Skin-inspired interlocked microstructures with soft-hard synergistic effect for high-sensitivity and wide-linear-range pressure sensing

Tu, Shiwen; Xi, Yangbin; Cui, Xihua; Xu, Zhiguang; Liu, Zunfeng; Zhu, Yutian

doi:10.1016/j.cej.2024.154083

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.154083

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Skin-inspired interlocked microstructures with soft-hard synergistic effect for high-sensitivity and wide-linear-range pressure sensing

Shiwen Tu,

Yangbin Xi,

Xihua Cui

et al.

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2024

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Cited by 2 publications

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Degradable Multilayer Fabric Sensor with Wide Detection Range and High Linearity

Huang,

Xie,

et al. 2024

ACS Appl. Mater. Interfaces

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Integration of multiple superior features into a single flexible pressure sensor would result in devices with greater versatility and utility. To apply the device to a variety of scenarios and solve the problem of accumulation of e-waste in the environment, it is highly desirable to combine degradability and wide-range linearity characteristics in a single device. Herein, we reported a degradable multilayer fabric (DMF) consisting of an ellipsoidal carbon nanotube (ECNT) and polyvinylpyrrolidone/ cellulose acetate electrospun fibers (PEF). The alternative layer-bylayer stacking of the ECNT and PEF notably accelerates the sensitivity toward pressure. The optimized device demonstrated a sensitivity of 3.38 kPa −1 over a wide measurement range from 0.1 to 500 kPa, as well as great mechanical stability over 2000 cycles. A good degradation performance was confirmed by both Fourier transform infrared (FTIR) characterization and decomposition experiments in sodium hydroxide solution. The fabricated sensor is capable of precepting a variety of physiological scenarios including subtle arterial pulse, dancing training, walking postures, and accidental falls. This work throws light onto the fundamental understanding of the mechanical interfacial coupling in piezoresistive materials and provides possibilities for the design and development of on-demand wearable electronics.

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Degradable Multilayer Fabric Sensor with Wide Detection Range and High Linearity

Huang,

Xie,

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

Recent advances in flexible iontronic pressure sensors: materials, microstructure designs, applications, and opportunities

Wang,

Chen,

et al. 2024

J. Mater. Chem. C

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Skin-inspired interlocked microstructures with soft-hard synergistic effect for high-sensitivity and wide-linear-range pressure sensing

Cited by 2 publications

References 53 publications

Degradable Multilayer Fabric Sensor with Wide Detection Range and High Linearity

Degradable Multilayer Fabric Sensor with Wide Detection Range and High Linearity

Recent advances in flexible iontronic pressure sensors: materials, microstructure designs, applications, and opportunities

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