Franz Schilling and His Team (image) Technical University of Munich (TUM) Share Print E-Mail Caption Dr. Franz Schilling (left), Stephan Düwel (center) and Christian Hundshammer (right) have developed a biosensor, that can be used to show pH value changes inside the body using MRI. Credit Andreas Heddergott / Technical University of Munich Usage Restrictions Free for use in reporting on Technical University of Munich with the copyright noted. 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.