Journal
NANO LETTERS
Volume 9, Issue 5, Pages 2073-2076Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl900470p
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Funding
- Israel Science Foundation
- Converging Technologies Project
- Israel Ministry of Defense
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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.
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