Disease-Sensing Nanomaterials (IMAGE) Advanced Science Research Center, GC/CUNY Caption Peptides spontaneously form spherical or worm-like nanostructures that can be morphed or broken down by enzymes overexpressed in cancer cells. By controlling the shape and charge of the nanostructures, scientists can predict the rate of enzyme interaction which can be used for controlled release of drugs. Credit Jiye Son, originally appeared in <em>ACS Nano</em> online. Usage Restrictions To be used only in conjunction with this study. 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.