光化学还原制备IgG包裹的银纳米颗粒  

Preparation of IgG-Encapsulated Silver Nanoparticles by Photoreduction

作　　者：庄贞静[1,2] 肖丹[1] 

机构地区：[1]四川大学化工学院,四川成都610064 [2]华侨大学分子药物研究所,福建泉州362021

出　　处：《广西师范大学学报（自然科学版）》2010年第4期81-85,共5页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(20927007)

摘　　要：采用光化学还原方法合成人免疫球蛋白(IgG)包裹的银纳米颗粒胶体溶液,用X射线衍射仪(XRD)和透射电子显微镜(TEM)等技术对合成的IgG包裹的银纳米颗粒组分和形态进行表征。结果表明,采用光化学还原方法合成IgG包裹的银纳米颗粒,粒径在10 nm左右。得到的胶体溶液为黄色混浊液体,通过白光观察时,该胶体溶液呈透明状,其颜色随着制备条件的不同而发生变化。本文对产生这种特殊光学透光现象的原因进行了初步分析。IgG-encapsulated Ag nanoparticles were obtained by a simple photoreduction method.The prepared samples were characterized by TEM and XRD.The results showed that Ag nanoparticles with diameters about 20 nm were fabricated within IgG.The solutions obtained are opaque and yellow-brown in colors,but became transparent and exhibited different colors when viewed through white light.A tentative mechanism was proposed for the formation of the special optical phenomenon.

关 键 词：银纳米颗粒 人免疫球蛋白 光化学还原 

分 类 号：TB321[一般工业技术—材料科学与工程]