One-Step Synthesis and Size Control of Dendrimer-Protected Gold Nanoparticles: A Heat-Treatment-Based Strategy

Dendrimer‐protected gold nanoparticles have been facilely obtained by heating an aqueous solution containing third‐generation poly(propyleneimine) dendrimers and HAuCl4 without the additional step of introducing other reducing agents. Transmission electron microscopy (TEM) and UV‐vis data indicate t...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2003-11, Vol.24 (17), p.1024-1028
Main Authors: Sun, Xuping, Jiang, Xiue, Dong, Shaojun, Wang, Erkang
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
dendrimers
Exact sciences and technology
gold nanoparticles
heat treatment
Materials science
Nanopowders
Nanoscale materials and structures: fabrication and characterization
nanotechnology
one-step synthesis
Organic polymers
Physicochemistry of polymers
Physics
Properties and characterization
Special properties (catalyst, reagent or carrier)
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Summary:Dendrimer‐protected gold nanoparticles have been facilely obtained by heating an aqueous solution containing third‐generation poly(propyleneimine) dendrimers and HAuCl4 without the additional step of introducing other reducing agents. Transmission electron microscopy (TEM) and UV‐vis data indicate the size, the nucleation, and growth kinetics of gold nanoparticles thus formed, which can be tuned by changing the initial molar ratio of dendrimer to gold. The formation of dendrimer–gold nanoparticles by the heat treatment of an aqueous solution containing third‐generation poly(propyleneimine) dendrimers and HAuCl4.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200300093