Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications

Yin, Rui; Yang, Shuaiyuan; Li, Qianming; Zhang, Shuaidi; Liu, Hu; Han, Jian; Liu, Chuntai; Shen, Changyu

doi:10.1016/j.scib.2020.02.020

Cited by 267 publications

(156 citation statements)

References 60 publications

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“…Cellulose can be incorporated with functional inorganic and organic materials to develop high-performance flexible sensors [ 81 , 82 , 83 , 84 , 85 , 86 , 87 ]. For example, a conductive Ag nanowires (AgNWs)/cellulose nanofibers (CNFs) nanopaper was applied in flexible sensors by a solution blending and vacuum filtration method [ 81 ]. A tensile strain sensor with the AgNWs/CNFs nanopaper sandwiched between two thermoplastic polyurethane (TPU) films presented an ultralow detection limit of 0.2%, good stability and durability after 500 strain cycles.…”

Section: Applications Of Biopolymers-based E-skins and Flexible Stmentioning

confidence: 99%

Recent Advances in Natural Functional Biopolymers and Their Applications of Electronic Skins and Flexible Strain Sensors

Wang

Sun

et al. 2021

Polymers

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In order to replace nonrenewable resources and decrease electronic waste disposal, there is a rapidly rising demand for the utilization of reproducible and degradable biopolymers in flexible electronics. Natural biopolymers have many remarkable characteristics, including light weight, excellent mechanical properties, biocompatibility, non-toxicity, low cost, etc. Thanks to these superior merits, natural functional biopolymers can be designed and optimized for the development of high-performance flexible electronic devices. Herein, we provide an insightful overview of the unique structures, properties and applications of biopolymers for electronic skins (e-skins) and flexible strain sensors. The relationships between properties and sensing performances of biopolymers-based sensors are also investigated. The functional design strategies and fabrication technologies for biopolymers-based flexible sensors are proposed. Furthermore, the research progresses of biopolymers-based sensors with various functions are described in detail. Finally, we provide some useful viewpoints and future prospects of developing biopolymers-based flexible sensors.

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Section: Applications Of Biopolymers-based E-skins and Flexible Stmentioning

confidence: 99%

Recent Advances in Natural Functional Biopolymers and Their Applications of Electronic Skins and Flexible Strain Sensors

Wang

Sun

et al. 2021

Polymers

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“…Owing to the flexibility and stretchability of the polymer matrix, CPCs also have great potentials for the detection of various external stimuli (tensile, compression, organic vapor, temperature, etc.) based on the reconstruction of conductive networks, which induced significant resistance variation [6][7][8]. Generally, CPCs are fabricated through combining conductive fillers (Ag nanowire, carbon nanotube [9], graphene [10], etc.)…”

Section: Introductionmentioning

confidence: 99%

Study on the forming and sensing properties of laser-sintered TPU/CNT composites for plantar pressure sensors

Zhuang

Guo

et al. 2021

Int J Adv Manuf Technol

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Conductive polymer composites (CPCs) combining with specific microstructures (micropores, microcracks, etc.) can exhibit unique resistance response changes, which can be widely regarded as an effective way to improve sensing performance. This study takes advantage of the characteristics of the formation of tiny pores between crystal grains during selective laser sintering (SLS) processing to introduce a microporous structure into the thermoplastic polyurethane (TPU)/carbon nanotube (CNT) sensing element to prepare a three-dimensional porous conductive structure. The effect of the SLS process on sensing sensitivity, accuracy, and density was studied, and its sensing and forming mechanism were discussed. By adjusting SLS process parameters to control the performance of porous structure sensor elements, a final TPU/CNT sensor element with a wide pressure detection range, high sensitivity, a fast response time, and good stability and durability was developed. Finally, the optimal performance of the developed flexible pressure sensor was successfully used to detect the pressure distribution of the human foot. This study provided a simple and effective research method to develop high-performance flexible pressure sensors.

