On hybrid circuits exploiting thermistive properties of slime mould
On hybrid circuits exploiting thermistive properties of slime mould
Slime mould Physarum polycephalum is a single cell visible by the unaided eye. Let the slime mould span two electrodes with a single protoplasmic tube: if the tube is heated to approximately ≈40 °C, the electrical resistance of the protoplasmic tube increases from ≈3 MΩ to ≈10,000 MΩ. The organism’s resistance is not proportional nor correlated to the temperature of its environment. Slime mould can therefore not be considered as a thermistor but rather as a thermic switch. We employ the P. polycephalum thermic switch to prototype hybrid electrical analog summator, NAND gates and cascade the gates into Flip-Flop latch. Computing operations performed on this bio-hybrid computing circuitry feature high repeatability, reproducibility and comparably low propagation delays.
Walter, Xavier Alexis
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Horsfield, Ian
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Mayne, Richard
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Ieropoulos, Ioannis A.
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Adamatzky, Andrew
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6 April 2016
Walter, Xavier Alexis
67c83b61-76af-4e37-aec8-79ebc723b807
Horsfield, Ian
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Mayne, Richard
ec093263-b23f-4dea-ace2-599160f1ea43
Ieropoulos, Ioannis A.
6c580270-3e08-430a-9f49-7fbe869daf13
Adamatzky, Andrew
0e283fac-b264-41ea-81c8-22f01e9be8b3
Walter, Xavier Alexis, Horsfield, Ian, Mayne, Richard, Ieropoulos, Ioannis A. and Adamatzky, Andrew
(2016)
On hybrid circuits exploiting thermistive properties of slime mould.
Scientific Reports, 6, [23924].
(doi:10.1038/srep23924).
Abstract
Slime mould Physarum polycephalum is a single cell visible by the unaided eye. Let the slime mould span two electrodes with a single protoplasmic tube: if the tube is heated to approximately ≈40 °C, the electrical resistance of the protoplasmic tube increases from ≈3 MΩ to ≈10,000 MΩ. The organism’s resistance is not proportional nor correlated to the temperature of its environment. Slime mould can therefore not be considered as a thermistor but rather as a thermic switch. We employ the P. polycephalum thermic switch to prototype hybrid electrical analog summator, NAND gates and cascade the gates into Flip-Flop latch. Computing operations performed on this bio-hybrid computing circuitry feature high repeatability, reproducibility and comparably low propagation delays.
Text
srep23924
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Published date: 6 April 2016
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Local EPrints ID: 454066
URI: http://eprints.soton.ac.uk/id/eprint/454066
ISSN: 2045-2322
PURE UUID: d2482527-092e-4199-8265-d34ea377aa4e
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Date deposited: 27 Jan 2022 19:24
Last modified: 17 Mar 2024 04:10
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Author:
Xavier Alexis Walter
Author:
Ian Horsfield
Author:
Richard Mayne
Author:
Andrew Adamatzky
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