Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
606819 | Journal of Colloid and Interface Science | 2015 | 5 Pages |
Abstract
Gold nanoparticles (4-7 nm) were synthesized from tetraauric acid using various amino acids as reducing and capping agents. The gold nanoparticles were produced from the incubation of a AuCl4â solution with an amino acid at 80 °C for 20 min. Among the twenty amino acids tested, several amino acids produced gold nanoparticles. The color of the nanoparticle solutions varied with the amino acids used for the reduction. We adopted l-histidine as a reducing agent and investigated the effects of the synthesis conditions on the gold nanoparticles. The His and AuCl4â concentrations affected the size of the gold nanoparticles and their aggregates. The pH of the reaction solution also affected the reaction yields and the shape of the gold nanoparticles.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Tatsuo Maruyama, Yuhei Fujimoto, Tetsuya Maekawa,