Bacterial architects. [square] (IMAGE) Institute of Science and Technology Austria Caption Scientists at ISTA forge soft materials from “Lego”-like building blocks with the energy produced by swimming bacteria. Illustration Credit © ISTA Usage Restrictions Free to use when reporting about ISTA. License Original 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.