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- W2897978168 abstract "Abstract A novel peptide fluorescent chemosensor L (FITC-Ahx-GCA-NH2) has been designed and synthesized by solid phase peptide synthesis with Fmoc chemistry which can simultaneously detect Cu2+, Ag+ and S2− ions in aqueous solution and living cells. Both Cu2+ and Ag+ non-competitively quench the fluorescence of L at an excitation wavelength of 490 nm. The S2− anion can restore the quenched fluorescence at 520 nm, completing the fluorescent on-off-on cycle. Moreover, L displayed high selectivity and sensitivity for Cu2+, Ag+ and S2−. The detection limits for Cu2+ and S2− with the L-Cu system were 37 nM and 15 nM, respectively, and for Ag+ and S2− in the L-Ag system the detection limits were 13 nM and 70 nM, respectively. Results of this study suggest that L can be used as a highly selective and sensitive peptide-based fluorescent chemosensor for simultaneous detection of Cu2+, Ag+ and S2− ions in both environmental and biological systems." @default.
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- W2897978168 date "2019-02-01" @default.
- W2897978168 modified "2023-10-01" @default.
- W2897978168 title "A novel fluorescence “on-off-on” peptide-based chemosensor for simultaneous detection of Cu2+, Ag+ and S2−" @default.
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- W2897978168 doi "https://doi.org/10.1016/j.snb.2018.10.038" @default.
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