A simple chemical etching strategy to generate “ion-imprinted” sites on the surface of quantum dots for selective fluorescence turn-on detecting of metal ions

Peng Wu; Xiu-Ping Yan

doi:10.1039/C0CC01762K

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A simple chemical etching strategy to generate “ion-imprinted” sites on the surface of quantum dots for selective fluorescence turn-on detecting of metal ions†

Peng Wu^a and Xiu-Ping Yan*^a

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* Corresponding authors

^a Research Center for Analytical Sciences, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
E-mail: xpyan@nankai.edu.cn
Fax: +86 2223506075
Tel: +86 2223506075

Abstract

A simple general chemical etching strategy is developed to generate “ion-imprinted” sites on the surface of QDs for subsequent selective signal turn-on detection of metal ions.

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Supplementary files

Experimental details; characterization of QDs; the influence of Cd ²⁺ on the fluorescence of MPA-CdTe QDs; electrophoregrams of Cd ²⁺, mixture of Cd ²⁺ and MPA and mixture of Cd ²⁺ and EDTA; influence of EDTA concentration and sample pH on the detection of Cd ²⁺; APDC-etched CdTe QDs as a probe for Cd ²⁺; EDTA-etched ZnS and ZnSe QDs for detection of Zn ²⁺. PDF (3396K)

Article information

DOI: https://doi.org/10.1039/C0CC01762K
Article type: Communication
Submitted: 06 Jun 2010
Accepted: 04 Aug 2010
First published: 23 Aug 2010

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Chem. Commun., 2010,46, 7046-7048

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A simple chemical etching strategy to generate “ion-imprinted” sites on the surface of quantum dots for selective fluorescence turn-on detecting of metal ions

P. Wu and X. Yan, Chem. Commun., 2010, 46, 7046 DOI: 10.1039/C0CC01762K

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Chemical Communications

A simple chemical etching strategy to generate “ion-imprinted” sites on the surface of quantum dots for selective fluorescence turn-on detecting of metal ions†

Abstract

Supplementary files

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A simple chemical etching strategy to generate “ion-imprinted” sites on the surface of quantum dots for selective fluorescence turn-on detecting of metal ions

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