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You searched for: Journal RSC advances Remove constraint Journal: RSC advances Publication Year 2019 Remove constraint Publication Year: 2019 Source 2019 v.9 no.52 Remove constraint Source: 2019 v.9 no.52
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1. Identification of proteins in housefly (Musca domestica) larvae powder by LC-MS/MS and their potential medical relevance

Author:
Jiao, Mengya; Chen, Lei; He, Yinru; Wu, Lirong; Mei, Hanfang
Source:
RSC advances 2019 v.9 no.52 pp. 30545-30555
ISSN:
2046-2069
Subject:
Alzheimer disease; Musca domestica; amino acid sequences; antimicrobial peptides; antioxidants; biomedical research; enzymatic hydrolysis; genetically modified organisms; insect larvae; insect proteins; liquid chromatography; mice; powders; protective effect; tandem mass spectrometry
Abstract:
... Housefly larvae (HL) powder was used to cure wounds centuries ago for its good nutritional and pharmacological values. At present, most of the medical studies are about the crude extracts of HL, while the specific pharmacological material basis is still unclear. We ground third-instar Musca domestica larvae into a powder, degreasing and preparing the protein extract. The protein extract was subjec ...
DOI:
10.1039/c9ra05854k

2. Recent progress in development of 2,3-diaminomaleonitrile (DAMN) based chemosensors for sensing of ionic and reactive oxygen species

Author:
Aruna,; Rani, Bhawna; Swami, Suman; Agarwala, Arunava; Behera, Debasis; Shrivastava, Rahul
Source:
RSC advances 2019 v.9 no.52 pp. 30599-30614
ISSN:
2046-2069
Subject:
reactive oxygen species
Abstract:
... 2,3-Diaminomaleonitrile (DAMN) has proved to be a valuable organic π-conjugated molecule having many applications in the area of chemosensors for sensing of ionic and neutral species because of its ability to act as a building block for well-defined molecular architectures and scaffolds for preorganised arrays of functionality. In this article, we discussed the utilization of 2,3-diaminomaleonitri ...
DOI:
10.1039/c9ra05298d

3. Concise synthesis of N-thiomethyl benzoimidazoles through base-promoted sequential multicomponent assembly

Author:
Tian, Jingxin; Yuan, Shanshan; Xiao, Fuhong; Huang, Huawen; Deng, Guo-Jun
Source:
RSC advances 2019 v.9 no.52 pp. 30570-30574
ISSN:
2046-2069
Subject:
aldehydes; benzimidazoles; carbon; chemical bonding; moieties
Abstract:
... An efficient method for the synthesis of N-thiomethyl benzimidazoles from o-phenylenediamines, thiophenols, and aldehydes via C–N/C–S bond formation under metal-free conditions is described. A broad range of functional groups attached to the substrates were well tolerated in this reaction system. Stable and low-toxicity paraformaldehyde was used as the carbon source. ...
DOI:
10.1039/c9ra06144d

4. Graphene-based plasmonic nanocomposites for highly enhanced solar-driven photocatalytic activities

Author:
Adam, Rania E.; Chalangar, Ebrahim; Pirhashemi, Mahsa; Pozina, Galia; Liu, Xianjie; Palisaitis, Justinas; Pettersson, Håkan; Willander, Magnus; Nur, Omer
Source:
RSC advances 2019 v.9 no.52 pp. 30585-30598
ISSN:
2046-2069
Subject:
dyes; environmental sustainability; graphene; hydroxyl radicals; models; nanocomposites; nanosilver; photocatalysis; photocatalysts; photolysis; pollutants; pollution control; silver; solar radiation; surface plasmon resonance; ultrasonic treatment; zinc oxide
Abstract:
... High-efficiency photocatalysts are crucial for the removal of organic pollutants and environmental sustainability. In the present work, we report on a new low-temperature hydrothermal chemical method, assisted by ultrasonication, to synthesize disruptive plasmonic ZnO/graphene/Ag/AgI nanocomposites for solar-driven photocatalysis. The plasmonic nanocomposites were investigated by a wide range of c ...
DOI:
10.1039/c9ra06273d

