Silk Masks (IMAGE) University of Cincinnati Caption UC postdoctoral researcher Adam Parlin holds up a silk face mask. A UC study found that silk masks might work better at repelling COVID-19 than cotton or synthetic masks. Credit Joseph Fuqua II/UC Creative Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.