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

Applied Sciences

Rubén Pérez¹  LindaA. Zotti¹  María Ortega¹  Carlos Romero-Muñiz¹  JuanCarlos Cuevas¹  JoseGuilherme Vilhena² 

[1] Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain;Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland;

关键词: azurin;    solid-state junction;    biomolecular electronics;    electronic transport;    density functional theory;    molecular dynamics;   

DOI  :  10.3390/app11093732

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown