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<p>Despite the existence of numerous de-icing methods, real-time monitoring of the icing process remains understudied. To address this, we developed a multifunctional flexible pressure sensor via electrostatic adsorption, integrating droplet impact detection, ice formation monitoring, and electrothermal de-icing capabilities. The sensor consists of a Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>MXene/bacterial cellulose (BC)-modified Polydimethylsiloxane (PDMS) pressure-sensitive film and interdigitated electrodes. It detects droplet impacts through pressure-induced electrical signal changes, monitors ice accumulation via increasing pressure responses, and achieves rapid electrothermal de-icing (reaching 0&#xa0;°C in 22&#xa0;s at 20&#xa0;V). Additionally, its flexibility enables human joint motion monitoring through deformation signals. This all-in-one solutionspans from icing process tracking to active de-icing and biomechanical sensing. Such a device shows significant potential for aerospace, infrastructure, and healthcare applications.</p>

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MXene-based multifunctional flexible sensor for real-time icing monitoring, electrothermal de-icing, and human motion detection

  • 期刊论文

  • 发表日期：

    2026年1月20日

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  • Bo Yuan,
  • Yinfeng Wang,
  • Yi Zheng,
  • Honglin Zhu,
  • Yubo Wang,
  • Wenyan Liang,
  • Yongyang Sun

摘要

Despite the existence of numerous de-icing methods, real-time monitoring of the icing process remains understudied. To address this, we developed a multifunctional flexible pressure sensor via electrostatic adsorption, integrating droplet impact detection, ice formation monitoring, and electrothermal de-icing capabilities. The sensor consists of a Ti3C2TxMXene/bacterial cellulose (BC)-modified Polydimethylsiloxane (PDMS) pressure-sensitive film and interdigitated electrodes. It detects droplet impacts through pressure-induced electrical signal changes, monitors ice accumulation via increasing pressure responses, and achieves rapid electrothermal de-icing (reaching 0 °C in 22 s at 20 V). Additionally, its flexibility enables human joint motion monitoring through deformation signals. This all-in-one solutionspans from icing process tracking to active de-icing and biomechanical sensing. Such a device shows significant potential for aerospace, infrastructure, and healthcare applications.