Insect Wings Shred Bacteria on Contact

Mar-08-13 The structure of cicada wings is able to kill bacteria on contact, inspiring a new generation of antibacterial coatings that do not require bioagents.

Cicada wings are covered in tiny, blunt nanopillars that are smaller than the bacteria. When a bacterium comes in contact with the wing, it sticks to the nanopillars and then begins to slowly sag into the spaces between them. Eventually, the bacteria sag to the point that their cell membranes rupture.

Researchers believe a material inspired by the cicada’s wing surface could be used to create an anti-bacterial surface that could be used on medical equipment or public surfaces, such a bus railings or countertops.

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[NATURE.COM]
[PHYS ORG]

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