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Gao X, Yuan L, Xue C, Zhang X, Meng X, Li X. Bubbles-Induced Porous Structure-Based Flexible Piezoresistive Sensors for Speech Recognition. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9532-9543. [PMID: 38345942 DOI: 10.1021/acsami.3c18233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Flexible piezoresistive sensors with a porous structure that are used in the field of speech recognition are seldom characterized by both high sensitivity and ease of preparation. In this study, a piezoresistive sensor with a porous structure that is both highly sensitive and can be prepared by using a simple method is proposed for speech recognition. The preparation process utilizes the interaction of bubbles generated by ethanol evaporation and active agents with polydimethylsiloxane to produce a porous flexible substrate. This preparation process requires neither templates nor harsh experimental conditions such as a low temperature and a low pressure. Furthermore, the prepared piezoresistive sensor has excellent properties, such as a high sensitivity (27.6 kPa-1), a satisfactory response time (800 μs), and a good stability (10,000 cycles). When used for speech recognition, more than 1500 vocalizations and silent speech signals obtained from subjects saying numbers from "0" to "9" were collected by the sensor for training a convolutional neural network model. The average accuracy of the recognition reached 94.8%. The simple preparation process and the excellent performance of the prepared flexible piezoresistive sensor endow it with a wide application prospect in the field of speech recognition.
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Affiliation(s)
- Xiaoguang Gao
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Lin Yuan
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Chengzhen Xue
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiaoliang Zhang
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xuejuan Meng
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Xiaochun Li
- Institute of Biomedical Precision Testing and Instrumentation, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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2
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Ai J, Wang Q, Li Z, Lu D, Liao S, Qiu Y, Xia X, Wei Q. Highly Stretchable and Fluorescent Visualizable Thermoplastic Polyurethane/Tetraphenylethylene Plied Yarn Strain Sensor with Heterogeneous and Cracked Structure for Human Health Monitoring. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1428-1438. [PMID: 38150614 DOI: 10.1021/acsami.3c14396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Smart wearable technology has been more and more widely used in monitoring and prewarning of human health and safety, while flexible yarn-based strain sensors have attracted extensive research interest due to their ability to withstand greater external strain and their significant application potential in real-time monitoring of human motion and health signals. Although several strain sensors based on yarn structures have been reported, it remains challenging to strike a balance between high sensitivity and wide strain ranges. At the same time, visual signal sensing is expected to be used in strain sensors thanks to its intuitiveness. In this work, thermoplastic polyurethane (TPU) and tetraphenylethylene (TPE) were wet-spun to fabricate flexible fluorescent fibers used as the substrate of the sensor, followed by the drop addition of polydimethylsiloxane (PDMS) beads and curing to produce a heterogeneous structure, which were further twisted into a plied yarn. Finally, a visualizable flexible yarn strain sensor based on solidified liquid beads and crack structure was obtained by loading polydopamine (PDA) and polypyrrole (PPy) in situ. The sensor exhibited high sensitivity (the GF value was 58.9 at the strain range of 143-184%), a wide working strain range (0-184%), a low monitoring limit (<0.1%), a fast response (58.82 ms), reliable responses at different frequencies, and excellent cycle durability (over 2000 cycles). At the same time, the yarn strain sensor also had excellent photothermal characteristics and a fluorescence crack visualization effect. These attractive advantages enabled yarn strain sensors to accurately monitor various human activities, showing great application potential in health monitoring, personalized medical diagnosis, and other aspects.
