A unique pH-driven Förster resonance energy transfer (FRET) based biosensor emission by a pyrazoline-doxorubicin pair has been deciphered with a bioimaging application in a live HepG2 cell whereas conformational switching of both molecules at elevated pH reveals a fascinating twist (FRET-OFF) via strong fluorescent exciplex formation.
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| http://dx.doi.org/10.1039/c3cp54527j | DOI Listing |
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