November 6, 2025, 2pm, CEMES (coffee offered at 1.30am)

Conference room + Zoom

by Dr. Vincent BOUCHIAT, director of the Grenoble-based start-up GRAPHEAL

The mass production of single-layer graphene layers by chemical vapour deposition on copper substrates has led to the fabrication of biosensing devices at competitive prices. We present a technology that enables the roll-to-roll production of sensors based on graphene/polymer films. It combines biocompatibility, mechanical flexibility, optical transparency and high electronic mobility in the same material, affording ion-sensitive field-effect detection with accuracy rivalling the best GFETs based on transfer to sapphire or silicon wafers.

At Grapheal, we have explored the use of graphene on polymer to enable simultaneous biosensing and tissue engineering, as well as the integration of an RFID component to allow direct connectivity to smartphones. One of our main areas of activity is the development of next-generation connected biosensors, enabling rapid and sensitive detection for medical diagnostics and environmental monitoring. I will demonstrate the application of graphene surface functionalisation to implement sensitive and selective biosensors. In particular, we are actively working to increase production and integrate our range of sensors into digital solutions such as:
• Field sensors for water quality and environmental monitoring (detection of PFAS in water)
• IOT sensors for point-of-care diagnostics and remote patient monitoring (point-of-care diagnostics).