The Device in Operation (IMAGE) Universitat Rovira i Virgili Caption The device in operation: a fiber optic shines a blue light on the sample, highlighting the cells as they flow from left to right. Credit © URV 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.