2024
DOI: 10.1021/acs.nanolett.3c04446
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Electrical Impedance Spectroscopy with Bacterial Biofilms: Neuronal-like Behavior

Emmanuel U. Akabuogu,
Lin Zhang,
Rok Krašovec
et al.

Abstract: Negative capacitance at low frequencies for spiking neurons was first demonstrated in 1941 (K. S. Cole) by using extracellular electrodes. The phenomenon subsequently was explained by using the Hodgkin−Huxley model and is due to the activity of voltage-gated potassium ion channels. We show that Escherichia coli (E. coli) biofilms exhibit significant stable negative capacitances at low frequencies when they experience a small DC bias voltage in electrical impedance spectroscopy experiments. Using a frequency do… Show more

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Cited by 3 publications
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