期刊
ANALYTICAL METHODS
卷 5, 期 17, 页码 4321-4324出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ay40907d
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资金
- National Natural Science Foundation of China [21175065, 21205064]
- Creative Research Group [21121091]
- National Basic Research Program of China [2011CB933502]
- Fund of State Key Laboratory of Analytical Chemistry for Life Science [SKLACLS1208]
The improvement of analytical accuracy and S/N (signal to noise ratio) based on conventional homogeneous fluorometry was always limited because of high background noise from complicated sample ingredients, buffer solution and lysates. Herein, a self-assembled Mn-doped ZnSe quantum dot-methyl viologen nanohybrid as an OFF-ON fluorescent probe is presented for the time-resolved fluorescence detection of tiopronin, showing high S/N and selectivity with a low detection limit of 0.1 mu mol L-1 and a linear response ranging from 4 to 160 mu M. We anticipate that this probe will have promising applications for sensitive biosensing and drug analysis.
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