Designer multi-functional comb-polymers for surface engineering of quantum dots on the nanoscale

被引:30
作者
Janczewski, Dominik [1 ]
Tomczak, Nikodem [1 ]
Khin, Yin Win [1 ]
Han, Ming-Yong [1 ,2 ]
Vancso, G. Julius [1 ]
机构
[1] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
[2] Natl Univ Singapore, Div Bioengn, Fac Engn, Singapore 117576, Singapore
关键词
Quantum dot (QD); Amphiphilic polymer; Polymeric micelle; Surface engineering; Phase transfer; AMPHIPHILIC POLYMER; NANOCRYSTALS; CDSE; NANOPARTICLES; CDTE; LUMINESCENCE; PROBES; SHELL; SIZE;
D O I
10.1016/j.eurpolymj.2008.08.047
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Synthesis, characterization and cell-biomarker applications for a novel series of comb-copolymers featuring hydrophobic amide side groups, carboxylates and other functionalities such as polymerizable side chains and PEG oligomers are reported. When used as polymer ligand shell for trioctylphosphine oxide (TOPO) coated quantum dots (QDs) these copolymers effectively solubilise CdSe/ZnS QDs in water. A systematic study was carried out to find the relation between the molecular structure of the copolymers, their ability to coat the QDs, and to suspend the nanocrystals in water. To demonstrate potential applications, highly luminescent QD/polymer assemblies were internalized into living and fixed cells. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3 / 9
页数:7
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