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An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles.
Nanoscale. 2020 Feb 14; 12(6):4110-4118.N

Abstract

Waterproof fiber-based strain sensors with a high gauge factor and outstanding stability are essential for smart textiles, wearable devices and biomedical electronics. In this work, we demonstrate a highly flexible, stretchable, sensitive, and waterproof core-sheath structure strain sensor with a relatively wide strain-sensing range fabricated by a simple approach. Such a core-sheath structure is composed of a superelastic core material polyurethane (PU) yarn; a highly conductive multilayer sheath material, namely, graphene nanosheets/thin gold film/graphene nanosheets (GNSs/Au/GNSs); and a thin polydimethylsiloxane (PDMS) wrapping layer. The combination of the PU yarn, multilayer GNSs/Au/GNSs, and PDMS wrapping layer enables the strain sensor to achieve high flexibility and stretchability, high sensitivity, broad strain-sensing range, and good waterproof property simultaneously due to the infiltration of PDMS into the multilayer during stretching. Particularly, the yarn strain sensor exhibits a high gauge factor (GF: 661.59), outstanding stability with an applied strain of 50% for approximately 10 000 stretch/release cycles, and superior water resistance. Moreover, it can be readily integrated into textiles, including medical textile bandages and textile gloves, for monitoring various human motions (e.g., phonation, pulse, finger bending, and walking) and effectively control a hand robot. Therefore, strain sensors show considerable potential in textile, wearable, and biomedical electronics for healthcare-related applications, such as disease diagnosis, preventive healthcare, and rehabilitation care, and robot controlling-related applications (e.g., controlling a hand robot to catch some objects).

Authors+Show Affiliations

Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Kowloon Tong, Hong Kong. kinglai@cityu.edu.hk.Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Kowloon Tong, Hong Kong. kinglai@cityu.edu.hk.Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Kowloon Tong, Hong Kong. kinglai@cityu.edu.hk.Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Kowloon Tong, Hong Kong. kinglai@cityu.edu.hk.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32022071

Citation

Li, Xiaoting, et al. "An Ultraflexible Polyurethane Yarn-based Wearable Strain Sensor With a Polydimethylsiloxane Infiltrated Multilayer Sheath for Smart Textiles." Nanoscale, vol. 12, no. 6, 2020, pp. 4110-4118.
Li X, Koh KH, Farhan M, et al. An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles. Nanoscale. 2020;12(6):4110-4118.
Li, X., Koh, K. H., Farhan, M., & Lai, K. W. C. (2020). An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles. Nanoscale, 12(6), 4110-4118. https://doi.org/10.1039/c9nr09306k
Li X, et al. An Ultraflexible Polyurethane Yarn-based Wearable Strain Sensor With a Polydimethylsiloxane Infiltrated Multilayer Sheath for Smart Textiles. Nanoscale. 2020 Feb 14;12(6):4110-4118. PubMed PMID: 32022071.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles. AU - Li,Xiaoting, AU - Koh,Keng Huat, AU - Farhan,Musthafa, AU - Lai,King Wai Chiu, Y1 - 2020/02/05/ PY - 2020/2/6/pubmed PY - 2020/2/6/medline PY - 2020/2/6/entrez SP - 4110 EP - 4118 JF - Nanoscale JO - Nanoscale VL - 12 IS - 6 N2 - Waterproof fiber-based strain sensors with a high gauge factor and outstanding stability are essential for smart textiles, wearable devices and biomedical electronics. In this work, we demonstrate a highly flexible, stretchable, sensitive, and waterproof core-sheath structure strain sensor with a relatively wide strain-sensing range fabricated by a simple approach. Such a core-sheath structure is composed of a superelastic core material polyurethane (PU) yarn; a highly conductive multilayer sheath material, namely, graphene nanosheets/thin gold film/graphene nanosheets (GNSs/Au/GNSs); and a thin polydimethylsiloxane (PDMS) wrapping layer. The combination of the PU yarn, multilayer GNSs/Au/GNSs, and PDMS wrapping layer enables the strain sensor to achieve high flexibility and stretchability, high sensitivity, broad strain-sensing range, and good waterproof property simultaneously due to the infiltration of PDMS into the multilayer during stretching. Particularly, the yarn strain sensor exhibits a high gauge factor (GF: 661.59), outstanding stability with an applied strain of 50% for approximately 10 000 stretch/release cycles, and superior water resistance. Moreover, it can be readily integrated into textiles, including medical textile bandages and textile gloves, for monitoring various human motions (e.g., phonation, pulse, finger bending, and walking) and effectively control a hand robot. Therefore, strain sensors show considerable potential in textile, wearable, and biomedical electronics for healthcare-related applications, such as disease diagnosis, preventive healthcare, and rehabilitation care, and robot controlling-related applications (e.g., controlling a hand robot to catch some objects). SN - 2040-3372 UR - https://www.unboundmedicine.com/medline/citation/32022071/An_ultraflexible_polyurethane_yarn_based_wearable_strain_sensor_with_a_polydimethylsiloxane_infiltrated_multilayer_sheath_for_smart_textiles_ L2 - https://doi.org/10.1039/c9nr09306k DB - PRIME DP - Unbound Medicine ER -
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