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1. Gold nanoparticles grafted with chemically incompatible ligands

Author:
Wolska, Joanna M.; Błażejewska, Aleksandra; Tupikowska, Martyna; Pociecha, Damian; Górecka, Ewa
Source:
RSC advances 2021 v.11 no.16 pp. 9568-9571
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; ligands; nanogold;     Show all 3 Subjects
Abstract:
... Janus-type structures were obtained from gold nanoparticles grafted with two types of chemically incompatible mesogenic ligands with a strong tendency for nano-segregation. A lamellar arrangement, in which metallic nanoparticle-rich sublayers are separated by organic ligand-rich sublayers of various composition, was formed due to the ligand segregation process. The layers could be easily aligned b ...
DOI:
10.1039/d1ra00547b

2. Exploiting deep learning for predictable carbon dot design

Author:
Wang, Xiao-Yuan; Chen, Bin-Bin; Zhang, Jie; Zhou, Ze-Rui; Lv, Jian; Geng, Xiao-Peng; Qian, Ruo-Can
Source:
Chemical communications 2021 v.57 no.4 pp. 532-535
ISSN:
1364-548X
Subject:
ultraviolet radiation,   etc   ; color; fluorescence; models;     Show all 4 Subjects
Abstract:
... In this study, we developed a deep convolution neural network (DCNN) model for predicting the optical properties of carbon dots (CDs), including spectral properties and fluorescence color under ultraviolet irradiation. These results demonstrate the powerful potential of DCNN for guiding the synthesis of CDs. ...
DOI:
10.1039/d0cc07882d

3. Global identification of the cellular targets for a multi-molecule system by a photochemically-induced coupling reaction

Author:
Zhao, Meimei; Yao, Lu; Zhang, Xiaowen; Wang, Lichao; Tu, Pengfei; Zeng, Kewu
Source:
Chemical communications 2021 v.57 no.28 pp. 3449-3452
ISSN:
1364-548X
Subject:
ultraviolet radiation,   etc   ; crosslinking; medicinal plants; plant extracts;     Show all 4 Subjects
Abstract:
... Current target identification strategies mainly focus on single compounds. However, no practical experimental methodologies have been developed for multi-molecule systems. Herein, we established a cellular target identification technology for a multi-molecule system by preparing 4,4′-dihydroxybenzophenone (DHBP)-bound Fe₃O₄ nanoparticles (NPs) with photochemically induced crosslinking capacity. DH ...
DOI:
10.1039/d1cc00392e

4. Cathode/gel polymer electrolyte integration design based on continuous composition and preparation technique for high performance lithium ion batteries

Author:
Yu, Feng; Zhao, Lingzhu; Zhang, Hongbing; Sun, Zhipeng; Li, Yuli; Hu, Qing; Chen, Yong
Source:
RSC advances 2021 v.11 no.7 pp. 3854-3862
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; cathodes; gelatin; liquids; lithium; polymers;     Show all 6 Subjects
Abstract:
... Gel polymer electrolytes (GPEs) combine the high ionic conductivity of liquid electrolytes and good safety assurance of solid electrolytes. However, the poor interfacial contact between electrode materials and electrolyte is still a big obstacle to the high performance of solid-state batteries. Herein, an integrated cathode/GPE based on continuous composition and preparation technic is obtained by ...
DOI:
10.1039/d0ra10743c

5. Role of specific distorted metal complexes in exciton self-trapping for hybrid metal halides

Author:
Gautier, Romain; Clérac, Rodolphe; Paris, Michael; Massuyeau, Florian
Source:
Chemical communications 2020 v.56 no.70 pp. 10139-10142
ISSN:
1364-548X
Subject:
ultraviolet radiation,   etc   ; cadmium; hybrids;     Show all 3 Subjects
Abstract:
... A methodology enabling the discovery of hybrid metal halide phosphors through the selection of structural networks, which exhibit a specific distorted environment of the metal ions associated with the self-trapping of excitons, is proposed. This approach is demonstrated with the synthesis of an efficient near-UV emitting hybrid cadmium halide phosphor. ...
DOI:
10.1039/d0cc04778c

6. Synthesis and [2+2]-photodimerisation of monothiomaleimide functionalised linear and brush-like polymers

Author:
Aljuaid, Mohammed; Liarou, Evelina; Town, James; Baker, James R.; Haddleton, David M.; Wilson, Paul
Source:
Chemical communications 2020 v.56 no.66 pp. 9545-9548
ISSN:
1364-548X
Subject:
ultraviolet radiation,   etc   ; acetonitrile; irradiation;     Show all 3 Subjects
Abstract:
... [2+2]-Photodimerisation of monothiomaleimides has been demonstrated on functionalised linear and brush-like polymers. In water/acetonitrile (95 : 5) mixtures the rate of reaction is accelerated significantly by irradiation of the thiomaleimide end group (λₘₐₓ = 350 nm) with UV light, reaching full conversion within 10 minutes. ...
DOI:
10.1039/d0cc04067c

