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Journal of Nanoparticle Research
Published in: Journal of Nanoparticle Research 5/2010

01-06-2010 | Research Paper

A feasible method of improving the quantum yield of CdTe/CdS quantum dots by the first heating–cooling cycle and their application in cancer cell recognition

Authors: Jian-Hao Wang, Hai-Li Zhang, Yong-Qiang Li, Jiao-Ru Qian, Hai-Qiao Wang, Ting-Ting Xu, Yuan-Di Zhao

Published in: Journal of Nanoparticle Research | Issue 5/2010

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Abstract

In this article, water-soluble CdTe/CdS quantum dots (QDs) were synthesized in aqueous solution with captosuccinic acid as stabilizer. The absorption and fluorescence spectra showed that the as-prepared QDs had good optical properties. It was observed that the quantum yield (QY) of QDs was greatly increased after a heating–cooling cycle (from 22 to 41%). Then, the QDs were used to prepare fluorescent probes. The experiment results showed that the transferrin (Tf) could conjugate to QDs effectively and the HepG2 cells could be recognized successfully. This study is of great significance for the preparation of high-quality QDs and their applications in life science.
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Metadata
Title
A feasible method of improving the quantum yield of CdTe/CdS quantum dots by the first heating–cooling cycle and their application in cancer cell recognition
Authors
Jian-Hao Wang
Hai-Li Zhang
Yong-Qiang Li
Jiao-Ru Qian
Hai-Qiao Wang
Ting-Ting Xu
Yuan-Di Zhao
Publication date
01-06-2010
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 5/2010
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-010-9866-9

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