Health monitor biosensors are a topic in tech right now, but most of them are physical sensors, says Girish Kulkarni, founder of Arborsense. What if instead of using optics or sensors that measure blood pressure and flow through the skin, you could measure chemicals? We’ve been hearing for years now that graphene was supposed to take over the world, and maybe that world is finally arriving. Arborsense uses graphene electronic transdermal nano-sensors to test for chemicals and biomolecules through biomonitors. What does that mean? Here’s one example: Arborsense is partnering in clinical trials with Ann Arbor-based clinical psychiatrist Mark Ilgen at the Med School to use their graphene sensors to monitor drug addict patient alcohol blood levels through what molecules are excreted through the skin. That’s right. Instead of a breathalyzer one-time analysis of blood alcohol levels or other periodic tests for drug use, these graphene nano-sensors continuously monitor blood alcohol levels to track patient sobriety, health, and more.