Machines (2 of 3) (IMAGE) Rice University Caption A sequence of images taken over 10 minutes shows a human prostate cell under attack by motorized molecules. The cell, tagged with a green fluorescent protein, is made permeable by the nanomachines, which drill through its lipid bilayer membranes. The bottom images clearly show blebbing (bubbling) of the membrane as cytoplasm leaks out of the cell. Credit Robert Pal/Durham University Usage Restrictions None 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.