Smart healthcare sensor with dual autonomous self-healing, repeatable skin adhesion/detachment, and hydrophilic/hydrophobic Janus surface for aquatic ambulatory electrophysiological monitoring

Wang, Ziyi; Ruan, Renjie; Lin, Guosheng; He, Shaohua; Liu, Yanyun; Gong, Chenchi; Xiao, Peijie; Chen, Jingyi; Lü, Yi; Cao, Yang; Lin, Xiaocheng; Zhang, Jin

doi:10.1016/j.cej.2023.143603

Cited by 3 publications

(3 citation statements)

References 68 publications

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“…Typically, these devices are attached using adhesive tape, which may not provide long-term stability. An effective solution to this problem is to impart functional groups to the matrix material of the strain sensor, enabling it to have self-adhesive properties, allowing direct adhesion to various surfaces . Sun and co-workers proposed a universal strategy using click chemistry to enhance the interface adhesion between the multifunctional polymer in the conductive layer and the elastic substrate surface.…”

Section: Introductionmentioning

confidence: 99%

“…An effective solution to this problem is to impart functional groups to the matrix material of the strain sensor, enabling it to have self-adhesive properties, allowing direct adhesion to various surfaces. 45 Sun and coworkers 46 proposed a universal strategy using click chemistry to enhance the interface adhesion between the multifunctional polymer in the conductive layer and the elastic substrate surface. This enhanced interface adhesion effectively suppresses the local stress concentration, prevents interface delamination, and promotes the stability of the conductive pathway during long-term usage.…”

Section: Introductionmentioning

confidence: 99%

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Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

Bai,

Jing,

Zhang

et al. 2023

ACS Appl. Polym. Mater.

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Although some progress has been achieved in flexible strain sensors, it is still a big challenge to develop sensors with excellent self-healing capability, adhesive, and recyclable properties for enhanced lifespan, facile operation, and decreased waste pollution in the flexible electronic field. In this study, we successfully synthesized the pyrene-terminated multifunctional polyurethane elastomer called PMFPU based on dynamic covalent bond and noncovalent hydrogen bonds, which integrates exceptional tough mechanical properties (the tensile toughness of 168.4 MJ/m 3 ), excellent self-healing performance (healing efficiency of 96%), superior adhesive property (shear strength as high as 1.46 MPa), and well-performed reprocessability (more than five cycles). Furthermore, we applied PMFPU in the fabrication of stretchable strain sensors based on the π−π stacking interactions between pyrene in PMFPU and carbon nanotubes (CNTs). Based on this unique design, the obtained flexible sensors can dissolve in THF and DMF solvents, enabling the reprocessing ability and avoiding electronic waste pollution. The stretchable strain sensors could detect human movements and facial expressions. Moreover, the sensors can restore stable sensing capabilities even after a repaired process or recyclable process, which is of significant importance for the development of environmentally friendly and highperformance sensors. The fabrication of these functional sensors holds broad application prospects in fields such as medical monitoring, human−machine interaction, and electronic skin.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

Bai,

Jing,

Zhang

et al. 2023

ACS Appl. Polym. Mater.

View full text Add to dashboard Cite

show abstract

“…Sensors typically respond to different strains, such as compression or bending, which can also cause strain sensors to stretch, allowing them to respond to compressive and bending strains. However, the response signals to these strains exhibit the same trend, − making it impossible to distinguish them by the sensor signals. Therefore, it is still a challenge to recognize different strains with unimodal sensors.…”

Section: Introductionmentioning

confidence: 99%

Flexible Sensors with a Multilayer Interlaced Tunnel Architecture for Distinguishing Different Strains

Li,

Gao,

Yao

et al. 2023

ACS Appl. Mater. Interfaces

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Advanced electrospun AgNPs/rGO/PEDOT:PSS/TPU nanofiber electrodes: Stretchable, self-healing, and perspiration-resistant wearable devices for enhanced ECG and EMG monitoring

Li,

Huang,

Chang

et al. 2023

Adv Compos Hybrid Mater

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Smart healthcare sensor with dual autonomous self-healing, repeatable skin adhesion/detachment, and hydrophilic/hydrophobic Janus surface for aquatic ambulatory electrophysiological monitoring

Cited by 3 publications

References 68 publications

Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

Flexible Sensors with a Multilayer Interlaced Tunnel Architecture for Distinguishing Different Strains

Advanced electrospun AgNPs/rGO/PEDOT:PSS/TPU nanofiber electrodes: Stretchable, self-healing, and perspiration-resistant wearable devices for enhanced ECG and EMG monitoring

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