Surface-generated copper ions induce ...
Document type :
Compte-rendu et recension critique d'ouvrage
Title :
Surface-generated copper ions induce multilayer growth of small peptides
Author(s) :
Landoulsi, Jessem [Auteur correspondant]
Laboratoire de Réactivité de Surface [LRS]
Dupres, Vincent [Auteur]
Microbiologie cellulaire et physique de l’infection = Cellular Microbiology and Physics of Infection Group [Lille] [CMPI]
Méthivier, Christophe [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Mfiban, Ivan Leteyi [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Cornette, Pauline [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Colaço, Elodie [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Pradier, Claire-Marie [Auteur correspondant]
Laboratoire de Réactivité de Surface [LRS]
Laboratoire de Réactivité de Surface [LRS]
Dupres, Vincent [Auteur]
Microbiologie cellulaire et physique de l’infection = Cellular Microbiology and Physics of Infection Group [Lille] [CMPI]
Méthivier, Christophe [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Mfiban, Ivan Leteyi [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Cornette, Pauline [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Colaço, Elodie [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Pradier, Claire-Marie [Auteur correspondant]
Laboratoire de Réactivité de Surface [LRS]
Journal title :
Applied Surface Science
Pages :
145105
Publisher :
Elsevier
Publication date :
2020-03-30
ISSN :
0169-4332
HAL domain(s) :
Physique [physics]
English abstract : [en]
Herein, we investigate the adsorption behavior of a small peptide, Glu-Cys-Gly, in aqueous solution onto copper surface and unravel a mechanism of growth of a hybrid peptide-copper multilayer the thickness of which may ...
Show more >Herein, we investigate the adsorption behavior of a small peptide, Glu-Cys-Gly, in aqueous solution onto copper surface and unravel a mechanism of growth of a hybrid peptide-copper multilayer the thickness of which may exceed a hundred of nanometers. Thanks to a combined set of surface characterizations supported by theoretical considerations, we provide a comprehensive understanding of the driving force and parameters influencing multilayer growth. (i) The generation of Cu+ ions due to the dissolution of copper surface, modulated by pH, results in the formation of cuprous-thiolate complex made of two peptide molecules anchoring one Cu+ cation. (ii) The stability of this hybrid multilayers is ensured by intermolecular interactions between peptide-copper entities mainly through a combination of electrostatic interaction and hydrogen bonds which stabilize the supramolecular edifice.Show less >
Show more >Herein, we investigate the adsorption behavior of a small peptide, Glu-Cys-Gly, in aqueous solution onto copper surface and unravel a mechanism of growth of a hybrid peptide-copper multilayer the thickness of which may exceed a hundred of nanometers. Thanks to a combined set of surface characterizations supported by theoretical considerations, we provide a comprehensive understanding of the driving force and parameters influencing multilayer growth. (i) The generation of Cu+ ions due to the dissolution of copper surface, modulated by pH, results in the formation of cuprous-thiolate complex made of two peptide molecules anchoring one Cu+ cation. (ii) The stability of this hybrid multilayers is ensured by intermolecular interactions between peptide-copper entities mainly through a combination of electrostatic interaction and hydrogen bonds which stabilize the supramolecular edifice.Show less >
Language :
Anglais
Popular science :
Non
Source :
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