Diagram of the Smartphone Virus Scanner (image) University of Tokyo Share Print E-Mail Caption The virus-containing cavities are 4.5 micrometers across and 9 micrometers apart. Credit © 2019 Minagawa et al. Usage Restrictions © 2019 Minagawa et al. Share Print E-Mail 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.