Synthesis of stable luminescent microspheres by a simple method

被引:7
作者
Liu, Qiaoling [1 ]
Liu, Xuanming [1 ]
Zhu, Yonghua [1 ]
Tang, Dongying [1 ]
机构
[1] Hunan Univ, Coll Life Sci & Biotechnol, Changsha 410082, Peoples R China
关键词
microsphere; quantum dots; CdSe/CdS; polylysine; fluorescence;
D O I
10.1016/j.jcis.2006.11.048
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An easy procedure for preparing microspheres containing CdSe/CdS core-shell quantum dots (QDs) was demonstrated. The luminescent properties of this microsphere were characterized by fluorescence microscopy and fluorescence spectrophotometry. Scanning electron microscopy was also used in this study. Laser confocal microscopy was carried out to describe the distribution of QDs in the microsphere. Especially, the stability of microspheres was investigated. It was found that the getting microsphere was very stable in water and showed values for physiological conditions. The inherent stability of the spheres, as well as their photostability, allows them to be used in biological applications. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:563 / 566
页数:4
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