MXene-coated fabric block electromagnetic radiation (VIDEO) Drexel University This video is under embargo. Please login to access this video. Caption Drexel University researchers have developed a coating for materials that can block electromagnetic radiation. They demonstrate it's effectiveness by blocking a cell phone transmission by wrapping it in the material. Credit Drexel University Usage Restrictions None 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.