Misrecognition (VIDEO) Brown University This video is under embargo. Please login to access this video. Caption Receptors on the cell's surface crowd around the nanotube, effectively standing it upright. The cell mistakes the tube for a sphere and begins to engulf it. Credit Huajian Gao Lab, Brown 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.