A new synthesis of well-dispersed, core-shell Ag@SiO2 mesoporous nanoparticles using amino acids and sugars

作者:Saint Cricq Philippe*; Wang Junzheng; Sugawara Narutaki Ayae; Shimojima Atsushi; Okubo Tatsuya
来源:Journal of Materials Chemistry B, 2013, 1(19): 2451-2454.
DOI:10.1039/c3tb20210k

摘要

Mesoporous silica-coated silver nanoparticles (Ag@MSN) were prepared by a two step synthesis in an environment friendly way. Arginine and glucose were used as a catalyst for the formation of silica and as a reducing agent for silver ions, respectively, in the presence of a cationic surfactant. Ag@MSNs having single Ag nanoparticles as cores were obtained with good selectivity. They showed excellent dispersibility in ethanol, forming a uniform coating on a glass substrate. Their antibacterial activity against E. coli was demonstrated.

  • 出版日期2013