Zone-plates Atop Microfluidic Channels (image) Harvard University Caption This is an example of multiple zone-plates placed over individual microfluidic channels. Credit Laboratory of Ken Crozier, Harvard School of Engineering and Applied Sciences. Usage Restrictions None 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.