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Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic

Vorotnikova, Natalia A.; Alekseev, Alexander Y.; Vorotnikov, Yuri A.; Evtushok, Darya V.; Molard, Yann; Amela-Cortes, Maria; Cordier, Stéphane; Smolentsev, Anton I.; Burton, Christian G.; Kozhin, Peter M.; Zhu, Patricia; Topham, Paul D.; Mironov, Yuri V.; Bradley, Mark; Efremova, Olga A.; Shestopalov, Michael A.

Authors

Natalia A. Vorotnikova

Alexander Y. Alekseev

Yuri A. Vorotnikov

Darya V. Evtushok

Yann Molard

Maria Amela-Cortes

Stéphane Cordier

Anton I. Smolentsev

Christian G. Burton

Peter M. Kozhin

Patricia Zhu

Paul D. Topham

Yuri V. Mironov

Mark Bradley

Olga A. Efremova

Michael A. Shestopalov



Abstract

Finding methods that fight bacterial infection or contamination, while minimising our reliance on antibiotics is one of the most pressing needs of this century. Although the utilisation of UV-C light and strong oxidising agents, such as bleach, are still efficacious methods for eliminating bacterial surface contamination, both methods present severe health and/or environmental hazards. Materials with intrinsic photodynamic activity (i.e. a material's ability upon photoexcitation to convert molecular oxygen into reactive oxygen species such as singlet oxygen), which work with light within the visible photomagnetic spectrum could offer a significantly safer alternative. Here we present a new, bespoke molybdenum cluster (Bu4N)2[Mo6I8(n-C7F15COO)6], which is both efficient in the generation of singlet oxygen upon photoirradiation and compatible with the fluoropolymer (F23-L) known for its good oxygen permeability. Thus, (Bu4N)2[Mo6I8(n-C7F15COO)6]/F23-L mixtures have been solution-processed to give homogenous films of smooth and fibrous morphologies and which displayed high photoinduced antibacterial activity against four common pathogens under visible light irradiation. These materials thus have potential in applications ranging from antibacterial coatings to filtration membranes and air conditioners to prevent spread of bacterial infections.

Journal Article Type Article
Publication Date 2019-08
Journal Materials Science and Engineering: C
Print ISSN 0928-4931
Publisher Elsevier
Peer Reviewed Peer Reviewed
Pages 110150
APA6 Citation Vorotnikova, N. A., Alekseev, A. Y., Vorotnikov, Y. A., Evtushok, D. V., Molard, Y., Amela-Cortes, M., …Shestopalov, M. A. (2019). Octahedral molybdenum cluster as a photoactive antimicrobial additive to a fluoroplastic. Materials Science and Engineering: C, 110150. https://doi.org/10.1016/j.msec.2019.110150
DOI https://doi.org/10.1016/j.msec.2019.110150
Keywords Mechanical Engineering; General Materials Science; Mechanics of Materials; Condensed Matter Physics
Publisher URL https://www.sciencedirect.com/science/article/pii/S0928493119322015?via%3Dihub
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