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Cui Y, Sun M, Liu C, Deng Y. All-inorganic ultrathin high-sensitivity transparent temperature sensor based on a Mn-Co-Ni-O nanofilm. MICROSYSTEMS & NANOENGINEERING 2024; 10:70. [PMID: 38803351 PMCID: PMC11128445 DOI: 10.1038/s41378-024-00706-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/25/2024] [Accepted: 04/14/2024] [Indexed: 05/29/2024]
Abstract
The demand for optically transparent temperature sensors in intelligent devices is increasing. However, the performance of these sensors, particularly in terms of their sensitivity and resolution, must be further enhanced. This study introduces a novel transparent and highly sensitive temperature sensor characterized by its ultrathin, freestanding design based on a Mn-Co-Ni-O nanofilm. The Mn-Co-Ni-O-based sensor exhibits remarkable sensitivity, with a temperature coefficient of resistance of -4% °C-1, and can detect minuscule temperature fluctuations as small as 0.03 °C. Additionally, the freestanding sensor can be transferred onto any substrate for versatile application while maintaining robust structural stability and excellent resistance to interference, indicating its suitability for operation in challenging environments. Its practical utility in monitoring the surface temperature of optical devices is demonstrated through vertical integration of the sensor and a micro light-emitting diode on a polyimide substrate. Moreover, an experiment in which the sensor is implanted in rats confirms its favorable biocompatibility, highlighting the promising applications of the sensor in the biomedical domain.
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Affiliation(s)
- Yuanyuan Cui
- Research Institute for Frontier Science, Beihang University, Beijing, 100191 China
- School of Materials Science and Engineering, Beihang University, Beijing, 100191 China
- Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province, Hangzhou Innovation Institute of Beihang University, Hangzhou, 310051 China
| | - Mengwei Sun
- School of Materials Science and Engineering, Beihang University, Beijing, 100191 China
| | - Changbo Liu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191 China
- Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province, Hangzhou Innovation Institute of Beihang University, Hangzhou, 310051 China
| | - Yuan Deng
- Research Institute for Frontier Science, Beihang University, Beijing, 100191 China
- Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province, Hangzhou Innovation Institute of Beihang University, Hangzhou, 310051 China
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2
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Liu J, Wang L, Xu R, Zhang X, Zhao J, Liu H, Chen F, Qu L, Tian M. Underwater Gesture Recognition Meta-Gloves for Marine Immersive Communication. ACS NANO 2024; 18:10818-10828. [PMID: 38597459 DOI: 10.1021/acsnano.3c13221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Rapid advancements in immersive communications and artificial intelligence have created a pressing demand for high-performance tactile sensing gloves capable of delivering high sensitivity and a wide sensing range. Unfortunately, existing tactile sensing gloves fall short in terms of user comfort and are ill-suited for underwater applications. To address these limitations, we propose a flexible hand gesture recognition glove (GRG) that contains high-performance micropillar tactile sensors (MPTSs) inspired by the flexible tube foot of a starfish. The as-prepared flexible sensors offer a wide working range (5 Pa to 450 kPa), superfast response time (23 ms), reliable repeatability (∼10000 cycles), and a low limit of detection. Furthermore, these MPTSs are waterproof, which makes them well-suited for underwater applications. By integrating the high-performance MPTSs with a machine learning algorithm, the proposed GRG system achieves intelligent recognition of 16 hand gestures under water, which significantly extends real-time and effective communication capabilities for divers. The GRG system holds tremendous potential for a wide range of applications in the field of underwater communications.
