An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles

Li, Xiaoting; Koh, Keng Huat; Farhan, Musthafa; Lai, King Wai Chiu

doi:10.1039/c9nr09306k

Cited by 89 publications

(44 citation statements)

References 33 publications

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“…Due to their outstanding properties, GNP-filled polymer composites have been widely investigated in various engineering applications, including electromagnetic compatibility [ 18 , 19 , 20 ], structural sensing and monitoring [ 21 , 22 , 23 , 24 ]. Different polymer matrices have been explored, such as polystyrene [ 17 , 20 ], epoxy-based vinyl ester resins [ 18 , 19 , 24 ], polydimethylsiloxane [ 5 , 22 ], polyurethane [ 25 ], and polyvinylidene fluoride (PVDF) [ 23 , 24 , 26 , 27 , 28 ]. Among them, PVDF is garnering ever growing interest for sensing applications owing to its uncommon chemical resistance and thermal mechanical physical properties, including piezoresistive and piezoelectric ones [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

“…As a demonstration, the nanocomposite films are integrated in commercial hand gloves, thus realizing smart gloves able to detect even small proximal interphalangeal joint movements of the index finger, as little as 5°. Other carbon-based flexible nanocomposite films recently integrated in sensor-based smart gloves have not been tested for bending angles lower than 30° [ 5 ] and most of them are characterized only for fully finger bend movements [ 25 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

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Waterproof Graphene-PVDF Wearable Strain Sensors for Movement Detection in Smart Gloves

Bidsorkhi

D’Aloia

Bellis

et al. 2021

Sensors

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In this work, new highly sensitive graphene-based flexible strain sensors are produced. In particular, polyvinylidene fluoride (PVDF) nanocomposite films filled with different amounts of graphene nanoplatelets (GNPs) are produced and their application as wearable sensors for strain and movement detection is assessed. The produced nanocomposite films are morphologically characterized and their waterproofness, electrical and mechanical properties are measured. Furthermore, their electromechanical features are investigated, under both stationary and dynamic conditions. In particular, the strain sensors show a consistent and reproducible response to the applied deformation and a Gauge factor around 30 is measured for the 1% wt loaded PVDF/GNP nanocomposite film when a deformation of 1.5% is applied. The produced specimens are then integrated in commercial gloves, in order to realize sensorized gloves able to detect even small proximal interphalangeal joint movements of the index finger.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Waterproof Graphene-PVDF Wearable Strain Sensors for Movement Detection in Smart Gloves

Bidsorkhi

D’Aloia

Bellis

et al. 2021

Sensors

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“…For textile supercapacitors, one of the major difficulties lies in the realization of conductive electrodes on wavy woven fabrics. Metal wires or meshes have been widely used as electrodes for wearable energy devices; however, the heavy weight and stiffness of the metal wires or meshes make the textile uncomfortable [79]. Nevertheless, for wearable applications, flexible and stretchable electronic devices are very appealing.…”

Section: (3) Comfortabilitymentioning

confidence: 99%

Future Trend in Wearable Electronics in the Textile Industry

Kan

Lam

2021

Applied Sciences

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Smart wearable textiles can sense, react, and adapt themselves to external conditions or stimuli, and they can be divided into active and passive smart wearable textiles, which can work with the human brain for cognition, reasoning, and activating capacity. Wearable technology is among the fastest growing parts of health, entertainment, and education. In the future, the development of wearable electronics will be focused on multifunctional, user-friendly, and user acceptance and comfort features and shall be based on advanced electronic textile systems.

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“…Organic coatings can leverage substrate corrosion and damage resistance. For example, the use of PMMA coating increased adhesion between graphene and PDMS substrate [410] and PVA coatings increased adhesion between GNS and PU yarn [411]. Also, coating, as a self-protection strategy, can extend device longevity by providing a self-degradation property.…”

Section: Self-protectionmentioning

confidence: 99%

Blood Pressure Sensors: Materials, Fabrication Methods, Performance Evaluations and Future Perspectives

Al-Qatatsheh

Morsi

Zavabeti

et al. 2020

Sensors

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Advancements in materials science and fabrication techniques have contributed to the significant growing attention to a wide variety of sensors for digital healthcare. While the progress in this area is tremendously impressive, few wearable sensors with the capability of real-time blood pressure monitoring are approved for clinical use. One of the key obstacles in the further development of wearable sensors for medical applications is the lack of comprehensive technical evaluation of sensor materials against the expected clinical performance. Here, we present an extensive review and critical analysis of various materials applied in the design and fabrication of wearable sensors. In our unique transdisciplinary approach, we studied the fundamentals of blood pressure and examined its measuring modalities while focusing on their clinical use and sensing principles to identify material functionalities. Then, we carefully reviewed various categories of functional materials utilized in sensor building blocks allowing for comparative analysis of the performance of a wide range of materials throughout the sensor operational-life cycle. Not only this provides essential data to enhance the materials’ properties and optimize their performance, but also, it highlights new perspectives and provides suggestions to develop the next generation pressure sensors for clinical use.

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An ultraflexible polyurethane yarn-based wearable strain sensor with a polydimethylsiloxane infiltrated multilayer sheath for smart textiles

Abstract: This paper proposes an ultraflexible polyurethane yarn-based strain sensor. It demonstrates superior performance and enormous potential in monitoring full-range human motions and manipulate a hand robot to move, catch, and grasp some objects.

Cited by 89 publications

References 33 publications

Waterproof Graphene-PVDF Wearable Strain Sensors for Movement Detection in Smart Gloves

Waterproof Graphene-PVDF Wearable Strain Sensors for Movement Detection in Smart Gloves

Future Trend in Wearable Electronics in the Textile Industry

Blood Pressure Sensors: Materials, Fabrication Methods, Performance Evaluations and Future Perspectives

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