Hybrid Nanotech Device (IMAGE) Istituto Italiano di Tecnologia - IIT Caption This is a confocal image of 3-D bio-hybrid microfluidic blood-brain barrier model: endothelial cells have been stained in blue for nuclei, in red for f-actin, in green for tight junctions. Credit IIT-Istituto Italiano di Tecnologia Usage Restrictions with appropriate credits and captions 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.