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Affiliation(s)
- Jiaxu Liu
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Lihong Wang
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Ruidong Xu
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Xinwei Zhang
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Jisheng Zhao
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Hong Liu
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Fuxing Chen
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Lijun Qu
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
| | - Mingwei Tian
- Health & Protective Smart Textiles Research Center (HPT)/Research Center for Intelligent & Wearable Technology, College of Textiles & Clothing, State Key Laboratory of Bio-Fibers & Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, People's Republic of China
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3
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Zhang Y, Zeng J, Wang Y, Jiang G. Flexible Three-Dimensional Force Tactile Sensor Based on Velostat Piezoresistive Films. MICROMACHINES 2024; 15:486. [PMID: 38675297 PMCID: PMC11051711 DOI: 10.3390/mi15040486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024]
Abstract
The development of a high-performance, low-cost, and simply fabricated flexible three-dimensional (3D) force sensor is essential for the future development of electronic skins suitable for the detection of normal and shear forces for several human motions. In this study, a sandwich-structured flexible 3D force tactile sensor based on a polyethylene-carbon composite material (velostat) is presented. The sensor has a large measuring range, namely, 0-12 N in the direction of the normal force and 0-2.6 N in the direction of the shear force. For normal forces, the sensitivity is 0.775 N-1 at 0-1 N, 0.107 N-1 between 1 and 3 N, and 0.003 N-1 at 3 N and above. For shear forces, the measured sensitivity is 0.122 and 0.12 N-1 in x- and y-directions, respectively. Additionally, the sensor exhibits good repeatability and stability after 2500 cycles of loading and releasing. The response and recovery times of the sensor are as fast as 40 and 80 ms, respectively. Furthermore, we prepared a glove-like sensor array. When grasping the object using the tactile glove, the information about the force applied to the sensing unit can be transmitted through a wireless system in real-time and displayed on a personal computer (PC). The prepared flexible 3D force sensor shows broad application prospects in the field of smart wearable devices.
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Affiliation(s)
- Yuanxiang Zhang
- College of Mechanical Engineering, Quzhou University, Quzhou 324000, China; (J.Z.); (Y.W.); (G.J.)
| | - Jiantao Zeng
- College of Mechanical Engineering, Quzhou University, Quzhou 324000, China; (J.Z.); (Y.W.); (G.J.)
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Yong Wang
- College of Mechanical Engineering, Quzhou University, Quzhou 324000, China; (J.Z.); (Y.W.); (G.J.)
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Guoquan Jiang
- College of Mechanical Engineering, Quzhou University, Quzhou 324000, China; (J.Z.); (Y.W.); (G.J.)
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
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Lu P, Li X, Xu J, Fan Y, Sun J, Liang Y, Tian L, Ming W, Ren L, Zhao J. Bio-Inspired Interlocking Structures for Enhancing Flexible Coatings Adhesion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2312037. [PMID: 38409635 DOI: 10.1002/smll.202312037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/01/2024] [Indexed: 02/28/2024]
Abstract
The flexible protective coatings and substrates frequently exhibit unstable bonding in industrial applications. For strong interfacial adhesion of heterogeneous materials and long-lasting adhesion of flexible protective coatings even in harsh corrosive environments. Inspired by the interdigitated structures in Phloeodes diabolicus elytra, a straightforward magnetic molding technique is employed to create an interlocking microarray for reinforced heterogeneous assembly. Benefiting from this bio-inspired microarrays, the interlocking polydimethylsiloxane (PDMS) coating recorded a 270% improvement in tensile adhesion and a 520% increase in shear resistance, approaching the tensile limitation of PDMS. The elastic polyurethane-polyamide (PUPI) coating equipped with interlocking structures demonstrated a robust adhesion strength exceeding 10.8 MPa and is nearly unaffected by the corrosion immersion. In sharp contrast, its unmodified counterpart exhibited low initial adhesion and maintain ≈20% of its adhesion strength after 30 d of immersion. PUPI coating integrated with microarrays exhibits superior resistance to corrosion (30 d, |Z|0.01HZ ≈1010 Ω cm2 , Rct ≈108 Ω cm2 ), cavitation and long-term adhesion retention. These interlocking designs can also be adapted to curved surfaces by 3D printing and enhances heterogeneous assembly of non-bonded materials like polyvinylidene fluoride (PTFE) and PDMS. This bio-inspired interlocking structures offers a solution for durably bonding incompatible interfaces across varied engineering applications.
