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Yang D, Zhao K, Yang R, Zhou SW, Chen M, Tian H, Qu DH. A Rational Design of Bio-Derived Disulfide CANs for Wearable Capacitive Pressure Sensor. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403880. [PMID: 38723049 DOI: 10.1002/adma.202403880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/30/2024] [Indexed: 05/21/2024]
Abstract
Classic approaches to integrate flexible capacitive sensor performance are to on-demand microstructuring dielectric layers and to adjust dielectric material compositions via the introduction of insoluble carbon additives (to increase sensitivity) or dynamic interactions (to achieve self-healing). However, the sensor's enhanced performances often come with increased material complexity, discouraging its circular economy. Herein, a new intrinsic self-healable, closed-loop recyclable dielectric layer material, a fully nature-derived dynamic covalent poly(disulfide) decorated with rich H bonding and metal-catechol complexations is introduced. The polymer network possesses a mechanically ductile character with an Arrhenius-type temperature-dependent viscoelasticity. The assembled capacitive pressure sensor is able to achieve a sensitivity of up to 9.26 kPa-1, fast response/recovery time of 32/24 ms, and can deliver consistent signals of continuous consecutive cycles even after being self-healed or closed-loop recycled for real-time detection of human motions. This is expected to be of high interest for current capacitive sensing research to move toward a life-like, high performance, and circular economy direction.
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Affiliation(s)
- Ding Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Kai Zhao
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Rulin Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Shang-Wu Zhou
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Meng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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Weldemhret TG, Park YT, Song JI. Recent progress in surface engineering methods and advanced applications of flexible polymeric foams. Adv Colloid Interface Sci 2024; 326:103132. [PMID: 38537566 DOI: 10.1016/j.cis.2024.103132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/15/2024] [Accepted: 03/10/2024] [Indexed: 04/13/2024]
Abstract
Polymeric foams, also known as three-dimensional (3D) polymeric sponges, are lightweight, flexible, compressible, and possess a high surface area compared with other bulk polymers. These sponges have traditionally been used for mattresses or seat cushions in homes, offices, aircraft, automobiles, and trains, and to insulate against heat, electricity, and noise. Recently, the demand for modern materials has expanded the application of polymeric foams to various high-value technologies, including in areas that need high flame retardancy, flame sensors, oil/water separation, metal adsorption, solar steam generation, piezoresistivity, electromagnetic interference shielding, thermal energy storage, catalysis, supercapacitors, batteries, and triboelectric energy harvesting. Proper modification of foams is a prerequisite for their use in high-value applications. Several new strategies for the surface coating of 3D porous foams and novel emerging applications have been recently developed. Therefore, in this review, current advances in the field of surface coating and the application of 3D polymeric foams are discussed. A brief background on 3D polymeric foams, including the unique properties and benefits of polymeric sponges and their routes of synthesis, is presented. Different coating strategies for polymeric sponges are discussed, and their advantages and drawbacks are highlighted. Different advanced applications of polymeric sponges, in conjunction with specific and detailed examples of the above-mentioned applications, are also described. Finally, challenges and potential applications related to the coating of polymeric foams are discussed. We envisage that this review will be useful to facilitate further research, promote continued efforts on the advanced applications mentioned above, and provide new stimuli for the design of novel polymeric sponges for future modern applications.
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Affiliation(s)
- Teklebrahan Gebrekrstos Weldemhret
- Department of Mechanical Engineering, Changwon National University, 20 Changwondaehak-ro, Uichang-gu, Changwon, Gyeongsangnam-do 51140, Republic of Korea; Division of Physics and Semiconductor Science, Dongguk University, Seoul 04620, Republic of Korea
| | - Yong Tae Park
- Department of Mechanical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin, Gyeonggi-do 17058, Republic of Korea.
| | - Jung Il Song
- Department of Mechanical Engineering, Changwon National University, 20 Changwondaehak-ro, Uichang-gu, Changwon, Gyeongsangnam-do 51140, Republic of Korea.
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Ma J, Yan R, Wo X, Cao Y, Yu X, Li A, Huang J, Li F, Luo L, Zhang Q. Synthesis of Superelastic, Highly Conductive Graphene Aerogel/Liquid Metal Foam and its Piezoresistive Application. Chemistry 2024; 30:e202303594. [PMID: 38278765 DOI: 10.1002/chem.202303594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/25/2024] [Accepted: 01/25/2024] [Indexed: 01/28/2024]
Abstract
Graphene aerogel (GA) has important application potential as piezoresistive sensors due to its low density, high conductivity, high porosity, and good mechanical properties. However, the fabrication of GA-based sensors with good mechanical properties and excellent sensing performance is still challenging. Herein, liquid- metal-modified GAs (GA/LM) are proposed for the development of an excellent GA-based sensor. GA/LM with three-dimensional interconnected layered structure exhibits excellent compressive stress of 41 KPa and fast response time (<20 ms). While generally flexible GA composites cannot be compressed beyond 80 % strain without plastic deformation, GA/LM demonstrates a high compressive strength of 60 kPa under a strain of 90 %. A real-time pressure sensor was fabricated based on GA/LM-2 to monitor swallowing, pulse beating, finger, wrist and knee bending, and even plantar pressure during walking. These excellent features enable potential applications in health detection.
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Affiliation(s)
- Jinlong Ma
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
| | - Rui Yan
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
| | - Xiaoye Wo
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
| | - Yanpeng Cao
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
| | - Xiao Yu
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
| | - Aijun Li
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
- Zhejiang Institute of Advanced Materials, Shanghai University, 314113, Jiashan, PR China
| | - Jian Huang
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
- Zhejiang Institute of Advanced Materials, Shanghai University, 314113, Jiashan, PR China
| | - Fenghua Li
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, 130022, Changchun, Jilin, China
| | - Liqiang Luo
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
| | - Qixian Zhang
- School of Materials Science and Engineering, Shanghai University, 200436, Shanghai, PR China
- Shaoxing Institute of Technology, Shanghai University, 312000, Shaoxing, PR China
- Zhejiang Institute of Advanced Materials, Shanghai University, 314113, Jiashan, PR China
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Tian H, Li X, Gou GY, Jian JM, Zhu B, Ji S, Ding H, Guo Z, Yang Y, Ren TL. Graphene-based Two-Stage Enhancement Pressure Sensor for Subtle Mechanical Force Monitoring. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1005-1014. [PMID: 38134343 DOI: 10.1021/acsami.3c12422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
The development of pressure sensors with high sensitivity and a low detection limit for subtle mechanical force monitoring and the understanding of the sensing mechanism behind subtle mechanical force monitoring are of great significance for intelligent technology. Here, we proposed a graphene-based two-stage enhancement pressure sensor (GTEPS), and we analyzed the difference between subtle mechanical force monitoring and conventional mechanical force monitoring. The GTEPS exhibited a high sensitivity of 62.2 kPa-1 and a low detection limit of 0.1 Pa. Leveraging its excellent performance, the GTEPS was successfully applied in various subtle mechanical force monitoring applications, including acoustic wave detection, voice-print recognition, and pulse wave monitoring. In acoustic wave detection, the GTEPS achieved a 100% recognition accuracy for six words. In voiceprint recognition, the sensor exhibited accurate identification of distinct voiceprints among individuals. Furthermore, in pulse wave monitoring, GTEPS demonstrated effective detection of pulse waves. By combination of the pulse wave signals with electrocardiogram (ECG) signals, it enabled the assessment of blood pressure. These results demonstrate the excellent performance of GTEPS and highlight its great potential for subtle mechanical force monitoring and its various applications. The current results indicate that GTEPS shows great potential for applications in subtle mechanical force monitoring.
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Affiliation(s)
- He Tian
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Xiaoshi Li
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Guang-Yang Gou
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
| | - Jin-Ming Jian
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Boyi Zhu
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Shourui Ji
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Hengbin Ding
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Zhanfeng Guo
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Yi Yang
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
| | - Tian-Ling Ren
- School of Integrated Circuits & Beijing National Research on Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, China
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Wang YF, Yoshida J, Takeda Y, Yoshida A, Kaneko T, Sekine T, Kumaki D, Tokito S. Printed Composite Film with Microporous/Micropyramid Hybrid Conductive Architecture for Multifunctional Flexible Force Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:63. [PMID: 38202518 PMCID: PMC10781003 DOI: 10.3390/nano14010063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/12/2024]
Abstract
Porous structures and micropatterning surfaces play a crucial role in the development of highly sensitive force sensors. However, achieving these two conductive architectures typically requires the synthesis of complex materials and expensive manufacturing processes. In this study, we introduce a novel conductive composite film featuring a microporous/micropyramid hybrid conductive architecture, which is achieved through a straightforward process of materials mixing and one-step screen printing. By utilizing a deep eutectic solvent in the ink component, micropores are induced in the printed composite, while the mesh of the screen mask acts as a template, resulting in a micropyramid film surface. We have successfully realized highly sensitive flexible force sensors (0.15 kPa-1) with multifunctional capabilities for perceiving normal force and shear force.
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Affiliation(s)
- Yi-Fei Wang
- Research Center for Organic Electronics (ROEL), Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Yamagata, Japan; (J.Y.); (Y.T.); (A.Y.); (T.K.); (T.S.); (D.K.)
| | | | | | | | | | | | | | - Shizuo Tokito
- Research Center for Organic Electronics (ROEL), Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Yamagata, Japan; (J.Y.); (Y.T.); (A.Y.); (T.K.); (T.S.); (D.K.)
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6
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Fortunato M, Pacitto L, Pesce N, Tamburrano A. 3D-Printed Graphene Nanoplatelets/Polymer Foams for Low/Medium-Pressure Sensors. SENSORS (BASEL, SWITZERLAND) 2023; 23:7054. [PMID: 37631589 PMCID: PMC10458629 DOI: 10.3390/s23167054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/27/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023]
Abstract
The increasing interest in wearable devices for health monitoring, illness prevention, and human motion detection has driven research towards developing novel and cost-effective solutions for highly sensitive flexible sensors. The objective of this work is to develop innovative piezoresistive pressure sensors utilizing two types of 3D porous flexible open-cell foams: Grid and triply periodic minimal surface structures. These foams will be produced through a procedure involving the 3D printing of sacrificial templates, followed by infiltration with various low-viscosity polymers, leaching, and ultimately coating the pores with graphene nanoplatelets (GNPs). Additive manufacturing enables precise control over the shape and dimensions of the structure by manipulating geometric parameters during the design phase. This control extends to the piezoresistive response of the sensors, which is achieved by infiltrating the foams with varying concentrations of a colloidal suspension of GNPs. To examine the morphology of the produced materials, field emission scanning electron microscopy (FE-SEM) is employed, while mechanical and piezoresistive behavior are investigated through quasi-static uniaxial compression tests. The results obtained indicate that the optimized grid-based structure sensors, manufactured using the commercial polymer Solaris, exhibit the highest sensitivity compared to other tested samples. These sensors demonstrate a maximum sensitivity of 0.088 kPa-1 for pressures below 10 kPa, increasing to 0.24 kPa-1 for pressures of 80 kPa. Furthermore, the developed sensors are successfully applied to measure heartbeats both before and after aerobic activity, showcasing their excellent sensitivity within the typical pressure range exerted by the heartbeat, which typically falls between 10 and 20 kPa.
