Skin-Inspired, Permeable, Structure-Gradient Fiber Mats for Pressure Sensing in Rehabilitation Assistance

IF 17.2 1区 工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Jinxing Jiang, Xian Song, Youchao Qi, Xiaoming Tao, Zijian Zheng, Qiyao Huang
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引用次数: 0

Abstract

Rehabilitation devices that integrate pressure sensors can measure vital metrics such as muscle activities and body posture, allowing patients to perform rehabilitation exercises independently without the need for constant professional oversight. However, traditional devices are commonly constructed based on thin-film plastics and rely on external power sources that are housed in bulky encapsulation cases, compromising user inconvenience and discomfort when worn for rehabilitation activities. While textile-based sensors with self-powering capabilities offer comfort and mobility without external power sources, their sensitivity and sensing range for pressure changes fall short compared to those counterparts. To address this challenge, we herein introduce a skin-inspired, permeable, structure-gradient fiber mat (SGFM) for triboelectric pressure-sensing textiles. Permeable SGFM, created through template-assisted layer-by-layer electrospinning, mimics human skin's rigidity-to-softness mechanical transition. Such a structural design can effectively enhance the dielectric and compressive properties of SGFM, thereby significantly enhancing the sensitivity of the SGFM-based triboelectric pressure sensing textiles over a broad sensing range (0.068 kPa−1 in 0–53 kPa, 0.013 kPa−1 in 53–660 kPa). Notably, the electrospun fibrous structure of SGFM provides pressure sensing textiles with promising moisture permeability, ensuring a comfortable wearing experience. As a proof-of-concept demonstration of applications, SGFM was incorporated into a wearable rehabilitation monitoring system to detect quadriceps, pulse, and plantar pressures for posture tracking and correction, displaying substantial potential for enhancing the efficiency of rehabilitation assistance.

Graphical Abstract

A permeable, multilayered structure-gradient fiber mat (SGFM) for triboelectric pressure-sensing textiles is proposed. Permeable SGFM, created through template-assisted layer-by-layer electrospinning, mimics human skin's rigidity-to-softness mechanical transition. Such a structural design can effectively enhance the sensitivity of the SGFM-based triboelectric pressure sensing textiles over a broad sensing range. As a proof-of-concept demonstration of applications, SGFM was incorporated into a wearable rehabilitation monitoring system to detect quadriceps, pulse, and plantar pressures for posture tracking and correction, displaying substantial potential for enhancing the efficiency of rehabilitation assistance.

皮肤启发,渗透性,结构梯度纤维垫压力传感康复援助
集成压力传感器的康复设备可以测量肌肉活动和身体姿势等重要指标,使患者能够独立进行康复锻炼,而无需持续的专业监督。然而,传统的设备通常是基于薄膜塑料制成的,并依赖于外部电源,这些电源被安置在笨重的封装盒中,在佩戴进行康复活动时给用户带来不便和不适。虽然具有自供电能力的基于纺织品的传感器在没有外部电源的情况下提供了舒适性和移动性,但与同类产品相比,它们的灵敏度和对压力变化的传感范围较短。为了解决这一挑战,我们在此介绍了一种皮肤启发的、可渗透的、结构梯度的纤维垫(SGFM),用于摩擦电压力传感纺织品。可渗透的SGFM是通过模板辅助的逐层静电纺丝制成的,模拟了人类皮肤从刚性到柔软的机械过渡。这种结构设计可以有效地提高SGFM的介电和压缩性能,从而显著提高基于SGFM的摩擦电压力传感纺织品在较宽的传感范围(0-53 kPa 0.068 kPa−1,53-660 kPa 0.013 kPa−1)内的灵敏度。值得注意的是,SGFM的电纺纤维结构为压力传感纺织品提供了良好的透湿性,确保了舒适的穿着体验。作为应用的概念验证演示,SGFM被纳入可穿戴康复监测系统,用于检测股四头肌、脉搏和足底压力,以进行姿势跟踪和纠正,显示出提高康复援助效率的巨大潜力。提出了一种可渗透的多层结构梯度纤维垫(SGFM)。可渗透的SGFM是通过模板辅助的逐层静电纺丝制成的,模拟了人类皮肤从刚性到柔软的机械过渡。这种结构设计可以有效地提高基于sgfm的摩擦电压力传感纺织品在宽传感范围内的灵敏度。作为应用的概念验证演示,SGFM被纳入可穿戴康复监测系统,用于检测股四头肌、脉搏和足底压力,以进行姿势跟踪和纠正,显示出提高康复援助效率的巨大潜力。
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来源期刊
CiteScore
18.70
自引率
11.20%
发文量
109
期刊介绍: Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.
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