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Affiliation(s)
- Pengpeng Lu
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Xin Li
- College of Chemistry, Jilin University, Changchun, 130022, China
| | - Jingyang Xu
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Yong Fan
- College of Chemistry, Jilin University, Changchun, 130022, China
| | - Jiyu Sun
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Yunhong Liang
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Limei Tian
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Weihua Ming
- Department of Chemistry and Biochemistry, Georgia Southern University, P.O. Box 8064, Statesboro, GA, 30460, USA
| | - Luquan Ren
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Jie Zhao
- Key Laboratory of Bio-inspired Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
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5
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Li S, Cui X, Yang Y. Oblique Pyramid Microstructure-Patterned Flexible Sensors for Pressure and Visual Temperature Sensing. ACS APPLIED MATERIALS & INTERFACES 2023; 15:59760-59767. [PMID: 38085050 PMCID: PMC10755697 DOI: 10.1021/acsami.3c12625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/20/2023] [Accepted: 11/25/2023] [Indexed: 12/28/2023]
Abstract
Flexible tactile sensors have garnered considerable attention in diverse fields. Among them, the sensors integrated with multifunctional tactile sensing features can simultaneously detect various stimuli, such as pressure and temperature, and are thus suitable for practical applications. However, integrating multiple sensor modalities within a solitary pixel invariably encounters various limitations encompassing interplay among disparate sensors, intricate structural design demands, and the complexities and high costs associated with fabrication. Herein, we harness a visual sensing mechanism to synergize with electric sensors, thereby realizing a tactile sensor reliant on thermochromic microstructures for simultaneous pressure and temperature sensing. The thermal distribution could be easily displayed by the color change of the sensor, avoiding inference between the sensing units, which is beneficial for low-cost mass fabrication. A capacitor sensor with dual-scale oblique pyramid microstructures in its dielectric layer is used for the pressure sensing function, resulting in improved sensitivity and an extended measurement range. This innovative tactile sensor design offers insights into tactile sensing mechanisms, paving the way for cost-effective, high-performance, and multimodal sensor fabrication.
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Affiliation(s)
- Shujuan Li
- School of Aerospace Engineering, Xiamen University, Xiamen 361102, China
| | - Xiyue Cui
- School of Aerospace Engineering, Xiamen University, Xiamen 361102, China
| | - Yuanyuan Yang
- School of Aerospace Engineering, Xiamen University, Xiamen 361102, China
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6
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Wen X, Deng Z, Wang H, Shi J, Wang S, Wang H, Song Y, Du Z, Qiu J, Cheng X. High strength, self-healing sensitive ionogel sensor based on MXene/ionic liquid synergistic conductive network for human-motion detection. J Mater Chem B 2023; 11:11251-11264. [PMID: 37823270 DOI: 10.1039/d3tb01570j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Ionogels with both high strength and high conductivity for wearable strain and pressure dual-mode sensors are needed for human motion and health monitoring. Here, multiple hydrogen bonds are introduced through imidazolidinyl urea (IU) as a chain extender to provide high mechanical and self-healing properties for the water-borne polyurethane (WPU). The MXene/ionic liquids synergistic conductive network provides excellent conductivity and also reduces the relative content of ionic liquids to maintain the mechanical properties of the ionogels. The mechanical strength of this ionogel reached 1.81-2.24 MPa and elongation at break reached 570-624%. It also has excellent conductivity (22.7-37.5 mS m-1), gauge factor (GF) (as a strain sensor, GF = 1.8), sensitivity (S) (as a press sensor, S1 = 29.8 kPa-1, S2 = 1.3 kPa-1), and fast response time (as a strain sensor = 185 ms; as a press sensor = 204 ms). The ionogel also exhibits rapid photothermal self-healing capabilities due to the inherent photothermal behavior of MXene. It can maintain good elasticity and conductivity at low temperatures. In addition, this ionogel is able to stretch for 1200 cycles without significant change in the relative change of resistance. The ionogel can be assembled as a strain sensor for monitoring human motion and as a pressure sensor array for obtaining pressure magnitude and position information.
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Affiliation(s)
- Xiao Wen
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Zhipeng Deng
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Hui Wang
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, PR China
| | - Jianyang Shi
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Shuang Wang
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Haibo Wang
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Yueming Song
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Zongliang Du
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Jinghong Qiu
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
| | - Xu Cheng
- College of Biomass Science and Engineering, Orthopedic Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610065, China.
