Contaldo, Umberto; Roura Padrosa, David; Jamet, Hélène; Albrecht, Martin; Paradisi, Francesca; Le Goff, Alan (2023). Optimising Electrical Interfacing between the Trimeric Copper Nitrite Reductase and Carbon Nanotubes. Chemistry: a European journal, 29(47), e202301351. Wiley 10.1002/chem.202301351
Full text not available from this repository. (Request a copy)We report the immobilization of copper-containing NiR from Alcaligenes faecalis on functionalised MWCNT electrodes. We demonstrate that this immobilization is mainly driven by hydrophobic interactions, promoted by the modification of MWCNTs with adamantyl groups. Direct electrochemistry shows high bioelectrochemical reduction of nitrite at the redox potential of NiR with high current density of 1.41 mA cm-2. Furthermore, the desymmetrization of the trimer upon immobilization induces an independent electrocatalytic behavior for each of the three enzyme subunits, corroborated by an electron-tunneling distance dependence.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Roura Padrosa, David, Albrecht, Martin, Paradisi, Francesca |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
ISSN: |
1521-3765 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
14 Jun 2023 09:23 |
Last Modified: |
23 Aug 2023 00:14 |
Publisher DOI: |
10.1002/chem.202301351 |
PubMed ID: |
37310888 |
Uncontrolled Keywords: |
carbon nanotubes copper enzymes direct electron transfer nitrite reductase pyrene |
URI: |
https://boris.unibe.ch/id/eprint/183399 |
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