Hole-Forming Nanomachines (IMAGE) University College London Caption These are holes forming. Credit Edward S. Parsons et al. UCL Usage Restrictions Credit: Edward S. Parsons et al. UCL 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.