Nanoparticles (IMAGE) University of Southern California Caption Nanoparticles form in a 3-D-printed microfluidic channel. Each droplet shown here is about 250 micrometers in diameter, and contains billions of platinum nanoparticles. https://youtu.be/K5rFL4MIfac Credit Courtesy of Richard Brutchey and Noah Malmstadt/USC Usage Restrictions For use in news stories only 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.