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- W3092024269 abstract "In this work, a multifunctional ratiometric fluorescence (FL) nanohybrid (CSCDs@DC) was synthesized from chitosan based carbon dots (CSCDs) and dansyl chloride (DC) at room temperature. The CSCDs@DC revealed strong FL intensity, great stability and excellent anti-photobleaching properties. Herein, CSCDs@DC was responsive to pH value in the range of 1.5-4.0 and exhibited color-switchable FL properties between acidic and alkaline environments. In addition, CSCDs@DC showed good selectivity and sensitivity towards Fe3+ ions. A good linear relationship for the Fe3+ ion detection was obtained in the range from 0 μM to 100 μM, with a detection limit of 1.23 μM. What's more, CSCDs@DC can be used as a fluorescent ink. It expressed superior optical properties after 3 months of storage or continuous exposure to UV light for 24 h. This study suggested that CSCDs@DC had potential in the detection of pH and metal ions, as well as showing promising application in the anti-counterfeiting field." @default.
- W3092024269 created "2020-10-15" @default.
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- W3092024269 date "2020-01-01" @default.
- W3092024269 modified "2023-10-15" @default.
- W3092024269 title "Dansyl-modified carbon dots with dual-emission for pH sensing, Fe<sup>3+</sup> ion detection and fluorescent ink" @default.
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- W3092024269 doi "https://doi.org/10.1039/d0ra06097f" @default.
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