| Abstract: Quantum materials provide responses and states of matter with no classical analogs. As such, they offer opportunities to create various platforms for future devices crucial to human health, energy efficiency, communications, and imaging. I will describe the physics challenges and sensing opportunities these materials offer. I will then focus on using the relativistic electrons in graphene for biosensing. Specifically, we have developed a new platform for multiplexed, rapid, easy-to-use detectors of biological analytes. I will discuss the unique aspects of graphene involved, resulting in our demonstration of a handheld device that detects antibiotic-resistant bacteria, decease biomarkers, opioids, and respiratory infections in saliva and wastewater at concentrations an order of magnitude better than mass-spectroscopy. Time permitting, I will briefly mention other efforts in our group to study novel quasi-particles in these systems. |