[TuP3H] H. Flexible materials

2:00 PM - 4:00 PM JST(5:00 AM - 7:00 AM UTC)

[TuP3H-09 LN] Artificial Nanochannel-Mediated Ionic Transmembrane Potential for Adaptive Neuromorphic Tactile Perception

〇Jiqing Dai¹ (1. Southern Univ. of Sci. and Tech. (China))

Biological perception represents a sophisticated process that seamlessly integrates adaptive sensory processing with neural computation. The core mechanism involves transforming external stimuli into potential signals with receptor–synapse synergy enabled by precise ion transport. Inspired by nature's paradigm, we present an adaptive neuromorphic tactile perception system that couples piezoionic sensing with synaptic computing functions via nanochannel-mediated ion transport. The biomimetic tactile device is a composite of two ionic hydrogel films separated by a PET nanochannel membrane. Similar to mechanosensitive ion channels, applied pressure drives ions to selectively traverse the nanochannels, producing fast-adaptive transmembrane potential in single units and slow-adaptive potential maintenance via force-driven coupling of piezoionic signaling with electrical relaxation across interconnected units. Leveraging adaptive sensory signaling within interconnected units, the neuromorphic system reduces the recording consumption of pressure information by 75% and achieves 92.3% texture recognition accuracy. This capability offers a promising pathway toward overcoming the integration and computation bottlenecks in wearable intelligent sensing.