期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 191, 期 -, 页码 844-853出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.10.064
关键词
Physarum polycephalum; Electrical activity; Oscillations; Biosensor
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. (C) 2013 Elsevier B.V. All rights reserved.
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