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Shark Skin and Cicada Wings Inspire New Antimicrobial Cutting Boards

Cutting-edge kitchen safety gets a boost thanks to nature's bacteria-resistant strategies.

Jenny Lehmann
ByJenny Lehmann
Inspired by the naturally antimicrobial textures of cicada wings and shark skin, micro- and nanoscale textures at the scale of bacterial cells make it difficult for bacteria to attach. They also change the water-repellent properties of the surface, a key factor for bacterial growth.Credit: Sebastiampillai Raymond

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Everyone knows that maintaining a clean kitchen is essential for safe food preparation. Failing to properly sanitize utensils after use can lead to foodborne illnesses from bacterial growth. Alongside dish sponges, cutting boards — particularly those used for raw meat — are hotspots for bacteria.

Instead of relying solely on human-devised cleaning methods to combat bacterial buildup, researchers turned to nature for solutions. They found inspiration in the antimicrobial properties of shark skin and cicada wings.

Scientists from the Hopkirk Research Institute, the Food Safety Science and Research Centre, and Applied Technologies Group in New Zealand collaborated on a study that used lasers to create antibacterial surfaces. By mimicking the micro- and nanostructures of shark skin and cicada wings, they developed a novel approach to preventing bacterial adhesion. Their findings were published in the Journal of Laser Applications.

The study focused on Brochothrix thermosphacta and Escherichia coli (E. coli), two ...

  • Jenny Lehmann

    Jenny Lehmann

    Jenny Lehmann is an assistant editor at Discover Magazine who writes articles on microbiology, psychology, neurology, and zoology, and oversees the Piece of Mind column of the print issue.

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