Physarum boats: if plasmodium sailed it would never leave a port

Article type: Research Article

Authors: Adamatzky, Andrew

Affiliations: University of the West of England, Bristol BS16 1QY, United Kingdom

Note: [] E-mail: [email protected]

Abstract: Plasmodium of Physarum polycephalum is a single huge (visible by naked eye) cell with a myriad of nuclei. The plasmodium is a promising substrate for non-classical, nature-inspired computing devices. It is capable of approximation of the shortest path in a maze, computation of planar proximity graphs and plane tessellations, primitive memory and decision making. The unique properties of the plasmodium make it an ideal candidate for a role of amorphous biological robots with massive parallel information processing and distributed inputs and outputs. We show that when adhered to a lightweight object resting on a water surface the plasmodium can propel the object by oscillating its protoplasmic pseudopodia. In experimental laboratory conditions and computational experiments we study phenomenology of the plasmodium-floater system, and possible mechanisms of controlling motion of objects propelled by on-board plasmodium.

Keywords: Physarum polycephalum, motility, biological robots

DOI: 10.1080/11762320902863890

Journal: Applied Bionics and Biomechanics, vol. 7, no. 1, pp. 31-39, 2010