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

doi:10.7150/ijbs.7.1203

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

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1203-1213
Number of pages	11
Journal	International journal of biological sciences
Volume	7
Issue number	8
DOIs	https://doi.org/10.7150/ijbs.7.1203
State	Published - 1 Jan 2011

Keywords

Biosensitizer
Myoglobin
Oxidoredox reaction
Photoelectrochemical energy conversion
Zinc protoporphyrin

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

abstract = "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.",

keywords = "Biosensitizer, Myoglobin, Oxidoredox reaction, Photoelectrochemical energy conversion, Zinc protoporphyrin",

author = "Chang, {Chin Hao} and Hu, {Yi Ting} and Lo, {Chen Fu} and Liyang Luo and Lin, {Hung Ming} and Chang, {Cheng Hsiang} and Lin, {Ching Yao} and Wei-Guang Diau and Tung-Kung Wu",

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doi = "10.7150/ijbs.7.1203",

language = "English",

volume = "7",

pages = "1203--1213",

journal = "International Journal of Biological Sciences",

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Photoactivation studies of zinc porphyrin-myoglobin system and its application for light-chemical energy conversion. / Chang, Chin Hao; Hu, Yi Ting; Lo, Chen Fu; Luo, Liyang; Lin, Hung Ming; Chang, Cheng Hsiang; Lin, Ching Yao; Diau, Wei-Guang ; Wu, Tung-Kung.

In: International journal of biological sciences, Vol. 7, No. 8, 01.01.2011, p. 1203-1213.

Research output: Contribution to journal › Article › peer-review

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T1 - Photoactivation studies of zinc porphyrin-myoglobin system and its application for light-chemical energy conversion

AU - Chang, Chin Hao

AU - Hu, Yi Ting

AU - Lo, Chen Fu

AU - Luo, Liyang

AU - Lin, Hung Ming

AU - Chang, Cheng Hsiang

AU - Lin, Ching Yao

AU - Diau, Wei-Guang

AU - Wu, Tung-Kung

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KW - Myoglobin

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KW - Photoelectrochemical energy conversion

KW - Zinc protoporphyrin

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