A bioinspired flexible organic artificial afferent nerve.

Autor: Kim Y; Department of Electrical Engineering, Stanford University, Stanford, CA, USA., Chortos A; Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA., Xu W; Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea. wentao@nankai.edu.cn zbao@stanford.edu twlees@snu.ac.kr.; Institute of Photoelectronic Thin Film Devices and Technology, Nankai University, Tianjin, China., Liu Y; Department of Bioengineering, Stanford University, Stanford, CA, USA., Oh JY; Department of Chemical Engineering, Stanford University, Stanford, CA, USA.; Department of Chemical Engineering, Kyung Hee University, Yongin, South Korea., Son D; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Kang J; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Foudeh AM; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Zhu C; Department of Electrical Engineering, Stanford University, Stanford, CA, USA., Lee Y; Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea., Niu S; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Liu J; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Pfattner R; Department of Chemical Engineering, Stanford University, Stanford, CA, USA., Bao Z; Department of Chemical Engineering, Stanford University, Stanford, CA, USA. wentao@nankai.edu.cn zbao@stanford.edu twlees@snu.ac.kr., Lee TW; Department of Materials Science and Engineering, Seoul National University, Seoul, South Korea. wentao@nankai.edu.cn zbao@stanford.edu twlees@snu.ac.kr.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2018 Jun 01; Vol. 360 (6392), pp. 998-1003.
DOI: 10.1126/science.aao0098
Abstrakt: The distributed network of receptors, neurons, and synapses in the somatosensory system efficiently processes complex tactile information. We used flexible organic electronics to mimic the functions of a sensory nerve. Our artificial afferent nerve collects pressure information (1 to 80 kilopascals) from clusters of pressure sensors, converts the pressure information into action potentials (0 to 100 hertz) by using ring oscillators, and integrates the action potentials from multiple ring oscillators with a synaptic transistor. Biomimetic hierarchical structures can detect movement of an object, combine simultaneous pressure inputs, and distinguish braille characters. Furthermore, we connected our artificial afferent nerve to motor nerves to construct a hybrid bioelectronic reflex arc to actuate muscles. Our system has potential applications in neurorobotics and neuroprosthetics.
(Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)
Databáze: MEDLINE
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