A skin-inspired organic digital mechanoreceptor
Top Cited Papers
- 16 October 2015
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 350 (6258), 313-316
- https://doi.org/10.1126/science.aaa9306
Abstract
Human skin relies on cutaneous receptors that output digital signals for tactile sensing in which the intensity of stimulation is converted to a series of voltage pulses. We present a power-efficient skin-inspired mechanoreceptor with a flexible organic transistor circuit that transduces pressure into digital frequency signals directly. The output frequency ranges between 0 and 200 hertz, with a sublinear response to increasing force stimuli that mimics slow-adapting skin mechanoreceptors. The output of the sensors was further used to stimulate optogenetically engineered mouse somatosensory neurons of mouse cortex in vitro, achieving stimulated pulses in accordance with pressure levels. This work represents a step toward the design and use of large-area organic electronic skins with neural-integrated touch feedback for replacement limbs.Keywords
Funding Information
- Xerox Foundation
- gency for Science Technology and Research Singapore (A*STAR)
- National IT Industry Promotion Agency
- MSIP (Ministry of Science, ICT and Future Planning), Korea (NIPA-2014-H0201-14-1001)
- Samsung Electronics
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