Towards Aqueous Gold Nanoparticles with Buffer Resistance and High Concentration

X-B Xu, S. Li, J-B Fan, J. Cui, J-H Liu, Z-W Liang, S-L Luo, M-Q Zhu
Hunan University, CN

Keywords: gold nanoparticles, polyvinylpyrrolidone, stability

Abstract:

A facile method to high-concentrated solution of gold nanoparticles is reported. Gold nanoparticles with different sizes were synthesized through modified citrate-reduction method by increasing the HAuCl4 and citrate in the presence of polyvinylpyrrolidone (PVP). As a modified procedure to gold nanoparticles, PVP-stabilized gold nanoparticles are more stable in a broad range of pH and different buffers than conventional gold nanoparticles without notable cytotoxicity.