2017•Review of Scientific InstrumentsRequires access

Note: Measuring instrument of singlet oxygen quantum yield in photodynamic effects

Zhongwei Li, Pengwei Zhang, Lixin Zang, Feng Qin, Zhiguo Zhang, Hongli Zhang

Abstract

Using diphenylisobenzofuran (C20H14O) as a singlet oxygen (1O2) reporter, a comparison method, which can be used to measure the singlet oxygen quantum yield (ΦΔ) of the photosensitizer quantitatively, is presented in this paper. Based on this method, an automatic measuring instrument of singlet oxygen quantum yield is developed. The singlet oxygen quantum yield of the photosensitizer hermimether and aloe-emodin is measured. It is found that the measuring results are identical to the existing ones, which verifies the validity of the measuring instrument.

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Key concepts: Singlet oxygen, Photosensitizer, Quantum yield, Yield (engineering), Photochemistry, Photodynamic therapy, Singlet state, Oxygen