Synthesis and characterization of poly(lactic acid)-conjugated CdTe quantum dots

被引：5
|
作者：
Xiao, Zhen [1 ]
Liu, Dong [1 ]
Tang, Zhidao [1 ]
Li, Hongli [1 ]
Yuan, Minglong [1 ]
机构：
[1] Yunnan Minzu Univ, Engn Res Ctr Biopolymer Funct Mat Yunnan, Kunming 650500, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 148卷
基金：
中国国家自然科学基金;
关键词：
Nanoparticle; Luminescence; CdTe quantum dots; Polymerization; Surface grafting;
D O I：
10.1016/j.matlet.2015.01.164
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Novel poly(lactic acid)-conjugated CdTe quantum dots (PLA-conjugated CdTe QDs) were synthesized by surface grafting through living polymerization of lactic acid O-carboxyanhydride (LacOCA) on CdTe quantum dots. The PLA-conjugated CdTe QDs were spherical nanoparticle, and they were relatively uniform with a diameter of 4.5 nm. The PLA-conjugated CdTe QDs showed strong blue fluorescence emission in vitro, and their luminescence was stable in aqueous solution for more than 60 d. Furthermore, these QDs showed low cytotoxicity towards HaCaT cells in vitro. The results suggest potential applications for PLA-conjugated CdTe QDs in biological staining and diagnostics. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：126 / 129
页数：4
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