Phase-Changing Nanomaterials (IMAGE) DOE/Brookhaven National Laboratory Caption Scientists use DNA strands to trigger phase changes in nanomaterials. Credit Brookhaven National Laboratory Usage Restrictions OK for use about this research. 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.