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One‐Step Synthesis and Size Control of Dendrimer‐Protected Gold Nanoparticles: A Heat‐Treatment‐Based Strategy
Author(s) -
Sun Xuping,
Jiang Xiue,
Dong Shaojun,
Wang Erkang
Publication year - 2003
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200300093
Subject(s) - dendrimer , colloidal gold , nanoparticle , aqueous solution , chemistry , nucleation , chemical engineering , polymer chemistry , nanotechnology , materials science , organic chemistry , engineering
Dendrimer‐protected gold nanoparticles have been facilely obtained by heating an aqueous solution containing third‐generation poly(propyleneimine) dendrimers and HAuCl 4 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 HAuCl 4 .