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Affiliation(s)
- Jingwen Ai
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China
| | - Qingqing Wang
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China
- Jiangxi Centre for Modern Apparel Engineering and Technology, Jiangxi Institute of Fashion Technology, Nanchang 330201, P. R. China
| | - Zhuquan Li
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China
| | - Dongxing Lu
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China
| | - Shiqin Liao
- Jiangxi Centre for Modern Apparel Engineering and Technology, Jiangxi Institute of Fashion Technology, Nanchang 330201, P. R. China
| | - Yuyu Qiu
- Wuxi School of Medicine, Jiangnan University, Wuxi 214122, P. R. China
| | - Xin Xia
- College of Textile and Clothing, Xinjiang University, Urumqi 830046, P. R. China
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, P. R. China
- Jiangxi Centre for Modern Apparel Engineering and Technology, Jiangxi Institute of Fashion Technology, Nanchang 330201, P. R. China
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Zhou X, Zang H, Guan Y, Li S, Liu M. Superhydrophobic Flexible Strain Sensors Constructed Using Nanomaterials: Their Fabrications and Sustainable Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2639. [PMID: 37836280 PMCID: PMC10574333 DOI: 10.3390/nano13192639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023]
Abstract
Superhydrophobic flexible strain sensors, which combine superhydrophobic coatings with highly sensitive flexible sensors, significantly enhance sensor performance and expand applications in human motion monitoring. Superhydrophobic coatings provide water repellency, surface self-cleaning, anti-corrosion, and anti-fouling properties for the sensors. Additionally, they enhance equipment durability. At present, many studies on superhydrophobic flexible sensors are still in the early research stage; the wear resistance and stability of sensors are far from reaching the level of industrial application. This paper discusses fundamental theories such as the wetting mechanism, tunneling effect, and percolation theory of superhydrophobic flexible sensors. Additionally, it reviews commonly used construction materials and principles of these sensors. This paper discusses the common preparation methods for superhydrophobic flexible sensors and summarizes the advantages and disadvantages of each method to identify the most suitable approach. Additionally, this paper summarizes the wide-ranging applications of the superhydrophobic flexible sensor in medical health, human motion monitoring, anti-electromagnetic interference, and de-icing/anti-icing, offering insights into these fields.
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Affiliation(s)
- Xiaodong Zhou
- School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China; (X.Z.); (H.Z.)
| | - Hongxin Zang
- School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China; (X.Z.); (H.Z.)
| | - Yong Guan
- Shandong Inov Polyurethane Co., Ltd., Zibo 255000, China
| | - Shuangjian Li
- National Engineering Laboratory of Modern Materials Surface Engineering Technology, Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510651, China
| | - Mingming Liu
- School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China; (X.Z.); (H.Z.)
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Yu T, Tao Y, Wu Y, Zhang D, Yang J, Ge G. Heterogeneous Multi-Material Flexible Piezoresistive Sensor with High Sensitivity and Wide Measurement Range. MICROMACHINES 2023; 14:716. [PMID: 37420949 DOI: 10.3390/mi14040716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 07/09/2023]
Abstract
Flexible piezoresistive sensors (FPSs) have the advantages of compact structure, convenient signal acquisition and fast dynamic response; they are widely used in motion detection, wearable electronic devices and electronic skins. FPSs accomplish the measurement of stresses through piezoresistive material (PM). However, FPSs based on a single PM cannot achieve high sensitivity and wide measurement range simultaneously. To solve this problem, a heterogeneous multi-material flexible piezoresistive sensor (HMFPS) with high sensitivity and a wide measurement range is proposed. The HMFPS consists of a graphene foam (GF), a PDMS layer and an interdigital electrode. Among them, the GF serves as a sensing layer, providing high sensitivity, and the PDMS serves as a supporting layer, providing a large measurement range. The influence and principle of the heterogeneous multi-material (HM) on the piezoresistivity were investigated by comparing the three HMFPS with different sizes. The HM proved to be an effective way to produce flexible sensors with high sensitivity and a wide measurement range. The HMFPS-10 has a sensitivity of 0.695 kPa-1, a measurement range of 0-14,122 kPa, fast response/recovery (83 ms and 166 ms) and excellent stability (2000 cycles). In addition, the potential application of the HMFPS-10 in human motion monitoring was demonstrated.
