Photoactivation studies of zinc porphyrin-myoglobin system and its application for light-chemical energy conversion

Chin Hao Chang, Yi Ting Hu, Chen Fu Lo, Liyang Luo, Hung Ming Lin, Cheng Hsiang Chang, Ching Yao Lin, Wei-Guang Diau, Tung-Kung Wu*

*Corresponding author for this work

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

An artificial zinc porphyrin-myoglobin-based photo-chemical energy conversion system, consisting of ZnPP-Mb or ZnPE1-Mb as a photosensitizer, NADP+ as an electron acceptor, and triethanolamine as an electron donor, has been constructed to mimic photosystem I. The photoirradiated product is able to reduce a single-electron acceptor protein cytochrome c, but cannot catalyze the two-electron reduction of acetaldehyde by alcohol dehydrogenase, thus demonstrating a single electron transfer mechanism. Furthermore, the artificial system can bifunctionally promote oxidoredox reactions, depending on the presence or absence of a sacrificial electron donor, thus suggesting its potential application in electrochemical regen-eration steps involved in chemical transformation and/or energy conversion.

原文English
頁(從 - 到)1203-1213
頁數11
期刊International journal of biological sciences
7
發行號8
DOIs
出版狀態Published - 1 一月 2011

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