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Durham University

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Chisholm, David, Lamb, Rebecca, Pallett, Tommy, Affleck, Valerie, Holden, Claire, Marrison, Joanne, O'Toole, Peter, Ashton, Peter, Newling, Katherine, Steffen, Andreas, Nelson, Amanda, Mahler, Christoph, Valentine, Roy, Blacker, Thomas, Bain, Angus John, Girkin, John M, Marder, Todd B, Whiting, Andrew & Ambler, Carrie A (2019). Photoactivated cell-killing involving a low molecular weight, donor-acceptor diphenylacetylene. Chemical Science 10(17): 4673-4683.

Author(s) from Durham


Photoactivation of photosensitisers can be utilised to elicit the production of ROS, for potential therapeutic applications, including the destruction of diseased tissues and tumours. A novel class of photosensitiser, exemplified by DC324, has been designed possessing a modular, low molecular weight ‘drug-like’ structure which is bioavailable and can be photoactivated by UV-A/405 nm or corresponding two-photon absorption of near-IR (800 nm) light, resulting in powerful cytotoxic activity, ostensibly through the production of ROS in a cellular environment. A variety of in vitro cellular assays confirmed ROS formation and in vivo cytotoxic activity was exemplified via irradiation and subsequent targeted destruction of specific areas of a zebrafish embryo.