The mechanism of an electrostatic nanofilter: overcoming entropy with electrostatics

Author:

Bodrenko Igor12,Ceccarelli Matteo23ORCID,Acosta-Gutierrez Silvia4ORCID

Affiliation:

1. École Normale Supérieure, Département de Chimie – Laboratoire PASTEUR, Paris, France

2. CNR-IOM, Sezione di Cagliari, Cittadella Universitaria di Monserrato, S.P.8 – km 0.700, 09042 Monserrato (CA), Italy

3. Department of Physics, University of Cagliari, Cittadella Universitaria di Monserrato, S.P.8 – km 0.700, 09042 Monserrato (CA), Italy

4. Institute for Bioengineering of Catalonia, Carrer Baldiri Reixac 10-12, 080028 Barcelona, Spain

Abstract

General porins are nature's sieving machinery in the outer membrane of Gram-negative bacteria. In the diffusive transport process of molecules, electrostatic interactions can help to decrease the entropic free energy barrier.

Funder

Agència de Gestió d'Ajuts Universitaris i de Recerca

Agence Nationale de la Recherche

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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