Graphene Sensors Inc

Graphene Sensors was established in 2011 in Canada, with an aim to commercialize graphene-based sensors for the medical market.

The company announced its GS7 biosensor technology (for the early detection of potentially cancerous cells), and also announced evelopment of chemical sensors. In May 2015 the company announced a $36 million Joint-Venture with Meditel to commercialize the GS7 sensors.

It seems like Graphene Sensors is no longer in business.