Synthesis of stable luminescent microspheres by a simple method

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....

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Veröffentlicht in:Journal of colloid and interface science 2007-03, Vol.307 (2), p.563-566
Hauptverfasser: Liu, Qiaoling, Liu, Xuanming, Zhu, Yonghua, Tang, Dongying
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container_title Journal of colloid and interface science
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creator Liu, Qiaoling
Liu, Xuanming
Zhu, Yonghua
Tang, Dongying
description 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. A simple method of preparing luminescent microspheres was demonstrated. These microspheres were very stable under physiological conditions and can keep their bright fluorescence for 2 weeks.
doi_str_mv 10.1016/j.jcis.2006.11.048
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subjects Cadmium Compounds
CdSe/CdS
Chemistry
Exact sciences and technology
Fluorescence
General and physical chemistry
Luminescence
Metal Nanoparticles
Microscopy, Fluorescence
Microsphere
Microspheres
Polylysine
Quantum Dots
Selenium Compounds
Spectrometry, Fluorescence
Sulfides
title Synthesis of stable luminescent microspheres by a simple method
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