7. Formation and control of disinfection by-products from iodinated contrast media attenuation through sequential treatment processes of ozone-low pressure ultraviolet light followed by chlorination

Author:
Lopez-Prieto, Israel J.; Park, Minkyu; AzadiAghdam, Mojtaba; Pan, Hongrui; Jones, Sara L.; Snyder, Shane A.
Source:
Chemosphere 2021 v.278 pp. 130394
ISSN:
0045-6535
Subject:
ultraviolet radiation,   etc   ; chlorination; chlorine; disinfection; iodine; oxidation; ozone;     Show all 7 Subjects
Abstract:
... Different groups of disinfection by-products (DBPs) were studied through the degradation of iopamidol by the sequential oxidation process of ozone-low pressure ultraviolet light (O₃-LPUV) followed by chlorination. This paper investigates the attenuation of iopamidol under this sequential treatment and the effect of chlorine contact time (30 min versus 3 days) to control the formation potential of ...
DOI:
10.1016/j.chemosphere.2021.130394

8. Ultrafast generation of highly crystalline graphene quantum dots from graphite paper via laser writing

Author:
Zhang, Aitang; Chen, Tao; Song, Shangwei; Yang, Wenrong; Justin Gooding, J.; Liu, Jingquan
Source:
Journal of colloid and interface science 2021 v.594 pp. 460-465
ISSN:
0021-9797
Subject:
ultraviolet radiation,   etc   ; color; crystallization; fluorescence; gasification; graphene; paper;     Show all 7 Subjects
Abstract:
... Graphene quantum dots (GQDs) are attractive fluorescent nanoparticles that have wide applicability, are inexpensive, nontoxic, photostable, water-dispersible, biocompatible and environmental-friendly. Various strategies for the synthesis of GQDs have been reported. However, simple and efficient methods of producing GQDs with control over the size of the GQDs, and hence their optical properties, ar ...
DOI:
10.1016/j.jcis.2021.03.044

9. Narrow-band red emitting oxonitridosilicate phosphor La₄₋ₓSr₂₊ₓSi₅N₁₂₋ₓOₓ:Pr³⁺ (x ≈ 1.69)

Author:
Zheng, Hong-Wei; Wang, Xiao-Ming; Wei, Heng-Wei; Zheng, Yu; Yin, Cong-Ling; Yang, Zu-Pei; Jiao, Huan
Source:
Chemical communications 2021 v.57 no.31 pp. 3761-3764
ISSN:
1364-548X
Subject:
ultraviolet radiation,   etc   ; X-ray diffraction; blue light; crystallization; geometry; temperature;     Show all 6 Subjects
Abstract:
... The new oxonitridosilicates Ln₄₋ₓSr₂₊ₓSi₅N₁₂₋ₓOₓ (Ln = La, Ce) were synthesized by high temperature solid-state reactions. The crystal structures were solved and refined from both single-crystal and powder X-ray diffraction data. These oxonitridosilicate compounds crystallize in the monoclinic space group P2₁/n (no. 14) and exhibit a double-layer structure made up of corner-sharing Si(O/N)₄ tetrah ...
DOI:
10.1039/d1cc00893e

10. Tailoring and visualising pore openings in gelatin-based hydrogel foams

Author:
Dehli, Friederike; Southan, Alexander; Drenckhan, Wiebke; Stubenrauch, Cosima
Source:
Journal of colloid and interface science 2021 v.588 pp. 326-335
ISSN:
0021-9797
Subject:
ultraviolet radiation,   etc   ; fluorescence; foams; hydrogels; liquids; microfluidic technology;     Show all 6 Subjects
Abstract:
... While tailoring the pore diameters in hydrogel foams has been demonstrated in numerous studies, fine control over the diameters of the pore openings is still a challenge. We hypothesise that this can be achieved by controlling the size of the thin films which separate the bubbles in the liquid foam template. If this is the case, systematic changes of the template’s gas fraction ϕ (the higher ϕ, th ...
DOI:
10.1016/j.jcis.2020.12.064

