Flexible strain sensors based on silver nanowires and UV-curable acrylate elastomers for wrist movement monitoring

Li, Shuhao; Wu, Wenjin; Chang, Yu; Chen, Weiquan; Liu, Yijie; He, Zifeng; Pu, Yan; Babichuk, Ivan S.; Ye, Terry Tao; Gao, Zhaoli; Yang, Jian

doi:10.1039/d4lf00081a

RSC Appl. Interfaces

2024

DOI: 10.1039/d4lf00081a

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Flexible strain sensors based on silver nanowires and UV-curable acrylate elastomers for wrist movement monitoring

Shuhao Li,

Wenjin Wu,

Yu Chang

et al.

Abstract: This article uses innovative UV-curable acrylate elastomer with AgNWs to develop flexible strain sensors for wrist movement monitoring.

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Cited by 2 publications

References 38 publications

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Tailoring Strain Sensor Performance by Biwetting–Dewetting Assembly

Wang,

Li,

et al. 2024

ACS Appl. Electron. Mater.

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The performance indices of nanomaterial-based strain sensors are typically mutually constrained; however, diverse applications necessitate customizable sensing performance for reliable detection. Programming the performance of strain sensors using simple methods and materials remains a significant challenge. Here, we report a biwetting−dewetting (BWD) assembly method for fabricating programmable strain sensors utilizing silver nanowire (AgNW)-based composites on polydimethylsiloxane (PDMS). The BWD assembly was conducted on a highly heterogeneous PDMS surface achieved by oxidation treatment. Patterned AgNWs can self-assemble on the PDMS via a wetting−dewetting process during spin coating. By leveraging the permeability of the AgNW network, a second ink of adhesive molecules, brittle polymers, MXene, or liquid metal particles can be selectively deposited on the AgNW patterns through the same wetting−dewetting process. The straightforward BWD method provides unparalleled tunability of sensitivity and stretchability, allowing for modulation of sensitivity (gauge factor: 2.3 to 3.1 × 10 6 ) by 2 to 6 orders of magnitude within 100% strain. With this customized performance, the AgNWbased sensors demonstrate reliable detection capabilities for sound vibration and various physiological motions. The BWD method introduces an innovative approach to tailoring strain sensor performance and holds potential applicability in assembling other nanomaterials for stretchable electronics.

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Tailoring Strain Sensor Performance by Biwetting–Dewetting Assembly

Wang,

Li,

et al. 2024

ACS Appl. Electron. Mater.

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High-Stretchable and Transparent Ultraviolet-Curable Elastomer

Chen,

He,

Dai

et al. 2024

Polymers

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This work introduces an ultraviolet (UV)-curable elastomer through the co-polymerization of aliphatic polyurethane acrylate and hydroxypropyl acrylate via UV irradiation. The UV-curable elastomer presents superior mechanical properties (elongation at a break of 2992%) and high transparency (94.8% at 550 nm in the visible light region). A robust hydrogel–elastomer stretchable sensor is fabricated by coating an ionic hydrogel on the surface of an elastomer, which enables real-time monitoring of human motion. In addition, the UV-curable elastomer can be used for 3D printing, as demonstrated by complex lattice structures using a digital light processing 3D printer.

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Flexible strain sensors based on silver nanowires and UV-curable acrylate elastomers for wrist movement monitoring

Abstract: This article uses innovative UV-curable acrylate elastomer with AgNWs to develop flexible strain sensors for wrist movement monitoring.

Cited by 2 publications

References 38 publications

Tailoring Strain Sensor Performance by Biwetting–Dewetting Assembly

Tailoring Strain Sensor Performance by Biwetting–Dewetting Assembly

High-Stretchable and Transparent Ultraviolet-Curable Elastomer

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