![tert-butyl 8-benzyl-2,8-diazaspiro[4.5]decane-2-carboxylate structure](https://static.chemtradehub.com/structs/336/336191-16-3-bb55.webp "tert-butyl 8-benzyl-2,8-diazaspiro[4.5]decane-2-carboxylate structure")
tert-butyl 8-benzyl-2,8-diazaspiro[4.5]decane-2-carboxylate
CAS Number:
336191-16-3
Molecular Formula:
C20H30N2O2
Ultrasensitive Pb2+ detection based on fluorescence resonance energy transfer (FRET) between quantum dots and gold nanoparticles
Literature Information
Publication Date
2009-04-01
DOI
10.1039/B822744F
Impact Factor
4.616
Authors
Xin Wang, Xiangqun Guo
View Original
Abstract
Positively charged CdTe-QDs capped with cysteamine (CA-CdTe-QDs) and negatively charged AuNPs capped with 11-mercaptoundecanoic acid (MUA-AuNPs) have been prepared. They are water-soluble and biocompatible. An assay for the determination of Pb2+ has been proposed based on the modulation in FRET efficiency between QDs and AuNPs in the presence of Pb2+, which inhibits the interaction of the QD-AuNP assembly. This method is easy to operate and with remarkably high sensitivity. Under the optimum conditions, the response is linearly proportional to the concentration of Pb2+ in the range 0.22–4.51 ppm, and the detection limit is found to be 30 ppb of Pb2+ due to the superior fluorescence properties of QDs. The mechanism of this strategy is also discussed.
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Source Journal
Analyst
CiteScore:
7.8
Self-citation Rate:
5.6%
Articles per Year:
653
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
Recommended Compounds
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(1R,5R)-3-{[(2-Methyl-2-propanyl)oxy]carbonyl}-3-azabicyclo[3.1.0]hexane-1-carboxylic acid
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Molecular Formula:
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