11. A ratiometric fluorescent probe for the detection of β-galactosidase and its application

Author:
Li, Yanan; Deng, Bing; Chen, Haitao; Yang, Shaoxiang; Sun, Baoguo
Source:
RSC advances 2021 v.11 no.22 pp. 13341-13347
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; coumarin; detection limit; fluorescent dyes; fruits; light intensity;     Show all 6 Subjects
Abstract:
... Herein, a coumarin fluorescent probe (Probe 1) was developed for the ratiometric detection of β-galactosidase (β-gal) activity. The detection range was 0–0.1 U mL⁻¹ and 0.2–0.8 U mL⁻¹, and the limit of detection (LOD) was 0.0054 U mL⁻¹. Moreover, the luminous intensity of Probe 1 increased gradually with increase in β-gal activity. It could be observed under 254 nm UV irradiation by the naked eye. ...
DOI:
10.1039/d1ra00739d

12. The optical shielding performances and mechanisms of green flame-retardant two-component matte films under various application conditions

Author:
Yin, Xuan; Luo, Yunjun
Source:
RSC advances 2021 v.11 no.21 pp. 12696-12702
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; pH; polyurethanes; storage time; temperature; thermal degradation; transmittance;     Show all 7 Subjects
Abstract:
... Herein, we meticulously investigated the optical shielding performances and mechanisms of green flame-retardant two-component waterborne polyurethane matte films based on a previous study. The relevant performances were evaluated by changing various environmental factors including nanoparticle content, pH, temperature and storage-time. Specifically, upon combination with TiO₂, the ultraviolet-ligh ...
DOI:
10.1039/d1ra01266e

13. Hybrid MnFe-LDO–biochar nanopowders for degradation of metronidazole via UV-light-driven photocatalysis: Characterization and mechanism studies

Author:
Azalok, Khawla Abdulmutalib; Oladipo, Akeem Adeyemi; Gazi, Mustafa
Source:
Chemosphere 2021 v.268 pp. 128844
ISSN:
0045-6535
Subject:
ultraviolet radiation,   etc   ; catalysts; electric current; energy; magnetic materials; metronidazole; photocatalysis;     Show all 7 Subjects
Abstract:
... A cost-competitive MnFe-LDO–biochar hybrid catalyst was successfully synthesized via a simple yet efficient technique for the decomposition of metronidazole (MZ). MnFe-LDO–biochar was characterized by various techniques and the results revealed that it has a bandgap of 2.85 eV, high photocurrent response of 3.8 μA cm⁻² and can be separated rapidly from the bulk solution by an external magnet due t ...
DOI:
10.1016/j.chemosphere.2020.128844

14. The characterization of tocols in different plants parts of six Japanese rice cultivars relating to their UVB-sensitivity

Author:
Nguyen Huynh Phuong, Uyen; Pham Thi Phuong, Thao; Imamura, Kiyoshi; Kitaya, Yoshiaki; Hidema, Jun; Furuta, Masakazu; Yasuaki, Maeda
Source:
Plant physiology and biochemistry 2021 v.161 pp. 48-53
ISSN:
0981-9428
Subject:
ultraviolet radiation,   etc   ; cultivars; photosensitivity; phytochemicals; plant physiology; rice; tocotrienols;     Show all 7 Subjects
Abstract:
... There has been significant interest in the photosensitivity, or photo-resistance, of Japanese rice cultivars, which synthesize tocols (Vitamin E), a class of phytochemicals including tocol derivatives tocopherol (T) and tocotrienol (T3). In the present study, the distribution of tocols in the leaves, seeds, stems, and roots of six Japanese rice cultivars was investigated. The relationship between ...
DOI:
10.1016/j.plaphy.2021.01.045

15. Adsorption and photocatalytic degradation of gas-phase UDMH under simulated sunlight by AgBr/TiO₂/rGA

Author:
Ruomeng, Hou; Ying, Jia; Xiaomeng, Lv; Yuanzheng, Huang; Keke, Shen
Source:
RSC advances 2021 v.11 no.21 pp. 12583-12594
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; adsorption; air; graphene; lighting; photocatalysis; silver; temperature; toxicity;     Show all 9 Subjects
Abstract:
... The degradation of UDMH has long been a concern for its harmful effects on humans and the environment. The current research on gas-phase UDMH treatment is limited and mainly focuses on ultraviolet light and high temperature environments, however the highly toxic substance NDMA is easily produced. In order to investigate the possibility of UDMH degradation in sunlight, AgBr/TiO₂/rGA composites were ...
DOI:
10.1039/d1ra01325d

16. Preparation of superhydrophobic nylon-56/cotton-interwoven fabric with dopamine-assisted use of thiol–ene click chemistry