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7
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Jin L, Ju S, Zhao Y, Xing S, Tang J, He Y, Chen C, Liang G, Zhang J. Super tough and high adhesive eutectic ionogels enabled by high-density hydrogen bond network. RSC Adv 2023; 13:31925-31934. [PMID: 37915444 PMCID: PMC10617370 DOI: 10.1039/d3ra05120j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023] Open
Abstract
Ionogels have attracted tremendous interest for flexible electronics due to their excellent deformability, conductivity, and environmental stability. However, most ionogels suffer from low strength and poor toughness, which limit their practical applications. This article presents a strategy for fabricating ionogels with high toughness by constructing high-density hydrogen bonds within their microstructure. The ionogels exhibit a maximum fracture strength of 11.44 MPa, and can sustain a fracture strain of 506%. They also demonstrate a fracture energy of 27.29 MJ m-3 and offer a wide range of mechanical property adjustments (fracture stress from 0.3 to 11.44 MPa, fracture strain from 506% to 1050%). Strain sensors assembled with ionogels demonstrate exceptional sensing performance and enable motion detection of human joints. This study provides a new approach for achieving strong and tough ionogel design used for high-performance flexible electronic applications.
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Affiliation(s)
- Li Jin
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Su Ju
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Yiming Zhao
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Suli Xing
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Jun Tang
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Yonglyu He
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Chen Chen
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
| | - Gengyuan Liang
- High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center Mianyang 621000 China
| | - Jianwei Zhang
- College of Aerospace Science and Engineering, National University of Defense Technology Changsha 410073 China
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Zhang Z, Liu G, Li Z, Zhang W, Meng Q. Flexible tactile sensors with biomimetic microstructures: Mechanisms, fabrication, and applications. Adv Colloid Interface Sci 2023; 320:102988. [PMID: 37690330 DOI: 10.1016/j.cis.2023.102988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/07/2023] [Accepted: 08/26/2023] [Indexed: 09/12/2023]
Abstract
In recent years, flexible devices have gained rapid development with great potential in daily life. As the core component of wearable devices, flexible tactile sensors are prized for their excellent properties such as lightweight, stretchable and foldable. Consequently, numerous high-performance sensors have been developed, along with an array of innovative fabrication processes. It has been recognized that the improvement of the single performance index for flexible tactile sensors is not enough for practical sensing applications. Therefore, balancing and optimization of overall performance of the sensor are extensively anticipated. Furthermore, new functional characteristics are required for practical applications, such as freeze resistance, corrosion resistance, self-cleaning, and degradability. From a bionic perspective, the overall performance of a sensor can be optimized by constructing bionic microstructures which can deliver additional functional features. This review briefly summarizes the latest developments in bionic microstructures for different types of tactile sensors and critically analyzes the sensing performance of fabricated flexible tactile sensors. Based on this, the application prospects of bionic microstructure-based tactile sensors in human detection and human-machine interaction devices are introduced.
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Affiliation(s)
- Zhuoqing Zhang
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China; Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry, Key Laboratory of Paper-based Functional Materials of China National Light Industry, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Guodong Liu
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China; Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry, Key Laboratory of Paper-based Functional Materials of China National Light Industry, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China.
| | - Zhijian Li
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China; Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry, Key Laboratory of Paper-based Functional Materials of China National Light Industry, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Wenliang Zhang
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China; Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry, Key Laboratory of Paper-based Functional Materials of China National Light Industry, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
| | - Qingjun Meng
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China; Key Laboratory of Functional Printing and Transport Packaging of China National Light Industry, Key Laboratory of Paper-based Functional Materials of China National Light Industry, Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science and Technology, Xi'an 710021, People's Republic of China
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9
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Wang X, Zhao Z, Zhang M, Liang Y, Liu Y. Polyurethanes Modified by Ionic Liquids and Their Applications. Int J Mol Sci 2023; 24:11627. [PMID: 37511385 PMCID: PMC10380480 DOI: 10.3390/ijms241411627] [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: 06/30/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Polyurethane (PU) refers to the polymer containing carbamate groups in its molecular structure, generally obtained by the reaction of isocyanate and alcohol. Because of its flexible formulation, diverse product forms, and excellent performance, it has been widely used in mechanical engineering, electronic equipment, biomedical applications, etc. Through physical or chemical methods, ionic groups are introduced into PU, which gives PU electrical conductivity, flame-retardant, and antistatic properties, thus expanding the application fields of PU, especially in flexible devices such as sensors, actuators, and functional membranes for batteries and gas absorption. In this review, we firstly introduced the characteristics of PU in chemical and microphase structures and their related physical and chemical performance. To improve the performance of PU, ionic liquids (ILs) were applied in the processing or synthesis of PU, resulting in a new type of PU called ionic PU. In the following part of this review, we mainly summarized the fabrication methods of IL-modified PUs via physical blending and the chemical copolymerization method. Then, we summarized the research progress of the applications for IL-modified PUs in different fields, including sensors, actuators, transistors, antistatic films, etc. Finally, we discussed the future development trends and challenges faced by IL-modified PUs.
