The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Sensitive and Selective Sensor for Biothiols in the Cell Based on the Recovered Fluorescence of the CdTe Quantum Dots−Hg(II) System
Abstract
Herein, a sensitive and selective sensor for biothiols based on the recovered fluorescence of the CdTe quantum dots (QDs)-Hg(II) system is reported. Fluorescence of QDs could be quenched greatly by Hg(II). In the presence of biothiols, such as glutathione (GSH), homocysteine (Hcy), and cysteine (Cys), however, Hg(II) preferred to react with them to form the Hg(II)-S bond because of the strong affinity with the thiols of biothiols rather than quenching the fluorescence of the QDs. Thus, the fluorescence of CdTe QDs was recovered. The restoration ability followed the order GSH > Hcy > Cys due to the decreased steric hindrance effect. A good linear relationship was obtained from 0.6 to 20.0 micromol L(-1) for GSH and from 2.0 to 20.0 micromol L(-1) for Cys, respectively. The detection limits of GSH and Cys were 0.1 and 0.6 micromol L(-1), respectively. In addition, the method showed a high selectivity for Cys among the other 19 amino acids. Furthermore, it succeeded in detecting biothiols in the Hela cell.
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Cites
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Plasma Homocysteine as a Risk Factor for Dementia and Alzheimer's Disease
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Cited by
Fluorescent and colorimetric probes for detection of thiols
Chen, X., Zhou, Y., Peng, X., & Yoon, J. (2010) · Chemical Society Reviews · doi:10.1039/b925092a · Cited by 1,580
A thiol-specific fluorescent probe and its application for bioimaging
Chen, X., Ko, S.-K., Kim, M. J., Shin, I., & Yoon, J. (2010) · Chemical Communications · doi:10.1039/b925453f · Cited by 289
Metadata
- Authors
- Han, B., Yuan, J., & Wang, E.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-06-05
- Volume
- 81
- Issue
- 13
- Pages
- 5569-5573
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W2159540321
- Cited by
- 316
- References
- 25
- FWCI
- 11.07
- Type
- journal article
- Language
- en
- Open access
- closed
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- Han, B., Yuan, J., & Wang, E. (2009). Sensitive and Selective Sensor for Biothiols in the Cell Based on the Recovered Fluorescence of the CdTe Quantum Dots−Hg(II) System. Analytical Chemistry. https://doi.org/10.1021/ac900769h
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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