Self-Powered Multifunction Ionic Skins Based on Gradient Polyelectrolyte Hydrogels

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

10 Scopus Citations
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Author(s)

  • Mingyang Xia
  • Na Pan
  • Chao Zhang
  • Chengjing Zhang
  • Wenxin Fan
  • And 3 others
  • Yanzhi Xia
  • Zuankai Wang
  • Kunyan Sui

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)4714–4725
Journal / PublicationACS Nano
Volume16
Issue number3
Online published21 Feb 2022
Publication statusPublished - 22 Mar 2022

Abstract

Human skin is the largest organ, and it can transform multiple external stimuli into the biopotential signals by virtue of ions as information carriers. Ionic skins (i-skins) that can mimic human skin have been extensively explored; however, the limited sensing capacities as well as the need of an extra power supply significantly restrict their broad applications. Herein, we develop self-powered humanlike i-skins based on gradient polyelectrolyte membranes (GPMs) that can directly and accurately perceive multiple stimuli. Prepared by a hydrogel-assisted reaction-diffusion method, the GPMs exhibit gradient-distributed charged groups across polymer networks, enabling one to generate a thickness-dependent and thermoresponsive self-induced potential in a hydrated situation and in a humidity-sensitive self-induced potential in a dehydrated/dried situation, respectively. Consequently, the GPM-based i-skins can precisely detect pressure, temperature, and humidity in a self-powered manner. The coupling of mechano-electric and thermo-electric effects inherent in GPMs provides a general strategy for developing innovative self-powered ion-based perception systems.

Research Area(s)

  • gradient polyelectrolyte membranes, ionic skins, multifunction sensors, reaction-diffusion, self-induced potential

Citation Format(s)

Self-Powered Multifunction Ionic Skins Based on Gradient Polyelectrolyte Hydrogels. / Xia, Mingyang; Pan, Na; Zhang, Chao; Zhang, Chengjing; Fan, Wenxin; Xia, Yanzhi; Wang, Zuankai; Sui, Kunyan.

In: ACS Nano, Vol. 16, No. 3, 22.03.2022, p. 4714–4725.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review