Abstract
A new fluorescent probe RY was synthesized for the detection of Au3+ ions based on a rhodamine B derivative. The fluorescent probe showed good selectivity and sensitivity to Au3+ ions. Obvious color and fluorescence changes could be observed with the naked eye while the fluorescent probe reacted with the Au3+ ions. The detection limit of the probe was determined to be 36 ppb by the fluorescence titration; the excellent linear relationship suggests that the probe is potentially useful for quantitative detection of Au3+ in vitro. We also demonstrated its bioimaging application in both living cells and mice; this was the first time that a fluorescent probe was successfully applied to imaging Au3+ in living animals.
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Song, F., Ning, H., She, H. et al. A turn-on fluorescent probe for Au3+ based on rodamine derivative and its bioimaging application. Sci. China Chem. 57, 1043–1047 (2014). https://doi.org/10.1007/s11426-014-5107-x
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DOI: https://doi.org/10.1007/s11426-014-5107-x