Fig (IMAGE) Innovation Center of NanoMedicine Caption Short time-intervals (15 mins) between injection of biotin-PECAM1 antibody and injection of avidin-decorated nanomachines (avidin-NM) results in avidin-NM targeting to the lung (yellow), brain (blue), heart (red), and pancreas (purple) (a). However, targeting to peripheral organs decreases as a function of time-interval length, while targeting to the brain remains constant (b, c). Consequently, an 8h time-interval results in specific targeting of avidin-NM to the brain, with no targeting seen in peripheral organs (d). Avidin-NM accumulation was visualized in freshly excised brains (e) and fixed brain tissue (f). Credit 2020 Innovation Center of NanoMedicine Usage Restrictions All rights reserved 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.