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Photocurrent Generation from Hierarchical Zinc‐Substituted Hemoprotein Assemblies Immobilized on a Gold Electrode
Author(s) -
Onoda Akira,
Kakikura Yasuaki,
Uematsu Taro,
Kuwabata Susumu,
Hayashi Takashi
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201105186
Subject(s) - hemeprotein , photocurrent , heme , chemistry , zinc , electrode , supramolecular chemistry , protoporphyrin , biosensor , photochemistry , combinatorial chemistry , porphyrin , materials science , organic chemistry , biochemistry , molecule , optoelectronics , enzyme
All connected : A protein‐immobilized electrode comprising hierarchical assemblies of photoactive cytochrome b 562 reconstituted with zinc protoporphyrin IX exhibits remarkably enhanced photocurrent generation relative to an electrode bearing a single zinc‐substituted hemoprotein layer. The protein oligomers, which bear a covalently linked protoporphyrin group, assemble by a supramolecular heme/heme pocket interaction.