A 14-year-old californian named Kara Fan has won the title of “America’s Top Young Scientist” for his invention of a nano-silver liquid bandage, foreign media reported. In the annual 3M Young Scientist Challenge, Kara Fan beat the remaining nine finalists to win $25,000 in prize money for its nanoparticle liquid bandages, the report said.
Fan is understood to have started developing her liquid bandages in April 2019, using lemon leaves, silver nitrate and a water-soluble polymer to combat the overuse of antibiotics. The spray-paintable bandage, which she invented, creates a thin film to protect the wound when it dries on a person’s skin, breaking the cell wall and killing the bacteria on the skin.
Overuse of antibiotics has led to antibiotic-resistant infections, and about 2 million people in the United States are infected with bacteria each year, according to the Centers for Disease Control and Prevention.
The Unedrepute, the unwanted disease or “superbug” could kill 10 million people worldwide by 2050, the United Nations reports.
Replacing copper acid against bacteria with silver nitrate was the main reason Fan won the prize.