Scientists Invent Germ-Repellent Shrink Wrap

Researchers from McMaster University in Hamilton, Canada, have developed a self-cleaning plastic wrap that repels bacteria, according to a university news release.

The plastic covering can be shrink wrapped onto doorknobs, railings, countertops, and other high-touch surfaces in hospitals, kitchens, and other locations that are common breeding grounds for superbugs such as Methicillin-resistant Staphylococcus aureus (MRSA). Scientists also believe the new material could be used to package food, stopping the spread of E. coli, salmonella, listeria, and other food-borne pathogens.

The covering is textured with chemically treated, microscopic “wrinkles” that block out external molecules, causing water, blood, and bacteria to bounce when they contact the surface. Scientists tested the plastic material by covering it with MRSA and Pseudomonas (a bacteria commonly found in water and soil) then taking microscope images of the material. The images showed virtually no traces of bacteria on the wrap.

The researchers are hoping to work with a partner to develop commercial applications for their invention.