MXene-Enhanced Laser-Induced Graphene Flexible Sensor with Rapid Response for Monitoring Pilots’ Body Motion

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 513 - 513

Published: April 27, 2025

Flexible wearable strain sensors demonstrate promising application prospects in health monitoring, human-machine interaction, motion tracking, and the detection of human physiological signals. Although laser-induced graphene (LIG) materials have been extensively utilized these scenarios, traditional types LIG are constrained by intrinsic limitations, including discontinuous conductive networks electromechanical responsive hysteresis. These limitations hinder their applications micro-strain scenarios. Consequently, enhancing performance LIG-based has become a crucial priority. To address this challenge, we developed novel MXene/LIG composite featuring optimized interfacial coupling effects through systematic enhancement LIG. The flexible sensor fabricated using exhibits exceptional performance, an ultra-low sheet resistance 14.1 Ω, high sensitivity 20.7, limit 0.05%, rapid response time approximately 65 ms. improvements significantly enhance responsiveness sensitivity. Furthermore, remarkable stability under varying tensile strains, particularly showing outstanding repeatability across 2500 cyclic tests. Notably, when applied to pilot monitoring MXene/LIG-based demonstrates robust capability detecting body movement signals such as micro-expressions joint movements. This establishes highly effective technological solution for real-time pilots’ states during operational

Language: Английский

A Flexible Wearable Strain Sensor Based on Nano-Silver Modified Laser-Induced Graphene for Monitoring Hand MovementsCitation: To Be Added by Editorial Staff during Production

Published: July 1, 2024

The advancement of performance in the domain flexible wearable strain sensors has become increasingly significant due to extensive research on laser-induced graphene (LIG). An innovative doping modification technique is required owing limited progress achieved by adjusting laser parameters enhance LIG’s performance. By pre-treating with AgNO3, we successfully manufactured LIG a uniform dispersion silver nanoparticles across its surface. experimental results for sensor exhibit exceptional characteristics, including low resistance (183.4 Ω), high sensitivity (426.8), response time approximately 150 ms, and relaxation about 200 ms. Moreover, this demonstrates excellent stability under various tensile strains remarkable repeatability during cyclic tests lasting up 8,000 s. Additionally, yields favorable finger bending hand back stretching experiments, holding reference value preserving inherent characteristics preparation single-step situ manner.

Language: Английский