摘要
分别用柠檬酸钠和丙烯酸钠做还原剂制备金纳米微粒,并分别用它们对几丁聚糖微胶囊进行化学修饰,提出了新的修饰方法,制备出新的金-海藻酸钙-几丁聚糖微胶囊(GACM).运用分光光度法对2个体系下制得的GACM的渗透性进行了测定,结果表明柠檬酸体系下制得的GACM的渗透性比丙烯酸钠体系下制得的GACM的渗透性要大.
The permeability is one of the most important properties of microcapsules. It is reported a modification for alginate - chitosan microcapsules with nanosized gold citrate or acrylate. The comparison of permeabilities for gold - alginate - chitosan microcapsules modified with nanosized gold citrate and acrylate was reported by spectrophotometry and using Vitamin B12 as penetrant. The experimental results showsed that the permeability of gold - alginate - chiosan microcapsules treated with citrate was higher than that of gold - alginate - chitosan microcapsules treated with acrylate
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期191-194,共4页
Journal of Yunnan University(Natural Sciences Edition)
基金
甘肃省教育厅与英国伯明翰大学合作项目资助(0613B-04)
