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Photo-manipulation of activity of enzymes bound to inorganic nanomaterials


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Title: Photo-manipulation of activity of enzymes bound to inorganic nanomaterials
Authors: Kamada, Kai
Issue Date: 16-Oct-2019
Publisher: Elsevier Inc.
Citation: Journal of Solid State Chemistry, 280, art.no.120996; 2019
Abstract: The present review introduces various enzymatic reaction systems employing an external light source (visible or UV light) to initiate enzymatic reaction and/or adjust its reaction rate, that is, photo-manipulation of enzymatic activity. In general, a photon-receptor such as semiconductor with a suitable band gap size is needed to interact with enzymes because enzyme molecules are typically not photosensitive. When irradiated, photocarriers (electrons or holes) in the photon-receptors are transferred from the photo-receptors to enzymes for excitation, and then enzymatic reaction breaks out. Hence, switching of enzymatic activity is achievable by turning on/off the light source. The fact that photocarriers are triggers, indicates that redox enzymes that can be stimulated by negative electrons or positive holes are well-matched for the proposed systems. In addition, it has been reported that light-induced-environmental changes (pH, temperature) around enzymes are also useful for strict control of enzymatic activity.
Keywords: Bioluminescence / Enzyme / Photoirradiation / Photoswitching / Semiconductor nanoparticles
URI: http://hdl.handle.net/10069/39518
ISSN: 00224596
DOI: 10.1016/j.jssc.2019.120996
Rights: © 2019 Elsevier Inc. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: Journal Article
Text Version: author
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/39518

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