β-Cyclodextrin-Modified CdSe/ZnS Quantum Dots for Sensing and Chiroselective Analysis

被引：226

作者：

Freeman, Ronit ^{[1
]}

Finder, Tali ^{[1
]}

Bahshi, Lily ^{[1
]}

Willner, Itamar ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

来源：

NANO LETTERS | 2009年 / 9卷 / 05期

基金：

以色列科学基金会;

关键词：

RESONANCE ENERGY-TRANSFER; LIQUID-CHROMATOGRAPHIC SEPARATION; ENANTIOMERS; DERIVATIVES; SENSORS;

D O I：

10.1021/nl900470p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

beta-Cyclodextrin (beta-CD)-functionalized CdSe/ZnS quantum dots (QDs) are used for optical sensing and chiroselective sensing of different substrates using a fluorescence resonance energy transfer (FRET) or an electron transfer (ET) mechanisms. The FRET between the ODs and Rhodamine B incorporated in the beta-CD receptor sites is used for the competitive analysis of adamantanecarboxylic acid and of p-hydroxytoluene. Also, the dye-incorporated beta-CD-modified QDs are used for the chiroselective optical discrimination between D,L-phenylalanine and D,L-tyrosine. The receptor-functionalized QDs are also implemented for the optical detection of beta-nitrophenol using an ET quenching route.

引用

页码：2073 / 2076

页数：4

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