Berlin 2012 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 71: Poster Session: Graphene / Topological Insulators / Interfaces and Surfaces

HL 71.17: Poster

Wednesday, March 28, 2012, 16:00–19:00, Poster D

Cell Bioelectronics using Graphene Transistors — Liding Zhang, Lucas Hess, Max Seifert, Christoph Becker-Freyseng, Martin Stutzmann, Ian D. Sharp, Jose A. Garrido, and •Tobias Schneider — Walter Schottky Institut, TU München

In this work, we present results on the interaction of graphene solution-gated field effect transistors (G-SGFETs) with living cells. The biocompatibility of graphene was tested by growing different types of cells on bare graphene substrates as well as on arrays of G-SGFETs. Cardiomyocyte-like HL-1 cells, Human Embryonic Kidney (HEK) cells and pure retinal ganglion cells from postnatal rats have been cultured successfully. Using the transistors beneath, action potentials generated by the cells could be detected and resolved. By means of the patch clamp technique, additional detail on these action potentials is obtained leading to a more detailed understanding of the cell-transistor interface.