Iranian Scientists Create ‘Self-Cleaning Surface that Repels Superbugs’

Saturday, December 14, 2019 - 10:43

Iranian researchers have succeeded to create a self-cleaning surface that can repel all forms of bacteria and prevent the transfer of superbugs has been developed.

According to the report, a team of researchers at McMaster University, led by engineers Leyla Soleymani and Tohid Didar, who collaborated with colleagues from McMaster's Institute for Infectious Disease Research and the McMaster-based Canadian Centre for Electron Microscopy, developed a self-cleaning surface that can repel all forms of bacteria.

The new plastic surface—a treated form of conventional transparent wrap—can be shrink-wrapped onto door handles, railings, IV stands and other surfaces that can be magnets for bacteria.

The treated material is also ideal for food packaging, where it could stop the accidental transfer of bacteria such as E. coli, Salmonella and listeria from raw chicken, meat and other foods, as described in a paper published by the journal ACS Nano.

Inspired by the water-repellent lotus leaf, the new surface works through a combination of nanoscale surface engineering and chemistry. The surface is textured with microscopic wrinkles that exclude all external molecules. A drop of water or blood, for example, simply bounces away when it lands on the surface. The same is true for bacteria.

"We can see this technology being used in all kinds of institutional and domestic settings," Didar says. "As the world confronts the crisis of anti-microbial resistance, we hope it will become an important part of the anti-bacterial toolbox."


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