A flexible dual-structured MXene for ultra-sensitive and ultra-wide monitoring of anatomical and physiological movements

Lihao Guo, Zekun Li, Wenwen Hu, Taoping Liu, Youbin Zheng, Miaomiao Yuan, Yujie Dai, Ruizhi Ning, Yujin Zhu, Keyu Tao, Min Zhang, Tao Du, Lu Zhang, Chen Su, Hossam Haick, Weiwei Wu

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Flexible devices for capturing anatomical and physiological movements are essential for improving the quality of life in, e.g., disease monitoring, physical rehabilitation, and assistance for people with cognitive disorders. They require high sensitivity, wide detection range, multi-functional applicability, etc. Nevertheless, the current devices and technologies face the challenge of simultaneous achievement of these features, mainly sensitivity and detection range, and thus their utility and applications are limited. Herein we report on the design and production of dual-microstructures of surface micro-bumps and internal hollow pores in a conductive material, an MXene, for obtaining a multifunctional high-performance pressure sensor. The designed sensor has ultra-high sensitivity (401.01 kPa-1, 0-12 kPa), a wide detection range (1.96 Pa to 100 kPa), and stability in a wide range of human physiological and anatomical movement types, including wide range movement (joint movement and gesture), slight movement (muscle movement and wrist pulse), and synchronous movement (respiration, carotid artery, and head movement). With data-mining methods, we show an ultra-sensitive ability to extract gesture behavioral information and physiological information from the sensor signals, and its implications for human health. These performances could be used as a shuttling pad for motor function assessment and dexterous human-robot interaction for rehabilitation robots and intelligent prosthetics.

Original languageEnglish
Pages (from-to)26867-26874
Number of pages8
JournalJournal of Materials Chemistry A
Volume9
Issue number47
DOIs
StatePublished - 21 Dec 2021
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

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