Dissolved carbon monoxide concentration monitoring platform based on direct electrical connection of CO dehydrogenase with electrically accessible surface structure.

Aldehyde Oxidoreductases Carbon Monoxide Gold Metal Nanoparticles Multienzyme Complexes
CO biosensor Carbon monoxide dehydrogenase (CODH) Direct electron transfer (DET) Surface relief structure (SRS) Syngas fermentation

Journal

Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523

Informations de publication

Date de publication:
Feb 2020
Historique:
received: 30 09 2019
revised: 09 11 2019
accepted: 12 11 2019
pubmed: 4 12 2019
medline: 7 1 2020
entrez: 3 12 2019
Statut: ppublish

Résumé

CO dehydrogenase (CODH) employed in a dissolved CO biosensor development study harbors a solvent-exposed cofactor capable of DET to electrode. Here, CODH was immobilized on arrays of AuNPs of various dimensions to determine the effect of the size and shape of the electrode surface on the direct electrical connection between CODH and electrode surface. The results showed the degree of proximity between the CODH cofactor and electrode surface, which varied with AuNP size and caused significant changes to the electrical connection at the interface as well as to the substrate accessibility. Consequently, a high-density nanoscale SRS was fabricated on electrode to further facilitate direct electrical connection as well as to enable distribution of CODH into monolayer or near-monolayer for lowering the barrier of CO diffusion toward enzyme. The findings show the feasibility of controlling the direct electrical connection between CODH and the electrode as well as controlling the substrate accessibility.

Identifiants

DOI: 10.1016/j.biortech.2019.122436 PMID: 31787515
pubmed: 31787515
pii: S0960-8524(19)31666-9
doi: 10.1016/j.biortech.2019.122436
pii:
doi:

Substances chimiques

Multienzyme Complexes 0
Gold 7440-57-5
Carbon Monoxide 7U1EE4V452
Aldehyde Oxidoreductases EC 1.2.-
carbon monoxide dehydrogenase EC 1.2.7.4

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

122436

Informations de copyright

Copyright © 2019 Elsevier Ltd. All rights reserved.

Auteurs

Stacy Simai Reginald (SS)

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea.

Hyeryeong Lee (H)

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea.

Yoo Seok Lee (YS)

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea.

Muhammad Yasin (M)

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea; Bioenergy & Environmental Sustainable Membrane Technology (BEST) Research Group, Department of Chemical Engineering, COMSATS University Islamabad (CUI), Lahore Campus, Pakistan.

In Seop Chang (IS)

School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea. Electronic address: ischang@gist.ac.kr.

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Classifications MeSH

questionsmedicales.fr › Enzymes et coenzymes › Enzymes › Oxidoreductases › Oxidoreductases acting on aldehyde or oxo group donors › Aldehyde oxidoreductases › Dissolved carbon monoxide concentration...
questionsmedicales.fr › Produits chimiques inorganiques › Composés de l'oxygène › Oxydes › Monoxyde de carbone › Dissolved carbon monoxide concentration...
questionsmedicales.fr › Produits chimiques inorganiques › Métaux › Métaux lourds › Or › Dissolved carbon monoxide concentration...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Nanostructures › Nanoparticules › Nanoparticules métalliques › Dissolved carbon monoxide concentration...
questionsmedicales.fr › Enzymes et coenzymes › Enzymes › Complexes multienzymatiques › Dissolved carbon monoxide concentration...