This work presents an experimental characterization of electrochemically gated graphene field-effect transistors (EGFETs) to measure extracellular cell signals. The performance of the EGFETs was evaluated using cardiomyocytes cells. Extracellular signals with a peak value of 0.4 pico-amperes (pA) embedded in a noise level of 0.1 pA were recorded. Signals in current mode were compared with signals recorded as a voltage. Signals below 28 μV of magnitude can be detected in a noise floor of 7 μV with a signal-to-noise ratio of 4.
CITATION STYLE
Asgarifar, S., Gomes, H. L., Mestre, A., Inácio, P., Bragança, J., Borme, J., … Alpuim, P. (2016). Electrochemically gated graphene field-effect transistor for extracellular cell signal recording. In IFIP Advances in Information and Communication Technology (Vol. 470, pp. 558–564). Springer New York LLC. https://doi.org/10.1007/978-3-319-31165-4_53
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