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- W2890840993 abstract "Herein, a novel quinoline-based fluorescent probe DQPH has been developed for ratiometric detection of subtle pH fluctuation in biosystem. Upon altering the pH from 4.50 to 9.00, the emission spectra exhibit a large hypsochromic shift (57 nm) and the ratio of fluorescence intensity (F531 nm/F588 nm) changes from 0.30 to 1.36 with an ideal pKa value of 7.18 and a linear pH variation range of 6.35-8.00. The ratiometric response is attributed to the protonation-activable resonance charge transfer (PARCT) process, which has been proved by 1H NMR and NOESY experiment. This probe displayed good solubility, low cytotoxicity, anti-interference capability and reversible pH sensing. Furthermore, DQPH was successfully applied for monitoring pH changes in living cells." @default.
- W2890840993 created "2018-09-27" @default.
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- W2890840993 date "2019-01-01" @default.
- W2890840993 modified "2023-09-26" @default.
- W2890840993 title "Quinoline-based ratiometric fluorescent probe for detection of physiological pH changes in aqueous solution and living cells" @default.
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- W2890840993 doi "https://doi.org/10.1016/j.talanta.2018.09.026" @default.
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