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“…To address this issue, a new class of materials called "nanocomposite (NC) materials" are being investigated. [35][36][37][38][39] This new class of material is a mixture of viscoelastic polymer matrix (organic) and conductive fillers (inorganic) and have the potential to fulfil the requirements of wearable mechanical strain sensors. These conductive polymer composite materials can be realized using carbonaceous nanomaterials (e.g., carbon nanotubes [CNTs], [38][39][40][41][42][43][44] graphene [45] ), inorganic metallic nanomaterials (e.g., silver nanowires [AgNWs], [37,46] and nanoparticles [47] ), hydrogels, [48,49] etc.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the percolation theory, [55] NCs can achieve an insulator/conductor transition when the filler content is high enough to build up the percolated conductive networks throughout the polymer matrix. [51] Among a variety of filler materials investigated, 1D conductive nanomaterial, such as CNTs [38][39][40][41][42][43][44] and metallic nanowires (NWs), [37,46] have drawn significant interest to realize NC for strain sensing applications. Interest in CNTs has been mainly driven because of its excellent mechanical properties, chemical inertness, and low cost.…”

Section: Introductionmentioning

confidence: 99%

1D Nanomaterial‐Based Highly Stretchable Strain Sensors for Human Movement Monitoring and Human–Robotic Interactive Systems

Dahiya

Gil

Thireau

et al. 2020

Adv Elect Materials

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variety of flexible electronic devices such as tattoo-like sensory skin patches, [1-3] energy harvesters, [4] energy storage elements, [5,6] stretchable interconnects. [7] The astonishing progress in the technologies mentioned above have enabled a new technological drive called "Internet-of-Medical-Things (IoMT)," linking wearable devices/ sensors into a communication network for real-time or periodic patient-doctor communications. [8] The IoMT will help people to better monitor their health status by collecting subtle vital signs modifications and transferring to healthcare service providers. Part of the ongoing research efforts to develop IoMT is focused on the development of wearable sensors that can be embedded in clothing, [9-11] wrist watches, patches [12] and bands, [13-16] contact lenses, [17-21] tattoo-like sensory skin patches (electronic skin), [2,22] etc. to enable around-the-clock vital signs monitoring, human-machine interactive systems, [2] and as bionic ligaments in soft robotics. [23] Among various types of wearable mechanical sensors such as piezoresistive, piezoelectric, and capacitive, the piezoresistive-based strain sensors are gaining a lot of interest as they provide high sensitivity with simple device design and readout circuits [24-30] for vital signs monitoring and soft robotics. Piezoresistive strain sensors are based on the change of electrical properties of the material when subjected to mechanical deformation. Piezoresistive This paper describes a facile strategy of micromolding-in-capillary process to fabricate stretchable strain sensors wherein, the sensing material is wrapped within silicone rubber (Dragon Skin [DS]) to form a sandwichlike structure. Two different 1D sensing materials are exploited to fabricate and study strain sensing performance of such device structure, namely multi-walled carbon nanotubes (MWCNTs) and silver nanowires (AgNWs). The fabricated strain sensors using MWCNT exhibits wide sensing range (2-180%), and moderately high sensing performance with outstanding durability (over 6000 cycles). It is found that MWCNT presents a strong straindependent character in the 45-120% elongation regime. On the other hand, very high gauge factor of >10 6 is achieved using AgNWs at 30% strain with good stability (over 100 cycles). Sensing mechanisms for both 1D conductive sensing materials are discussed. They can be applied for human motion monitoring such as finger, knee, and wrist bending movements to enable human physiological parameters to be registered and analyzed continuously. They are also employed in multichannel and interactive electronic system to be used as a control mechanism for teleoperation for robotic end-effectors. The developed sensors have potential applications in health diagnosis and human-machine interaction.

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Flexible conductive Ag nanowire/cellulose nanofibril hybrid nanopaper for strain and temperature sensing applications

Cited by 267 publications

References 60 publications

Recent Advances in Natural Functional Biopolymers and Their Applications of Electronic Skins and Flexible Strain Sensors

Recent Advances in Natural Functional Biopolymers and Their Applications of Electronic Skins and Flexible Strain Sensors

Study on the forming and sensing properties of laser-sintered TPU/CNT composites for plantar pressure sensors

1D Nanomaterial‐Based Highly Stretchable Strain Sensors for Human Movement Monitoring and Human–Robotic Interactive Systems

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