The Advantage of Smaller Nanoparticles (image) University of Tokyo Share Print E-Mail Caption Nanoparticles are typically too big to permeate some types of tissues (top). The researchers' new nanomachine is much smaller so can pass through these tissues (bottom). Credit © 2019 Kanjiro Miyata Usage Restrictions © 2019 Kanjiro Miyata 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.