A highly sensitive stretchable strain sensor based on multi-functionalized fabric for respiration monitoring and identification

Li, Yi; Li, Zhenhong; Zhai, Heng; Chen, Kaili; Yi, Yangpeiqi; Gao, Yuan; Xu, Lulu; Zheng, Yan; Yao, Sirui; Liu, Zhangchi; Li, Gang; Song, Qingwen; Yue, Pengfei; Xie, Shane; Zheng, Zijian

doi:10.1016/j.cej.2021.130869

Cited by 66 publications

(51 citation statements)

References 22 publications

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“…This concept was also extensively reported for strain sensing devices in carbonized silk fabric [90], carbonized silk georgette [142], carbonized crepe paper [143], graphene-modified copper mesh [149,150], graphene-modified cotton fabric with the treatment of ethanol flame [151], CNT mesh [152], and CNT film [2]. Very recently, our group reported a highly sensitive strain sensor based on a carbonized linen fabric with PAMD [153]. Figure 4c exhibits the step-by-step functionalization process: a pristine linen woven fabric is firstly carbonized in a high-temperature environment with the protection of inert gases; a layer of dense copper particles is deposited onto the fiber surface of the carbonized fabric.…”

Section: Elastomer-encapsulated Strain Sensorsmentioning

confidence: 67%

“…We recently demonstrated an end-to-end health monitoring and emergency warning system in our previous work by integrating strain sensors with a convolutional neural network (CNN) (Fig. 10f) [153]. Human respiration signals were collected by attaching the strain sensor to the chest, and then the signals (i.e., normal breath, tachypnea, and tachypnea with cough) were classified into three target classes by using the CNN.…”

Section: Health Indicatorsmentioning

confidence: 99%

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confidence: 99%

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Functionalized Fiber-Based Strain Sensors: Pathway to Next-Generation Wearable Electronics

et al. 2022

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Wearable strain sensors are arousing increasing research interests in recent years on account of their potentials in motion detection, personal and public healthcare, future entertainment, man–machine interaction, artificial intelligence, and so forth. Much research has focused on fiber-based sensors due to the appealing performance of fibers, including processing flexibility, wearing comfortability, outstanding lifetime and serviceability, low-cost and large-scale capacity. Herein, we review the latest advances in functionalization and device fabrication of fiber materials toward applications in fiber-based wearable strain sensors. We describe the approaches for preparing conductive fibers such as spinning, surface modification, and structural transformation. We also introduce the fabrication and sensing mechanisms of state-of-the-art sensors and analyze their merits and demerits. The applications toward motion detection, healthcare, man–machine interaction, future entertainment, and multifunctional sensing are summarized with typical examples. We finally critically analyze tough challenges and future remarks of fiber-based strain sensors, aiming to implement them in real applications.

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Section: Elastomer-encapsulated Strain Sensorsmentioning

confidence: 67%

Section: Health Indicatorsmentioning

confidence: 99%

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Functionalized Fiber-Based Strain Sensors: Pathway to Next-Generation Wearable Electronics

et al. 2022

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“…130,131 There are great prospects for using skin-inspired hydrogel sensor as implantable devices to monitor human motions. 132 Pei et al 133 prepared a novel stretchable, self-healing hydrogel based on polydopamine and zwitterionic nanocomposite, which showed not only high strain sensitivity, but also strong adhesion to tissues and organs (heart, lung and liver) for in situ monitoring of human health. In addition to human movements, hydrogel sensors have been developed to track and monitor physiological information in vivo.…”

Section: In Vivo Monitoringmentioning

confidence: 99%

Recent progress in conductive self‐healing hydrogels for flexible sensors

Tao

Liao

et al. 2022

Journal of Polymer Science

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Flexible sensors have great potential in the application of wearable and implantable devices, and conductive hydrogels have been widely used in wearable sensing devices due to their biomimetic structure, biocompatibility, adjustable transparency and stimuli-responsive electrical properties. Conventional conductive hydrogels are prone to be damaged in their application process and lack of long-term reliability. Inspired by natural organisms such as mussels, introduction of self-healing capabilities has been regarded as a promising approach to extend the service life of hydrogel sensing devices. This work

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“…Sott robotics has received increased attention in different fields due to potential applications such as wearable devices [1] , [2] , [3] , biomedical [4] , [5] , [6] , healthcare [7] , [8] , [9] , and other human soft machine interfaces. Fundamental research has been conducted to support advances in soft robotics.…”

Section: Hardware In Contextmentioning

confidence: 99%