Journal
RSC ADVANCES
Volume 8, Issue 35, Pages 19786-19790Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra03070g
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Funding
- Natural Science Foundation of China [21275059, 21575044]
- Natural Science Foundation of Fujian Province [2015J01054, 2016J01062]
- Foundation of Graphene Powder & Composite Research Center of Fujian Province [2017H2001]
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In this study, we constructed a new fluorescent sensing for VB12 and investigated the mechanism of vitamin B-12 (VB12) quenching fluorescence of carbon dots (CDs). The fluorescence suppression is attributed to the inner filter effect (IFE) because of the overlap between UV-vis absorption spectrum of VB12 and emission/excitation spectra of CDs. This CDs-based sensor provides obvious advantages of simplicity, convenience, rapid response, high selectivity and sensitivity, which has potential application for the detection of VB12 in the medical and food industry.
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