We devised a rhodamine-based fluorescent probe functionalized with a guanidinium moiety, which both operates efficiently in pure aqueous media and displays a selective fluorescence response to Au3+ ions. We also demonstrated the successful fluorescence imaging of Au3+ within living cells and a vertebrate species, the zebrafish.
E. Karakuş, G. Cakan-Akdogan and M. Emrullahoğlu, Anal. Methods, 2015, 7, 8004 DOI: 10.1039/C5AY01581B
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