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Knitted Ti3C2Tx MXene based fiber strain sensor for human-computer interaction.

Xiyao Fu1, La Li2, Shuai Chen3

  • 1Sino-Russian International Joint Laboratory for Clean Energy and Energy Conversion Technology, College of Physics, International Center of Future Science, Jilin University, Changchun 130012, PR China.

Journal of Colloid and Interface Science
|July 19, 2021
PubMed
Summary

Researchers developed a novel fiber strain sensor using Ti3C2Tx MXene and P(VDF-TrFE) nanofibers. This wearable sensor accurately monitors human motion and physiological signals, paving the way for advanced health monitoring devices.

Keywords:
Data gloveFiber electronicsHuman-computer interactionMXeneStrain sensor

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Area of Science:

  • Materials Science
  • Wearable Electronics
  • Nanotechnology

Background:

  • Fiber-based stretchable electronics are crucial for wearable applications like personalized medicine and health monitoring.
  • Existing materials often lack the required combination of flexibility, stability, and sensitivity.

Purpose of the Study:

  • To develop a highly sensitive and durable fiber strain sensor for advanced wearable electronic devices.
  • To explore the potential of Ti3C2Tx MXene and P(VDF-TrFE) in creating robust strain-sensing materials.

Main Methods:

  • Fabrication of Ti3C2Tx MXene wrapped by poly(vinylidenefluoride-co-trifluoroethylene) (P(VDF-TrFE)) polymer nanofibers via electrostatic spinning.
  • Characterization of the fiber sensor's electrical resistance change under strain.
  • Testing sensor performance including gauge factor, response time, and durability.

Main Results:

  • The Ti3C2Tx@P(VDF-TrFE) fiber sensor demonstrated a high gauge factor of 108.8 (45-66% strain) and a rapid response time of 19 ms.
  • The sensor exhibited excellent durability over 1600 stretching/releasing cycles.
  • Real-time monitoring of vigorous human motions and subtle physiological signals was achieved.

Conclusions:

  • The developed fiber strain sensor offers remarkable performance for wearable electronics.
  • Its ability to monitor diverse human activities highlights its potential in personalized medicine and intelligent human-computer interfaces.
  • The sensor is practical for integration into multifunctional wearable devices, including a data glove for gesture control.