Rat Brain Tissue with TIVA Tag (image) University of Pennsylvania School of Medicine Caption This is an image of a rat brain slice loaded with the Arg-Cy3-TIVA tag. Loading of the cells is apparent from the white fluorescence. Credit James Eberwine, Ph.D., Perelman School of Medicine, University of Pennsylvania Usage Restrictions None 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.