Protocells (IMAGE) University College London Caption Confocal laser scanning microscopy image of the DNA fibers and nanotubes inside the protocells. Credit Credit: Dr Jonathan Burns / Dr Nishkantha Arulkumaran / DNAFibers.com Usage Restrictions Only with credit and in relation to 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.