scholarly journals Correction to “Photocatalyst-Free Singlet Oxygen-Induced Oxygenation: A Strategy for the Preparation of 5-Cyano-2-pyridones Driven by Blue-Light Irradiation”

2020 ◽  
Vol 85 (14) ◽  
pp. 9446-9446
Author(s):  
Mengmeng Zhang ◽  
Hanyang Lan ◽  
Nan Li ◽  
Qidi Zhong ◽  
Hao Zhu ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Blue Light ◽  
Light Irradiation

scholarly journals Синтез и исследование структуры и свойств фотоактивных ZnO-SnO_2-Ag(AgCl) наноматериалов для медицины и экологических приложений

2021 ◽  
Vol 129 (5) ◽  
pp. 642
Author(s):  
В.М. Волынкин ◽  
Д.П. Данилович ◽  
С.К. Евстропьев ◽  
К.В. Дукельский ◽  
К.Ю. Сенчик ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Blue Light ◽  
Uv Irradiation ◽  
Sem Analysis ◽  
Light Irradiation ◽  
Luminescence Spectroscopy ◽  
Gram Negative Bacteria ◽  
Structure And Properties ◽  
Gram Negative ◽  
Bactericidal Properties

Photoactive ZnO-SnO2-Ag(AgCl) nanomaterials have been prepared by polymer-salt method. Prepared materials able to generate singlet oxygen under UV and blue light irradiation. Materials structure and properties have been studied by optical and luminescence spectroscopy, XRD and SEM analysis. It was found that the structure of ZnO-SnO2-Ag(AgCl) materials consists of hexagonal ZnO, tetragonal SnO2, Ag and AgCl crystals having size 50÷60 nm. Obtained materials able to generate chemically active singlet oxygen under UV irradiation and have high bactericidal properties against both gram-positive and gram-negative bacteria. The increase of Ag content enhances the bactericidal properties of prepared materials.

scholarly journals Tailing miniSOG: Structural Bases of the Complex Photophysics of a Flavin-Binding Singlet Oxygen Photosensitizing Protein

2018 ◽  
Author(s):  
Joaquim Torra ◽  
Céline Lafaye ◽  
Luca Signor ◽  
Sylvain Aumonier ◽  
Cristina Flors ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Singlet Oxygen ◽  
Molecular Mechanism ◽  
Blue Light ◽  
Light And Electron Microscopy ◽  
Light Irradiation ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator ◽  
Flavin Binding

We have elucidated the molecular mechanism by which the photosensitizing protein miniSOG, initially a poor singlet oxygen generator, becomes an efficient singlet oxygen generator after prolonged blue-light irradiation and a useful tool in correlative light and electron microscopy (CLEM) experiments.<br>

Photocatalyst-Free Singlet Oxygen-Induced Oxygenation: A Strategy for the Preparation of 5-Cyano-2-pyridones Driven by Blue-Light Irradiation

2020 ◽  
Vol 85 (12) ◽  
pp. 8279-8286 ◽  
Author(s):  
Mengmeng Zhang ◽  
Hanyang Lan ◽  
Nan Li ◽  
Qidi Zhong ◽  
Hao Zhu ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Blue Light ◽  
Light Irradiation

scholarly journals Tailing miniSOG: Structural Bases of the Complex Photophysics of a Flavin-Binding Singlet Oxygen Photosensitizing Protein

2018 ◽  
Author(s):  
Joaquim Torra ◽  
Céline Lafaye ◽  
Luca Signor ◽  
Sylvain Aumonier ◽  
Cristina Flors ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Singlet Oxygen ◽  
Molecular Mechanism ◽  
Blue Light ◽  
Light And Electron Microscopy ◽  
Light Irradiation ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator ◽  
Flavin Binding

We have elucidated the molecular mechanism by which the photosensitizing protein miniSOG, initially a poor singlet oxygen generator, becomes an efficient singlet oxygen generator after prolonged blue-light irradiation and is a useful tool in correlative light and electron microscopy (CLEM) experiments.<br>

scholarly journals Tailing miniSOG: Structural Bases of the Complex Photophysics of a Flavin-Binding Singlet Oxygen Photosensitizing Protein

