GraphWear closes $20.5M Series B for a needle-free, graphene-powered glucose monitor

Graphwear, a startup developing graphene-based needle-free approaches to glucose monitoring, recently closed a $20.5 million Series B round. GraphWear is developing a skin-surface-level wearable made of graphene. The sensor is small, about the size of an Apple Watch — but the key piece of technology is actually housed on the bottom. It’s a thin slice of graphene that fits onto the back of the watch, or onto a sticker that can be worn on the abdomen.

Image by Graphwear

This Series B round will be focused on helping the company build upon previous validation studies of the wearable, completing a pivotal trial and submitting for FDA clearance. The round was led by Mayfield, with participation from MissionBio Capital, Builders VC and VSC Ventures.