Neuromorphic antennal sensory system

Chengpeng Jiang, Honghuan Xu, Lu Yang, Jiaqi Liu, Yue Li, Kuniharu Takei () and Wentao Xu ()
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Chengpeng Jiang: Nankai University
Honghuan Xu: Nankai University
Lu Yang: Nankai University
Jiaqi Liu: Nankai University
Yue Li: Nankai University
Kuniharu Takei: Hokkaido University
Wentao Xu: Nankai University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Insect antennae facilitate the nuanced detection of vibrations and deflections, and the non-contact perception of magnetic or chemical stimuli, capabilities not found in mammalian skin. Here, we report a neuromorphic antennal sensory system that emulates the structural, functional, and neuronal characteristics of ant antennae. Our system comprises electronic antennae sensor with three-dimensional flexible structures that detects tactile and magnetic stimuli. The integration of artificial synaptic devices adsorbed with solution-processable MoS2 nanoflakes enables synaptic processing of sensory information. By emulating the architecture of receptor-neuron pathway, our system realizes hardware-level, spatiotemporal perception of tactile contact, surface pattern, and magnetic field (detection limits: 1.3 mN, 50 μm, 9.4 mT). Vibrotactile-perception tasks involving profile and texture classifications were accomplished with high accuracy (> 90%), surpassing human performance in “blind” tactile explorations. Magneto-perception tasks including magnetic navigation and touchless interaction were successfully completed. Our work represents a milestone for neuromorphic sensory systems and biomimetic perceptual intelligence.

Date: 2024
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DOI: 10.1038/s41467-024-46393-7

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