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Affiliation(s)
- Marco Fortunato
- Department of Astronautical, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy
| | - Luca Pacitto
- Department of Astronautical, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy
| | - Nicola Pesce
- Department of Astronautical, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy
| | - Alessio Tamburrano
- Department of Astronautical, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, 00184 Rome, Italy
- Nanotechnology Research Center Applied to Engineering (CNIS), Sapienza University of Rome, 00185 Rome, Italy
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7
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Zheng K, Gu F, Wei H, Zhang L, Chen X, Jin H, Pan S, Chen Y, Wang S. Flexible, Permeable, and Recyclable Liquid-Metal-Based Transient Circuit Enables Contact/Noncontact Sensing for Wearable Human-Machine Interaction. SMALL METHODS 2023; 7:e2201534. [PMID: 36813751 DOI: 10.1002/smtd.202201534] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/15/2023] [Indexed: 06/18/2023]
Abstract
The past several years have witnessed a rapid development of intelligent wearable devices. However, despite the splendid advances, the creation of flexible human-machine interfaces that synchronously possess multiple sensing capabilities, wearability, accurate responsivity, sensitive detectivity, and fast recyclability remains a substantial challenge. Herein, a convenient yet robust strategy is reported to craft flexible transient circuits via stencil printing liquid metal conductor on the water-soluble electrospun film for human-machine interaction. Due to the inherent liquid conductor within porous substrate, the circuits feature high-resolution, customized patterning viability, attractive permeability, excellent electroconductivity, and superior mechanical stability. More importantly, such circuits display appealing noncontact proximity capabilities while maintaining compelling tactile sensing performance, which is unattainable by traditional systems with compromised contact sensing. As such, the flexible circuit is utilized as wearable sensors with practical multifunctionality, including information transfer, smart identification, and trajectory monitoring. Furthermore, an intelligent human-machine interface composed of the flexible sensors is fabricated to realize specific goals such as wireless object control and overload alarm. The transient circuits are quickly and efficiently recycled toward high economic and environmental values. This work opens vast possibilities of generating high-quality flexible and transient electronics for advanced applications in soft and intelligent systems.
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Affiliation(s)
- Kai Zheng
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Fan Gu
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Hongjin Wei
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Lijie Zhang
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Xi'an Chen
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Huile Jin
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Shuang Pan
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Yihuang Chen
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
| | - Shun Wang
- Wenzhou Key Lab of Advanced Energy Storage and Conversion, Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325035, China
- Zhejiang Engineering Research Center for Electrochemical Energy Materials and Devices, Institute of New Materials and Industrial Technologies, Wenzhou University, Wenzhou, Zhejiang, 325035, China
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Ma Y, Zhao K, Han J, Han B, Wang M, Tong Z, Suhr J, Xiao L, Jia S, Chen X. Pressure Sensor Based on a Lumpily Pyramidal Vertical Graphene Film with a Broad Sensing Range and High Sensitivity. ACS APPLIED MATERIALS & INTERFACES 2023; 15:13813-13821. [PMID: 36857658 DOI: 10.1021/acsami.3c01175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Wearable sensors are vital for the development of electronic skins to improve health monitoring, robotic tactile sensing, and artificial intelligence. Active materials and the construction of microstructures in the sensitive layer are the dominating approaches to improve the performance of pressure sensors. However, it is still a challenge to simultaneously achieve a sensor with a high sensitivity and a wide detection range. In this work, using three-dimensional (3D) vertical graphene (VG) as an active material, in combination with micropyramid arrays and lumpy holders, the stress concentration effects are generated in nano-, micro-, and macroscales. Therefore, the lumpily pyramidal VG film-based pressure sensor (LPV sensor) achieves an ultrahigh sensitivity (131.36 kPa-1) and a wide response range (0.1-100 kPa). Finite element analysis demonstrates that the stress concentration effects are enhanced by the micropyramid arrays and lumpy structures in micro- and macroscales, respectively. Finally, the LPV pressure sensors are tested in practical applications, including wearable health monitoring and force feedback of robotic tactile sensing.
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Affiliation(s)
- Yifei Ma
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Ke Zhao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Jiemin Han
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Bingkang Han
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Mei Wang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Zhaomin Tong
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Jonghwan Suhr
- Department of Polymer Science and Engineering, School of Mechanical Engineering, Sungkyunkwan University, Suwon, Gyeonggi 16419, Republic of Korea
| | - Liantuan Xiao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Suotang Jia
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
| | - Xuyuan Chen
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China
- Faculty of Technology, Natural Sciences and Maritime Sciences, Department of Microsystems, University of South-Eastern Norway, N-3184 Borre, Norway
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Zhang S, Sun X, Guo X, Zhang J, Li H, Chen L, Wu J, Shi Y, Pan L. A Wide-Range-Response Piezoresistive-Capacitive Dual-Sensing Breathable Sensor with Spherical-Shell Network of MWCNTs for Motion Detection and Language Assistance. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13050843. [PMID: 36903721 PMCID: PMC10005261 DOI: 10.3390/nano13050843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/11/2023] [Accepted: 02/22/2023] [Indexed: 06/12/2023]
Abstract
It is still a challenge for flexible electronic materials to realize integrated strain sensors with a large linear working range, high sensitivity, good response durability, good skin affinity and good air permeability. In this paper, we present a simple and scalable porous piezoresistive/capacitive dual-mode sensor with a porous structure in polydimethylsiloxane (PDMS) and with multi-walled carbon nanotubes (MWCNTs) embedded on its internal surface to form a three-dimensional spherical-shell-structured conductive network. Thanks to the unique spherical-shell conductive network of MWCNTs and the uniform elastic deformation of the cross-linked PDMS porous structure under compression, our sensor offers a dual piezoresistive/capacitive strain-sensing capability, a wide pressure response range (1-520 kPa), a very large linear response region (95%), excellent response stability and durability (98% of initial performance after 1000 compression cycles). Multi-walled carbon nanotubes were coated on the surface of refined sugar particles by continuous agitation. Ultrasonic PDMS solidified with crystals was attached to the multi-walled carbon nanotubes. After the crystals were dissolved, the multi-walled carbon nanotubes were attached to the porous surface of the PDMS, forming a three-dimensional spherical-shell-structure network. The porosity of the porous PDMS was 53.9%. The large linear induction range was mainly related to the good conductive network of the MWCNTs in the porous structure of the crosslinked PDMS and the elasticity of the material, which ensured the uniform deformation of the porous structure under compression. The porous conductive polymer flexible sensor prepared by us can be assembled into a wearable sensor with good human motion detection ability. For example, human movement can be detected by responding to stress in the joints of the fingers, elbows, knees, plantar, etc., during movement. Finally, our sensors can also be used for simple gesture and sign language recognition, as well as speech recognition by monitoring facial muscle activity. This can play a role in improving communication and the transfer of information between people, especially in facilitating the lives of people with disabilities.
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10
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Tuli A, Singh AP. Polymer-based wearable nano-composite sensors: a review. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2023. [DOI: 10.1080/1023666x.2022.2161737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Aashish Tuli
- Mechanical Engineering, UIET Panjab University, Chandigarh, India
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11
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Bioinspired flexible piezoresistive sensor for high-sensitivity detection of broad pressure range. Biodes Manuf 2022. [DOI: 10.1007/s42242-022-00220-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Cheng H, Yang K, Zhang Y, Liao S, Du M, Li J, Ma N, Xue M, Zhang X, Wang Y. A Novel Ionic Conductive Polyurethane Based on Deep Eutectic Solvent Continuing Traditional Merits. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52402-52410. [PMID: 36256442 DOI: 10.1021/acsami.2c15356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Artificial intelligence (AI) has become increasingly popular along with the development of the bionic neural system. Ionic conductors play an important role in the AI system due to the ability of bionic sensing and signal transporting. Traditional low-polarity elastomers possess outstanding mechanical strength and stability, such as polyurethane, which is difficult to be directly endowed with ionic conductivity without impairing its properties. Herein, we have first put forward a new approach to synthesize a liquid-free ionic conductive polyurethane (CPU) through one-step copolymerization between a green deep eutectic solvent (DES) and a prepolymer of polyurethane. The as-prepared CPU can retain the native properties of the traditional polyurethane (PU) such as the homogeneous phase, ease of molding, high transparency (about 93.3%), and excellent mechanical properties. By introducing the DES as the covalent cross-linking agent and ionic conductor at the same time, the CPU also has fine ionic conductivity (3.78 × 10-5 S cm-1), environmental resistance like anti-freezing (-20 °C), and solvent resistance. Based on the excellent conductivity and mechanical strength, the flexible CPU can be applied as a sensing element in pressure sensors. The CPU-based sensor has presented long-term stability, high sensitivity, and wide-ranging response (0.17-3.28 MPa) to the applied pressure, which will be suitable for the industrial demands for practical applications.
