Heteroatom Substitution Induced Changes in Excited-State Photophysics and Singlet Oxygen Generation in Chalcogenoxanthylium Dyes:  Effect of Sulfur and Selenium Substitutions†

2004 ◽  
Vol 108 (25) ◽  
pp. 8668-8672 ◽  
Author(s):  
Tymish Y. Ohulchanskyy ◽  
David J. Donnelly ◽  
Michael R. Detty ◽  
Paras N. Prasad
Keyword(s):  
Excited State ◽  
Singlet Oxygen ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Heteroatom Substitution ◽  
Induced Changes

Photostabilization of endogenous porphyrins: excited state quenching by fused ring cyanoacrylates

2014 ◽  
Vol 13 (8) ◽  
pp. 1180-1184 ◽  
Author(s):  
Steffen Jockusch ◽  
Craig Bonda ◽  
Shengkui Hu
Keyword(s):  
Excited State ◽  
Singlet Oxygen ◽  
Excited States ◽  
Protoporphyrin Ix ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Fused Ring ◽  
Triplet Excited States ◽  
Excited State Quenching

Tricyclic cyanoacrylates quench singlet and triplet excited states of the endogenous chromophore protoporphyrin IX to prevent harmful singlet oxygen generation.

Design of Novel Photosensitizers and Controlled Singlet Oxygen Generation for Photodynamic Therapy

2021 ◽  
Author(s):  
Esra Tanrıverdi Eçik ◽  
Onur BULUT ◽  
Hasan Hüseyin Kazan ◽  
Elif Şenkuytu ◽  
Bunyemin Cosut
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Treatment ◽  
Singlet Oxygen ◽  
Side Effect ◽  
Side Effect Profile ◽  
High Ability ◽  
Lower Side ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Promising Strategy

Photodynamic therapy (PDT) is a promising strategy in cancer treatment with its relatively lower side effect profile. Undoubtedly, the key component of PDT is the photosensitizers with a high ability...

Achieving high singlet-oxygen generation by applying the heavy-atom effect to thermally activated delayed fluorescent materials

2021 ◽  
Author(s):  
Ya-Fang Xiao ◽  
Jia-Xiong Chen ◽  
Wen-Cheng Chen ◽  
Xiuli Zheng ◽  
Chen Cao ◽  
...  
Keyword(s):  
Singlet Oxygen ◽  
Heavy Atom ◽  
Synergetic Effect ◽  
Heavy Atom Effect ◽  
Oxygen Generation ◽  
Thermally Activated ◽  
Singlet Oxygen Generation ◽  
Fluorescent Materials ◽  
Atom Effect

Applying the heavy-atom effect to TADF photosensitizers achieves ultra-high 1O2 generation (ФΔ = 0.91) by the synergetic effect of small ΔEST and considerable SOC.

Biodegradable Nano-photosensitizer with Photoactivatable Singlet Oxygen Generation for Synergistic Phototherapy

2021 ◽  
Author(s):  
Jiaxin Shen ◽  
Dandan Chen ◽  
Ye Liu ◽  
Guoyang Gao ◽  
Zhihe Liu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Therapy ◽  
Singlet Oxygen ◽  
Near Infrared ◽  
Promising Method ◽  
Normal Cells ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Nir Light

Photodynamic therapy (PDT) is a promising method for cancer therapy and also may initiate unexpected damages to normal cells and tissues. Herein, we developed a near-infrared (NIR) light-activatable nanophotosensitizer, which...

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