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Preparation and isolation of gold nanoparticles coated with a stabilizer and sol-gel compatible agent

Published online by Cambridge University Press:  31 January 2011

R. Trbojevich
Affiliation:
Laboratorio de Materiales Cerámicos, FCEIyA, IFIR, UNR, Av. Pellegrini 250, 2000, Rosario, Argentina
N. Pellegri
Affiliation:
Laboratorio de Materiales Cerámicos, FCEIyA, IFIR, UNR, Av. Pellegrini 250, 2000, Rosario, Argentina
A. Frattini
Affiliation:
Laboratorio de Materiales Cerámicos, FCEIyA, IFIR, UNR, Av. Pellegrini 250, 2000, Rosario, Argentina
O. de Sanctis
Affiliation:
Laboratorio de Materiales Cerámicos, FCEIyA, IFIR, UNR, Av. Pellegrini 250, 2000, Rosario, Argentina
P. J. Morais
Affiliation:
Departamento de Engenharia de Materiais/INESC, Instituto Superior Técnico, Av. Rovisco Pais, 1000–049 Lisboa, Portugal
R. M. Almeida
Affiliation:
Departamento de Engenharia de Materiais/INESC, Instituto Superior Técnico, Av. Rovisco Pais, 1000–049 Lisboa, Portugal
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Abstract

In this work an attractive technique is presented that brings together the advantage of the micelle reverse technique to control the particle growth and the efficiency of the amine silanes as sol-gel-compatible surface modifiers. The diamino silane is far from being a passive agent in the formation process of the gold particle; it strongly modifies the growth of the gold particle in the reverse micelle. The diamino silane allows the gold particles to keep their individual properties unaltered throughout the process, which ends with their incorporation into a SiO2–TiO2 sol-gel thin film.

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Articles
Copyright
Copyright © Materials Research Society 2002

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