Role of UV-irradiation and vanadyl compound in the alternating copolymerization

1971 ◽  
Vol 9 (3) ◽  
pp. 179-185 ◽  
Author(s):  
Junji Furukawa ◽  
Eiichi Kobayashi ◽  
Yutaka Iseda ◽  
Yoshihiro Arai
Keyword(s):  
Uv Irradiation ◽  
Alternating Copolymerization

scholarly journals Conversion of Methanol on Rutile TiO2 (110) and Tungsten Oxide Clusters: 2. The Role of Defects and Electron Transfer in Bifunctional Oxidic Photocatalysts

2021 ◽  
Author(s):  
Lars Mohrhusen ◽  
Jessica Kräuter ◽  
Katharina Al-Shamery
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
Tungsten Oxide ◽  
Organic Compounds ◽  
Uv Irradiation ◽  
Organic P ◽  
Rutile Tio2 ◽  
Metal Oxide Surfaces

The photochemical conversion of organic compounds on tailored transition metal oxide surfaces by (UV) irradiation has found wide applications ranging from the production of chemicals to the degradation of organic...

Effect of UV irradiation on stabilized collagen: Role of chromium(III)

2008 ◽  
Vol 62 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Nishtar Nishad Fathima ◽  
Raju Suresh ◽  
Jonnalagadda Raghava Rao ◽  
Balachandran Unni Nair ◽  
Thirumalachari Ramasami
Keyword(s):  
Uv Irradiation

Study on controlled radical alternating copolymerization of styrene with maleic anhydride under UV irradiation

2003 ◽  
Vol 52 (1) ◽  
pp. 98-103 ◽  
Author(s):  
De-Cheng Wu ◽  
Chun-Yan Hong ◽  
Cai-Yuan Pan ◽  
Wei-Dong He
Keyword(s):  
Maleic Anhydride ◽  
Uv Irradiation ◽  
Alternating Copolymerization

scholarly journals Photolysis of sulfamethazine using UV irradiation in an aqueous medium

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1427-1435 ◽  
Author(s):  
Zhigang Yi ◽  
Juan Wang ◽  
Qiong Tang ◽  
Tao Jiang
Keyword(s):  
Aqueous Medium ◽  
Uv Irradiation ◽  
Reactive Species ◽  
Photochemical Behavior

The role of reactive species in SMN photolysis and the effects of dissolved substances on SMN photochemical behavior.

Analysis of the role of complex in the alternating copolymerization of N-vinylpyrrolidone and maleic anhydride

1987 ◽  
Vol 18 (3) ◽  
pp. 225-232 ◽  
Author(s):  
Flóra Fehérvári ◽  
Mária Azori ◽  
Tamara Földes-Berezsnich ◽  
Ferenc Tudős
Keyword(s):  
Maleic Anhydride ◽  
Alternating Copolymerization

scholarly journals Functional Properties of Borrelia burgdorferi recA

2004 ◽  
Vol 186 (8) ◽  
pp. 2275-2280 ◽  
Author(s):  
Dionysios Liveris ◽  
Vishwaroop Mulay ◽  
Ira Schwartz
Keyword(s):  
Gene Expression ◽  
Borrelia Burgdorferi ◽  
Uv Irradiation ◽  
Reca Protein ◽  
Primary Role ◽  
Rapid Loss ◽  
E Coli ◽  
Uv Dose ◽  
Null Mutants

ABSTRACT Functions of the Borrelia burgdorferi RecA protein were investigated in Escherichia coli recA null mutants. Complementation with B. burgdorferi recA increased survival of E. coli recA mutants by 3 orders of magnitude at a UV dose of 2,000 μJ/cm2. The viability at this UV dose was about 10% that provided by the homologous recA gene. Expression of B. burgdorferi recA resulted in survival of E. coli at levels of mitomycin C that were lethal to noncomplemented hosts. B. burgdorferi RecA was as effective as E. coli RecA in mediating homologous recombination in E. coli. Furthermore, E. coli λ phage lysogens complemented with B. burgdorferi recA produced phage even in the absence of UV irradiation. The level of phage induction was 55-fold higher than the level in cells complemented with the homologous recA gene, suggesting that B. burgdorferi RecA may possess an enhanced coprotease activity. This study indicates that B. burgdorferi RecA mediates the same functions in E. coli as the homologous E. coli protein mediates. However, the rapid loss of viability and the absence of induction in recA expression after UV irradiation in B. burgdorferi suggest that recA is not involved in the repair of UV-induced damage in B. burgdorferi. The primary role of RecA in B. burgdorferi is likely to be a role in some aspect of recombination.

The role of UV-irradiation pretreatment on the degradation of 2,4-dichlorophenoxyacetic acid in water

Luminescence ◽  
2010 ◽  
Vol 26 (3) ◽  
pp. 156-161 ◽  
Author(s):  
O. Tchaikovskaya ◽  
I. Sokolova ◽  
G.V. Mayer ◽  
E. Karetnikova ◽  
E. Lipatnikova ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Dichlorophenoxyacetic Acid ◽  
2,4 Dichlorophenoxyacetic Acid

scholarly journals Assessment of the Microbiome Role in Skin Protection Against UV Irradiation Via Network Analysis

2020 ◽  
Vol 11 (3) ◽  
pp. 238-242
Author(s):  
Mohammad Hossein Heidari ◽  
Mohammadreza Razzaghi ◽  
Alireza Akbarzadeh Baghban ◽  
Mohammad Rostami-Nejad ◽  
Mostafa Rezaei-Tavirani ◽  
...  
Keyword(s):  
Gene Expression ◽  
Network Analysis ◽  
Uv Irradiation ◽  
Microarray Dataset ◽  
Protective Role ◽  
Skin Microbiome ◽  
Specific Pathogen ◽  
Proteinprotein Interaction ◽  
Centrality Analysis

Introduction: Diverse microbiotas which have some contributions to gene expression reside in human skin. To identify the protective role of the skin microbiome against UV exposure, proteinprotein interaction (PPI) network analysis is used to assessment gene expression alteration. Methods: A microarray dataset, GEO accession number GSE117359, was considered in this respect. Differential expressed genes (DEGs) in the germ-free (GF) and specific pathogen-free (SPF) groups are analyzed by GEO2R. The top significant DEGs were assigned for network analysis via Cytoscape 3.7.2 and its applications. Results: A total of 28 genes were identified as significant DEGs and the centrality analysis of the network indicated that only one of the seven hub-bottlenecks was from queried genes. The gene ontology analysis of Il6, Cxcl2, Cxcl1, TNF, Il10, Cxcl10, and Mmp9 showed that the crucial genes were highly enriched in the immune system. Conclusion: The skin microbiome plays a significant role in the protection of skin against UV irradiation and the role of TNF and IL6 is prominent in this regard.

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