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Affiliation(s)
- Haoge Cheng
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Kaiyue Yang
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Yuze Zhang
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Shenglong Liao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Menghao Du
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Jiaqi Li
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Ning Ma
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Mianqi Xue
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xinyue Zhang
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao 266000, China
| | - Yapei Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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13
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Chen T, Liu Z, Zhao G, Qin Z, Zheng P, Aladejana JT, Tang Z, Weng M, Peng X, Chang J. Piezoresistive Sensor Containing Lamellar MXene-Plant Fiber Sponge Obtained with Aqueous MXene Ink. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51361-51372. [PMID: 36336918 DOI: 10.1021/acsami.2c15922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sustainable biomass materials are promising for low-cost wearable piezoresistive pressure sensors, but these devices are still produced with time-consuming manufacturing processes and normally display low sensitivity and poor mechanical stability at low-pressure regimes. Here, an aqueous MXene ink obtained by simply ball-milling is developed as a conductive modifier to fabricate the multiresponsive bidirectional bending actuator and compressible MXene-plant fiber sponge (MX-PFS) for durable and wearable pressure sensors. The MX-PFS is fabricated by physically foaming MXene ink and plant fibers. It possesses a lamellar porous structure composed of one-dimensional (1D) MXene-coated plant fibers and two-dimensional (2D) MXene nanosheets, which significantly improves the compression capacity and elasticity. Consequently, the encapsulated piezoresistive sensor (PRS) exhibits large compressible strain (60%), excellent mechanical durability (10 000 cycles), low detection limit (20 Pa), high sensitivity (435.06 kPa-1), and rapid response time (40 ms) for practical wearable applications.
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Affiliation(s)
- Tingjie Chen
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
- College of Material Science and Engineering, National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Zhiyong Liu
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Gang Zhao
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Zipeng Qin
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Peitao Zheng
- Academy for Advanced Interdisciplinary Studies, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - John Tosin Aladejana
- College of Material Science and Engineering, National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Zhendong Tang
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Mingcen Weng
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Xiangfang Peng
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou 350002, Fujian, China
| | - Jian Chang
- Academy for Advanced Interdisciplinary Studies, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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14
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Eghbalinia S, Katbab A, Nazockdast H, Katbab P. Highly compressible piezoresistive strain sensor with a semi-IPN structure based on PU sponge/RTV silicone rubber/MWCNTs. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03315-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Compañ V, Andrio A, Escorihuela J, Velasco J, Porras-Vazquez A, Gamez-Perez J. Electric Conductivity Study of Porous Polyvinyl Alcohol/Graphene/Clay Aerogels: Effect of Compression. ACS OMEGA 2022; 7:37954-37963. [PMID: 36312350 PMCID: PMC9607684 DOI: 10.1021/acsomega.2c05123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 09/12/2022] [Indexed: 06/12/2023]
Abstract
In this work, poly(vinyl alcohol) (PVOH)/graphene (GN) oxide/clay aerogels were prepared using montmorillonite (MMT) and kaolinite (KLT) as fillers. This work paves the way for the development of aerogels filled with MMT or KLT with high conductivity. The mechanical properties of the polymer/clay aerogels are enhanced by incorporating GN into these systems. These composite materials have an enhanced thermal stability, and the combination of PVOH and GN leads to interconnected channels which favored the conductivity when a clay (MMT or KLT) is added to the mixed PVOH/GN matrix. However, after compressing the samples, the conductivities drastically decreased. These results show that the design of solid MMT/GN and KLT/GN composites as aerogels allows maximizing the space utilization of the electrode volume to achieve unhindered ion transport, which seems contrary to the general design principle of electrode materials where a suitable porous structure is desired, such as in our uncompressed samples. These findings also demonstrate the potential of these materials in electrodes, sensors, batteries, pressure-sensing applications, and supercapacitors.
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Affiliation(s)
- Vicente Compañ
- Departamento
de Termodinámica Aplicada (ETSII), Universitat Politècnica de València, Campus de Vera s/n, 46022Valencia, Spain
| | - Andreu Andrio
- Departamento
de Física, Universitat Jaume I, Castellón de la Plana12071, Spain
| | - Jorge Escorihuela
- Departamento
de Química Orgánica, Universitat
de València, Av.
Vicente Andrés Estellés s/n, Burjassot, 46100Valencia, Spain
| | - Josua Velasco
- Departamento
de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Castellón de la Plana12071, Spain
| | - Alejandro Porras-Vazquez
- Departamento
de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Castellón de la Plana12071, Spain
| | - Jose Gamez-Perez
- Departamento
de Ingeniería de Sistemas Industriales y Diseño, Universitat Jaume I, Castellón de la Plana12071, Spain
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16
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Han F, Luo J, Pan R, Wu J, Guo J, Wang Y, Wang L, Liu M, Wang Z, Zhou D, Wang Z, Li Q, Zhang Q. Vanadium Dioxide Nanosheets Supported on Carbonized Cotton Fabric as Bifunctional Textiles for Flexible Pressure Sensors and Zinc-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:41577-41587. [PMID: 36043320 DOI: 10.1021/acsami.2c10679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Flexible pressure sensors and aqueous batteries have been widely used in the rapid development of wearable electronics. The synergistic functionalities of versatile materials with multidimensional architectures are recognized to have a significant impact on the performance of flexible electronics. Herein, a facile hydrothermal strategy was demonstrated to conformally grow vanadium dioxide nanosheets on carbonized cotton fabrics (VO2/CCotton), which is a candidate material used in flexible piezoresistive sensors. As a result, the VO2/CCotton-based pressure sensor behaved with high sensitivity (S = 7.12 kPa-1 in the pressure range of 0-2.0 kPa) and a stable sensing ability in a wide pressure scale of 0-120 kPa. Further practical applications were performed in monitoring delicate physiological signals as well, such as twisting, blowing, and voice vibration recognitions. In addition, another application for energy storage was investigated as well. A quasi-solid-state aqueous zinc-ion battery was assembled with VO2/CCotton as the cathode and a film of Zn nanosheets/carbon nanotube as the anode. A capacity as high as 301.5 mAh g-1 and remarkable durability of 88.7% capacity retention after 5000 cycles at 10 A g-1 were found. These exceptional outcomes are attributed to the unique three-dimensional architecture and the prominent synergetic effects of CCotton and VO2 and allow for the proposal of novel guidelines for next-generation multifunctional flexible electronics.
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Affiliation(s)
- Fengsai Han
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Jie Luo
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 China
| | - Rui Pan
- School of Electronic Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Jiajun Wu
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Jiabin Guo
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 China
| | - Yongjiang Wang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 China
| | - Lianbo Wang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Min Liu
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Zemin Wang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Ding Zhou
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Zhanyong Wang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 201418, China
| | - Qingwen Li
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 China
| | - Qichong Zhang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 China
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17
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Zhou Y, Lian H, Li Z, Yin L, Ji Q, Li K, Qi F, Huang Y. Crack engineering boosts the performance of flexible sensors. VIEW 2022. [DOI: 10.1002/viw.20220025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Yunlei Zhou
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
- State Key Laboratory of Digital Manufacturing Equipment and Technology Flexible Electronics Research Center Huazhong University of Science and Technology Wuhan China
| | - Haoxiang Lian
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
- State Key Laboratory of Digital Manufacturing Equipment and Technology Flexible Electronics Research Center Huazhong University of Science and Technology Wuhan China
| | - Zhenlei Li
- School of Mechanical and Electric Engineering Soochow University Suzhou China
| | - Liting Yin
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
- State Key Laboratory of Digital Manufacturing Equipment and Technology Flexible Electronics Research Center Huazhong University of Science and Technology Wuhan China
| | - Qian Ji
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
| | - Kan Li
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
- State Key Laboratory of Digital Manufacturing Equipment and Technology Flexible Electronics Research Center Huazhong University of Science and Technology Wuhan China
| | - Fei Qi
- School of Mechanical and Electric Engineering Soochow University Suzhou China
| | - YongAn Huang
- School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China
- State Key Laboratory of Digital Manufacturing Equipment and Technology Flexible Electronics Research Center Huazhong University of Science and Technology Wuhan China
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18
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Nabeel M, Varga M, Kuzsella L, Fiser B, Vanyorek L, Viskolcz B. The Effect of Pore Volume on the Behavior of Polyurethane-Foam-Based Pressure Sensors. Polymers (Basel) 2022; 14:polym14173652. [PMID: 36080726 PMCID: PMC9459917 DOI: 10.3390/polym14173652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/28/2022] [Accepted: 08/29/2022] [Indexed: 01/30/2023] Open
Abstract
In this work, three different polyurethane (PU) foams were prepared by mixing commonly used isocyanate and polyol with different isocyanate indices (1.0:0.8, 1.0:1.0, 1.0:1.1). Then, the prepared polyurethane foam samples were coated by dip-coating with a fixed ratio of nitrogen-doped, bamboo-shaped carbon nanotubes (N-BCNTs) to obtain pressure sensor systems. The effect of the isocyanate index on the initial resistance, pressure sensitivity, gauge factor (GF), and repeatability of the N-BCNT/PU pressure sensor systems was studied. The pore volume was crucial in finetuning the PU-foam-based sensors ability to detect large strain. Furthermore, large pore volume provides suitable spatial pores for elastic deformation. Sensors with large pore volume can detect pressure of less than 3 kPa, which could be related to their sensitivity in the high range. Moreover, by increasing the pore volume, the electrical percolation threshold can be achieved with a minimal addition of nanofillers. On the other hand, PU with a smaller pore volume is more suitable to detect pressure above 3 kPa. The developed sensors have been successfully applied in many applications, such as motion monitoring and vibration detection.
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Affiliation(s)
- Mohammed Nabeel
- Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
- Ministry of Science and Technology—Materials Research Directorate, Baghdad 10011, Iraq
| | - Miklós Varga
- Higher Education and Industrial Cooperation Centre, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
| | - László Kuzsella
- Institute of Materials Science and Technology, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
| | - Béla Fiser
- Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
- Higher Education and Industrial Cooperation Centre, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
- Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, 90200 Beregszász, Transcarpathia, Ukraine
| | - László Vanyorek
- Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
| | - Béla Viskolcz
- Institute of Chemistry, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
- Higher Education and Industrial Cooperation Centre, University of Miskolc, 3515 Miskolc-Egyetemváros, Hungary
- Correspondence:
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19
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Sikdar P, Dip TM, Dhar AK, Bhattacharjee M, Hoque MS, Ali SB. Polyurethane (
PU
) based multifunctional materials: Emerging paradigm for functional textiles, smart, and biomedical applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.52832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Partha Sikdar
- Department of Textiles, Merchandising and Interiors University of Georgia Athens Georgia USA
| | | | - Avik K. Dhar
- Department of Textiles, Merchandising and Interiors University of Georgia Athens Georgia USA
| | | | - Md. Saiful Hoque
- Department of Human Ecology University of Alberta Edmonton Alberta Canada
- Department of Textile Engineering Daffodil International University 102 Shukrabad, Dhanmondi Dhaka Bangladesh
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20
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Li J, Li N, Zheng Y, Lou D, Jiang Y, Jiang J, Xu Q, Yang J, Sun Y, Pan C, Wang J, Peng Z, Zheng Z, Liu W. Interfacially Locked Metal Aerogel Inside Porous Polymer Composite for Sensitive and Durable Flexible Piezoresistive Sensors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201912. [PMID: 35748166 PMCID: PMC9376829 DOI: 10.1002/advs.202201912] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/16/2022] [Indexed: 05/31/2023]
Abstract
Flexible pressure sensors play significant roles in wearable devices, electronic skins, and human-machine interface (HMI). However, it remains challenging to develop flexible piezoresistive sensors with outstanding comprehensive performances, especially with excellent long-term durability. Herein, a facile "interfacial locking strategy" has been developed to fabricate metal aerogel-based pressure sensors with excellent sensitivity and prominent stability. The strategy broke the bottleneck of the intrinsically poor mechanical properties of metal aerogels by grafting them on highly elastic melamine sponge with the help of a thin polydimethylsiloxane (PDMS) layer as the interface-reinforcing media. The hierarchically porous conductive structure of the ensemble offered the as-prepared flexible piezoresistive sensor with a sensitivity as high as 12 kPa-1 , a response time as fast as 85 ms, and a prominent durability over 23 000 compression cycles. The excellent comprehensive performance enables the successful application of the flexible piezoresistive sensor as two-dimensional (2D) array device as well as three-dimensional (3D) force-detecting device for real-time monitoring of HMI activities.
