Researchers have created an "intranasal mask" that can intercept and inactivate viruses. The mask is a temperature-sensitive gel made of chimeric cell vesicles.
It is liquid at room temperature and can be sprayed into the nasal cavity. The protective layer can prevent viral aerosols from entering the lungs through interception and trapping, and can make the viruses in the viral aerosol lose their ability to infect. "Our research provides a new idea to intercept virus aerosols and trap viruses, thereby preventing viral infection," said Wang Shuang.