MXene-Fiber Composite Membranes for Permeable and Biocompatible Skin-Interfaced Iontronic Mechanosensing
Artificial ionic sensory systems, bridging the divide between biological systems and electronics, mimic human skin functions but face critical challenges with biocompatibility, comfort, signal stability, and simplifying packaging. Here, we present a simple and permeable skin-interfaced iontronic mechanosensing (SIIM) architecture that integrates human skin as natural ionic material and hierarchically porous MXene-fiber composite membranes as sensing electrodes. The SIIM system eliminates complex ionic material design and multilayer matrix, exhibiting ultrahigh pressure sensitivities (5.4 kPa<sup>-1</sup>, <75 Pa), a low detection limit (6 Pa), excellent output stability along with high permeability to minimize the impact of sweating on sensing. The noncytotoxic nature of SIIM electrodes ensures excellent biocompatibility (>97% cell coincubational viability), facilitating long-term wearability and high biosafety. Furthermore, the scalable SIIM configuration integrated with matrix smart gloves, effectively monitors human physical movements. This SIIM-based sensor with marked sensing capabilities, structural simplicity, and scalability, holds promising potential in diverse wearable applications.
Authors
- Zhuo Chen (ORCID: https://orcid.org/0000-0001-5001-5743)
- Yi Wan (ORCID: https://orcid.org/0000-0002-6202-4193)
- Ingo Pinnau (ORCID: https://orcid.org/0000-0003-3040-9088)
- Yingge Wang (ORCID: https://orcid.org/0000-0001-9057-4160)
- Yu-Hsiang Chiang (ORCID: https://orcid.org/0009-0001-1998-819X)
- Lain‐Jong Li (ORCID: https://orcid.org/0000-0002-4059-7783)
- Yichen Cai (ORCID: https://orcid.org/0000-0002-5414-3627)
- Liang Ying Ee (ORCID: https://orcid.org/0000-0001-5682-4357)
- Vincent Tung (ORCID: https://orcid.org/0000-0003-3230-0932)
- Kuo‐Wei Huang (ORCID: https://orcid.org/0000-0003-1900-2658)
- Jie Shen (ORCID: https://orcid.org/0000-0002-0263-6454)
- Yu Han (ORCID: https://orcid.org/0000-0003-1462-1118)
- Nan Yang (ORCID: https://orcid.org/0000-0002-3335-410X)
- Xiaochen Dong (ORCID: https://orcid.org/0000-0003-4837-9059)
Institutions
- Jiangsu Normal University (CN)
- Nanjing Tech University (CN)
- Nanyang Technological University (SG)
- Chinese University of Hong Kong (HK)
- King Abdullah University of Science and Technology (SA)
- The University of Tokyo (JP)
- University of Hong Kong (HK)
- South China University of Technology (CN)
Publication Details
- Journal
- Nano Letters
- Published
- 2024-09-20
- DOI
- https://doi.org/10.1021/acs.nanolett.4c03896
- Citations
- 5
- Primary Topic
- Advanced Sensor and Energy Harvesting Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.92
Funders
- National Natural Science Foundation of China