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Affiliation(s)
- Tingting Yu
- School of Aerospace Science and Technology, Xidian University, Xi'an 710071, China
| | - Yebo Tao
- Intelligent Manufacturing College, Jiaxing Vocational & Technical College, Jiaxing 314036, China
| | - Yali Wu
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Dongguang Zhang
- College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Jiayi Yang
- College of Computer Science and Technology, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Gang Ge
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
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Wu H, Liu G, Wei Y, Liao S. Directional freezing in natural rubber foams to construct reinforced networks. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Affiliation(s)
- Hao Wu
- Natural Rubber Cooperative Innovation Center of Hainan Province & Ministry of Education of PRC, School of Materials Science and Engineering Hainan University Haikou China
| | - Gui‐Xiang Liu
- Natural Rubber Cooperative Innovation Center of Hainan Province & Ministry of Education of PRC, School of Materials Science and Engineering Hainan University Haikou China
| | - Yan‐Chan Wei
- Natural Rubber Cooperative Innovation Center of Hainan Province & Ministry of Education of PRC, School of Materials Science and Engineering Hainan University Haikou China
| | - Shuangquan Liao
- Natural Rubber Cooperative Innovation Center of Hainan Province & Ministry of Education of PRC, School of Materials Science and Engineering Hainan University Haikou China
- Key Laboratory of Carbon Fiber and Functional Polymers Beijing University of Chemical Technology, Ministry of Education Beijing China
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Zeng W, Deng L, Yang G. Self-Healable Elastomeric Network with Dynamic Disulfide, Imine, and Hydrogen Bonds for Flexible Strain Sensor. Chemistry 2023; 29:e202203478. [PMID: 36694013 DOI: 10.1002/chem.202203478] [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: 11/21/2022] [Revised: 01/08/2023] [Accepted: 01/24/2023] [Indexed: 01/26/2023]
Abstract
Self-healable and stretchable elastomeric material is essential for the development of flexible electronics devices to ensure their stable performance. In this study, a strain sensor (PIH2 T1 -tri/CNT-3) composed of self-repairable crosslinked elastomer substrate (PIH2 T1 -tri, containing multiple reversible repairing sites such as disulfide, imine, and hydrogen bonds) and conductive layer (carbon nanotube, CNT) was prepared. The PIH2 T1 -tri elastomer had excellent self-healing ability (healing efficiency=91 %). It exhibited good mechanical integrity in terms of elongation at break (672 %), tensile strength (1.41 MPa). The Young's modulus (0.39 MPa) was close to that of human skin. The PIH2 T1 -tri/CNT-3 sensor also demonstrated an effective self-healing function for electrical conduction and sensing property. Meanwhile, it had high sensitivity (gauge factor (GF)=24.1), short response time (120 ms), and long-term durability (4000 cycles). This study offers a novel self-healable elastomer platform with carbon based conductive components to develop flexible strain sensors towards high performance soft electronics.
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Affiliation(s)
- Wangyi Zeng
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.,National Engineering Research Centre of, Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Longjiang Deng
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.,National Engineering Research Centre of, Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Guang Yang
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.,National Engineering Research Centre of, Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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Wu Y, Xu L, Xia C, Gan L. High performance flexible and antibacterial strain sensor based on silver‑carbon nanotubes coated cellulose/polyurethane nanofibrous membrane: Cellulose as reinforcing polymer blend and polydopamine as compatibilizer. Int J Biol Macromol 2022; 223:184-192. [PMID: 36343837 DOI: 10.1016/j.ijbiomac.2022.10.266] [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: 07/10/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
In this study, ethyl cellulose was used as the second-phase polymer blended with polyurethane to make nanofibrous membrane as antibacterial strain sensor. The results indicated that ethyl cellulose could regulate the morphology of polyurethane through strong hydrogen bonding, which observably enhanced the nanofiber uniformity of polyurethane. Furthermore, rigid cellulose also remarkably improved the mechanical strength and thermal stability of the nanofibrous membrane. After being coated with silver nanoparticles and carbon nanotubes assisted by polydopamine (PDA), the membrane with outstanding bacteria inhibition performance exhibited outstanding sensitivity toward external mechanical stretching, as well as real-time motion of human body parts. The conductive composite membrane possessed sensitive and regular resistance feedback to 100 cycles of varied human motions. The cellulose in the nanofiber structure ensured the shape recovery and longtime use stability of the membrane. This study proposed a novel thinking for the construction of high performance strain sensor by rational introduction of rigid polysaccharide into the polymer matrix.
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Affiliation(s)
- Ying Wu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, People's Republic of China
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, Jiangsu, People's Republic of China
| | - Changlei Xia
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, People's Republic of China
| | - Lu Gan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, People's Republic of China.
