Earthworm muscle drives on-chip valve (VIDEO) RIKEN This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Video showing the flow of fluorescently labeled microparticles through a microchannel on the chip. At 10 seconds, acetylcholine is applied and the valve begins to close. At this time the flow reverses due to pressure, and is completely stopped by 47 seconds Credit RIKEN Usage Restrictions credit RIKEN 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.