5. Highly crystalline CsPbI₂Br films for efficient perovskite solar cells via compositional engineering

Author:
He, Fang; Xu, Wenzhan; Zhang, Meng; Zhang, Xuan; Ding, Baofu; Wei, Guodan; Kang, Feiyu
Source:
RSC advances 2019 v.9 no.52 pp. 30534-30540
ISSN:
2046-2069
Subject:
annealing; chlorobenzene; crystal structure; engineering; films (materials); gold; solar cells; solvents; thermal stability; tin dioxide
Abstract:
... All-inorganic CsPbI₂Br shows high thermal stability for promising application in perovskite solar cells (PSCs). The performance of PSCs is significantly affected by their morphology and crystallinity induced by compositional ratio, solvent/anti-solvent engineering and post thermal annealing. In this study, the compositional ratio effect of two precursors, PbI₂ and CsBr, on the power conversion eff ...
DOI:
10.1039/c9ra06363c

6. Iron phosphide nanoparticles as a pH-responsive T₁ contrast agent for magnetic resonance tumor imaging

Author:
Qiu, Yuan; Lin, Weiwen; Wang, Lili; Liu, Rui; Xie, Jiangao; Chen, Xin; Yang, Feifei; Huang, Guoming; Yang, Huanghao
Source:
RSC advances 2019 v.9 no.52 pp. 30581-30584
ISSN:
2046-2069
Subject:
biocompatibility; image analysis; magnetism; nanoparticles; neoplasms; phosphides
Abstract:
... In this work, the potential of FeP nanoparticles as a pH-responsive T₁ contrast agent was investigated. The FeP nanoparticles have good biocompatibility and can significantly amplify T₁ magnetic resonance signals in response to the acidic microenvironment of solid tumors, holding great promise in serving as an acid-activatable T₁ contrast agent for tumor imaging. ...
DOI:
10.1039/c9ra06886d

7. Palygorskite-anchored Pd complexes catalyze the coupling reactions of pyrimidin-2-yl sulfonates

Author:
Zhan, Huiying; Zhou, Rongrong; Chen, Xudong; Yang, Quanlu; Jiang, Hongyan; Su, Qiong; Wang, Yanbin; Li, Jia; Wu, Lan; Wu, Shang
Source:
RSC advances 2019 v.9 no.52 pp. 30526-30533
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; clay; energy-dispersive X-ray analysis; palladium; palygorskite; scanning electron microscopy; sulfonates
Abstract:
... In this work, an anchored Pd complex (PGS–APTES–Pd(OAc)₂) was prepared via simple and green steps from the natural clay mineral palygorskite and was well characterized by XPS, XRD, IR, SEM, and EDX. This complex was further utilized as a fine catalyst for the C–C/C–N coupling reactions of pyrimidin-2-yl sulfonates. Subsequently, the cyclic utilization test indicated the high stability and sustaina ...
DOI:
10.1039/c9ra06035a

8. Resistive switching behavior in α-In₂Se₃ nanoflakes modulated by ferroelectric polarization and interface defects

Author:
Hou, Pengfei; Xing, Siwei; Liu, Xin; Chen, Cheng; Zhong, Xiangli; Wang, Jinbin; Ouyang, Xiaoping
Source:
RSC advances 2019 v.9 no.52 pp. 30565-30569
ISSN:
2046-2069
Subject:
electrodes; electronics; energy use and consumption; nanomaterials; oxygen; selenides; silica; transistors; van der Waals forces
Abstract:
... Resistive switching devices based on ferroelectric two-dimensional (2D) van der Waals (vdW) nanomaterials may display simple structures, high density, high speed, and low power consumption, and can be used in flexible electronics and highly integrated devices. However, only a few studies about the in-plane (IP) resistive switching behavior of ferroelectric 2D vdW nanomaterials have been reported b ...
DOI:
10.1039/c9ra06566k

