Optical trapping setup (IMAGE) Optica Caption Schematic of the optical setup used for optical trapping (a) with an image of the fluorescent nanodiamond (FND) inside a leukemia cell (b). Credit Fatemeh Kalantarifard, Technical University of Denmark Usage Restrictions None 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.