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The Role of Metal Ions in the Electron Transport through Azurin-Based Junctions

Authors :
Carlos Romero-Muñiz
María Ortega
Jose Guilherme Vilhena
Rubén Pérez
Juan Carlos Cuevas
Linda A. Zotti
Source :
Applied Sciences, Vol 11, Iss 9, p 3732 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

We studied the coherent electron transport through metal–protein–metal junctions based on a blue copper azurin, in which the copper ion was replaced by three different metal ions (Co, Ni and Zn). Our results show that neither the protein structure nor the transmission at the Fermi level change significantly upon metal replacement. The discrepancy with previous experimental observations suggests that the transport mechanism taking place in these types of junctions is probably not fully coherent.

Details

Language :
English
ISSN :
20763417
Volume :
11
Issue :
9
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.9fb171d3b044008b669fb85d7c0208d
Document Type :
article
Full Text :
https://doi.org/10.3390/app11093732