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Assembly of Decavanadate Polyanions by Collagen Helices: Synthesis of an Hybrid Inorganic-Bioorganic Mmaterial

Published online by Cambridge University Press:  26 February 2011

Axel Marchal ,
Nathalie Steunou ,
Gervaise Mosser ,
Thibaud Coradin ,
Jocelyne Maquet  and
Jacques Livage
Axel Marchal
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris, 4 place jussieu, T54-E5, Paris cedex 05, 75252, France
Nathalie Steunou
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris-UMR CNRS 7574, 4 place jussieu, T54-E5, Paris, 75252, France
Gervaise Mosser
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris-UMR CNRS 7574, 4 place jussieu, T54-E5, Paris, 75252, France
Thibaud Coradin
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris-UMR CNRS 7574, 4 place jussieu, T54-E5, Paris, 75252, France
Jocelyne Maquet
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris-UMR CNRS 7574, 4 place jussieu, T54-E5, Paris, 75252, France
Jacques Livage
Affiliation:
[email protected], University Paris 6, Chimie de la Matière Condensée de Paris-UMR CNRS 7574, 4 place jussieu, T54-E5, Paris, 75252, France
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Abstract

Vanadium oxide-collagen hybrid nanocomposites were prepared by adding a V2O5 sol to a dilute collagen solution. 51V MAS NMR spectroscopy shows that the inorganic phase is composed of the decavanadate [H2V10O28]4− polyanion and V2O5 ribbon-like particles. The broadening of the 51V signals and the absence of Bragg peaks in the XRD pattern suggest a strong disorder concerning the organization of the V2O5 particles and of the decavanadate species in the composites. Analogous hybrid nanocomposites were obtained with a solution that contains only the decavanadate species, showing that the cohesion in the hydrid material results mainly from electrostatic interactions between decavanadate [H2V10O28]4− polyanions and positively-charged collagen helices.

Keywords

Vsol-gelbiological synthesis (assembly)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 972: Symposium AA – Solid-State Ionics—2006 , 2006 , 0972-AA05-04-QQ02-04
Copyright
Copyright © Materials Research Society 2007

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