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Affiliation(s)
- Jian Li
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Ning Li
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Yuanyuan Zheng
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Dongyang Lou
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Yue Jiang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Jiaxi Jiang
- Center for Advanced Mechanics and MaterialsApplied Mechanics LaboratoryDepartment of Engineering MechanicsTsinghua UniversityBeijing100084P. R. China
| | - Qunhui Xu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Jing Yang
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Yujing Sun
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Chuxuan Pan
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Jianlan Wang
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Zhengchun Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060P. R. China
| | - Zhikun Zheng
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of chemistrySun Yat‐sen UniversityGuangzhou510006P. R. China
| | - Wei Liu
- The Key Laboratory of Low‐Carbon Chemistry & Energy Conservation of Guangdong ProvinceKey Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationState Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat‐sen UniversityGuangzhou510006P. R. China
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21
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Li L, Bao X, Meng J, Zhang C, Liu T. Sponge-Hosting Polyaniline Array Microstructures for Piezoresistive Sensors with a Wide Detection Range and High Sensitivity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30228-30235. [PMID: 35728515 DOI: 10.1021/acsami.2c07404] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of highly elastic spongy conductors is attractive for use in piezoresistive sensors due to their low cost, easy fabrication, and wide sensing range. However, the combination of high sensitivity and broad sensing range in a single piezoresistive sensor, though highly demanded, is challenging because they are contradictory in principle. Herein, a highly elastic spongy conductor with sponge-hosting polyaniline (PANI) fluff-like array microstructures is fabricated through cryopolymerization. The as-obtained sponge-hosting conductors exhibited an excellent elasticity under high compression strain and stress of up to 80% and 101 kPa, respectively, covering typical deformation ranges for detecting complex human activities. Benefiting from the presence of the sponge-hosting fluff-like PANI arrays, the as-prepared sponge-hosting conductors for piezoresistive sensors possessed a high sensitivity of 0.54 kPa-1 in a broad pressure range of 0.1-101 kPa, ascribing to the formation of the sponge-hosting fluff arrays with graded conductive network structures of array contacts and sponge-skeleton contacts at low and high compressions, respectively. As a result, the as-assembled piezoresistive sensors were demonstrated for tactile sensing and human-motion monitoring. This work reveals new approaches for tailored fabrication of sponge-hosting conducting polymers with tunable fluff-like microstructures for highly sensitive and wide-range wearable piezoresistive sensors.
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Affiliation(s)
- Le Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Xuran Bao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Jian Meng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
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22
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Shi Z, Meng L, Shi X, Li H, Zhang J, Sun Q, Liu X, Chen J, Liu S. Morphological Engineering of Sensing Materials for Flexible Pressure Sensors and Artificial Intelligence Applications. NANO-MICRO LETTERS 2022; 14:141. [PMID: 35789444 PMCID: PMC9256895 DOI: 10.1007/s40820-022-00874-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/04/2022] [Indexed: 05/05/2023]
Abstract
Various morphological structures in pressure sensors with the resulting advanced sensing properties are reviewed comprehensively. Relevant manufacturing techniques and intelligent applications of pressure sensors are summarized in a complete and interesting way. Future challenges and perspectives of flexible pressure sensors are critically discussed.
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Affiliation(s)
- Zhengya Shi
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Lingxian Meng
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Xinlei Shi
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, People's Republic of China
| | - Hongpeng Li
- School of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, People's Republic of China
| | - Juzhong Zhang
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Qingqing Sun
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Xuying Liu
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Jinzhou Chen
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Shuiren Liu
- School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.
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23
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Highly Compressible and Sensitive Flexible Piezoresistive Pressure Sensor Based on MWCNTs/Ti3C2Tx MXene @ Melamine Foam for Human Gesture Monitoring and Recognition. NANOMATERIALS 2022; 12:nano12132225. [PMID: 35808061 PMCID: PMC9268708 DOI: 10.3390/nano12132225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/22/2022] [Accepted: 06/26/2022] [Indexed: 11/25/2022]
Abstract
Flexible sensing devices provide a convenient and effective solution for real-time human motion monitoring, but achieving efficient and low-cost assembly of pressure sensors with high performance remains a considerable challenge. Herein, a highly compressible and sensitive flexible foam-shaped piezoresistive pressure sensor was prepared by sequential fixing multiwalled carbon nanotubes and Ti3C2Tx MXene on the skeleton of melamine foam. Due to the porous skeleton of the melamine foam and the extraordinary electrical properties of the conductive fillers, the obtained MWCNTs/Ti3C2Tx MXene @ melamine foam device features high sensitivity of 0.339 kPa−1, a wide working range up to 180 kPa, a desirable response time and excellent cyclic stability. The sensing mechanism of the composite foam device is attributed to the change in the conductive pathways between adjacent porous skeletons. The proposed sensor can be used successfully to monitor human gestures in real-time, such as finger bending and tilting, scrolling the mouse and stretching fingers. By combining with the decision tree algorithm, the sensor can unambiguously classify different Arabic numeral gestures with an average recognition accuracy of 98.9%. Therefore, our fabricated foam-shaped sensor may have great potential as next-generation wearable electronics to accurately acquire and recognize human gesture signals in various practical applications.
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24
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Pu L, Ma H, Dong J, Zhang C, Lai F, He G, Ma P, Dong W, Huang Y, Liu T. Xylem-Inspired Polyimide/MXene Aerogels with Radial Lamellar Architectures for Highly Sensitive Strain Detection and Efficient Solar Steam Generation. NANO LETTERS 2022; 22:4560-4568. [PMID: 35583326 DOI: 10.1021/acs.nanolett.2c01486] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Polyimide aerogels with mechanical robustness, great compressibility, excellent antifatigue properties, and intriguing functionality have captured enormous attention in diverse applications. Here, enlightened by the xylem parenchyma of dicotyledonous stems, a radially architectured polyimide/MXene composite aerogel (RPIMX) with reversible compressibility is developed by combining the interfacial enhancing strategy and radial ice-templating method. The strong interaction between MXene flakes and polymer can glue the MXene to form continuous lamellae, the ice crystals grow preferentially along the radial temperature gradient can effectively constrain the lamellae to create a biomimetic radial lamellar architecture. As a result, the nature-inspired RPIMX composite aerogel with centrosymmetric lamellar structure and oriented channels manifests excellent mechanical strength, electrical conductivity, and water transporting capability along the longitudinal direction, endowing itself with intriguing applications for accurate human motion monitoring and efficient photothermal evaporation. These exciting properties make the biomimetic RPIMX aerogels promising candidates for flexible piezoresistive sensors and photothermal evaporators.
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Affiliation(s)
- Lei Pu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Haojie Ma
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Jiancheng Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven 3001, Belgium
| | - Guanjie He
- Christopher Ingold Laboratory, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Piming Ma
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Weifu Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yunpeng Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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25
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Wu J, Fan X, Liu X, Ji X, Shi X, Wu W, Yue Z, Liang J. Highly Sensitive Temperature-Pressure Bimodal Aerogel with Stimulus Discriminability for Human Physiological Monitoring. NANO LETTERS 2022; 22:4459-4467. [PMID: 35608193 DOI: 10.1021/acs.nanolett.2c01145] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Multimodal sensor with high sensitivity, accurate sensing resolution, and stimuli discriminability is very desirable for human physiological state monitoring. A dual-sensing aerogel is fabricated with independent pyro-piezoresistive behavior by leveraging MXene and semicrystalline polymer to assemble shrinkable nanochannel structures inside multilevel cellular walls of aerogel for discriminable temperature and pressure sensing. The shrinkable nanochannels, controlled by the melt flow-triggered volume change of semicrystalline polymer, act as thermoresponsive conductive channels to endow the pyroresistive aerogel with negative temperature coefficient of resistance of -10.0% °C-1 and high accuracy within 0.2 °C in human physiological temperature range of 30-40 °C. The flexible cellular walls, working as pressure-responsive conductive channels, enable the piezoresistive aerogel to exhibit a pressure sensitivity up to 777 kPa-1 with a detectable pressure limit of 0.05 Pa. The pyro-piezoresistive aerogel can detect the temperature-dependent characteristics of pulse pressure waveforms from artery vessels under different human body temperature states.