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Affiliation(s)
- Xue Wang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Zhenjie Zhao
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Meiyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yongri Liang
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Yingdan Liu
- State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China
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10
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Hao S, Yang C, Yang X, Li T, Ma L, Jiao Y, Song H. Highly Tough, Stretchable, and Recyclable Ionogels with Crosslink-Enhanced Emission Characteristics for Anti-Counterfeiting and Motion Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:16132-16143. [PMID: 36921264 DOI: 10.1021/acsami.3c02352] [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
Traditional luminescent ionogels often suffer from poor mechanical properties and a lack of recyclability and regeneration, which limits their further application and sustainable development. Herein, a luminescent ionogel with strong mechanical properties and good recyclability has been designed and fabricated by introducing dynamic coordination bonds via in situ one-step crosslinking of acrylic acid in ionic liquid of 1-ethyl-3-methylimidazolium diethylphosphate by zinc dimethacrylate. Due to the special crosslinking of dynamic coordination bonds along with the hydrogen bond interaction, the as-prepared ionogel displays excellent stretchability and toughness, good self-adhesiveness, fast self-healability, and recyclability. Interestingly, the obtained ionogels exhibit tunable photoluminescence caused by the crosslink-enhanced emission (CEE) effect from the coordination bonds. Importantly, ionogels can be applied in information storage, information encryption, anti-counterfeiting due to their simple and in situ preparation method, and their special fluorescence performances. Moreover, an ionogel-based wearable sensor has rapid response time and a high gauge factor of 3.22 within a wide strain range from 1 to 700%, which can monitor various human movements accurately from subtle to large-scale motions. This paper offers a promising way to fabricate sustainable functional ionic liquid-based composites with CEE characteristics via an in situ one-step polymerization method.
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Affiliation(s)
- Shuai Hao
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Chen Yang
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Xuemeng Yang
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Tianci Li
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Lianhua Ma
- College of Quality and Technical Supervision, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Yunhong Jiao
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongzan Song
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
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11
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Fan X, Liu S, Jia Z, Koh JJ, Yeo JCC, Wang CG, Surat'man NE, Loh XJ, Le Bideau J, He C, Li Z, Loh TP. Ionogels: recent advances in design, material properties and emerging biomedical applications. Chem Soc Rev 2023; 52:2497-2527. [PMID: 36928878 DOI: 10.1039/d2cs00652a] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Ionic liquid (IL)-based gels (ionogels) have received considerable attention due to their unique advantages in ionic conductivity and their biphasic liquid-solid phase property. In ionogels, the negligibly volatile ionic liquid is retained in the interconnected 3D pore structure. On the basis of these physical features as well as the chemical properties of well-chosen ILs, there is emerging interest in the anti-bacterial and biocompatibility aspects. In this review, the recent achievements of ionogels for biomedical applications are summarized and discussed. Following a brief introduction of the various types of ILs and their key physicochemical and biological properties, the design strategies and fabrication methods of ionogels are presented by means of different confining networks. These sophisticated ionogels with diverse functions, aimed at biomedical applications, are further classified into several active domains, including wearable strain sensors, therapeutic delivery systems, wound healing and biochemical detections. Finally, the challenges and possible strategies for the design of future ionogels by integrating materials science with a biological interface are proposed.
