Liquid Gated Graphene Field Effect Transistors for biomedical applications

Abstract

Graphene's exceptional properties, including strength, flexibility, and electrical conductivity, have propelled it to the forefront of materials science since its isolation in 2004. Graphene field effect transistors (GFETs), and particularly those utilizing liquid gating techniques (LG-GFETs), have emerged as superb tools in biosensing and neural interface technology. This thesis explores the potential of LG-GFET array chips, taking advantage of graphene's unique properties to enable sensitive, real-time detection of biological signals. Through electrical characterization and ion sensitivity experiments the foundation for the integration of LG-GFETs to be integrated into next-generation biosensors and neural signal processing devices has been laid. The presented findings not only deepen the understanding of LG-GFETs but also propel the usage of LG-GFETs in neural cells data acquisition.