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Dynamics of electrical resistance of kombucha zoogleal mats

Adamatzky, Andrew

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Abstract

We demonstrate that zoogleal mats of kombucha exhibit spikes of electrical resistance. A kombucha is a sugared tea fermented by a symbiotic community of over 20 species of bacteria and yeasts which produce cellulosic gelatinous zoogleal mats. We recorded electrical resistance of the zoogleal mats via platinum electrodes placed at a distance 1 cm of each other. We found that the mats show temporal variations in electrical resistance in a range 0.13–0.19[Formula: see text]M[Formula: see text]. We discovered spikes of the mats resistance morphologically similar to action potential spikes. Average duration of a resistance spike is 1.8[Formula: see text]min, average amplitude is 2.2[Formula: see text]k[Formula: see text]. Average interval between resistance spikes is c. 20[Formula: see text]min. The discovered resistive spiking of kombucha mats might indicate on their memfractive properties, and thus, open pathways towards prototyping neuromorphic devices with living zoogleal mats.

Citation

Adamatzky, A. (in press). Dynamics of electrical resistance of kombucha zoogleal mats. Biophysical Reviews and Letters, 1-10. https://doi.org/10.1142/s1793048022500084

Journal Article Type Article
Acceptance Date Jan 3, 2023
Online Publication Date Jan 25, 2023
Deposit Date Feb 15, 2023
Publicly Available Date Mar 29, 2024
Journal Biophysical Reviews and Letters
Print ISSN 1793-0480
Electronic ISSN 1793-7035
Publisher World Scientific Publishing
Peer Reviewed Peer Reviewed
Pages 1-10
DOI https://doi.org/10.1142/s1793048022500084
Keywords Molecular Biology, Structural Biology, Biophysics; Electrical resistance; symbiotic culture; bacteria; yeasts; kombucha
Public URL https://uwe-repository.worktribe.com/output/10425472
Publisher URL https://www.worldscientific.com/doi/10.1142/S1793048022500084

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Copyright Statement
This is the author’s accepted manuscript of the article ‘Adamatzky, A. (in press). Dynamics of electrical resistance of kombucha zoogleal mats. Biophysical Reviews and Letters, 1-10.

DOI: https://doi.org/10.1142/s1793048022500084’.

The final published version is available here: https://www.worldscientific.com/doi/10.1142/S1793048022500084




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