A skin-inspired organic digital mechanoreceptor
Stanford University · Palo Alto Research Center
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…
Citation impact
- FWCI
- 48.18
- Percentile
- 100%
- References
- 32
Authors
16Topics & keywords
- Mechanoreceptor
- Somatosensory system
- Stimulation
- Neuroscience
- Biomedical engineering
- Materials science
- Computer science
- Acoustics
- Clean water and sanitation