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Affiliation(s)
- Jinhua Wu
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
| | - Xiangqian Fan
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
| | - Xue Liu
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
| | - Xinyi Ji
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
| | - Xinlei Shi
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
| | - Wenbin Wu
- Department of Microelectronics, Nankai University, Tianjin 300350, China
| | - Zhao Yue
- Department of Microelectronics, Nankai University, Tianjin 300350, China
| | - Jiajie Liang
- School of Materials Science and Engineering, National Institute for Advanced Materials Nankai University, Tianjin 300350, China
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin 300350, China
- Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300350, China
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26
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Li Y, Cui Y, Zhang M, Li X, Li R, Si W, Sun Q, Yu L, Huang C. Ultrasensitive Pressure Sensor Sponge Using Liquid Metal Modulated Nitrogen-Doped Graphene Nanosheets. NANO LETTERS 2022; 22:2817-2825. [PMID: 35333055 DOI: 10.1021/acs.nanolett.1c04976] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Wearable pressure sensors are crucial for real-time monitoring of human activities and biomimetic robot status. Here, the ultrasensitive pressure sensor sponge is prepared by a facile method, realizing ultrasensitive pressure sensing for wearable health monitoring. Since the liquid metal in the sponge-skeleton structure under pressure is conducive to adjust the contact area with nitrogen-doped graphene nanosheets and thus facilitates the charge transfer at the interface, such sensors exhibit a fast response and recovery speed with the response/recovery time 0.41/0.12 s and a comprehensive response range with a sensitivity of up to 476 KPa-1. Notably, the liquid metal-based spongy pressure sensor can accurately monitor the human body's pulse, the pressure on the skin, throat swallowing, and other activities in real time, demonstrating a broad application prospect. Those results provide a convenient and low-cost way to fabricate easily perceptible pressure sensors, expanded the application potential of liquid metal-based composites for future electronic skin development.
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Affiliation(s)
- Yuan Li
- Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Jiangsu Key Laboratory of Artificial Functional Materials, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Yanguang Cui
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingjia Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- College of Physics and Optoelectronic Engineering, Ocean University of China, Qingdao, Shandong 266100, P.R. China
| | - Xiaodong Li
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ru Li
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
| | - Wenyan Si
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Quanhu Sun
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingmin Yu
- School of Material and Chemical Engineering, Xi'an Technological University, Xi'an 710021, P.R. of China
| | - Changshui Huang
- Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P.R. of China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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27
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Ye Z, Pang G, Xu K, Hou Z, Lv H, Shen Y, Yang G. Soft Robot Skin With Conformal Adaptability for On-Body Tactile Perception of Collaborative Robots. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3155225] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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28
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Paghi A, Corsi M, Corso S, Mariani S, Barillaro G. In situ controlled and conformal coating of polydimethylsiloxane foams with silver nanoparticle networks with tunable piezo-resistive properties. NANOSCALE HORIZONS 2022; 7:425-436. [PMID: 35244124 DOI: 10.1039/d1nh00648g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nanoparticle-polymer composites hold promise in enabling material functionalities that are difficult to achieve otherwise, yet are hampered to date by the scarce control and tunability of the nanoparticle collective properties on the polymer surface, especially for polymer foams featuring a complex three-dimensional pore network. Here we report on the controlled and conformal in situ coating of polydimethylsiloxane (PDMS) foams with silver nanoparticles (AgNPs) with surface coverage finely tunable over a large range, from 0 to 75%, via the one-step room temperature reduction of AgF directly on the PDMS surface. This enables the design of AgNP electrical networks on the PDMS foam surface with piezo-resistive properties tunable up to a factor of 1000. We leveraged the control of the piezoresistive properties of the AgNP electrical network formed on PDMS foams to fabricate flexible and wearable pressure sensors with sensitivity of 0.41 kPa-1, an operation range >120 kPa, and a detection limit of 25 Pa. As a proof-of-concept application in wearable biomedical electronics, we successfully used the sensors to monitor the real-time radial artery pulse wave on the human wrist of a young male with high resolution.
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Affiliation(s)
- Alessandro Paghi
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, via G. Caruso 16, 56122 Pisa, Italy.
| | - Martina Corsi
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, via G. Caruso 16, 56122 Pisa, Italy.
| | - Samuele Corso
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, via G. Caruso 16, 56122 Pisa, Italy.
| | - Stefano Mariani
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, via G. Caruso 16, 56122 Pisa, Italy.
| | - Giuseppe Barillaro
- Dipartimento di Ingegneria dell'Informazione, Università di Pisa, via G. Caruso 16, 56122 Pisa, Italy.
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29
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Habibi N, Pourjavadi A. Thermally Conductive and Superhydrophobic Polyurethane Sponge for Solar-Assisted Separation of High-Viscosity Crude Oil from Water. ACS APPLIED MATERIALS & INTERFACES 2022; 14:7329-7339. [PMID: 35089699 DOI: 10.1021/acsami.1c22594] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The rapid and effective separation of high-viscosity heavy crude oil from seawater is a worldwide challenge. Herein, an ultralow density, photothermal, superhydrophobic, and thermally conductive polyurethane/polyaniline/hexagonal boron nitride@Fe3O4/polyacrylic-oleic acid resin sponge (PU/PANI/h-BN@Fe3O4/AR) was fabricated with a water contact angle (WCA) of 158°, thermal conductivity of 0.76 W m-1 K-1, density of 0.038 g cm-3, limited oxygen index (LOI) of 28.82%, and porosity of 97.97% and used for solar-assisted separation of high-viscosity crude oil from water. Photothermal components were composed of PANI and Fe3O4, while h-BN particles were used as thermally conductive and flame retardant fillers. Therefore, the illuminated sunlight irradiation on the modified sponge was converted to heat due to the activity of photothermal components. The produced heat was rapidly transferred to the environment due to the presence of h-BN for increasing the temperature of the high-viscosity crude oil and reducing oil viscosity that helped to promote its fluidity and effective absorption. The crude oil absorption capacity of this sponge increased from 4 to 57 g g-1 under irradiation of a sunlight simulator (power: 1 sun: 1 kW m-2) for 17 min due to oil viscosity reduction from 2.46 × 104 to below 100 mPa s followed by an increase in the surface temperature from 26 to 89 °C. Also, the oil absorption capacity was evaluated in a static state (172 g g-1 for chloroform), under different external magnetic fields (140.7 g g-1 for gasoline), and in a continuous state, which was 65,100 times of its own weight in the gasoline filtration process. The PU/PANI/h-BN@Fe3O4/AR sponge exhibited excellent stability against 20 times of reusing, mechanical compression, abrasion, immersing in various pH solutions, seawater, and high temperature. In all, the results confirmed that the prepared sponge is an excellent absorbent for organic solvents and highly viscous crude oil in the absence and presence of sunlight irradiation.
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Affiliation(s)
- Navid Habibi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran 11365-9516, Iran
| | - Ali Pourjavadi
- Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, Tehran 11365-9516, Iran
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30
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Wei Q, Chen G, Pan H, Ye Z, Au C, Chen C, Zhao X, Zhou Y, Xiao X, Tai H, Jiang Y, Xie G, Su Y, Chen J. MXene-Sponge Based High-Performance Piezoresistive Sensor for Wearable Biomonitoring and Real-Time Tactile Sensing. SMALL METHODS 2022; 6:e2101051. [PMID: 35174985 DOI: 10.1002/smtd.202101051] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/10/2021] [Indexed: 06/14/2023]
Abstract
Electrode microfabrication technologies such as lithography and deposition have been widely applied in wearable electronics to boost interfacial coupling efficiency and device performance. However, a majority of these approaches are restricted by expensive and complicated processing techniques, as well as waste discharge. Here, helium plasma irradiation is employed to yield a molybdenum microstructured electrode, which is constructed into a flexible piezoresistive pressure sensor based on a Ti3 C2 Tx nanosheet-immersed polyurethane sponge. This electrode engineering strategy enables the smooth transition between sponge deformation and MXene interlamellar displacement, giving rise to high sensitivity (1.52 kPa-1 ) and good linearity (r2 = 0.9985) in a wide sensing range (0-100 kPa) with a response time of 226 ms for pressure detection. In addition, both the experimental characterization and finite element simulation confirm that the hierarchical structures modulated by pore size, plasma bias, and MXene concentration play a crucial role in improving the sensing performance. Furthermore, the as-developed flexible pressure sensor is demonstrated to measure human radial pulse, detect finger tapping, foot stomping, and perform object identification, revealing great feasibility in wearable biomonitoring and health assessment.
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Affiliation(s)
- Qikun Wei
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Guorui Chen
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
| | - Hong Pan
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Zongbiao Ye
- Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China
| | - Christian Au
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Chunxu Chen
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Xun Zhao
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
| | - Yihao Zhou
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
| | - Xiao Xiao
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
| | - Huiling Tai
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yadong Jiang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Guangzhong Xie
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yuanjie Su
- State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, CA, 90095, USA
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31
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Chen KY, Xu YT, Zhao Y, Li JK, Wang XP, Qu LT. Recent progress in graphene-based wearable piezoresistive sensors: From 1D to 3D device geometries. NANO MATERIALS SCIENCE 2022. [DOI: 10.1016/j.nanoms.2021.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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32
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Wu C, Zhang X, Wang R, Chen LJ, Nie M, Zhang Z, Huang X, Han L. Low-dimensional material based wearable sensors. NANOTECHNOLOGY 2021; 33:072001. [PMID: 34706353 DOI: 10.1088/1361-6528/ac33d1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Wearable sensors are believed to be the most important part of the Internet of Things. In order to meet the application requirements, low-dimensional materials such as graphene and carbon nanotubes have been attempted to constitute wearable sensors with high performance. Our discussions in this review include the different low-dimensional material based sensors which are employed in wearable applications. Low-dimensional materials based wearable sensors for detecting various physical quantities in surroundings, including temperature sensor, pressure or strain sensor and humidity sensor, is introduced. The primary objective of this paper is to provide a comprehensive review of research status and future development direction of low-dimensional materials based wearable sensors. Challenges for developing commercially low-dimensional namomaterials based wearable sensors are highlighted as well.
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Affiliation(s)
- Chenggen Wu
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Xun Zhang
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Rui Wang
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Li Jun Chen
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Meng Nie
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Zhiqiang Zhang
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Xiaodong Huang
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
| | - Lei Han
- Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, People's Republic of China
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33
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Shen J, Guo Y, Zuo S, Shi F, Jiang J, Chu J. A bioinspired porous-designed hydrogel@polyurethane sponge piezoresistive sensor for human-machine interfacing. NANOSCALE 2021; 13:19155-19164. [PMID: 34780596 DOI: 10.1039/d1nr05017f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conductive coating sponge piezoresistive pressure sensors are attracting much attention because of their simple production and convenient signal acquisition. However, manufacturing sponge-structure pressure-sensing materials with high compressibility and wide pressure detection ranges is difficult because of the instability of rigid and brittle conductive coatings at large strains. Herein, a tough conductive hydrogel@polyurethane (PU) sponge with a porous design is prepared via immersion of a polyurethane sponge in a low-cost and biocompatible polyvinyl alcohol (PVA)/glycerin (Gl)/sodium chloride (NaCl) solution. The sensor based on the hydrogel/elastomer sponge composite material exhibits a compressible range of 0-93%, a pressure detection range of 100 Pa-470.2 kPa, and 10 000-cycle stability (80% strain) because of the compressibility, flexibility, and toughness of the porous hydrogel coating. Benefiting from the resistance change mechanism of microporous compression, the sensor also exhibits a wide range of linear resistance changes, and the corresponding sensitivity and gauge factor (GF) are -0.083 kPa-- (100 Pa-10.0 kPa) and -1.33 (1-60% strain), respectively. Based on its flexibility, compressibility, and wide-ranging linear resistance changes, the proposed sensor has huge potential application in human activity monitoring, electronic skin, and wearable electronic devices.