9. Rod-like anhydrous V₂O₅ assembled by tiny nanosheets as a high-performance cathode material for aqueous zinc-ion batteries

Author:
Zhou, Weijun; Chen, Jizhang; Chen, Minfeng; Xu, Xinwu; Tian, Qinghua; Xu, Junling; Wong, Ching-Ping
Source:
RSC advances 2019 v.9 no.52 pp. 30556-30564
ISSN:
2046-2069
Subject:
batteries; cathodes; coordination polymers; diffusivity; electrochemistry; energy; nanosheets; surface area; zinc
Abstract:
... Aqueous zinc-ion batteries offer a low-cost and high-safety alternative for next-generation electrochemical energy storage, whereas suitable cathode materials remain to be explored. Herein, rod-like anhydrous V₂O₅ derived from a vanadium-based metal–organic framework is investigated. Interestingly, this material is assembled by tiny nanosheets with a large surface area of 218 m² g⁻¹ and high pore ...
DOI:
10.1039/c9ra06143f

10. Synthesis and characterization of rigid [2.2]paracyclophane–porphyrin conjugates as scaffolds for fixed-distance bimetallic complexes

Author:
Knoll, Daniel M.; Wiesner, Thomas B.; Marschner, Stefan M.; Hassan, Zahid; Weis, Patrick; Kappes, Manfred; Nieger, Martin; Bräse, Stefan
Source:
RSC advances 2019 v.9 no.52 pp. 30541-30544
ISSN:
2046-2069
Subject:
copper; cross-coupling reactions; moieties; porphyrins; zinc
Abstract:
... This work presents a new approach to prepare mono- and disubstituted linear rigid bimetallic [2.2]paracyclophane–porphyrin conjugates via palladium-mediated Stille cross-coupling reaction. The metalated porphyrin moiety can be varied allowing convenient access to modular metal–metal fixed-distance Cu/Zn complexes. ...
DOI:
10.1039/c9ra07055a

11. Synthesis of porous carbon via a waste tire leavening strategy for adsorptive desulfurization

Author:
Chao, Yanhong; Ju, Haitao; Luo, Jing; Jin, Yan; Wang, Chao; Xiong, Jun; Wu, Peiwen; Ji, Haiyan; Zhu, Wenshuai
Source:
RSC advances 2019 v.9 no.52 pp. 30575-30580
ISSN:
2046-2069
Subject:
adsorbents; adsorption; carbon; desulfurization; fuels; moieties; raw materials; sulfur; surface area; thiols; tires; wastes
Abstract:
... Adsorptive desulfurization is an effective technology for removing harmful sulfur under mild conditions. Carbon materials have many advantages and are often used in adsorption desulfurization research, but until now have been synthesized using complicated methods and have shown limited adsorption capacity. Using an NaHCO₃-assisted leavening method, waste tires were in the current work used as raw ...
DOI:
10.1039/c9ra06195a

12. The effect of proton irradiation on the properties of a graphene oxide paper

Author:
Zhen, Xiaojuan; Huang, Yifan; Yang, Shengsheng; Feng, Zhanzu; Ba, Dedong; Zhuang, Jianhong; Wang, Yi; Qin, Xiaogang
Source:
RSC advances 2019 v.9 no.52 pp. 30519-30525
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; carbon; chemical composition; electrical properties; graphene oxide; irradiation; moieties; oxygen; paper; thermal conductivity
Abstract:
... A graphene oxide paper (GOP) was irradiated with 500 keV proton for total fluence of 2 × 10¹³ cm⁻² to 2 × 10¹⁵ cm⁻² in a ground-based irradiation simulator. The spacing of layer, surface chemical composition, structural defects, thermal conductivity and electrical property of the GOP before and after irradiation was measured. The results indicated that the spacing of layer decreased after irradiat ...
DOI:
10.1039/c9ra05389a