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Affiliation(s)
- Xiaotong Fan
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Siqi Liu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore.
| | - Zhenhua Jia
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, 450001, P. R. China. .,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - J Justin Koh
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Jayven Chee Chuan Yeo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Chen-Gang Wang
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Nayli Erdeanna Surat'man
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore.
| | - Xian Jun Loh
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Jean Le Bideau
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel, IMN, F-44000 Nantes, France.
| | - Chaobin He
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Zibiao Li
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore. .,Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore. .,Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Singapore 138634, Singapore
| | - Teck-Peng Loh
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhengzhou, 450001, P. R. China. .,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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12
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Qu M, Lv Y, Ge J, Zhang B, Wu Y, Shen L, Liu Q, Yan M, He J. Hydrophobic and Multifunctional Strain, Pressure and Temperature Sensor Based on TPU/SiO2-ILs Ionogel for Human motion monitoring, Liquid Drop Monitoring, Underwater Applications. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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13
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Karmakar RS, Chu CP, Li CL, Hsueh CH, Liao YC, Lu YW. Skin-Inspired Tactile Sensor on Cellulose Fiber Substrates with Interfacial Microstructure for Health Monitoring and Guitar Posture Feedback. BIOSENSORS 2023; 13:174. [PMID: 36831940 PMCID: PMC9953271 DOI: 10.3390/bios13020174] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/14/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Skin-inspired flexible tactile sensors, with interfacial microstructure, are developed on cellulose fiber substrates for subtle pressure applications. Our device is made of two cellulose fiber substrates with conductive microscale structures, which emulate the randomly distributed spinosum in between the dermis and epidermis layers of the human skin. The microstructures not only permit a higher stress concentration at the tips but also generate electrical contact points and change contact resistance between the top and bottom substrates when the pressure is applied. Meanwhile, cellulose fibers possessing viscoelastic and biocompatible properties are utilized as substrates to mimic the dermis and epidermis layers of the skin. The electrical contact resistances (ECR) are then measured to quantify the tactile information. The microstructures and the substrate properties are studied to enhance the sensors' sensitivity. A very high sensitivity (14.4 kPa-1) and fast recovery time (approx. 2.5 ms) are achieved in the subtle pressure range (approx. 0-0.05 kPa). The device can detect subtle pressures from the human body due to breathing patterns and voice activity showing its potential for healthcare. Further, the guitar strumming and chord progression of the players with different skill levels are assessed to monitor the muscle strain during guitar playing, showing its potential for posture feedback in playing guitar or another musical instrument.
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Affiliation(s)
- Rajat Subhra Karmakar
- Department of Biomechatronics Engineering, National Taiwan University, 10617 Taipei, Taiwan
| | - Chia-Pei Chu
- Department of Chemical Engineering, National Taiwan University, 10617 Taipei, Taiwan
| | - Chia-Lin Li
- Department of Materials Science and Engineering, National Taiwan University, 10617 Taipei, Taiwan
| | - Chun-Hway Hsueh
- Department of Materials Science and Engineering, National Taiwan University, 10617 Taipei, Taiwan
| | - Ying-Chih Liao
- Department of Chemical Engineering, National Taiwan University, 10617 Taipei, Taiwan
| | - Yen-Wen Lu
- Department of Biomechatronics Engineering, National Taiwan University, 10617 Taipei, Taiwan
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14
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Zhou Y, Zhao L, Jia Q, Wang T, Sun P, Liu F, Yan X, Wang C, Sun Y, Lu G. Multifunctional Flexible Ionic Skin with Dual-Modal Output Based on Fibrous Structure. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55109-55118. [PMID: 36448961 DOI: 10.1021/acsami.2c17498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Flexible wearable electronic devices with multiple sensing functions that simulate human skin in all aspects have become a popular research topic. However, the current expensive and time-consuming means of integration and the complex decoupling process are hampering the further development of multifunctional sensors. Here, an ultraflexible ionic fiber membrane (IFM) prepared by a simple electrospinning technique is reported, which exhibits pressure and humidity sensing properties. With the help of different electrode structures, the IFM-based multifunctional sensor achieved pressure and humidity detection with different sensing mechanisms. Pressure sensing with high sensitivity (49.7 kPa-1 at 0-30 kPa) and wide detection range (0-220 kPa) was indicated by the capacitive signal. Humidity sensing with high linearity (1.086% per percent relative humidity (RH)) in the range 15%-90% RH was indicated by the resistance signal. In particular, the multimodal output of capacitance/resistance corresponding to pressure/humidity in this study directly addresses the problem of accurately distinguishing the two stimuli. Furthermore, we have demonstrated that the impact between pressure and humidity is negligible when measured simultaneously and independently. Because of the excellent pressure/humidity sensing performance, we have fabricated a smart bracelet and mask for pulse, skin moisture, and breathe monitoring, which indicates the promising future of multifunctional flexible sensors based on IFM in the healthcare field.
