Journal
ANALYTICAL METHODS
Volume 8, Issue 23, Pages 4736-4743Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ay01033d
Keywords
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Funding
- National Natural Science Foundation of China [21374078, 51303132]
- Tianjin Research Program of Application Foundation and Advanced Technology [15JCYBJC18100, 15JCTPJC59200]
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A simple one-step hydrothermal method was designed to synthesize fluorescent carbon nanodots (CNDs). The resulting CNDs exhibited excellent properties such as good solubility, superior photo-stability and low toxicity. Significantly, the CNDs were found to be an effective fluorescence sensing platform for turn-on detection of glutathione (GSH). The initial fluorescence of CNDs was quenched through an electron transfer process in the presence of dopamine, while the quenched fluorescence was enhanced with the further addition of GSH. Moreover, it showed a good linear relationship between GSH concentration and the relative fluorescence intensity of the system. Significantly, this sensing platform successfully detected GSH in biological fluids, indicating its potential applications in the field of biology.
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