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Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum

Whiting, James G. H.; de Lacy Costello, Ben P. J.; Adamatzky, Andrew

Authors

James Whiting James.Whiting@uwe.ac.uk
Occasional Associate Lecturer - FET EDM



Abstract

Plasmodium of slime mould Physarum polycephalum is a large single celled organism visible unaided by the eye. This slime mould is capable of optimising the shape of its protoplasmic networks in spatial configurations of attractants and repellents. Such adaptive behaviour can interpreted as computation. When exposed to attractants and repellents, Physarum changes patterns of its electrical activity. We experimentally derived a unique one-to-one mapping between a range of selected bioactive chemicals and patterns of oscillations of the slime mould's extracellular electrical potential. This direct and rapid change demonstrates detection of these chemicals in a similar manner to a biological contactless chemical sensor. We believe results could be used in future designs of slime mould based chemical sensors and computers. © 2013 Elsevier B.V.

Journal Article Type Article
Publication Date Feb 1, 2014
Journal Sensors and Actuators, B: Chemical
Print ISSN 0925-4005
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 191
Pages 844-853
APA6 Citation Whiting, J. G. H., de Lacy Costello, B. P. J., & Adamatzky, A. (2014). Towards slime mould chemical sensor: Mapping chemical inputs onto electrical potential dynamics of Physarum Polycephalum. Sensors and Actuators B: Chemical, 191, 844-853. https://doi.org/10.1016/j.snb.2013.10.064
DOI https://doi.org/10.1016/j.snb.2013.10.064
Keywords physarum polycephalum, electrical activity, oscillations, biosensor
Publisher URL http://dx.doi.org/10.1016/j.snb.2013.10.064
Additional Information Additional Information : The final publication is available at http://dx.doi.org/10.1016/j.snb.2013.10.064.

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