A technique developed by Purdue University scientists could allow doorknobs and other metal surfaces to be modified in a way that would kill bacteria on contact.
Researchers have developed a laser treatment technique able to transform metal surfaces and allow them to instantly kill bacteria on contact.
Textures were etched into the surfaces of the metal with lasers, increasing overall surface area and causing the bacteria to make direct contact with the surface, which then killed the pathogens instantly. Copper and titanium metal samples that have been treated to modify texture on the right sides only are displayed with water on both the modified and unmodified sides.Bacteria that have become resistant to antibiotics would be defenseless against the modified surfaces. Coating doorknobs and other surfaces, especially in settings like hospitals, could help greatly reduce new infections.
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