Summary of results
Textile-based sensors have emerged as a promising technology for low-burden, personalized, and in vitro biometrics. However, current textile sensors often lack multimodal or multi-position sensing capabilities, are challenging to manufacture at scale, and cannot be seamlessly integrated into textile readout systems. In this paper, researchers at the University of California, Peter Tseng, and other researchers published a paper titled "Laser-Induced Graphene-Based Smart Textiles for Wireless Cross-Body Metrics" in the journal ACS ANM, which reported an integrated textile laser-induced graphene (LIG) sensor for multiparameter biometric monitoring. LIG sensors are designed with custom patterns that target different stimuli such as strain, humidity, and temperature shown in this article, and exhibit adjustable sensitivity by controlling pattern geometry and laser power used during LIG conversion.
These sensors are highly sensitive to changes in electrical resistance, respond quickly to stimuli (< 5 seconds), and exhibit excellent stability for at least 1000 cycles. Finally, the sensor is synthesized with magnetic metamaterials and seamlessly integrated directly with flexible near-field communication systems on textiles. In this way, the fully integrated "smart" garment enables battery-free, wireless monitoring of whole-body metrics. The study represents a simple and easy strategy for integrating multiple sensors and network elements directly into on-demand textiles for advanced anthropometry.
Illustrated guide
Figure 1: Laser-induced graphene patterned textile sensor.
Figure 2. Characteristics of LIG strain transducers
Figure 2. Characteristics of LIG strain transducers
Figure 3.Practicality of LIG strain sensors for motion tracking.
Figure 4. Characterization of LIG humidity and temperature sensors.
Figure 5.Multi-node pose monitoring with LIG-based "smart" battery-free clothing.
brief summary
In summary, integrated multi-parameter "smart" textiles based on LIG have been successfully developed for wireless cross-body indicators. Versatile, selective sensors are integrated into textiles by using cost-effective integration steps combined with adjustable multilayer and simple hot pressing. This adaptable sensor provides a user-friendly, low-burden solution for a wide range of applications in body tracking and body measurement monitoring. The sensors are easy to co-build with the magnetic metamaterials integrated with textiles, resulting in a battery-free sensor network that can be adapted to a variety of applications and people. The modular nature of the platform is expected to create broader practical prospects for in-situ health monitoring as a low-cost, customizable solution for personalized wearable networks. The potential applications of the system are manifold, including postural analysis, human tracking mechanisms, sports performance and daily activity assessment, real-time health and condition monitoring.
Literature:
https://doi.org/10.1021/acsanm.3c03582