2018 ◽  
Author(s):  
Joaquim Torra ◽  
Céline Lafaye ◽  
Luca Signor ◽  
Sylvain Aumonier ◽  
Cristina Flors ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Singlet Oxygen ◽  
Molecular Mechanism ◽  
Blue Light ◽  
Light And Electron Microscopy ◽  
Light Irradiation ◽  
Oxygen Generator ◽  
Singlet Oxygen Generator ◽  
Flavin Binding

We have elucidated the molecular mechanism by which the photosensitizing protein miniSOG, initially a poor singlet oxygen generator, becomes an efficient singlet oxygen generator after prolonged blue-light irradiation and a useful tool in correlative light and electron microscopy (CLEM) experiments.<br>

scholarly journals Ruthenium-based PACT agents based on bisquinoline chelates: synthesis, photochemistry, and cytotoxicity

2021 ◽  
Author(s):  
Anja Busemann ◽  
Ingrid Flaspohler ◽  
Xue-Quan Zhou ◽  
Claudia Schmidt ◽  
Sina K. Goetzfried ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Singlet Oxygen ◽  
Cancer Cells ◽  
Cellular Uptake ◽  
Ruthenium Complex ◽  
Human Cancer ◽  
Light Irradiation ◽  
Quantum Yields ◽  
Light Activation ◽  
Human Cancer Cells

AbstractThe known ruthenium complex [Ru(tpy)(bpy)(Hmte)](PF6)2 ([1](PF6)2, where tpy = 2,2’:6’,2″-terpyridine, bpy = 2,2’-bipyridine, Hmte = 2-(methylthio)ethanol) is photosubstitutionally active but non-toxic to cancer cells even upon light irradiation. In this work, the two analogs complexes [Ru(tpy)(NN)(Hmte)](PF6)2, where NN = 3,3'-biisoquinoline (i-biq, [2](PF6)2) and di(isoquinolin-3-yl)amine (i-Hdiqa, [3](PF6)2), were synthesized and their photochemistry and phototoxicity evaluated to assess their suitability as photoactivated chemotherapy (PACT) agents. The increase of the aromatic surface of [2](PF6)2 and [3](PF6)2, compared to [1](PF6)2, leads to higher lipophilicity and higher cellular uptake for the former complexes. Such improved uptake is directly correlated to the cytotoxicity of these compounds in the dark: while [2](PF6)2 and [3](PF6)2 showed low EC50 values in human cancer cells, [1](PF6)2 is not cytotoxic due to poor cellular uptake. While stable in the dark, all complexes substituted the protecting thioether ligand upon light irradiation (520 nm), with the highest photosubstitution quantum yield found for [3](PF6)2 (Φ[3] = 0.070). Compounds [2](PF6)2 and [3](PF6)2 were found both more cytotoxic after light activation than in the dark, with a photo index of 4. Considering the very low singlet oxygen quantum yields of these compounds, and the lack of cytotoxicity of the photoreleased Hmte thioether ligand, it can be concluded that the toxicity observed after light activation is due to the photoreleased aqua complexes [Ru(tpy)(NN)(OH2)]2+, and thus that [2](PF6)2 and [3](PF6)2 are promising PACT candidates. Graphic abstract

Photoinduced Iron-Catalyzed Atom Transfer Radical Polymerization with ppm Levels of Iron Catalyst under Blue Light Irradiation

2017 ◽  
Vol 50 (20) ◽  
pp. 7967-7977 ◽  
Author(s):  
Sajjad Dadashi-Silab ◽  
Xiangcheng Pan ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Blue Light ◽  
Iron Catalyst ◽  
Light Irradiation ◽  
Atom Transfer

Evaluation of Photobiogoverning Role of Blue Light Irradiation on Viral Replication

2021 ◽  
Author(s):  
Phil‐Sun Oh ◽  
Kyung Won Kang ◽  
Seung Rok Ryu ◽  
SeokTae Lim ◽  
Myung‐Hee Sohn ◽  
...  
Keyword(s):  
Viral Replication ◽  
Blue Light ◽  
Light Irradiation

scholarly journals Effects of blue-light irradiation during dental treatment

2018 ◽  
Vol 54 (4) ◽  
pp. 160-168 ◽  
Author(s):  
Fumihiko Yoshino ◽  
Ayaka Yoshida
Keyword(s):  
Blue Light ◽  
Dental Treatment ◽  
Light Irradiation
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