文献类型：期刊文献

英文题名：Encapsulation of Quantum Dot Clusters in Stimuli-Responsive Spherical Polyelectrolyte Brushes

作者：Liu, Xiaochi[1];Xu, Yisheng[1,2];Ma, Shijian[3];Ma, Yunfei[3];Ahmad, Ayyaz[1];Tian, Yuchuan[1];Zhong, Xinhua[3];Guo, Xuhong[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Zhejiang Univ Sci & Technol, Sch Biol & Chem Engn, Zhejiang Prov Key Lab Chem & Biochem Proc Technol, Hangzhou 310023, Zhejiang, Peoples R China;[3]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：53

期号：28

起止页码：11326

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20143017983547);WOS:【SCI-EXPANDED(收录号:WOS:000339227700014)】；

基金：We gratefully acknowledge the support of the National Natural Science Foundation of China (21306049 and 51273063), the Fundamental Research Funds for the Central Universities (222201314029), and the higher school specialized research fund for the doctoral program to this work (20110074110003).

语种：英文

外文关键词：Spheres - Semiconductor quantum dots - Emulsification - Nanocrystals - Polyelectrolytes - Fluorescence

摘要：Novel fluorescence-labeled spherical polyelectrolyte brushes consisting of a fluorescent polystyrene (PS) nanocomposite core and a poly(acylic acid) (PAA) brush shell were successfully prepared. Quantum dots (QDs) were well confined in the PS core through hybrid emulsion polymerization. PAA chains were then grafted onto the surface of the fluorescent PS core to form a brush structure through photoemulsion polymerization. The obtained fluorescent spherical polyelectrolyte brushes are highly pH sensitive in addition to their excellent dispersibility in water. Fluorescent nanoclusters were introduced into spherical polyelectrolyte brushes to acquire high sensitive detection in the applications of spherical polyelectrolyte brushes as catalyst tracer, as biosensor, and in protein coding.