Determination of singlet oxygen quantum yield of HiPorfin using Singlet Oxygen Sensor Green

Huiyun Lin*, Yi Shen, Defu Chen, Lisheng Lin, Buhong Li, Shusen Xie

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Singlet oxygen (1O2) is widely considered to be the predominant cytotoxic agent for photodynamic therapy (PDT), and the 1O2 quantum yield is a key characteristic for the newly developed photosensitizers. In this study, 1O2 generation from the HiPorfin is monitored indirectly by using the fluorescence probe Singlet Oxygen Sensor Green (SOSG). The good linear relationship between the concentration of HiPorfin and the initial reaction rate of SOSG is observed, and the 1O2 quantum yield of HiPorfin is determined to be 0.124 ± 0.001, as compared to the standard reference of Rose Bengal. The results suggest that SOSG can be useful for 1O2 quantum yield determination for the potential photosensitizers in PDT.

Original languageEnglish
Title of host publicationOptics in Health Care and Biomedical Optics IV
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventOptics in Health Care and Biomedical Optics IV - Beijing, China
Duration: 18 Oct 201020 Oct 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7845
ISSN (Print)1605-7422

Conference

ConferenceOptics in Health Care and Biomedical Optics IV
Country/TerritoryChina
CityBeijing
Period18/10/1020/10/10

Keywords

  • Fluorescence
  • HiPorfin
  • Initial reaction rate
  • Photodynamic therapy
  • Quantum yield
  • Singlet Oxygen Sensor Green
  • Singlet oxygen

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