Photo of Elda and Torsten Hegmann (IMAGE) Kent State University Caption Kent State University researchers Elda and Torsten Hegmann pose with one of the sensors they created that detects toxic gases. The sensors can be made any shape or size and require no power to function. Credit Kent State University Usage Restrictions Give photo credit to Kent State University 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.