The human body is an extremely complex molecular machine, the details of which can be followed through certain substances; so-called biomarkers. Unfortunately, it is not yet possible to monitor biomarkers live in patients when these are present in minuscule concentrations. Researchers at Eindhoven University of Technology have now developed a new technique that can become the plain and simple solution for the live and super-sensitive monitoring of biomarkers. They report on it in Nature Communications.