Red blood cells (IMAGE) Optica Caption To demonstrate the new photoacoustic endomicroscopy device, the researchers used it to acquire high-resolution images of mouse red blood cells. Credit Tianrui Zhao from King’s College London 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.