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Title of Journal: Ecotoxicology

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Abbravation: Ecotoxicology

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Springer US

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DOI

10.1007/s13197-013-0977-z

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1573-3017

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Preliminary study of interactivity between mercury

Authors: Zhenyu He Honghao Zhu Peijiang Zhou
Publish Date: 2014/10/11
Volume: 23, Issue: 10, Pages: 2030-2034
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Abstract

This paper describes the development of a simplified and rapid method for the aqueous synthesis of quantum dots QDs with CdTe cores and gradient CdS external shells CdTe/CdS QDs aided by microwave irradiation In order to improve the biocompatibility of the CdTe/CdS QDs these QDs were then interacted with carboxymethyl chitosan CMC so as they could be used as fluorescent probes in the aqueous phase As fluorescent probes these modified QDs were successfully used for imaging live MadinDarby canine kidney MDCK cells Then mercury was incubated with the microsystem formed by quantum dots labeled MDCK Fluorescence quenching was occurred in the microsystem after 24 h The microsystem’s fluorescence quenching caused by mercuryII was consistent with the fluorescence quenching equation and displayed a good linearity between the quenched fluorescence intensity of mercuryII The preliminary results indicated that this microsystem can be used for detection of trace amounts of mercury in vivo and interaction process investigation between mercury and cells

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