Most of us are infected with coronavirus at least once in our lives. This may be a worrying fact for many people, especially those who have only heard of the […]
Two special cell types in the nose have been identified as possible initial infection sites of COVID-19 coronavirus. Scientists have found that goblet cells and ciliated cells in the nose […]
Carbomer is a kind of polymer formed by chemical cross-linking of acrylic acid or acrylate with allyl ether, including polyacrylic acid (homopolymer) and long-chain alkyl alcohol acrylate polymer (copolymer). Its molecular […]