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Affiliation(s)
- Yue Zhou
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Liupeng Zhao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Qisong Jia
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Tianshuang Wang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Peng Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Fangmeng Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Xu Yan
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Chenguang Wang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Yanfeng Sun
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
| | - Geyu Lu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun130012, China
- International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun130012, China
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15
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Wang L, Liu S, Cheng J, Peng Y, Meng F, Wu Z, Chen H. Poly( N, N-dimethyl)acrylamide-based ion-conductive gel with transparency, self-adhesion and rapid self-healing properties for human motion detection. SOFT MATTER 2022; 18:6115-6123. [PMID: 35943040 DOI: 10.1039/d2sm00786j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Flexible strain sensors have been extensively studied for their potential value in monitoring human activity and health. However, it is still challenging to develop multifunctional flexible strain sensors with simultaneously high transparency, strong self-adhesion, fast self-healing and excellent tensile properties. In this study, we used N,N-dimethylacrylamide (DMA) in the imidazolium-based ionic liquid 1-butyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl] imide ([BMIM][Tf2N]) for "one-step" UV irradiation. A poly(N,N-dimethyl)acrylamide (PDMA) ion-conductive gel was prepared by site polymerization. Based on the good compatibility between PDMA and ionic liquid, the prepared ion-conductive gel has good transparency (∼90%), excellent stretchability (1080%), strong self-adhesion (67.57 kPa), fast self-healing (2 s at room temperature) and great antibacterial activity (∼99% bacterial killing efficiency). Moreover, the strain sensor based on the PDMA ion-conductive gel has good electromechanical performance and can detect different human motions. Based on the simple and easy-to-operate preparation method and the endowed multifunctionality of the PDMA ion-conductive gel, it has broad application prospects in the field of flexible electronic devices.
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Affiliation(s)
- Ling Wang
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Shengjie Liu
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Jingjing Cheng
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Yao Peng
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Fangfei Meng
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Zhaoqiang Wu
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
| | - Hong Chen
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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16
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Lin X, Xue H, Li F, Mei H, Zhao H, Zhang T. All-Nanofibrous Ionic Capacitive Pressure Sensor for Wearable Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:31385-31395. [PMID: 35771761 DOI: 10.1021/acsami.2c01806] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Currently, with the development of electronic skins (e-skins), wearable pressure sensors with low energy consumption and excellent wearability for long-term physiological signal monitoring are urgently desired but remain a challenge. Capacitive-type devices are desirable candidates for wearable applications, but traditional capacitive pressure sensors are limited by low capacitance and sensitivity. In this study, an all-nanofibrous ionic pressure sensor (IPS) is developed, and the formation of an electrical double layer at the electrode/electrolyte contact interface significantly enhances the capacitance and sensing properties. The IPS is fabricated by sandwiching a nanofibrous ionic gel sensing layer between two thermoplastic polyurethane nanofibrous membranes with graphene electrodes. The IPS has a high sensitivity of 217.5 kPa-1 in the pressure range of 0-5 kPa, which is much higher than that of conventional capacitive pressure sensors. Combined with the rapid response and recovery speed (30 and 60 ms), the IPS is suitable for real-time monitoring of multiple physiological signals. Moreover, the nanofiber network endows the IPS with excellent air permeability and heat dissipation, which guarantees comfort during long-term wearing. This work provides a viable strategy to improve the wearability of wearable sensors, which can promote healthcare and human-machine interaction applications.
