Printed Metamaterial (image) Duke University Share Print E-Mail Caption It takes about 20 minutes to 3-D print one metamaterial unit cell using the Electrifi filament and a relatively low-cost 3-D printer. By combining a series of these cells, each tailored to interact with an electromagnetic wave in a certain way, researchers can create a structure that can powerfully manipulate microwave radiation. Credit Shengrong Ye, Duke University Usage Restrictions None Share Print E-Mail 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.