Aluminum plasmonics for self cleaning surfaces: Complete inactivation of multidrug-resistant bacteria with low-intensity visible light (Conference Presentation)

Xiangchao Zhu; Mingran Liu; Michael Trebino; Jin Hwan Park; Fitnat Yildiz; Ahmet A. Yanik

doi:10.1117/12.2546971

10 March 2020 Aluminum plasmonics for self cleaning surfaces: Complete inactivation of multidrug-resistant bacteria with low-intensity visible light (Conference Presentation)

Xiangchao Zhu, Mingran Liu, Michael Trebino, Jin Hwan Park, Fitnat Yildiz, Ahmet A. Yanik

Author Affiliations +

Proceedings Volume 11257, Plasmonics in Biology and Medicine XVII; 1125706 (2020) https://doi.org/10.1117/12.2546971
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

405 nm light is emerging as a safe alternative to UV light for light-based continuous inactivation of drug resistant bacteria in high risk environments (i.e., hospitals). LED manufacturers are introducing 405-nm room lighting solutions for this purpose. However, inactivation efficiencies of commercial 405-nm technologies are still few orders of magnitude lower than those of UV light. Here, we achieve light 500-fold increased inactivation efficiencies with 405-nm light using radiatively coupled aluminum plasmonic nanoantenna arrays and demonstrated nearly complete deactivation of bacteria (%99,995). Our inactivation scheme opens door to continously self-cleaning surface coatings killing multi-drug resistance bacteria using ambient/room lighting.

Conference Presentation

Citation Download Citation

Xiangchao Zhu, Mingran Liu, Michael Trebino, Jin Hwan Park, Fitnat Yildiz, and Ahmet A. Yanik "Aluminum plasmonics for self cleaning surfaces: Complete inactivation of multidrug-resistant bacteria with low-intensity visible light (Conference Presentation)", Proc. SPIE 11257, Plasmonics in Biology and Medicine XVII, 1125706 (10 March 2020); https://doi.org/10.1117/12.2546971

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