MXene Nanosheet-enhanced Ionotronic Hydrogels for Wireless Powering and Noncontact Sensing

Yao-Qian Han; Zhou-Yue Lei; Pei-Yi Wu

doi:10.1007/s10118-025-3253-6

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MXene Nanosheet-enhanced Ionotronic Hydrogels for Wireless Powering and Noncontact Sensing

RESEARCH ARTICLE | Updated：2025-07-14

- MXene Nanosheet-enhanced Ionotronic Hydrogels for Wireless Powering and Noncontact Sensing
- Chinese Journal of Polymer Science Vol. 43, Issue 4, Pages: 572-580(2025)
- Affiliations：
  
  State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
- Author bio：
  
  leizhouyue@dhu.edu.cn (Z.Y.L.)
  wupeiyi@dhu.edu.cn (P.Y.W.)
- Funds：
- DOI：10.1007/s10118-025-3253-6
  CLC：
- Received：18 September 2024，
  
  Revised：2024-10-13，
  
  Accepted：16 October 2024，
  
  Online First：10 January 2025，
  
  Published：01 April 2025
- Accepted：
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Han, Y. Q.; Lei, Z. Y.; Wu, P. Y. MXene nanosheet-enhanced ionotronic hydrogels for wireless powering and noncontact sensing. Chinese J. Polym. Sci. 2025, 43, 572–580

Yao-Qian Han, Zhou-Yue Lei, Pei-Yi Wu. MXene Nanosheet-enhanced Ionotronic Hydrogels for Wireless Powering and Noncontact Sensing[J]. Chinese Journal of Polymer Science, 2025, 43(4): 572-580.
Han, Y. Q.; Lei, Z. Y.; Wu, P. Y. MXene nanosheet-enhanced ionotronic hydrogels for wireless powering and noncontact sensing. Chinese J. Polym. Sci. 2025, 43, 572–580 DOI： 10.1007/s10118-025-3253-6.

Yao-Qian Han, Zhou-Yue Lei, Pei-Yi Wu. MXene Nanosheet-enhanced Ionotronic Hydrogels for Wireless Powering and Noncontact Sensing[J]. Chinese Journal of Polymer Science, 2025, 43(4): 572-580. DOI： 10.1007/s10118-025-3253-6.

摘要

We introduce MXene nanosheets to construct ionotronic hydrogels. Leveraging the rich surface charges and electronic conductivity of MXene nanosheets

ionotronic hydrogels can harvest vibrational and electromagnetic waves as electrical energy and enable noncontact sensing.

Abstract

Smart actuators and wearable and implantable devices have attracted much attention in healthcare and environmental sensing. Flexible electronic and ionic materials are the two main approaches used to construct these devices. Among them

hydrogel-based ionic materials offer unique advantages

such as biocompatibility and adaptable mechanical properties. However

ionic hydrogels encounter challenges in achieving wirelessly powered and noncontact sensing. To address this

we introduce MXene nanosheets to construct ionotronic hydrogels. Leveraging the rich surface charges and electronic conductivity of MXene nanosheets

ionotronic hydrogels can harvest vibrational and electromagnetic waves as electrical energy and enable noncontact sensing. Under ultrasound

it can continuously generate voltages up to 85 V and light up light-emitting diodes

promising wireless charging of implanted devices. In addition

it achieves an absorption coefficient of 0.2 for 915 MHz electromagnetic waves

enabling noncontact sensing through radio frequency identification. Notably

the physically crosslinked network of the MXene-based hydrogels maintained structural and performance stability under ultrasonic stimulation and exhibited self-healing properties. Even when cut into two halves

the self-healing hydrogel fully regenerates its original performance. This study provides insight into the development of ionotronic hydrogels for wirelessly powered and noncontact sensing in smart actuators and wearable and implantable applications.

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