Gold nanoparticles target tight junction (IMAGE) University of Texas at Dallas Caption Researchers synthesized gold nanoparticles to target the tight junction specifically and demonstrated that transcranial picosecond laser stimulation of the nanoparticles post-intravenous injection increases the permeability of the blood-brain barrier. Credit Nano Letters 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.