SIMBAS Photo (image) University of California - Berkeley Caption This is a photograph of the stand alone 1x2 inch SIMBAS chip simultaneously processing five separate whole-blood samples by separating the plasma from the blood cells and detecting the presence of biotin, or vitamin B7. Credit Ivan Dimov photo Usage Restrictions All rights reserved. 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.