A Quantum Sensor (IMAGE) University of Würzburg Caption Schematic of a quantum sensor in which a biomolecule (pink) is anchored to a surface of hexagonal boron nitride on which the spin defect (red) is located. The latter operates as a sensitive probe for the environment. Credit Andreas Gottscholl / University of Wuerzburg 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.