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Affiliation(s)
- Junhao Shen
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Yixin Guo
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Shaohua Zuo
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Fuwen Shi
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Jinchun Jiang
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Junhao Chu
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
- Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
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Kim J, Lee Y, Kang M, Hu L, Zhao S, Ahn JH. 2D Materials for Skin-Mountable Electronic Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005858. [PMID: 33998064 DOI: 10.1002/adma.202005858] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/08/2020] [Indexed: 06/12/2023]
Abstract
Skin-mountable devices that can directly measure various biosignals and external stimuli and communicate the information to the users have been actively studied owing to increasing demand for wearable electronics and newer healthcare systems. Research on skin-mountable devices is mainly focused on those materials and mechanical design aspects that satisfy the device fabrication requirements on unusual substrates like skin and also for achieving good sensing capabilities and stable device operation in high-strain conditions. 2D materials that are atomically thin and possess unique electrical and optical properties offer several important features that can address the challenging needs in wearable, skin-mountable electronic devices. Herein, recent research progress on skin-mountable devices based on 2D materials that exhibit a variety of device functions including information input and output and in vitro and in vivo healthcare and diagnosis is reviewed. The challenges, potential solutions, and perspectives on trends for future work are also discussed.
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Affiliation(s)
- Jejung Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yongjun Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minpyo Kang
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Luhing Hu
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Songfang Zhao
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- School of Material Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Jong-Hyun Ahn
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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35
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Yao S, Shen J, Guo Y, Zuo S, Shi F, Jiang J, Chu J. Poly(vinyl alcohol)/phosphoric acid gel electrolyte@polydimethylsiloxane sponge for piezoresistive pressure sensors. J Mater Chem B 2021; 9:8676-8685. [PMID: 34617096 DOI: 10.1039/d1tb01467f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Piezoresistive pressure sensors based on flexible, ultrasensitive, and squeezable conductive sponges have recently attracted significant attention. However, the preparation of cost-effective conductive sponges with good stability and wide strain range for pressure sensing remains a challenge. Herein, a conductive poly(vinyl alcohol)/phosphoric acid gel electrolyte@polydimethylsiloxane (PVA/H3PO4@PDMS) composite was fabricated by impregnating a PDMS sponge into a PVA/H3PO4 gel electrolyte. The conductivity of the as-prepared sponges was determined using a gel electrolyte polymer film. The sponge exhibited good sensitivity of 0.1145 kPa-1 in the low-pressure range (0-6.5 kPa), short response time (70 ms), and durability for over 2700 s (6000 cycles). The gauge factor of the PVA/H3PO4@PDMS sponge was 5.51, 1.49, and 0.33 at the strain range of 0-10%, 10-30%, and 30-80%, respectively. Based on these outstanding sensing performances, the sponges were applied for the detection of various human motions, such as vocal cord vibration, joint bending, respiratory rate, and pulse signal detection. Further, the sponge demonstrated their great potential in the fabrication of electronic skin and high-performance flexible wearable electronics. Therefore, the obtained PVA/H3PO4 gel electrolyte used as a sponge conductive coating material is a readily available and inexpensive material that can reduce the cost of composite materials for pressure sensing.
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Affiliation(s)
- Shengping Yao
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.
| | - Junhao Shen
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China.
| | - Yixin Guo
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China. .,Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Shaohua Zuo
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China. .,Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Fuwen Shi
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China. .,Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Jinchun Jiang
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China. .,Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
| | - Junhao Chu
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China. .,Engineering Research Center of Nanoelectronic Integration and Advanced Equipment, Ministry of Education, China
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Chen Y, Liu Y, Li Y, Qi H. Highly Sensitive, Flexible, Stable, and Hydrophobic Biofoam Based on Wheat Flour for Multifunctional Sensor and Adjustable EMI Shielding Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30020-30029. [PMID: 34129335 DOI: 10.1021/acsami.1c05803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Biofoam materials are attractive alternatives for petroleum-based foams to be used to solve environmental problems. Inspired by steamed bread, we report herein a novel utilization of wheat flour (WF) with the introduction of carbon nanotubes (CNTs) to form an environmentally friendly WF/CNT composite foam. This foam displayed a high elasticity (nearly 100% shape recovery), recyclable (5000 cycles), fast (100 ms), and superstability pressure-sensing response. It could serve as a new pressure sensor to detect the tiny pressure (1.76 Pa) and acoustic vibrations from piano notes. As an acoustic sensor, WF/CNT foam detected and recognized different volumes and frequencies of piano sounds. As an electromagnetic interference (EMI) shielding switch, the EMI shielding effectiveness (SE) of the foam could be easily regulated under self-fixable compression-recovery cycles. In addition, the WF/CNT foam could be converted into the WF/CNT film by a hot-compress process. This flexible film was applied as a multifunctional sensing device for detecting various motions. Therefore, wheat flour as a renewable resource could be designed into various WF-based biofoams with new functionalities and outstanding mechanical properties through a simple process.
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Affiliation(s)
- Yian Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yu Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Yuehu Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
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37
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Nabeel M, Varga M, Kuzsela L, Filep Á, Fiser B, Viskolcz B, Kollar M, Vanyorek L. Preparation of Bamboo-Like Carbon Nanotube Loaded Piezoresistive Polyurethane-Silicone Rubber Composite. Polymers (Basel) 2021; 13:polym13132144. [PMID: 34209925 PMCID: PMC8272147 DOI: 10.3390/polym13132144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/24/2021] [Accepted: 06/24/2021] [Indexed: 11/20/2022] Open
Abstract
In this study, a novel technology is reported to prepare a piezoresistive polyurethane-silicone rubber nanocomposite. Polyurethane (PU) foam was loaded with a nitrogen-doped bamboo-shaped carbon nanotube (N-BCNT) by using dip-coating, and then, impregnated with silicone rubber. PU was used as a supporting substrate for N-BCNT, while silicone rubber was applied to fill the pores of the foam to improve recoverability, compressive strength, and durability. The composite displays good electrical conductivity, short response time, and excellent repeatability. The resistance was reduced when the amount of N-BCNT (0.43 wt %) was increased due to the expanded conductive path for electron transport. The piezoresistive composite has been successfully tested in many applications, such as human monitoring and finger touch detection.
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Affiliation(s)
- Mohammed Nabeel
- Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary; (M.N.); (M.V.); (B.F.)
- Ministry of Science and Technology—Materials Research Directorate, Baghdad 10011, Iraq
| | - Miklós Varga
- Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary; (M.N.); (M.V.); (B.F.)
| | - László Kuzsela
- Institute of Materials Science and Technology, University of Miskolc, 3515 Miskolc, Hungary;
| | - Ádám Filep
- Institute of Metallurgical and Foundry Engineering, University of Miskolc, 3515 Miskolc, Hungary;
| | - Béla Fiser
- Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary; (M.N.); (M.V.); (B.F.)
- Ferenc Rákóczi II. Transcarpathian Hungarian College of Higher Education, 90200 Beregszász, Transcarpathia, Ukraine
| | - Béla Viskolcz
- Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary; (M.N.); (M.V.); (B.F.)
- Correspondence: (B.V.); (L.V.)
| | - Mariann Kollar
- Institute of Ceramics and Polymer Engineering, University of Miskolc, 3515 Miskolc, Hungary;
| | - László Vanyorek
- Institute of Chemistry, University of Miskolc, 3515 Miskolc, Hungary; (M.N.); (M.V.); (B.F.)
- Correspondence: (B.V.); (L.V.)
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38
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Zheng X, Hu Q, Wang Z, Nie W, Wang P, Li C. Roll-to-roll layer-by-layer assembly bark-shaped carbon nanotube/Ti 3C 2T x MXene textiles for wearable electronics. J Colloid Interface Sci 2021; 602:680-688. [PMID: 34153707 DOI: 10.1016/j.jcis.2021.06.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/30/2021] [Accepted: 06/07/2021] [Indexed: 01/25/2023]
Abstract
Smart wearable electronics have drawn increasing attention for their potential applications in personal thermal management, human health monitoring, portable energy conversion/storage, electronic skin and so on. However, it is still a critical challenge to fabricate the multifunctional textiles with tunable morphology and performance while performing well in flexibility, air permeability, wearing comfortability. Herein, we develop a novel roll-to-roll layer-by-layer assembly strategy to construct bark-shaped carbon nanotube (CNT)/Ti3C2Tx MXene composite film on the fiber surface. The fabricated bark-shaped CNT/MXene decorated fabrics (CMFs) exhibit good flexibility, air permeability and electrical conductivity (sheet resistance, 6.6 Ω/□). In addition, the CMFs demonstrate good electrothermal performance (70.9 °C, 5 V), electromagnetic interference (EMI) shielding performance (EMI shielding effectiveness, 30.0 dB under X-Brand), and high sensitivity as the flexible piezoresistive sensors for monitoring the human motions. Importantly, our CMFs show distinctive EMI shielding mechanism, where a great proportion of incident electromagnetic microwaves are reflected by the bark-shaped CNT/MXene films owing to the multi-interface scattering effects. This work may provide a new strategy for the fabrication of multifunctional textile-based electronics and pave the way for smart wearable electronics.
