Research progress of flexible wearable pressure sensors

Wang, Xiangfu; Yu, Jian; Cui, Yan; Li, Wei

doi:10.1016/j.sna.2021.112838

Cited by 110 publications

(54 citation statements)

References 85 publications

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“…Rigidity, fragility, poor sensitivity, small sensing span, limited tensile capacity, and lowresolution limit traditional semiconductor and metal-based P sensing apparatuses, making them challenging to use in utilizations requiring flexile contact or wearable apparatuses [98]. As a result, flexile P sensing apparatuses appropriate for arbitrarily curved surfaces have been investigated, and they have significant implications in the sectors of human-machine interface, wearable electronics, electronic skin, and therapy [99]. Flexile P sensing apparatuses, in contrast, have problems in terms of high sensitivity, high resolution, rapid response, good stability, and strong durability to successfully adapt to these developing applications.…”

Section: Flexile Wearable P Sensing Apparatusesmentioning

confidence: 99%

Revolution in Flexible Wearable Electronics for Temperature and Pressure Monitoring—A Review

2022

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In the last few decades, technology innovation has had a huge influence on our lives and well-being. Various factors of observing our physiological characteristics are taken into account. Wearable sensing tools are one of the most imperative sectors that are now trending and are expected to grow significantly in the coming days. Externally utilized tools connected to any human to assess physiological characteristics of interest are known as wearable sensors. Wearable sensors range in size from tiny to large tools that are physically affixed to the user and operate on wired or wireless terms. With increasing technological capabilities and a greater grasp of current research procedures, the usage of wearable sensors has a brighter future. In this review paper, the recent developments of two important types of wearable electronics apparatuses have been discussed for temperature and pressure sensing (Psensing) applications. Temperature sensing (Tsensing) is one of the most important physiological factors for determining human body temperature, with a focus on patients with long-term chronic conditions, normally healthy, unconscious, and injured patients receiving surgical treatment, as well as the health of medical personnel. Flexile Psensing devices are classified into three categories established on their transduction mechanisms: piezoresistive, capacitive, and piezoelectric. Many efforts have been made to enhance the characteristics of the flexible Psensing devices established on these mechanisms.

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Section: Flexile Wearable P Sensing Apparatusesmentioning

confidence: 99%

Revolution in Flexible Wearable Electronics for Temperature and Pressure Monitoring—A Review

2022

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“…With the rapid development of emerging industries such as touchable displays, 1 electronic skins, 2 intelligent robotics, 3 and wearable devices, 4 sensors as the most important components have been paid enormous attention. According to the difference of function, pressure sensors can be divided into piezoresistive pressure sensor, 5,6 capacitive pressure sensor, 7 and piezoelectric pressure sensor 8 .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of conductive and superhydrophobic poly(lactic acid) nonwoven fabric for human motion detection

Zeng

Lai

et al. 2022

J of Applied Polymer Sci

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In recent years, piezoresistive pressure sensors with superhydrophobicity have aroused considerable attention. In addition, to comply with “sustainable development” strategy, the sensors fabricated with eco‐friendly materials is of great theoretical and practical significance. Herein, tannic acid (TA) was first absorbed on the surface of poly(lactic acid) (PLA) nonwoven fabric by simple dipping method. After that, silver (Ag) particles were in situ generated on the surface to construct roughness with the reduction role of TA by immersing the fabric into silver nitrate aqueous solution. Finally, n‐lauryl mercaptan was grafted on the Ag particles via Ag–S bonds to provide low surface energy, and a conductive and superhydrophobic PLA (CSPLA) nonwoven fabric was fabricated. The obtained CSPLA nonwoven fabric had a high water contact angle of 150.3°. The fabric‐based piezoresistive pressure sensor possessed high sensitivity, fast response, good stability, and excellent reusability, and was successfully applied for detecting various human motions including voice recognition, joint bending, stomping, walking, and jumping. The fabricated sensor has great application potential in the fields of touchable displays, electronic skins, intelligent robotics, and wearable devices.

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“…3−5 Taking into account the implementation of a reliable and responsive network, the ubiquitous installation of sensors connected to the network will be a critical step toward the even faster growth of the IoT concept. 6 In particular, pressure and deformation sensors are among the most required ones due to their widespread applicability, 7 being based on different pressure sensing principles including piezoresistive, piezoelectric, triboelectric, or capacitive, among others. 8,9 Piezoresistive sensors allow to transduce an external pressure or deformation into an electrical resistance variation and are typically characterized by high adaptability, simple manufacturing, and low energy consumption.…”

Section: ■ Introductionmentioning

confidence: 99%

Carrageenan-Based Hybrid Materials with Ionic Liquids for Sustainable and Recyclable Printable Pressure Sensors

Serra

Pereira

Correia

et al. 2022

ACS Sustainable Chem. Eng.

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For reducing the environmental impact of electronic systems (e-waste), increasingly implemented in the scope of the digitalization of society, this work reports on the development of a sustainable pressure sensor based on the combination of natural polymer carrageenan and ionic liquid (IL) 1-butyl-3-methylimidazolium tetrachloroferrate ([Bmim][FeCl 4 ]). Different IL contents were incorporated into the carrageenan matrix (10, 20, and 40 wt %) to evaluate the influence of IL content on the final properties of the hybrid materials. No variations are induced in the chemical structure of carrageenan by the inclusion of the IL. On the other hand, the thermal stability of the polymer decreases with increasing IL content, as well as the Young modulus that decreases from 748 MPa for pristine carrageenan to 437 MPa for the composite with 40 wt % IL content. The ionic conductivity increases up to 8.74 × 10 −9 S/cm for the sample comprising 40 wt % IL. The recyclability of the developed materials has been accessed, and the potential of the blends for the development of printable pressure sensors has been demonstrated.

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Research progress of flexible wearable pressure sensors

Cited by 110 publications

References 85 publications

Revolution in Flexible Wearable Electronics for Temperature and Pressure Monitoring—A Review

Revolution in Flexible Wearable Electronics for Temperature and Pressure Monitoring—A Review

Fabrication of conductive and superhydrophobic poly(lactic acid) nonwoven fabric for human motion detection

Carrageenan-Based Hybrid Materials with Ionic Liquids for Sustainable and Recyclable Printable Pressure Sensors

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