A cell phone microscope. (IMAGE) Emory University Caption The high speed of the rolling DNA-based motors allow a simple smart phone microscope to capture their motion through video. Credit Salaita Lab, Emory University Usage Restrictions Must include credit. License Original 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.