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8
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Sánchez-Romate XF, del Bosque A, Crespo A, Alonso R, Sánchez M, Ureña A. Fe 3O 4-Nanoparticle-Doped Epoxy Resin as a Detachable Adhesive by Electromagnetic Heating for GFRP Single-Lap Joints. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3913. [PMID: 36364689 PMCID: PMC9658479 DOI: 10.3390/nano12213913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 10/28/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
An adhesive based on a Fe3O4-nanoparticle (MNP)-doped epoxy resin was proposed for the development of detachable adhesive joints with GFRP substrates. The analysis of cryofractures showed that the increasing MNP content promotes a higher presence of larger aggregates and a lower sedimentation of nanoparticles due to the higher viscosity of the mixture. In this regard, the inclusion of expandable microspheres (MS) induces a more uniform dispersion of MNPs, reducing their sedimentation. The capability of the proposed adhesives for electromagnetic (EM) heating was also evaluated, with increases in temperature of around 100 °C at 750 A, enough to reach the Tg of the polymer required to facilitate the adhesive detachment, which is around 80 °C. Finally, the lap shear strength (LSS) of 14 and 20 wt.% MNP samples was evaluated in a single-lap shear joint with simultaneous EM heating. The LSS values were reduced by 60-80% at 750 A, thus promoting successful adhesive joint detachment under EM heating.
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Affiliation(s)
- Xoan F. Sánchez-Romate
- Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain
| | - Antonio del Bosque
- Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain
| | - Anabel Crespo
- AIMPLAS Instituto Tecnológico del Plástico, Carrer de Gustave Eiffel 4, 46980 Paterna, Spain
| | - Rafael Alonso
- AIMPLAS Instituto Tecnológico del Plástico, Carrer de Gustave Eiffel 4, 46980 Paterna, Spain
| | - María Sánchez
- Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain
| | - Alejandro Ureña
- Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, Calle Tulipán s/n, 28933 Móstoles, Spain
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9
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Superhydrophobic conductive rubber band with synergistic dual conductive layer for wide-range sensitive strain sensor. Sci Bull (Beijing) 2022; 67:1669-1678. [PMID: 36546046 DOI: 10.1016/j.scib.2022.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/03/2022] [Accepted: 07/11/2022] [Indexed: 01/07/2023]
Abstract
Wearable electronic devices have received increasing interests because of their excellent flexibility, stretchability, and human friendliness. As the core components, flexible strain sensors integrated with wide working range, high sensitivity, and environment stability, especially in moisture or corrosive environments, remain a huge challenge. Herein, synergistic carbon nanotubes (CNTs)/reduced graphene oxide (rGO) dual conductive layer decorated elastic rubber band (RB) was successfully developed and treated with hydrophobic fumed silica (Hf-SiO2) for preparing superhydrophobic strain sensor. As expected, stable entangled CNTs layer and ultrasensitive microcracked rGO layer endow the sensor with extremely low detection limit (0.1%), high sensitivity (gauge factor is 685.3 at 482% strain), wide workable strain range (0-482%), fast response/recovery (200 ms/200 ms) and favorable reliability and reproducibility over 1000 cycles. Besides, the constructed Hf-SiO2 coating also makes the sensor exhibit excellent superhydrophobicity, self-cleaning property, and corrosion-resistance. As a proof of concept, our prepared high-performance strain sensor can realize the full-range monitoring of human motions and physiological signals even in the water environment, including pulse, vocalization, joint bending, running, and gesture recognition. Interestingly, it can also be knitted into a tactile electronic textile for spatial pressure distribution measurement. Thus, this study provides a universal technique for the preparation of high-performance strain sensors with great potential applications in the field of next-generation intelligent wearable electronics.
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Yang P, Xiang S, Li R, Ruan H, Chen D, Zhou Z, Huang X, Liu Z. Highly Stretchable and Sensitive Flexible Strain Sensor Based on Fe NWs/Graphene/PEDOT:PSS with a Porous Structure. Int J Mol Sci 2022; 23:ijms23168895. [PMID: 36012160 PMCID: PMC9408232 DOI: 10.3390/ijms23168895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 11/19/2022] Open
Abstract
With the rapid development of wearable smart electronic products, high-performance wearable flexible strain sensors are urgently needed. In this paper, a flexible strain sensor device with Fe NWs/Graphene/PEDOT:PSS material added under a porous structure was designed and prepared. The effects of adding different sensing materials and a different number of dips with PEDOT:PSS on the device performance were investigated. The experiments show that the flexible strain sensor obtained by using Fe NWs, graphene, and PEDOT:PSS composite is dipped in polyurethane foam once and vacuum dried in turn with a local linearity of 98.8%, and the device was stable up to 3500 times at 80% strain. The high linearity and good stability are based on the three-dimensional network structure of polyurethane foam, combined with the excellent electrical conductivity of Fe NWs, the bridging and passivation effects of graphene, and the stabilization effect of PEDOT:PSS, which force the graphene-coated Fe NWs to adhere to the porous skeleton under the action of PEDOT:PSS to form a stable three-dimensional conductive network. Flexible strain sensor devices can be applied to smart robots and other fields and show broad application prospects in intelligent wearable devices.
