Smart Wearable Patches Using Light-Controlled Activation and Delivery of Photoswitchable Antimicrobial Peptides
Date
2023
Authors
Kalyvas, J.T.
Marina, P.F.
Stachura, D.L.
Horsley, J.
Abell, A.D.
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Advisors
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Journal article
Citation
Chemistry: A European Journal, 2023; 29(46):1-8
Statement of Responsibility
John T. Kalyvas, Paula Facal Marina, Damian L. Stachura, John R. Horsley, and Andrew D. Abell
Conference Name
Abstract
A novel strategy to treat Staphylococcus aureus (S. aureus) skin infections is presented, where UV light is used to facilitate concomitant light-controlled activation and delivery of an antimicrobial therapeutic agent. Specifically, a new photoswitchable gramicidin S analogue was immobilized onto a polymeric wearable patch via a photocleavable linker that undergoes photolysis at the same wavelength of light required for activation of the peptide. Unlike toxic gramicidin S, the liberated active photoswitchable peptide exhibits antimicrobial activity against S. aureus while being ostensibly non-haemolytic to red blood cells. Moreover, irradiation with visible light switches off the antimicrobial properties of the peptide within seconds, presenting an ideal strategy to regulate antibiotic activity for localized bacterial infections with the potential to mitigate resistance.
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© 2023 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH