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Evolution of electronic circuits using carbon nanotube composites.

Massey, M.K. and Kotsialos, A. and Volpati, D. and Vissol-Gaudin, E. and Pearson, C. and Bowen, L. and Obara, B. and Zeze, D.A. and Groves, C. and Petty, M.C. (2016) 'Evolution of electronic circuits using carbon nanotube composites.', Scientific reports., 6 . p. 32197.


Evolution-in-materio concerns the computer controlled manipulation of material systems using external stimuli to train or evolve the material to perform a useful function. In this paper we demonstrate the evolution of a disordered composite material, using voltages as the external stimuli, into a form where a simple computational problem can be solved. The material consists of single-walled carbon nanotubes suspended in liquid crystal; the nanotubes act as a conductive network, with the liquid crystal providing a host medium to allow the conductive network to reorganise when voltages are applied. We show that the application of electric fields under computer control results in a significant change in the material morphology, favouring the solution to a classification task.

Item Type:Article
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Publisher statement:This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Date accepted:02 August 2016
Date deposited:05 August 2016
Date of first online publication:25 August 2016
Date first made open access:25 August 2016

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