On hybrid circuits exploiting thermistive properties of slime mould

Walter, X. A., Horsfield, I., Mayne, R., Ieropoulos, I. and Adamatzky, A. (2016) On hybrid circuits exploiting thermistive properties of slime mould. Scientific Reports, 6 (23924). ISSN 2045-2322 Available from: http://eprints.uwe.ac.uk/28498

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Publisher's URL: http://dx.doi.org/10.1038/srep23924


Slime mould Physarum polycephalum is a single cell visible by 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.

Item Type:Article
Uncontrolled Keywords:hybrid circuits, slime mould
Faculty/Department:Faculty of Environment and Technology
ID Code:28498
Deposited By: Dr X. Walter
Deposited On:21 Mar 2016 14:57
Last Modified:14 Apr 2017 05:06

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