Self-Assembled Rose Bengal-Exopolysaccharide Nanoparticles for Improved Photodynamic Inactivation of Bacteria by Enhancing Singlet Oxygen Generation Directly in the Solution

2018 ◽  
Vol 10 (19) ◽  
pp. 16715-16722 ◽  
Author(s):  
Chengcheng Li ◽  
Fengming Lin ◽  
Wei Sun ◽  
Fu-Gen Wu ◽  
Hang Yang ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Photodynamic Inactivation ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Self Assembled ◽  
Inactivation Of Bacteria

Robust Organic Photosensitizers Immobilized on a Vinylimidazolium Functionalized Support for Singlet Oxygen Generation under Continuous-Flow Conditions

Synlett ◽  
2020 ◽  
Vol 31 (05) ◽  
pp. 497-501 ◽  
Author(s):  
Koichiro Masuda ◽  
Yao Wang ◽  
Shun-ya Onozawa ◽  
Shigeru Shimada ◽  
Nagatoshi Koumura ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Crucial Role ◽  
Continuous Flow ◽  
Organic Molecules ◽  
Continuous Operation ◽  
Flow Conditions ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Flow Reaction

Rose Bengal was immobilized on a vinylimidazolium functionalized support, and the heterogeneous organic photosensitizer thus prepared was applied for photooxidation reactions of organic molecules under continuous-flow conditions. Substituents of the cation part of the support were found to play a crucial role in determining the lifetime of the catalyst. More than 11 days continuous operation of a flow reaction was achieved.

A maltoheptaose-decorated BODIPY photosensitizer for photodynamic inactivation of Gram-positive bacteria

2019 ◽  
Vol 43 (38) ◽  
pp. 15057-15065 ◽  
Author(s):  
Jie Hao ◽  
Zhi Song Lu ◽  
Chang Ming Li ◽  
Li Qun Xu
Keyword(s):  
Singlet Oxygen ◽  
Photodynamic Inactivation ◽  
Gram Positive ◽  
Oxygen Generation ◽  
Gram Positive Bacteria ◽  
Singlet Oxygen Generation

A maltoheptaose-decorated BODIPY with high singlet oxygen generation efficacy was synthesized for photodynamic inactivation of Gram-positive bacteria in planktonic forms and biofilms.

scholarly journals Luciferase–Rose Bengal conjugates for singlet oxygen generation by bioluminescence resonance energy transfer

2017 ◽  
Vol 53 (33) ◽  
pp. 4569-4572 ◽  
Author(s):  
Seonghoon Kim ◽  
HyeongChan Jo ◽  
Mijeong Jeon ◽  
Myung-Gyu Choi ◽  
Sei Kwang Hahn ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Energy Transfer ◽  
Singlet Oxygen ◽  
Rose Bengal ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Oxygen Species ◽  
Bioluminescence Resonance Energy Transfer ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Luciferase–Rose Bengal conjugates generated reactive oxygen species (ROS) inside cells via bioluminescence resonance energy transfer (BRET) without external light irradiation.

scholarly journals Photophysical Properties of Fluorescent Self-Assembled Peptide Nanostructures for Singlet Oxygen Generation

ACS Omega ◽  
2020 ◽  
Vol 5 (15) ◽  
pp. 8804-8815
Author(s):  
Geovany Albino de Souza ◽  
Fabio de Castro Bezerra ◽  
Tatiana Duque Martins
Keyword(s):  
Singlet Oxygen ◽  
Photophysical Properties ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Self Assembled

Phosphazene-bound Rose Bengal: A novel photosensitizer for singlet oxygen generation

1991 ◽  
Vol 1 (3) ◽  
pp. 389-395 ◽  
Author(s):  
Giacomo Facchin ◽  
Francesco Minto ◽  
Mario Gleria ◽  
Roberta Bertani ◽  
Pietro Bortolus
Keyword(s):  
Singlet Oxygen ◽  
Rose Bengal ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Rose Bengal-Grafted Biodegradable Microcapsules: Singlet-Oxygen Generation and Cancer-Cell Incapacitation

2011 ◽  
Vol 17 (40) ◽  
pp. 11223-11229 ◽  
Author(s):  
Xiao-Lei Wang ◽  
Yu Zeng ◽  
Yan-Zhen Zheng ◽  
Jian-Feng Chen ◽  
Xia Tao ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Cancer Cell ◽  
Rose Bengal ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Cationic Zn and Al phthalocyanines: synthesis, spectroscopy and photosensitizing properties

2007 ◽  
Vol 11 (08) ◽  
pp. 586-595 ◽  
Author(s):  
Dmitry A. Makarov ◽  
Olga A. Yuzhakova ◽  
Ludmila K. Slivka ◽  
Nina A. Kuznetsova ◽  
Vladimir M. Negrimovsky ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Structural Modification ◽  
Aqueous Media ◽  
Sewage Water ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Vis Spectroscopy ◽  
Key Features ◽  
A Minor ◽  
Inactivation Of Bacteria

Several Zn (II) and Al (III) phthalocyanines bearing eight or sixteen positive charges on substituents of different structure have been prepared. Synthesized polycationic phthalocyanines have been studied in aqueous and alcoholic media by UV-vis spectroscopy and tested for their efficacy in singlet oxygen photosensitization. It has been found that a minor structural modification at the periphery of the photosensitizer allows control over its key features such as singlet oxygen generation due to specific intermolecular interactions in solution. The efficacy of polycationic phthalocyanines to sensitize tryptophan photobleaching in aqueous media and inactivation of bacteria in sewage water is also structure-dependent. Among the complexes studied, two dyes - zinc octakis(pyridiniomethyl)- and octakis[ N -(2-hydroxyethyl)- N , N -dimethylammoniomethyl]substituted phthalocyanines - are the best sensitizers and have high potential for photodynamic applications.

Fe3O4@Au@mSiO2 as an enhancing nanoplatform for Rose Bengal photodynamic activity

Nanoscale ◽  
2017 ◽  
Vol 9 (29) ◽  
pp. 10388-10396 ◽  
Author(s):  
I. Rosa-Pardo ◽  
M. Roig-Pons ◽  
A. A. Heredia ◽  
J. V. Usagre ◽  
A. Ribera ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Outer Surface ◽  
Rose Bengal ◽  
Au Nanoparticles ◽  
Core Shell ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Photodynamic Activity

A novel nanoplatform integrated by core–shell Fe3O4@Au nanoparticles encapsulated near the outer surface of mSiO2 nanoparticles has been successfully synthesised and proved to enhance the efficiency of Rose Bengal for singlet oxygen generation.

Singlet Oxygen Generation in Dark‐Hypoxia by Catalytic Microenvironment‐Tailored Nanoreactors for NIR‐II Fluorescence‐Monitored Chemodynamic Therapy

2021 ◽  
Author(s):  
Tao Chen ◽  
Peidong Hou ◽  
Yafei Zhang ◽  
Rujiang Ao ◽  
Lichao Su ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation
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