Effective Singlet Oxygen Generation in Silica‐Coated CsPbBr 3 Quantum Dots through Energy Transfer for Photocatalysis

ChemSusChem ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 682-687 ◽  
Author(s):  
Kailun Gu ◽  
Yu Wang ◽  
Jianhua Shen ◽  
Jingrun Zhu ◽  
Yihua Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Singlet Oxygen ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

Ag-Conjugated graphene quantum dots with blue light-enhanced singlet oxygen generation for ternary-mode highly-efficient antimicrobial therapy

2020 ◽  
Vol 8 (7) ◽  
pp. 1371-1382 ◽  
Author(s):  
Yunjian Yu ◽  
Lin Mei ◽  
Yanmei Shi ◽  
Xinge Zhang ◽  
Kesong Cheng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Singlet Oxygen ◽  
Blue Light ◽  
Silver Nanoparticle ◽  
Broad Spectrum ◽  
Antimicrobial Therapy ◽  
Graphene Quantum Dots ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Highly Efficient

A broad-spectrum antibacterial system was produced in which silver nanoparticle-conjugated graphene quantum dots were utilised as a blue light-enhanced nanotherapeutic for efficient ternary-mode antimicrobial therapy.

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 Механизм генерации синглетного кислорода на поверхности возбужденного нанопористого кремния

2019 ◽  
Vol 53 (11) ◽  
pp. 1485
Author(s):  
Д.М. Самосват ◽  
О.П. Чикалова-Лузина ◽  
Г.Г. Зегря
Keyword(s):  
Energy Transfer ◽  
Theoretical Analysis ◽  
Singlet Oxygen ◽  
Numerical Estimate ◽  
Oxygen Molecule ◽  
Nonradiative Energy Transfer ◽  
Exchange Mechanism ◽  
Nanoporous Silicon ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

A theoretical analysis of the mechanism of generation of singlet oxygen on the surface of photoexcited nanoporous silicon is presented. It is shown that the nonradiative energy transfer from nanoporous silicon to the oxygen molecule by the Dexter exchange mechanism is the basis for the mechanism of singlet oxygen generation. An analytical expression is obtained and a numerical estimate of the probability of energy transfer from nanoporous silicon to an oxygen molecule is given. It was shown that its numerical value ~ (10^3-10^4) s^{-1} agrees quite well with experiment.

scholarly journals Organo Metal Halide Perovskites Effective Ly Photosensitize the Production of Singlet Oxygen (1Δg)

2019 ◽  
Author(s):  
XIan-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Singlet Oxygen ◽  
High Performance ◽  
Metal Halide ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
New Applications ◽  
Triplet Excitons

<p>Metal halide perovskite (MHP) materials are under extensive examination for various high performance optoelectronic applications, but their photosensitizing utilization for singlet oxygen generation has not been explored. Based on the observed characteristic NIR phosphorescence of singlet oxygen and the photosensitized decomposition of a specific singlet oxygen chemical trapper (diphenylisobenzofuran), we show herby that MAPbBr<sub>3</sub> quantum dots can significantly generate singlet oxygen with the quantum yield up to 0.34, which is the highest among nano semiconductor and nano metal material types of singlet oxygen photosensitizers. Further more, MAPbBr<sub>3</sub> quantum dots show good stability towards singlet oxygen. The mechanism of MHP as a singlet oxygen photosensitizer is also suggested to be due to triplet excitons. This finding expands new applications of MHPs in PDT, antiviral and antibacterial treatments, and pharmaceutical industry.</p>

Gold nanorod enhanced conjugated polymer/photosensitizer composite nanoparticles for simultaneous two-photon excitation fluorescence imaging and photodynamic therapy

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19551-19560 ◽  
Author(s):  
Shuang Li ◽  
Xiaoqin Shen ◽  
Qing-Hua Xu ◽  
Yong Cao
Keyword(s):  
Photodynamic Therapy ◽  
Energy Transfer ◽  
Singlet Oxygen ◽  
Plasmon Resonance ◽  
Conjugated Polymer ◽  
Oxygen Generation ◽  
Two Photon ◽  
Singlet Oxygen Generation ◽  
Photon Excitation ◽  
Two Photon Excitation

Plasmon resonance and energy transfer are integrated to prepare nano-photosensitizers with enhanced two-photon excitation fluorescence and singlet oxygen generation ability.

Enhanced singlet oxygen generation of a soft salt through efficient energy transfer between two ionic metal complexes

2018 ◽  
Vol 47 (16) ◽  
pp. 5582-5588 ◽  
Author(s):  
Yun Ma ◽  
Shujun Zhang ◽  
Huanjie Wei ◽  
Yafang Dong ◽  
Liang Shen ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Energy Transfer ◽  
Singlet Oxygen ◽  
Cancer Cells ◽  
Efficient Energy Transfer ◽  
Oxygen Generation ◽  
Efficient Energy ◽  
Singlet Oxygen Generation ◽  
Photodynamic Therapy Of Cancer ◽  
First Time

A novel soft salt based photosensitizer was successfully developed for application in photodynamic therapy of cancer cells for the first time.

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