Facile preparation of micropatterned thermoplastic surface for wearable capacitive sensor

Zhang, Yajie; Gao, Miao; Gao, Chaojun; Ge, Zheng; Ji, Youxin; Dai, Kun; Mi, Liwei; Zhang, Dianbo; Liu, Chuntai; Shen, Changyu

doi:10.1016/j.compscitech.2022.109863

Cited by 20 publications

(6 citation statements)

References 45 publications

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“…Figure g shows the outstanding repeatability and superior stability when loading/unloading for up to 10,000 cycles. In the end, Figure h compares the sensitivity, detection range, and response time between the fabric tactile sensor developed in this work and those reported in the literature − (Table S1), indicating that the high-level sensing performance is achieved in the field. The high sensitivity, wide detection range, fast response time, low detection limit, good dynamic response, and excellent stability give the developed fabric tactile sensor the potential to be used for practical high-accuracy and long-term wearable sensing applications.…”

Section: Resultsmentioning

confidence: 58%

Flexible, Breathable, and Hydrophobic Iontronic Tactile Sensors Based on a Nonwoven Fabric Platform for Permeable and Waterproof Wearable Sensing Applications

Sun,

Jiang,

Sun

et al. 2023

ACS Appl. Electron. Mater.

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Flexible tactile sensors are under high pursuit for wearable electronics toward healthcare monitoring, human− machine interaction, and artificial intelligence. Permeability and hydrophobicity are emerging unique properties and require significant dedication of research efforts. Herein, we develop a type of flexible, breathable, and waterproof iontronic tactile sensor based on a nonwoven fabric platform using a facile dip-drying and solution-spraying technique. The intrinsic open-ended porous structure of the fabric offers air permeability (∼224.9 mm s −1 ), and the stearic acid microsheets decorated on the outside of the sensor provides effective hydrophobic protection (water contact angle ∼151.9°). The designed electrode-to-electrolyte interfacing microstructures of MXene microspheres and nanosheets on the fabric electrodes and the hierarchical structures with conical secondary features of chrysanthemum pollen on the fabric electrolyte endow the sensor with a high sensitivity of 214.92 kPa −1 and a wide detection range of 0−45 kPa. Fast response time, low detection limit, good dynamic response, and excellent stability are also achieved. With the help of a home-built mechatronic sensing system, the developed fabric tactile sensor can be practically used either as sensor units for human health status monitoring and motion detection or as a sensor array for spatial pressure distribution identification of human−object interaction.

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Section: Resultsmentioning

confidence: 58%

Flexible, Breathable, and Hydrophobic Iontronic Tactile Sensors Based on a Nonwoven Fabric Platform for Permeable and Waterproof Wearable Sensing Applications

Sun,

Jiang,

Sun

et al. 2023

ACS Appl. Electron. Mater.

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“…After complete cooling, the TPU film with the micropattern array is peeled off from the template and serves as the dielectric layer. Subsequently, it is sandwiched between two ITO/PET electrodes to assemble a capacitive sensor based on the TPU/ITO/PET composite material. , Figure c shows the fabrication of a highly sensitive, noninvasive, and skin-adherent sensor made of a stable, flexible piezoelectric film (GaN-based F-PEMS). First, the edge regions of the single-crystalline III-N thin film damaged within approximately 1 mm during the scribing process are removed.…”

Section: Preparation Methodsmentioning

confidence: 99%

Section: Preparation Methodsmentioning

confidence: 99%

Toward the Next Generation Human–Machine Interaction: Headworn Wearable Devices

Gao,

Jiang,

Zhou

et al. 2024

Anal. Chem.

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“…(c) Piezo-capacitive effect in the (ci) micropatterned surface and capacitive sensor composed of the composites of TPU dielectric layer and ITO/PET electrode and (cii) its sensing mechanism under pressure and bending, (ciii) demonstration of human physiological monitoring and (civ) human respiratory monitoring, (cv) the schematic of capacitive sensors applied in sign language interpretation, (cvi-cviii) production of Morse codes by pressing the capacitive sensor, and monitoring signal output by smart glove under different hand gestures. Reproduced with permission from [107]. (d) Triboelectric effect in a (di) flexible self-powered ultrasensitive pulse sensor based on triboelectric active sensor of nanostructured Kapton film and Cu film and (dii) demonstration of the signal output pressed on various artery positions.…”

Section: Sensors' Performance Characteristicsmentioning

confidence: 99%

The Emergence of AI-Based Wearable Sensors for Digital Health Technology: A Review

Shajari,

Kuruvinashetti,

Komeili

et al. 2023

Sensors

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Disease diagnosis and monitoring using conventional healthcare services is typically expensive and has limited accuracy. Wearable health technology based on flexible electronics has gained tremendous attention in recent years for monitoring patient health owing to attractive features, such as lower medical costs, quick access to patient health data, ability to operate and transmit data in harsh environments, storage at room temperature, non-invasive implementation, mass scaling, etc. This technology provides an opportunity for disease pre-diagnosis and immediate therapy. Wearable sensors have opened a new area of personalized health monitoring by accurately measuring physical states and biochemical signals. Despite the progress to date in the development of wearable sensors, there are still several limitations in the accuracy of the data collected, precise disease diagnosis, and early treatment. This necessitates advances in applied materials and structures and using artificial intelligence (AI)-enabled wearable sensors to extract target signals for accurate clinical decision-making and efficient medical care. In this paper, we review two significant aspects of smart wearable sensors. First, we offer an overview of the most recent progress in improving wearable sensor performance for physical, chemical, and biosensors, focusing on materials, structural configurations, and transduction mechanisms. Next, we review the use of AI technology in combination with wearable technology for big data processing, self-learning, power-efficiency, real-time data acquisition and processing, and personalized health for an intelligent sensing platform. Finally, we present the challenges and future opportunities associated with smart wearable sensors.

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Facile preparation of micropatterned thermoplastic surface for wearable capacitive sensor

Cited by 20 publications

References 45 publications

Flexible, Breathable, and Hydrophobic Iontronic Tactile Sensors Based on a Nonwoven Fabric Platform for Permeable and Waterproof Wearable Sensing Applications

Flexible, Breathable, and Hydrophobic Iontronic Tactile Sensors Based on a Nonwoven Fabric Platform for Permeable and Waterproof Wearable Sensing Applications

Toward the Next Generation Human–Machine Interaction: Headworn Wearable Devices

The Emergence of AI-Based Wearable Sensors for Digital Health Technology: A Review

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