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A “turn-on-and-off” pH sensitive BODIPY fluorescent probe for imaging E. coli cells

We report fluorescent turn-on-and-off pH BODIPY probes which show drastic shift in pKa values upon introducing the electron withdrawing substituents on the meso-phenyl ring. The sensors utilize 4-amino- and 4-hydroxyl groups as proton receptors and works by intramolecular photoinduced electron transfer (PET)

Autoren:   Dijo Prasannan; Chellaiah Arunkumar
Journal:   New Journal of Chemistry
DOI:   10.1039/C7NJ04313A
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