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Affiliation(s)
- Xianhong Zheng
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Qiaole Hu
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Zongqian Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Wenqi Nie
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Peng Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Changlong Li
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
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39
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Rostami-Tapeh-Esmaeil E, Vahidifar A, Esmizadeh E, Rodrigue D. Chemistry, Processing, Properties, and Applications of Rubber Foams. Polymers (Basel) 2021; 13:1565. [PMID: 34068238 PMCID: PMC8153173 DOI: 10.3390/polym13101565] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/08/2021] [Accepted: 05/08/2021] [Indexed: 01/31/2023] Open
Abstract
With the ever-increasing development in science and technology, as well as social awareness, more requirements are imposed on the production and property of all materials, especially polymeric foams. In particular, rubber foams, compared to thermoplastic foams in general, have higher flexibility, resistance to abrasion, energy absorption capabilities, strength-to-weight ratio and tensile strength leading to their widespread use in several applications such as thermal insulation, energy absorption, pressure sensors, absorbents, etc. To control the rubber foams microstructure leading to excellent physical and mechanical properties, two types of parameters play important roles. The first category is related to formulation including the rubber (type and grade), as well as the type and content of accelerators, fillers, and foaming agents. The second category is associated to processing parameters such as the processing method (injection, extrusion, compression, etc.), as well as different conditions related to foaming (temperature, pressure and number of stage) and curing (temperature, time and precuring time). This review presents the different parameters involved and discusses their effect on the morphological, physical, and mechanical properties of rubber foams. Although several studies have been published on rubber foams, very few papers reviewed the subject and compared the results available. In this review, the most recent works on rubber foams have been collected to provide a general overview on different types of rubber foams from their preparation to their final application. Detailed information on formulation, curing and foaming chemistry, production methods, morphology, properties, and applications is presented and discussed.
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Affiliation(s)
| | - Ali Vahidifar
- Department of Polymer Science and Engineering, University of Bonab, Bonab 5551761167, Iran;
| | - Elnaz Esmizadeh
- Department of Polymer Science and Engineering, University of Bonab, Bonab 5551761167, Iran;
| | - Denis Rodrigue
- Department of Chemical Engineering, Université Laval, Quebec, QC G1V 0A6, Canada;
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40
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Xu Q, Chang X, Zhu Z, Xu L, Chen X, Luo L, Liu X, Qin J. Flexible pressure sensors with high pressure sensitivity and low detection limit using a unique honeycomb-designed polyimide/reduced graphene oxide composite aerogel. RSC Adv 2021; 11:11760-11770. [PMID: 35423645 PMCID: PMC8695940 DOI: 10.1039/d0ra10929k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/15/2021] [Indexed: 12/28/2022] Open
Abstract
It is still a challenge to fabricate flexible pressure sensors that possess high sensitivity, ultralow detection limit, wide sensing range, and fast response for intelligent electronic devices. We here demonstrate superelastic and highly pressure-sensitive polyimide (PI)/reduced graphene oxide (rGO) aerogel sensors with unique honeycomb structure, which were designed and fabricated using a bidirectional freezing technique. This unique honeycomb structure with large aspect ratio is composed of aligned thin lamellar layers and interconnected bridges. The combination of the aligned lamellar layers and the bridges endows the aerogel sensors with high pressure sensitivity (1.33 kPa-1), ultralow detection limit (3 Pa), broad detection range (80% strain, 59 kPa), fast response time (60 ms), and excellent stability during cycling (over 1000 cycles). Remarkably, the aerogel sensors maintain stable piezoresistive performance at -50 °C, 100 °C, and 200 °C in air, indicating promising potential applications in harsh environments. Owing to the high sensitivity and wide sensing range, the aerogel sensors have been used to detect a full-range of human motion including small-scale motion monitoring (wrist pulse, blowing, puffing) and large-scale movement monitoring (finger bending, elbow bending, walking, running). These advantages make the composite aerogels attractive for high-performance flexible pressure sensors and wearable electronic devices.
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Affiliation(s)
- Qiang Xu
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Xinhao Chang
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Zhendong Zhu
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Lin Xu
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Xianchun Chen
- College of Materials Science, Sichuan University Chengdu 610065 China
| | - Longbo Luo
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Xiangyang Liu
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
| | - Jiaqiang Qin
- College of Polymer Science and Engineering, Sichuan University Chengdu 610065 China
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41
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Liu X, Yu L, Zhu Z, Nie Y, Skov AL. Silicone-Ionic Liquid Elastomer Composite with Keratin as Reinforcing Agent Utilized as Pressure Sensor. Macromol Rapid Commun 2021; 42:e2000602. [PMID: 33615585 DOI: 10.1002/marc.202000602] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Indexed: 01/04/2023]
Abstract
Development of a flexible pressure sensor is crucial for the future improvement of the wearable electronic devices designed to detect dynamic human motion. In this study, a novel pressure sensor with remarkably improved force sensing characteristics is obtained through combined usage of polydimethylsiloxane (PDMS) and ionic liquid (IL). Keratin is dispersed homogeneously in the PDMS matrix to serve as a reinforcing filler. High conductivity IL is employed as sensitivity-enhancing constituent in the elastomer, and the effect of the amount of IL on elastomers' pressure-sensing performance is investigated. The elastomer with 70 parts per hundred rubber (phr) IL shows excellent pressure-sensing performance. This novel pressure sensor demonstrates high linear sensitivity (0.037 kPa-1 ) in the large pressure region of 0-10 kPa. Response and recovery times are 8 and 11 ms, respectively, which are much shorter than previously reported. Moreover, the pressure sensor could distinguish different pressures via stable sensing signals in the pressure range of 0 to 50 kPa. The excellent performance of the novel pressure sensor has application potential in various fields, such as health monitoring and soft robotics.
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Affiliation(s)
- Xue Liu
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Soeltofts Plads 227, Kgs Lyngby, 2800, Denmark.,Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Liyun Yu
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Soeltofts Plads 227, Kgs Lyngby, 2800, Denmark
| | - Zicai Zhu
- Shanxi Key Laboratory of Intelligent Robots, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Yi Nie
- Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.,Zhengzhou Institute of Emerging Industrial Technology, Zhengzhou, 450000, China
| | - Anne Ladegaard Skov
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Soeltofts Plads 227, Kgs Lyngby, 2800, Denmark
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42
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Jiang Q, Ma X, Chai Y, Ma H, Tang F, Hua K, Chen R, Jin Z, Wang X, Ji J, Yang X, Li R, Lian H, Xue M. Reduced Graphene Oxide-Polypyrrole Aerogel-Based Coaxial Heterogeneous Microfiber Enables Ultrasensitive Pressure Monitoring of Living Organisms. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5425-5434. [PMID: 33496177 DOI: 10.1021/acsami.0c19949] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pressure sensors for living organisms can monitor both the movement behavior of the organism and pressure changes of the organ, and they have vast perspectives for the health management information platform and disease diagnostics/treatment through the micropressure changes of organs. Although pressure sensors have been widely integrated with e-skin or other wearable systems for health monitoring, they have not been approved for comprehensive surveillance and monitoring of living organisms due to their unsatisfied sensing performance. To solve the problem, here, we introduce a novel structural design strategy to manufacture reduced graphene oxide-polypyrrole aerogel-based microfibers with a typical coaxial heterogeneous structure, which significantly enhances the sensitivity, resolution, and stability of the derived pressure microsensors. The as-fabricated pressure microsensors exhibit ultrahigh sensitivities of 12.84, 18.27, and 4.46 kPa-1 in the pressure ranges of 0-20, 20-40, and 40-65 Pa, respectively, high resolution (0.2 Pa), and good stability in 450 cycles. Furthermore, the microsensor is applied to detect the movement behavior and organic micropressure changes for mice and serves as a platform for monitoring micropressure for the integrative diagnosis both in vivo and in vitro of organisms.
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Affiliation(s)
- Qianqian Jiang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemical & Environmental Engineering, China University of Mining & Technology Beijing, Beijing 100083, China
| | - Xinlei Ma
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yuqiao Chai
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Hui Ma
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Feng Tang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Kun Hua
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing 100029, China
| | - Ruoqi Chen
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhaoxia Jin
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Xusheng Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Junhui Ji
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiubin Yang
- Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing 100029, China
| | - Rui Li
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Huiqin Lian
- College of Materials Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Mianqi Xue
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, Beijing 100190, China
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Pataniya PM, Bhakhar SA, Tannarana M, Zankat C, Patel V, Solanki G, Patel K, Jha PK, Late DJ, Sumesh C. Highly sensitive and flexible pressure sensor based on two-dimensional MoSe2 nanosheets for online wrist pulse monitoring. J Colloid Interface Sci 2021; 584:495-504. [DOI: 10.1016/j.jcis.2020.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/28/2020] [Accepted: 10/04/2020] [Indexed: 01/17/2023]
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44
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Designing Sensing Devices Using Porous Composite Materials. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5010035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The need for portable and inexpensive analytical devices for various critical issues has led researchers to seek novel materials to construct them. Soft porous materials, such as paper and sponges, are ideal candidates for fabricating such devices due to their light weight and high availability. More importantly, their great compatibility toward modifications and add-ons allows them to be customized to match different objectives. As a result, porous material-based composites have been extensively used to construct sensing devices applied in various fields, such as point-of-care testing, environmental sensing, and human motion detection. In this article, we present fundamental thoughts on how to design a sensing device based on these interesting composite materials and provide correlated examples for reader’s references. First, a rundown of devices made with porous composite materials starting from their fabrication techniques and compatible detection methods is given. Thereafter, illustrations are provided on how device function and property improvements are achieved with a delicate use of composite materials. This includes extending device lifetime by using polymer films to protect the base material, while signal readout can be enhanced by a careful selection of protective cover and the application of advanced photo image analysis techniques. In addition to chemical sensors, mechanical responsive devices based on conductive composite materials are also discussed with a focus on base material selection and platform design. We hope the ideas and discussions presented in this article can help researchers interested in designing sensing devices understand the importance and usefulness of composite materials.
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45
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Adepu V, Mattela V, Sahatiya P. A remarkably ultra-sensitive large area matrix of MXene based multifunctional physical sensors (pressure, strain, and temperature) for mimicking human skin. J Mater Chem B 2021; 9:4523-4534. [PMID: 34037069 DOI: 10.1039/d1tb00947h] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Electronic skin has attracted a lot of interest in recent years due to its ability to mimic human skin and also its excellent conformability. Even though there are reports on electronic skin, the major issue that still needs to be resolved is achieving multifunctional sensing at the same time as ultra-high sensitivity. Hence, there is an immediate requirement to develop inexpensive, highly sensitive, and superior performance piezoresistive multifunctional sensors that mimic skin. Herein, an as synthesized pure MXene (Ti3C2Tx) colloidal solution was used to deposit a thin film on flexible polyurethane foam, forming a three-dimensional conductive network with an ultra-high sensitivity of ∼34.24 kPa-1 (1.477-3.185 kPa of applied pressure range) and an elevated gauge factor of ∼323.59 (5-20% of applied strain range). Further merits such as reproducibility, low cost, high scalability, and excellent stability after 2500 cycles imply the sturdiness of the fabricated device. The remarkable sensing efficiency can be attributed to the strong interaction of Ti3C2Tx and PU foam, the inherent 3D network of PU coupled with the excellent electrical properties of Ti3C2Tx, and the interconnection of the unconnected branches present in the internal framework of PU-foam, which indicates the existence of more conduction paths. Besides, the fabricated Ti3C2Tx was deposited on cellulose paper to be utilized as a temperature sensor which displayed ∼2.22 × 10-3 °C-1 TCR and 29.43 meV activation energy. Lastly, real time applications for the fabricated device are investigated including detecting an unknown position of an object and human gestures. The successful demonstration of the low-cost, flexible Ti3C2Tx based piezoresistive sensor has shown innovative applications in biomedical, security, educational, and health sectors.
