Toward Singlet Oxygen Delivery at a Measured Rate:
A Self-Reporting Photosensitizer
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Abstract
A Bodipy-based
energy transfer cassette with a singlet oxygen reactive
linker between the donor and acceptor modules has an interesting emergent
property, if the acceptor module is also a photosensitizer. Singlet
oxygen produced by the photosensitizer reacts rapidly with the molecule
itself to liberate the energy donor, resulting in an enhanced fluorescence
emission. The result is a self-reporting photosensitizer providing
an assessment of the singlet oxygen production rate under the operational
conditions