论文部分内容阅读
以巯基乙酸为稳定剂在水溶液中实现了CdSe量子点(QDs)在MWCNTs(多壁碳纳米管)上的原位生长,并与生物分子牛血清蛋白(BSA)偶联,通过电镜、荧光、紫外、X射线衍射等技术对CdSe量子点-MWCNTs异质结(CdSe-MWCNTs)及异质结-牛血清蛋白偶联体(CdSe-MWCNTs-BSA)进行了表征。结果表明,CdSe量子点可在碳纳米管活化部位发生原位组装得到CdSe-MWCNTs异质结,该异质结可与牛血清蛋白偶联,CdSe-MWCNTs异质结及偶联后的复合物(CdSe-MWCNTs-BSA)均具有荧光性质。
The in-situ growth of CdSe quantum dots (QDs) on MWCNTs (MWCNTs) was achieved with thioglycolic acid as a stabilizing agent in aqueous solution and coupled with the biomolecule bovine serum albumin (BSA). Electron microscopy, fluorescence, The CdSe quantum dots-MWCNTs heterojunction (CdSe-MWCNTs) and the heterojunction-BSA conjugates (CdSe-MWCNTs-BSA) were characterized by UV and X-ray diffraction. The results show that the CdSe QDs can be assembled in situ at the activated sites of the carbon nanotubes to obtain CdSe-MWCNTs heterojunction, which can be coupled with bovine serum albumin, CdSe-MWCNTs heterojunction and the coupled complex (CdSe-MWCNTs-BSA) have fluorescent properties.