Author:
Wang, Baoliang; Gao, Chengyong; Huang, Yiting; Xu, Zhenzhen; Zhang, Yanbo; Yang, Qianxue; Xing, Tieling; Chen, Guoqiang
Source:
RSC advances 2021 v.11 no.18 pp. 10699-10709
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; contact angle; dopamine; fabrics; hydrophobicity; nylon; sustainable technology;     Show all 7 Subjects
Abstract:
... With the help of dopamine, we constructed a hydroxyl-rich secondary reaction platform on a surface formed by interwoven nylon 56 and cotton fibres. Octadecyl mercaptan and vinyl trimethoxysilane (VTMS) are used for the click coupling preparation of superhydrophobic reagents, which are grafted onto polydopamine aggregates and successfully used to prepare superhydrophobic nylon 56/cotton-interwoven ...
DOI:
10.1039/d1ra00410g

17. Conductive nanosheets produced by UV irradiation of a Ag nanoparticle monolayer at the air–water interface

Author:
Kuroiwa, Masashi; Nishimura, Tatsuya; Matsukawa, Mizuki; Imura, Yoshiro; Wang, Ke-Hsuan; Kawai, Takeshi
Source:
RSC advances 2021 v.11 no.16 pp. 9693-9697
ISSN:
2046-2069
Subject:
ultraviolet radiation,   etc   ; liquid-air interface; nanogold; nanosheets; nanosilver; solubilization; transmittance;     Show all 7 Subjects
Abstract:
... In a previous study, we demonstrated that conductive Au nanosheets can be prepared by UV irradiation of an Au nanoparticle monolayer spreading on water. In this study, we applied this UV irradiation technique to inexpensive Ag nanoparticles (NPs) to expand their versatility. UV irradiation of Ag NPs on water resulted in the formation of large Ag NPs and was ineffective for preparing conductive Ag ...
DOI:
10.1039/d1ra00454a

18. Obtainment, selection and characterization of a mutant strain of Kluyveromyces marxianus that displays improved production of 2‐phenylethanol and enhanced DAHP synthase activity

Author:
de Lima, L.A.; Ventorim, R.Z.; Bianchini, I.A.; de Queiroz, M.V.; Fietto, L.G.; da Silveira, W.B.
Source:
Journal of applied microbiology 2021 v.130 no.3 pp. 878-890
ISSN:
1364-5072
Subject:
ultraviolet radiation,   etc   ; ; Kluyveromyces marxianus; culture media; mutants; phenylethyl alcohol; yeasts;     Show all 7 Subjects
Abstract:
... AIMS: Yeasts produce 2‐phenylethanol (2‐PE) from sugars via de novo synthesis; however, its synthesis is limited due to feedback inhibition on the isofunctional 3‐deoxy‐d‐arabino‐heptulosonate‐7‐phosphate (DAHP) synthases (Aro3p and Aro4p). This work aimed to select Kluyveromyces marxianus mutant strains with improved capacity to produce 2‐PE from sugars. METHODS AND RESULTS: Kluyveromyces marxian ...
DOI:
10.1111/jam.14793

19. First Description of a Temperate Bacteriophage (vB_FhiM_KIRK) of Francisella hispaniensis Strain 3523

Author:
Köppen, Kristin; Prensa, Grisna I.; Rydzewski, Kerstin; Tlapák, Hana; Holland, Gudrun; Heuner, Klaus
Source:
Viruses 2021 v.13 no.2
ISSN:
1999-4915
Subject:
ultraviolet radiation,   etc   ; DNA; Francisella; Myoviridae; bacteriophages; genome; phylogeny; viral morphology;     Show all 8 Subjects
Abstract:
... Here we present the characterization of a Francisella bacteriophage (vB_FhiM_KIRK) including the morphology, the genome sequence and the induction of the prophage. The prophage sequence (FhaGI-1) has previously been identified in F. hispaniensis strain 3523. UV radiation induced the prophage to assemble phage particles consisting of an icosahedral head (~52 nm in diameter), a tail of up to 97 nm i ...
DOI:
10.3390/v13020327

20. Construction of In2O3/ZnO yolk-shell nanofibers for room-temperature NO2 detection under UV illumination

Author:
Han, Chaohan; Li, Xiaowei; Liu, Yu; Li, Xinghua; Shao, Changlu; Ri, Jisong; Ma, Jiangang; Liu, Yichun
Source:
Journal of hazardous materials 2021 v.403 pp. 124093
ISSN:
0304-3894
Subject:
ultraviolet radiation,   etc   ; adsorption; ambient temperature; lighting; nanofibers; toxicity;     Show all 6 Subjects
Abstract:
... Room-temperature gas sensors have emerged as effective platforms for sensing explosive or toxic gases in ambient environment. However, room-temperature gas sensor usually suffers from extremely poor sensitivity and sluggish response/recovery characteristics due to the low reacting activity at low temperature. Herein, we present a room-temperature NO₂ sensor with greatly enhanced sensitivity and ra ...
DOI:
10.1016/j.jhazmat.2020.124093