13. Acetylene hydrochlorination over boron-doped Pd/HY zeolite catalysts

Author:
Wang, Lu; Lian, Lizhen; Yan, Haijun; Wang, Feng; Wang, Jide; Yang, Chao; Ma, Lida
Source:
RSC advances 2019 v.9 no.52 pp. 30335-30339
ISSN:
2046-2069
Subject:
acetylene; boron; carbon; catalysts; catalytic activity; palladium; zeolites
Abstract:
... A novel boron-doped Pd/HY zeolite catalyst for acetylene hydrochlorination was prepared and exhibited an outstanding catalytic performance (the acetylene conversion was maintained at >95% for about 30 h). The boron species can stabilize catalytically active Pd²⁺ species and weaken carbon deposition and Pd²⁺ reduction during the reaction, thus improving the catalytic stability. ...
DOI:
10.1039/c9ra05576b

14. A gold nanoparticle strip for simultaneously evaluating FMDV immunized antibody level and discriminating FMDV vaccinated animals from infected animals

Author:
Yang, Suzhen; Sun, Yaning; Yang, Jifei; Liu, Yunchao; Feng, Hua; Zhang, Gaiping
Source:
RSC advances 2019 v.9 no.52 pp. 30164-30170
ISSN:
2046-2069
Subject:
antibodies; enzyme-linked immunosorbent assay; epitopes; goats; immunoglobulin G; nanogold; staphylococcal protein A; structural proteins; viral nonstructural proteins; viruses
Abstract:
... A gold nanoparticle strip was developed for rapidly evaluating FMDV type O antibody level and simultaneously discriminating FMDV vaccinated animals from infected animals. The strip was established depending on the colloidal gold nanoparticle labeling technique. Staphylococcal protein A colloidal gold nanoparticles were used as a probe. The epitope antigens of FMDV structural proteins and nonstruct ...
DOI:
10.1039/c9ra04810c

15. A low-temperature technique and new strategy for the dual growth of carbon nanotubes and nanorods through the confinement of explosive materials inside a porous structure

Author:
Saber, Osama; Aljaafari, Abdullah; Alshoaibi, Adil; Osama, Aya
Source:
RSC advances 2019 v.9 no.52 pp. 30509-30518
ISSN:
2046-2069
Subject:
X-ray diffraction; aluminum; aluminum oxide; ammonium nitrate; boehmite; carbon; carbon nanotubes; crystal structure; ethanol; methanol; nanocomposites; nanoparticles; nanorods; temperature; thermal analysis; transmission electron microscopy
Abstract:
... In this paper, we report a low temperature technique and new strategy for the dual growth of carbon nanotubes (CNTs) and nanorods (CNRs) with alumina nanoparticles to avoid the high temperature required for CNT and CNR production and their assembling behaviour. In this trend, X-ray diffraction and thermal analysis indicated that the porous system of aluminium species was prepared and saturated wit ...
DOI:
10.1039/c9ra04532e

16. Aniline trimer-including carboxymethylated β-cyclodextrin as an efficient corrosion inhibitor for Q235 carbon steel in 1 M HCl solution

Author:
Yang, Feng; Liu, Yu; Liu, Tong; Liu, Shuan; Zhao, Haichao
Source:
RSC advances 2019 v.9 no.52 pp. 30249-30258
ISSN:
2046-2069
Subject:
absorption; adsorption; aniline; beta-cyclodextrin; carbon; confocal laser scanning microscopy; corrosion; dielectric spectroscopy; hydrochloric acid; models; scanning electron microscopy; steel; water solubility
Abstract:
... In this work, a water-soluble host–guest complex containing carboxymethylated beta-cyclodextrin (CM-β-CD) and an aniline trimer (AT) was synthesized. The application of AT–CM-β-CD as an inhibitor for alleviating the corrosion of Q235 carbon steel in 1 M HCl solution was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Results showed that the inhibition ...
DOI:
10.1039/c9ra04047a

17. An insight into the intermolecular vibrational modes of dicationic ionic liquids through far-infrared spectroscopy and DFT calculations

