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 Механизм генерации синглетного кислорода в присутствии возбужденного нанопористого кремния

2018 ◽  
Vol 44 (11) ◽  
pp. 53
Author(s):  
Д.М. Самосват ◽  
О.П. Чикалова-Лузина ◽  
В.С. Хромов ◽  
А.Г. Зегря ◽  
Г.Г. Зегря
Keyword(s):  
Energy Transfer ◽  
Theoretical Analysis ◽  
Singlet Oxygen ◽  
Numerical Estimate ◽  
Oxygen Molecule ◽  
Nonradiative Energy Transfer ◽  
Exchange Mechanism ◽  
Numerical Estimation ◽  
Nanoporous Silicon ◽  
A Value

AbstractA theoretical analysis of the mechanism of generation of singlet oxygen in the presence of photoexcited nanoporous silicon is presented. It is demonstrated that the mechanism of generation of singlet oxygen is based on nonradiative energy transfer from nanoporous silicon to an oxygen molecule by the exchange mechanism. An analytical expression of the probability of energy transfer from nanoporous silicon to an oxygen molecule is obtained, and a numerical estimate of this process is given. The numerical estimation is of the order of 10^3–10^4 s^–1, a value that agrees rather well with the experiment.

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

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 Singlet oxygen generation mechanism in the presence of excited nanoporous silicon

2018 ◽  
Vol 1124 ◽  
pp. 031025 ◽  
Author(s):  
D M Samosvat ◽  
O P Chikalova-Luzina ◽  
V S Khromov ◽  
A G Zegrya ◽  
G G Zegrya
Keyword(s):  
Singlet Oxygen ◽  
Generation Mechanism ◽  
Nanoporous Silicon ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

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.

scholarly journals Singlet oxygen generation by nanoporous silicon: photoluminescence dynamics in magnetic field

2019 ◽  
Vol 31 (3) ◽  
pp. 035703
Author(s):  
Gazi N Aliev ◽  
Jamaree Amonkosolpan ◽  
Daniel Wolverson
Keyword(s):  
Magnetic Field ◽  
Singlet Oxygen ◽  
Nanoporous Silicon ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation

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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