journal article·2021-04-21Open access

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

Carlos Romero-Muñiz, María Ortega, Jose Guilherme Vilhena, Rubén Pérez, Juan Carlos Cuevas, Linda A. Zotti

Applied Sciences· Volume 11· Issue 9

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.
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Research context

OpenAlex topics: Molecular Junctions and Nanostructures · Electrochemical Analysis and Applications · Gold and Silver Nanoparticles Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain

Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. Utrera Km. 1, E-41013 Seville, Spain

Departamento de Física Aplicada I, Escuela Politécnica Superior, Universidad de Sevilla, E-41011 Seville, Spain

Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland

Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain

Funding

Universidad de Sevilla · Ministerio de Ciencia e Innovación · Horizon 2020 Framework Programme · Ministerio de Economía, Industria y Competitividad, Gobierno de España · Swiss National Science Foundation

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