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Affiliation(s)
- Ping’an Yang
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Sha Xiang
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Rui Li
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
- Correspondence: (R.L.); (H.R.)
| | - Haibo Ruan
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing 402160, China
- Correspondence: (R.L.); (H.R.)
| | - Dachao Chen
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Zhihao Zhou
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Xin Huang
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| | - Zhongbang Liu
- School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
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11
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Zhao W, Jiang Y, Yu W, Yu Z, Liu X. Wettability Controlled Surface for Energy Conversion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202906. [PMID: 35793418 DOI: 10.1002/smll.202202906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/13/2022] [Indexed: 06/15/2023]
Abstract
To achieve clean and high-efficiency utilization of renewable energy, functional surfaces with controllable and patternable wettability are becoming a fast-growing research focus. In this work, a laser scribing strategy to fabricate patterned graphene surfaces that are capable of energy conversion in different forms is demonstrated. Using the laser raster-scanning and vector-scanning modes, two distinct surface structures are constructed on polybenzoxazine substrate, yielding a superhydrophilic (LSHL) surface and superhydrophobic (LSHB) surface, respectively. Of particular note is that the unique hierarchical structure of LSHB surface has endowed it with quite a robust superwetting behaviors. Further profiting from the flexibility of the processing method, wettability patterns with spatially resolved LSHL and LSHB regions are designed, achieving the conversion of surface energy to liquid kinetic energy. This also offers a tractable approach to fabricate wettability-engineered devices that enable the directional, pumpless transport of water by capillary pressure gradient and the selective surface cooling via jet impingement. In addition, the LSHB surface demonstrates the high conversion of electric-to-thermal energy (222 °C cm2 W-1 ) and light-to-thermal energy (88%). Overall, the material system and processing method present a promising step forward to developing easy-fabricated graphene surfaces with spatially controlled wettability for efficient energy utilization and conversion.
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Affiliation(s)
- Weiwei Zhao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, 315201, P. R. China
| | - Ye Jiang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wenjie Yu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zeqi Yu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaoqing Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, 315201, P. R. China
- Key Laboratory of Marine Materials and Related Technologies, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, P. R. China
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12
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Li S, Xu R, Wang J, Yang Y, Fu Q, Pan C. Ultra-stretchable, super-hydrophobic and high-conductive composite for wearable strain sensors with high sensitivity. J Colloid Interface Sci 2022; 617:372-382. [DOI: 10.1016/j.jcis.2022.03.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/21/2022] [Accepted: 03/05/2022] [Indexed: 10/18/2022]
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13
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He J, Shi F, Liu Q, Pang Y, He D, Sun W, Peng L, Yang J, Qu M. Wearable superhydrophobic PPy/MXene pressure sensor based on cotton fabric with superior sensitivity for human detection and information transmission. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128676] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Liu L, Niu S, Zhang J, Mu Z, Li J, Li B, Meng X, Zhang C, Wang Y, Hou T, Han Z, Yang S, Ren L. Bioinspired, Omnidirectional, and Hypersensitive Flexible Strain Sensors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2200823. [PMID: 35231144 DOI: 10.1002/adma.202200823] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Sensors are widely used in various fields, among which flexible strain sensors that can sense minuscule mechanical signals and are easy to adapt to many irregular surfaces are attractive for structure health monitoring, early detection, and failure prevention in humans, machines, or buildings. In practical applications, subtle and abnormal vibrations generated from any direction are highly desired to detect and even orientate their directions initially to eliminate potential hazards. However, it is challenging for flexible strain sensors to achieve hypersensitivity and omnidirectionality simultaneously due to the restrictions of many materials with anisotropic mechanical/electrical properties and some micro/nanostructures they employed. Herein, it is revealed that the vision-degraded scorpion detects subtle vibrations spatially and omnidirectionally using a slit sensillum with fan-shaped grooves. A bioinspired flexible strain sensor consisting of curved microgrooves arranged around a central circle is devised, exhibiting an unprecedented gauge factor of over 18 000 and stability over 7000 cycles. It can sense and recognize vibrations of diverse input waveforms at different locations, bouncing behaviors of a free-falling bead, and human wrist pulses regardless of sensor installation angles. The geometric designs can be translated to other material systems for potential applications including human health monitoring and engineering failure detection.
