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Updated: Aug 11, 2026
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PET modulated fluorescent sensing from the BF2 chelated azadipyrromethene platform
Michael J Hall1, Lorcan T Allen, Donal F O'Shea
1Centre for Synthesis and Chemical Biology, Conway Institute, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
Abstract:
A convergent building block synthesis has been applied to new off/on photoinduced electron transfer (PET) modulated fluorescent sensors which are based on a BF(2) chelated tetraarylazadipyrromethene platform and operate in the biomedically important red region of the visible spectrum. Incorporation of diethylamine and morpholine receptors facilitates off/on microenvironment polarity and pH sensing. Aqueous formulation and in vitro cellular imaging demonstrates their potential for intracellular sensing.
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