https://techcrunch.com/2021/10/04/graphwear-closes-20-5m-series-b-for-a-needle-free-nanotech-powered-glucose-monitor/ > GraphWear, a company pursuing needle-free approaches to glucose monitoring, has closed a $20.5 million Series B round. This series B round is a vote of confidence by investors in GraphWear’s approach: to monitor key metrics in the body, like glucose, without breaking the skin at all.  > GraphWear Technologies was founded in 2015 by Rajatesh Gudibande and Saurabh Radhakrishnan, who had both completed master’s degrees in nanotechnology at the University of Pennsylvania. Specifically, GraphWear is developing a skin-surface level wearable made of graphene (more on this material later). 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.