(IMAGE) Universitat Politècnica de València Caption UPV researchers J.M. Garcia Gómez, Mª del Mar Álvarez and Elies Fuster Credit UPV Usage Restrictions No restrictions. License Public Domain 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.