Biosensing JFET platform with printed graphene gate and customizable functionalization

The goal of this research project is to create a novel type of biosensor by combining two complimentary microfabrication techniques. First, a silicon chip containing JFET transistors with an open gate will be fabricated using traditional microfabrication techniques that are highly reliable and give good performance. Second, a graphene layer will be inkjet printed onto the open gate of the transistor. The graphene will act as a sensor transducer to sense pH or biological species such as insulin. Graphene has a large surface area and good electrical properties, which makes it the ideal transducer material. The graphene can be functionalized to detect various different biological species. Combined with the flexibility of inkjet printing, this will allow different biosensors to be fabricated easily next to each other on the same silicon platform.

Mehraneh Tavakkoli Gilavan
Faculty Supervisor: 
Gerd Grau
Partner University: