Nano Archive

Tailoring silver nanoparticle construction using dendrimer templated silica networks

Liu, Xiaojun and Kakkar, Ashok (2008) Tailoring silver nanoparticle construction using dendrimer templated silica networks. NANOTECHNOLOGY, 19 (24).

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/19/24/245...

Abstract

We have examined the role of the internal environment of dendrimer templated silica networks in tailoring the construction of silver nanoparticle assemblies. Silica networks from which 3,5-dihydroxybenzyl alcohol based dendrimer templates have been completely removed, slowly wet with an aqueous solution of silver acetate. The latter then reacts with internal silica silanol groups, leading to chemisorption of silver ions, followed by the growth of silver oxide nanoparticles. Silica network constructed using generation 4 dendrimer contains residual dendrimer template, and mixes with aqueous silver acetate solution easily. Upon chemisorption, silver ions get photolytically reduced to silver metal under a stabilizing dendrimer environment, leading to the formation of silver metal nanoparticles.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Physical Science > Nano objects
Material Science > Nanostructured materials
Material Science > Nanochemistry
ID Code:1334
Deposited By:Anuj Seth
Deposited On:09 Dec 2008 15:08
Last Modified:20 Jan 2009 09:36

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