Original title: 14-year-old girl invented liquid Band Aid: rated as' top young scientist in the United States'
On November 2, according to foreign media reports, a 14-year-old karafan in California won the title of "top young scientist in the United States" with his nano silver liquid bandage.
The report points out that in the annual 3M young scientist challenge, karafan beat the other nine finalists and won a prize of US $25000 with its nano particle liquid bandage.
It is reported that fan began to develop her liquid bandage in April 2019, using lemon leaves, silver nitrate and a water-soluble polymer to combat the overuse of antibiotics. When the sprayable bandage she invented dries on human skin, it will form a film to protect the wound, break the cell wall and kill bacteria on the skin.
Overuse of antibiotics has led to antibiotic resistant infections. According to the data of the U.S. Centers for Disease Control and prevention, about 2 million people suffer from bacterial infections in the United States every year.
The United Nations reports that if left unchecked, this drug-resistant disease or 'superbug' could kill 10 million people worldwide by 2050.
Using silver nitrate instead of copper acid to fight bacteria is the main reason for fan's final award.