Abstract
Gold nanoparticles were prepared in poly(amidoamine)dendrimers poly(N-isopropylacrylamide) gel matrix. Three dendrimers used were generation 5 with surface amino group, generation 5.5 with surface methyl ester group, and generation 5.5 with surface carboxyl group. In the cases of dendrimers with surface amino group and surface methyl ester group, gold nanoparticles having diameter of 3∼4nm were obtained and their size distribution was relatively narrow. However, in the case of dendrimer with surface carboxyl group, gold nanoparticles with much larger size and wider size distribution were obtained. The role of dendrimers in the gel matrix for formation of gold nanoparticles was discussed.
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