Author:
Guglielmero, Luca; Guazzelli, Lorenzo; Toncelli, Alessandra; Chiappe, Cinzia; Tredicucci, Alessandro; Pomelli, Christian Silvio
Source:
RSC advances 2019 v.9 no.52 pp. 30269-30276
ISSN:
2046-2069
Subject:
cations; chemical interactions; energy; far-infrared spectroscopy; ionic liquids; models; physicochemical properties
Abstract:
... Dicationic ionic liquids (DILs) are a subclass of the ionic liquid (IL) family and are characterized by two cationic head groups linked by means of a spacer. While DILs are increasingly attracting interest due to their peculiar physico-chemical properties, there is still a lack of understanding of their intermolecular interactions. Herein, we report our investigations on the intermolecular vibrati ...
DOI:
10.1039/c9ra05735h

18. A novel forced separation method for the preparation of paraffin with excellent phase changes

Author:
Bai, Gang; Fan, Qinzhen; Sun, Jianfeng; Cheng, Lihua; Song, Xi-Ming
Source:
RSC advances 2019 v.9 no.52 pp. 30453-30460
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; carbon; differential scanning calorimetry; energy; enthalpy; gas chromatography; lipid content; liquids; melting point; phase transition; raw materials; temperature
Abstract:
... A novel forced separation method based on driving force vacuum sweating was used to prepare high melting point paraffin with high phase-change enthalpies. The effects of the vacuum pressure and final separation temperature on the forced separation of the paraffin components were investigated. The research results showed that the optimal vacuum pressure for forced separation was 80.0 kPa. The perfo ...
DOI:
10.1039/c9ra04722k

19. A single-phase white light emitting phosphor Ba₃Y(PO₄)₃:Ce³⁺/Tb³⁺/Mn²⁺: luminescence, energy transfer and thermal stability

Author:
Chen, Yun; Ding, Wenge; Li, Panlai; Li, Xue; Bao, Qi; Liu, Jinjin; Qiu, Keliang; Meng, Xiangyu; Yang, Zhiping; Wang, Zhijun
Source:
RSC advances 2019 v.9 no.52 pp. 30406-30418
ISSN:
2046-2069
Subject:
cerium; color; energy transfer; fluorescence; light emitting diodes; manganese; temperature; terbium; thermal stability; white light
Abstract:
... A series of Ce³⁺/Tb³⁺, Tb³⁺/Mn²⁺ and Ce³⁺/Tb³⁺/Mn²⁺ doped Ba₃Y(PO₄)₃ were synthesized by the high temperature solid state method. Phase formation, energy transfer, luminescence properties and thermal quenching properties of phosphors were analyzed in detail. For the co-doped samples, the energy transfer from Ce³⁺ to Tb³⁺ and Tb³⁺ to Mn²⁺ was proved by analyzing the spectra and fluorescence lifetim ...
DOI:
10.1039/c9ra05995d

20. Assembly with copper(ii) ions and D–π–A molecules on a graphene surface for ultra-fast acetic acid sensing at room temperature

Author:
Gong, Yelei; Li, Hao; Pei, Wenle; Fan, Jincheng; Umar, Ahmad; Al-Assiri, M. S.; Wang, Yao; Frans de Rooij, Nicolaas; Zhou, Guofu
Source:
RSC advances 2019 v.9 no.52 pp. 30432-30438
ISSN:
2046-2069
Subject:
acetic acid; active sites; adsorption; ambient temperature; cadmium; cobalt; copper; graphene; iron; manganese; metal ions; nanosheets; nickel
Abstract:
... In this study, a graphene-based composite 4HQ-rGO/Cu²⁺ was prepared via the supramolecular assembly of graphene nanosheets with 4-hydroxyquinoline (4HQ) and copper(ii) ions. The as-prepared supramolecular assembly exhibited an excellent and enhanced sensing performance towards acetic acid at room-temperature, which was due to the fact that the D–π–A molecules, i.e. 4HQ, were able to accelerate the ...
DOI:
10.1039/c9ra05706d