanocomposite for efficient photodynamic therapy against hypoxic tumor

Author:
Run-Qing Li; Chi Zhang; Bo-Ru Xie; Wu-Yang Yu; Wen-Xiu Qiu; Han Cheng; Xian-Zheng Zhang
Source:
Biomaterials 2019 v.194 pp. 84-93
ISSN:
0142-9612
Subject:
carbon nitride; composite polymers; electrons; hypoxia; irradiation; metabolism; nanocomposites; neoplasms; oxygen; permeability; photochemotherapy; polyethylene glycol; ruthenium; singlet oxygen
Abstract:
... This paper reported on a two-photon excited nanocomposite FCRH to overcome tumor hypoxia for enhanced photodynamic therapy (PDT). Through modified by ruthenium (Ⅱ) complex (Ru(bpy)32+) and hyperbranched conjugated copolymer with poly (ethylene glycol) arms (HOP), the water-splitting mediated O2 generation can be triggered via two-photon irradiation from iron-doped carbon nitride (Fe-C3N4) for the ...
DOI:
10.1016/j.biomaterials.2018.12.017

98. A type I Bi₂S₃@ZnS core–shell structured photocatalyst for the selective photoelectrochemical sensing of Cu²⁺

Author:
Jiajia Xi; Hao Wang; Bihong Zhang; Xiaopeng Hu; Faqiong Zhao; Baizhao Zeng
Source:
Analytical methods 2019 v.11 no.19 pp. 2605-2610
ISSN:
1759-9679
Subject:
analytical methods; copper; detection limit; electric current; electrodes; electrostatic interactions; irradiation; light; photocatalysts; zinc sulfide
Abstract:
... A type I core/shell structured Bi₂S₃@ZnS photocatalyst was synthesized by an electrostatic interaction mechanism and used for the photoelectrochemical detection of Cu²⁺. The Bi₂S₃@ZnS composite showed excellent photoelectrochemical activity and stability due to the high photoelectrochemical activity of Bi₂S₃ and the anti-photocorrosion function of the ZnS shell. In addition, the ZnS shell also pro ...
DOI:
10.1039/c9ay00591a

99. A visible-light-irradiated electron donor-acceptor complex-promoted radical reaction system for the CH perfluoroalkylation of quinolin-4-ols

Author:
Yunze Li; Min Rao; Zhenwei Fan; Baoyi Nian; Yaofeng Yuan; Jiajia Cheng
Source:
Tetrahedron letters 2019 pp. -
ISSN:
0040-4039
Subject:
carbon-hydrogen bond activation; chemical reactions; chemical structure; green light; irradiation; organoiodine compounds; perfluorocarbons; photocatalysts
Abstract:
... An efficient method for visible-light-induced perfluoroalkylaion of quinolin-4-ol has been reported. In the presence of t-BuONa and perfluoroalkyl iodide, quinolin-4-ol underwent CH perfluoroalkylation under the irradiation of green light. Mechanistic studies demonstrated that visible-light promoted intermolecular charge transfer within the transient electron donor-acceptor complex in the absence ...
DOI:
10.1016/j.tetlet.2019.151046

100. A walk on the wild side: gut bacteria fed to mass-reared larvae of Queensland fruit fly [Bactrocera tryoni (Froggatt)] influence development

Author:
Lucas Alexander Shuttleworth; Mohammed Abul Monjur Khan; Terrence Osborne; Damian Collins; Mukesh Srivastava; Olivia Louise Reynolds
Source:
BMC biotechnology 2019 v.19 no.Supplement 2 pp. 95
ISSN:
1472-6750
Subject:
Asaia; Bactrocera tryoni; Enterobacter; Lactobacillus; Leuconostoc; bacteria; cost effectiveness; diet; eclosion; eggs; females; flight; horticulture; insect larvae; insect pests; intestinal microorganisms; irradiation; larval development; males; mass rearing; midgut; plate count; probiotics; pupae; pupation; sex ratio; sterile insect technique; transmission electron microscopy
Abstract:
... BACKGROUND: The Queensland fruit fly, Bactrocera tryoni (Froggatt) (Diptera, Tephritidae) is the most significant insect pest of Australian horticulture. Bactrocera tryoni is controlled using a range of tools including the Sterile Insect Technique (SIT). Mass-rearing and irradiation of pupae in SIT can reduce the fitness and quality of the released sterile insects. Studies have also showed reduced ...
DOI:
10.1186/s12896-019-0579-6
PubMed:
31847841
PubMed Central:
PMC6918714