Ratiometric O2 sensing based on selective self-sensitized photooxidation of donor-acceptor fluorophores.


Department of Chemistry, University of Liverpool, Donnan Lab, G31, Crown St., Liverpool, L697ZD GB, UK. [Email]


We report a series of organic fluorophores that undergo selective self-sensitized photooxidation upon light irradiation in air accompanied by a change of fluorescence from yellow to blue on the seconds timescale. The distinct emission changes allow the ratiometric quantitation of O2 concentration.

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