[Abstract]

 Creating artificial sensory skins that shows the tactile-sensing capability of human skin has been a big challenge in wearable skin electronics. In particular, biomimetics has emerged as a burgeoning area in the field of deformable tactile sensor skins that has led innovations in material designing and device structure manipulation with the aim of imitating sensing mechanism of human skin, intelligently.

 In this talk, inspired by the sophisticated physiological ion dynamics of living cells, we describe a uniquely designed deformable ion channel consisting of artificial ions confined into well-designed hybrid interface. Novel bottom-up strategy employed here resulted into supramolecular polymer networks through non-covalent interactions between poroelastic artificial ions and viscoelastic polymer chains or through hydrogen-bonding triggered ion dynamics, which endows effective ion drift under mechanical stimuli, simultaneously. This design allows for high-performance synaptic plasticity as well as ultrasensitive mechano-transduction over a wide spectrum of pressure, which can serve next neuromorphic tactile platform for highly interactive human-machine interface.