A new, nontoxic powder made from a common mineral could be the answer to quickly disinfecting water and surfaces. Researchers at the University of Tokyo have developed a powder made from magnesium oxide that, when exposed to sunlight, can kill bacteria in just 30 seconds. This could be a game changer for water treatment and hygiene in areas with limited access to clean water and disinfectants. The powder can be used in both indoor and outdoor environments, and is both inexpensive and environmentally friendly.

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source: Phys.org