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Affiliation(s)
- Vivek Adepu
- Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India.
| | | | - Parikshit Sahatiya
- Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani Hyderabad Campus, Hyderabad, 500078, India.
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46
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Ruth SRA, Bao Z. Designing Tunable Capacitive Pressure Sensors Based on Material Properties and Microstructure Geometry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58301-58316. [PMID: 33345539 DOI: 10.1021/acsami.0c19196] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Rationally designed pressure sensors for target applications have been in increasing demand. Capacitive pressure sensors with microstructured dielectrics demonstrate a high capability of meeting this demand due to their wide versatility and high tunability by manipulating dielectric layer material and microstructure geometry. However, to streamline the design and fabrication of desirable sensors, a better understanding of how material microstructure and properties of the dielectric layer affect performance is vital. The ability to predict trends in sensor design and performance simplifies the process of designing and fabricating sensors for various applications. A series of equations are presented that can be used to predict trends in initial capacitance, capacitance change, and sensitivity based on dielectric constant and compressive modulus of the dielectric material and base length, interstructural separation, and height of the dielectric layer microstructures. The efficacy of this model has been experimentally and computationally confirmed. The model was then used to illuminate, qualitatively and quantitatively, the relationships between these key material properties and microstructure geometries. Finally, this model demonstrates high tunability and simple implementation for predictive sensor performance for a wide range of designs to help meet the growing demand for highly specialized sensors.
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Affiliation(s)
- Sara Rachel Arussy Ruth
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
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47
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Wang J, Zhang C, Chen D, Sun M, Liang N, Cheng Q, Ji Y, Gao H, Guo Z, Li Y, Sun D, Li Q, Liu H. Fabrication of a Sensitive Strain and Pressure Sensor from Gold Nanoparticle-Assembled 3D-Interconnected Graphene Microchannel-Embedded PDMS. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51854-51863. [PMID: 33151060 DOI: 10.1021/acsami.0c16152] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Manufacture of uniform, sensitive, and durable microtextured sensing materials is one of the greatest challenges for pressure sensors and electronic skins. Reported in this article is a gold nanoparticle-assembled, 3D-interconnected, graphene microchannel-embedded PDMS (3D GMC-PDMS) film for strain and pressure sensors. The film consists of porous nickel foam with its inner walls coated by multilayer graphene. Embedding in PDMS with etching removal of the Ni yields a 3D GMC-PDMS. Coating the inner walls with Au nanoparticles yields an Au nanoparticle-assembled 3D GMC-PDMS (AuNPs-GMC-PDMS) film, which is useful as an ultrasensitive pressure and strain sensor. This sensor exhibits a wide detection range (∼50 kPa) and ultrahigh sensitivity of 5.37, 1.56, and 0.5 kPa-1 in the ranges of <1, 1-10, and 10-50 kPa, respectively. Its lower detection limit is 4.4 Pa, its response time is 20 ms, and its strain factor is up to 15. Comparison of a AuNPs-GMC-PDMS film with a 3D GMC-PDMS film reveals a sensitivity improvement of 40 times in the 0-1 kPa pressure range and a gauge factor of more than 4 times in the 0-30% tensile strain range. The device has broad applications as a traditional or wearable medical sensor.
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Affiliation(s)
- Jian Wang
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
- Department of Physics, School of Physical Science and Technology, University of Jinan, Jinan 250011, China
| | - Congcong Zhang
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Duo Chen
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Mingyuan Sun
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Na Liang
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Qilin Cheng
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Yanchen Ji
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Haoyang Gao
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Zhijie Guo
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Yang Li
- Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan 250011, China
| | - Dehui Sun
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
| | - Qinfei Li
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250011, China
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research (iAIR), Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan 250011, China
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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48
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Peng C, Wu R, Yang Y, Li C, Lin Y, Chen S, Kuai Z, Li L. Hydrothermal formation of controllable hexagonal holes and Er 2O 3/Er 2O 3-RGO particles on silicon wafers toward superhydrophobic surfaces. J Colloid Interface Sci 2020; 580:768-775. [PMID: 32717443 DOI: 10.1016/j.jcis.2020.07.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 10/23/2022]
Abstract
In this work, controllable hexagonal holes and distributed Er2O3/Er2O3- graphene particles are fabricated on silicon wafers using a straightforward, hydrofluoric, acid-free, and strong alkali-free hydrothermal method. As long as erbium nitrate hydrate and urea coexist in the reaction mixture, silicon wafers can be synthesized successfully using controllable hexagonal hole structures that are regulated by hydrothermal temperature and the addition of graphene oxide and hexadecyl trimethyl ammonium bromide to the reaction mixture. Correspondingly, the wettability of these silicon wafers also is controllable due to the structure that can be changed from hydrophilic (89.3°) to superhydrophobic (153.1°). In short, this work not only provides a simple and nontoxic approach for preparing hexagonal hole structured silicon wafers, but also produces superhydrophobic silicon wafers that potentially can be applied for corrosion-resistant coatings, oil-water separation, and other fields.
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Affiliation(s)
- Chang Peng
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Ruoxi Wu
- Key Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Department of Water Science and Engineering, College of Civil Engineering, Hunan University, 410082 Changsha, PR China
| | - Yuhongnan Yang
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Chuang Li
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Yuxiang Lin
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Shu Chen
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Zeyuan Kuai
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China
| | - Ling Li
- College of Chemistry and Materials Science, Hunan Agricultural University, Hunan 410082, PR China.
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49
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Guo H, Tan YJ, Chen G, Wang Z, Susanto GJ, See HH, Yang Z, Lim ZW, Yang L, Tee BCK. Artificially innervated self-healing foams as synthetic piezo-impedance sensor skins. Nat Commun 2020; 11:5747. [PMID: 33184285 PMCID: PMC7665015 DOI: 10.1038/s41467-020-19531-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/12/2020] [Indexed: 11/09/2022] Open
Abstract
Human skin is a self-healing mechanosensory system that detects various mechanical contact forces efficiently through three-dimensional innervations. Here, we propose a biomimetic artificially innervated foam by embedding three-dimensional electrodes within a new low-modulus self-healing foam material. The foam material is synthesized from a one-step self-foaming process. By tuning the concentration of conductive metal particles in the foam at near-percolation, we demonstrate that it can operate as a piezo-impedance sensor in both piezoresistive and piezocapacitive sensing modes without the need for an encapsulation layer. The sensor is sensitive to an object's contact force directions as well as to human proximity. Moreover, the foam material self-heals autonomously with immediate function restoration despite mechanical damage. It further recovers from mechanical bifurcations with gentle heating (70 °C). We anticipate that this material will be useful as damage robust human-machine interfaces.
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Affiliation(s)
- Hongchen Guo
- NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore, Singapore
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Yu Jun Tan
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
- Institute of Innovation in Health Technology (iHealthtech), National University of Singapore, Singapore, Singapore
| | - Ge Chen
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Zifeng Wang
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Glenys Jocelin Susanto
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Hian Hian See
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Zijie Yang
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Zi Wei Lim
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore
| | - Le Yang
- Institute of Materials Research and Engineering, Agency for Science Technology and Research, Singapore, Singapore
| | - Benjamin C K Tee
- NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, Singapore, Singapore.
- Department of Materials Science and Engineering (MSE), National University of Singapore, Singapore, Singapore.
- Institute of Innovation in Health Technology (iHealthtech), National University of Singapore, Singapore, Singapore.
- Institute of Materials Research and Engineering, Agency for Science Technology and Research, Singapore, Singapore.
- Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
- N.1 Institute of Health, National University of Singapore, Singapore, Singapore.
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50
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Al-Qatatsheh A, Morsi Y, Zavabeti A, Zolfagharian A, Salim N, Z. Kouzani A, Mosadegh B, Gharaie S. Blood Pressure Sensors: Materials, Fabrication Methods, Performance Evaluations and Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2020; 20:E4484. [PMID: 32796604 PMCID: PMC7474433 DOI: 10.3390/s20164484] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/31/2020] [Accepted: 08/04/2020] [Indexed: 12/14/2022]
Abstract
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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Affiliation(s)
- Ahmed Al-Qatatsheh
- Faculty of Science, Engineering, and Technology (FSET), Swinburne University of Technology, Melbourne VIC 3122, Australia; (Y.M.); (N.S.)
| | - Yosry Morsi
- Faculty of Science, Engineering, and Technology (FSET), Swinburne University of Technology, Melbourne VIC 3122, Australia; (Y.M.); (N.S.)
| | - Ali Zavabeti
- Department of Chemical Engineering, The University of Melbourne, Parkville VIC 3010, Australia;
| | - Ali Zolfagharian
- Faculty of Science, Engineering and Built Environment, School of Engineering, Deakin University, Waurn Ponds VIC 3216, Australia; (A.Z.); (A.Z.K.)
| | - Nisa Salim
- Faculty of Science, Engineering, and Technology (FSET), Swinburne University of Technology, Melbourne VIC 3122, Australia; (Y.M.); (N.S.)
| | - Abbas Z. Kouzani
- Faculty of Science, Engineering and Built Environment, School of Engineering, Deakin University, Waurn Ponds VIC 3216, Australia; (A.Z.); (A.Z.K.)
| | - Bobak Mosadegh
- Dalio Institute of Cardiovascular Imaging, Weill Cornell Medicine, New York, NY 10065, USA;
| | - Saleh Gharaie
- Faculty of Science, Engineering and Built Environment, School of Engineering, Deakin University, Waurn Ponds VIC 3216, Australia; (A.Z.); (A.Z.K.)
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