Figure (IMAGE) National Institute for Materials Science, Japan Caption (a) Photographs of an alkyl–π liquid and an alkyl–π gel in vials. (b) Response of an alkyl–π gel-based vibration sensor to 17 Hz vibrations. Credit Takashi Nakanishi National Institute for Materials Science Usage Restrictions None License Original 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.