Biophysical model of bacterial cell interactions with nanopatterned cicada wing surfaces

Pogodin, Sergey, Hasan, Jafar, Baulin, Vladimir A., Webb, Hayden K., Truong, Vi Khanh, Nguyen, The Hong Phong, Boshkovikj, Veselin, Fluke, Christopher J., Watson, Gregory S., Watson, Jolanta A., Crawford, Russell J., and Ivanova, Elena P. (2013) Biophysical model of bacterial cell interactions with nanopatterned cicada wing surfaces. Biophysical Journal, 104 (4). pp. 835-840.

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Abstract

The nanopattern on the surface of Clanger cicada (Psaltoda claripennis) wings represents the first example of a new class of biomaterials that can kill bacteria on contact based solely on their physical surface structure. The wings provide a model for the development of novel functional surfaces that possess an increased resistance to bacterial contamination and infection. We propose a biophysical model of the interactions between bacterial cells and cicada wing surface structures, and show that mechanical properties, in particular cell rigidity, are key factors in determining bacterial resistance/sensitivity to the bactericidal nature of the wing surface. We confirmed this experimentally by decreasing the rigidity of surface-resistant strains through microwave irradiation of the cells, which renders them susceptible to the wing effects. Our findings demonstrate the potential benefits of incorporating cicada wing nanopatterns into the design of antibacterial nanomaterials.

Item ID: 28318
Item Type: Article (Research - C1)
ISSN: 1542-0086
Funders: Advanced Manufacturing Cooperative Research Centre (AMCRC)
Date Deposited: 17 Jul 2013 05:26
FoR Codes: 02 PHYSICAL SCIENCES > 0299 Other Physical Sciences > 029901 Biological Physics @ 60%
03 CHEMICAL SCIENCES > 0303 Macromolecular and Materials Chemistry > 030304 Physical Chemistry of Materials @ 20%
09 ENGINEERING > 0903 Biomedical Engineering > 090301 Biomaterials @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 60%
97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 20%
97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 20%
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