Synthesis and Adsorption Study of BSA Surface Imprinted Polymer on CdS Quantum Dots  

BSA表面压印CdS量子点分子压印聚合物的合成及吸附性质

作　　者：唐苹苹[1] 蔡继宝[1] 苏庆德[1] 

机构地区：[1]中国科学技术大学化学系,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2010年第2期195-200,I0002,共7页化学物理学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China （No.20405013）.

摘　　要：A new bovine serum albumin （BSA） surface imprinting method was developed by the incorporation of quantum dots （QDs） into molecularly imprinted polymers （MIP）, which can offer shape selectivity. Preparation and adsorption conditions were optimized. Physical appearance of the QDs and QDs-MIP particles was illustrated by scanning electron microscope images. Photoluminescence emission of CdS was quenched when rebinding of the template.The quenching of photoluminescence emissions is presumably due to the fluorescence resonance energy transfer between quantum dots and BSA template molecules. The adsorption is compiled with Langmuir isotherm, and chemical adsorption is the rate-controlling step.The maximum adsorption capacity could reach 226.0 mg/g, which is 142.4 mg/g larger than that of undoped BSA MIP. This study demonstrates the validity of QDs coupled with MIP technology for analyzing BSA.

关 键 词：Quantum dots Molecularly imprinted polymer Bovine serum albumin Langmuir isotherm 

分 类 号：O[理学]