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Affiliation(s)
- Xiuzhu Lin
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Hua Xue
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Fan Li
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Haixia Mei
- College of Electronic Information Engineering, Changchun University, Changchun 130022, China
| | - Hongran Zhao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
| | - Tong Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
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17
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Li T, Liu F, Yang X, Hao S, Cheng Y, Li S, Zhu H, Song H. Muscle-Mimetic Highly Tough, Conductive, and Stretchable Poly(ionic liquid) Liquid Crystalline Ionogels with Ultrafast Self-Healing, Super Adhesive, and Remarkable Shape Memory Properties. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29261-29272. [PMID: 35699738 DOI: 10.1021/acsami.2c06662] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Here, we report a simple method for preparing muscle-mimetic highly tough, conductive, and stretchable liquid crystalline ionogels which contains only one poly(ionic liquid) (PIL) in an ionic liquid via in situ free radical photohomopolymerization by using nitrogen gas instead of air atmosphere. Due to eliminating the inhibition caused by dissolved oxygen, the polymerization under nitrogen gas has much higher molecular weight, lower critical sol-gel concentration, and stronger mechanical properties. More importantly, benefiting from the unique loofah-like microstructures along with the strong internal ionic interactions, entanglements of long PIL chains and liquid crystalline domains, the ionogels show special optical anisotropic, superstretchability (>8000%), high fracture strength (up to 16.52 MPa), high toughness (up to 39.22 MJ/m3), and have ultrafast self-healing, ultrastrong adhesive, and excellent shape memory properties. Due to its excellent stretchability and good conductive-strain responsiveness, the as-prepared ionogel can be easily applied for high-performance flexible and wearable sensors for motion detecting. Therefore, this paper provides an effective route and developed method to generate highly stretchable conductive liquid crystalline ionogels/elastomers that can be used in widespread flexible and wearable electronics.
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Affiliation(s)
- Tianci Li
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Fang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xuemeng Yang
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Shuai Hao
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Yan Cheng
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Shuaijie Li
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongnan Zhu
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
| | - Hongzan Song
- College of Chemistry & Environmental Science, Hebei University, Baoding, Hebei Province 071002, P. R. China
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18
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Manero A, Crawford KE, Prock‐Gibbs H, Shah N, Gandhi D, Coathup MJ. Improving disease prevention, diagnosis, and treatment using novel bionic technologies. Bioeng Transl Med 2022; 8:e10359. [PMID: 36684104 PMCID: PMC9842045 DOI: 10.1002/btm2.10359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/09/2022] [Accepted: 05/30/2022] [Indexed: 01/25/2023] Open
Abstract
Increased human life expectancy, due in part to improvements in infant and childhood survival, more active lifestyles, in combination with higher patient expectations for better health outcomes, is leading to an extensive change in the number, type and manner in which health conditions are treated. Over the next decades as the global population rapidly progresses toward a super-aging society, meeting the long-term quality of care needs is forecast to present a major healthcare challenge. The goal is to ensure longer periods of good health, a sustained sense of well-being, with extended periods of activity, social engagement, and productivity. To accomplish these goals, multifunctionalized interfaces are an indispensable component of next generation medical technologies. The development of more sophisticated materials and devices as well as an improved understanding of human disease is forecast to revolutionize the diagnosis and treatment of conditions ranging from osteoarthritis to Alzheimer's disease and will impact disease prevention. This review examines emerging cutting-edge bionic materials, devices and technologies developed to advance disease prevention, and medical care and treatment in our elderly population including developments in smart bandages, cochlear implants, and the increasing role of artificial intelligence and nanorobotics in medicine.
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Affiliation(s)
- Albert Manero
- Limbitless SolutionsUniversity of Central FloridaOrlandoFloridaUSA,Biionix ClusterUniversity of Central FloridaOrlandoFloridaUSA
| | - Kaitlyn E. Crawford
- Biionix ClusterUniversity of Central FloridaOrlandoFloridaUSA,Department of Materials Science and EngineeringUniversity of Central FloridaOrlandoFloridaUSA
| | | | - Neel Shah
- College of MedicineUniversity of Central FloridaOrlandoFloridaUSA
| | - Deep Gandhi
- College of MedicineUniversity of Central FloridaOrlandoFloridaUSA
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19
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Tie J, Mao Z, Zhang L, Zhong Y, Sui X, Xu H. Highly transparent, self-healing and adhesive wearable ionogel as strain and temperature sensor. Polym Chem 2022. [DOI: 10.1039/d2py00594h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A stable ionogel with good self-healing capability and adhesion, excellent stretchability (2017%), high durability (1000 cycles) and high transparency (92%) is fabricated and assembled into a strain and temperature sensor with high sensitivity.
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Affiliation(s)
- Jianfei Tie
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Zhiping Mao
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
- National Manufacturing Innovation Center of Advanced Dyeing and Finishing Technology, Taian City, Shandong Province, 271000, People's Republic of China
| | - Linping Zhang
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yi Zhong
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaofeng Sui
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
| | - Hong Xu
- Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, People's Republic of China
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