Controlled self-assembly of thiol-terminated poly(amidoamine) dendrimer and gold nanoparticles

A dendrimer-mediated “bricks and mortar” strategy for the ordering of gold nanoparticles into structured assemblies was described. The poly(amidoamine) (PAMAM) dendrimer used were generation 2.0–5.0 having surface thiol group (G2.0–5.0 SH). By using thiol-terminated PAMAM dendrimer, stable self-asse...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2005-05, Vol.259 (1), p.89-94
Main Authors: Pan, Bifeng, Gao, Feng, Ao, Limei, Tian, Hongye, He, Rong, Cui, Daxiang
Format: Article
Language:English
Subjects:
Bricks and mortar
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Gold nanoparticle
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Poly(amidoamine) (PAMAM) dendrimer
Self-assembly
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Summary:A dendrimer-mediated “bricks and mortar” strategy for the ordering of gold nanoparticles into structured assemblies was described. The poly(amidoamine) (PAMAM) dendrimer used were generation 2.0–5.0 having surface thiol group (G2.0–5.0 SH). By using thiol-terminated PAMAM dendrimer, stable self-assembled gold clusters in water were obtained as characterized by UV–vis spectroscopy and transmission electron microscopy. In this approach, direct control of interparticle space is provided through choice of dendrimer generation.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2005.02.009