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Affiliation(s)
- Linpeng Liu
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Shichao Niu
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Junqiu Zhang
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Zhengzhi Mu
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Jing Li
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Bo Li
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Xiancun Meng
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Changchao Zhang
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Yueqiao Wang
- College of Communication Engineering, Jilin University, Changchun, 130022, China
| | - Tao Hou
- College of Communication Engineering, Jilin University, Changchun, 130022, China
| | - Zhiwu Han
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
| | - Shu Yang
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Luquan Ren
- Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun, 130022, China
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15
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Keum K, Cho SS, Jo JW, Park SK, Kim YH. Mechanically robust textile-based strain and pressure multimodal sensors using metal nanowire/polymer conducting fibers. iScience 2022; 25:104032. [PMID: 35340437 PMCID: PMC8941206 DOI: 10.1016/j.isci.2022.104032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 02/15/2022] [Accepted: 03/02/2022] [Indexed: 01/20/2023] Open
Abstract
Recently, multifunctional textile-based sensory systems have attracted a lot of attention because of the growing demand for wearable electronics performing real-time monitoring of various body signals and movements. In particular, textile-based physical sensors often require multimodal sensing capabilities to accurately detect and identify multiple mixed stimuli simultaneously. Here, we demonstrate a textile-based strain/pressure multimodal sensor using high-k poly(vinylidene fluoride)-co-hexafluoropropylene ion-gel film and silver nanowire/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate-coated conducting fibers. The multimodal sensors exhibited reliable strain and pressure-sensing characteristics for strain ranges up to 25% and pressures up to 50 kPa, respectively, with a relatively high strain gauge factor (up to 2.74) and pressure sensitivity (0.32 kPa−1). More importantly, the textile-based multimodal sensor was able to detect the strain and pressure independently, allowing facile discrimination of strain and pressure. Using this approach, we demonstrated a textile-based multimodal sensor that incorporates one strain sensor and two pressure sensors detecting multiple weights simultaneously. Independent detection of strain and pressure using textile-based multimodal sensors A high-k flexible ion-gel film is utilized for capacitive pressure sensing Mechanically sewn conducting fibers are utilized for resistive strain sensing Multimodal sensor detects multiple objects with different weights
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Affiliation(s)
- Kyobin Keum
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sung Soo Cho
- School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jeong-Wan Jo
- Department of Electrical Engineering, University of Cambridge, CB2 1TN Cambridge, UK
| | - Sung Kyu Park
- School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
- Corresponding author
| | - Yong-Hoon Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Corresponding author
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16
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Liu Y, Sheng Z, Huang J, Liu W, Ding H, Peng J, Zhong B, Sun Y, Ouyang X, Cheng H, Wang X. Moisture-resistant MXene-sodium alginate sponges with sustained superhydrophobicity for monitoring human activities. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2022; 432:134370. [PMID: 35110969 PMCID: PMC8803272 DOI: 10.1016/j.cej.2021.134370] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Wearable mechanical sensors are easily influenced by moisture resulting in inaccuracy for monitoring human health and body motions. Though the superhydrophobic barrier has been extensively explored as passive water repel strategy on the sensor surface, the dense superhydrophobic surface not only limits the sensor working under large deformations but also inevitable degradation in high humidity or saturation water vapor environments. This work reports a superhydrophobic MXene-sodium alginate sponge (SMSS) pressure sensor with a low voltage Joule heating effect to provide sustain moisture-insensitive property for both sensing performance and superhydrophobicity by heating-driven water molecules away. Because of the positive temperature coefficient under pressure applied, the Joule heating can provides a stable temperature to the moisture-insensitivity property during the whole dynamic pressure cycled. Therefore, the pressure sensor with a simple spray-coating superhydrophobic coating on the outer layer demonstrates key capabilities even in extreme use scenarios with high humidity or water vapor and also provides stable and reliable bio-signal monitoring.
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Affiliation(s)
- Yangchengyi Liu
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Zhong Sheng
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Jielong Huang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Weiyi Liu
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Hongyan Ding
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Jinfeng Peng
- School of Mechanical Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Bowen Zhong
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Yuhui Sun
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xiaoping Ouyang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Huanyu Cheng
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xiufeng Wang
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan 411105, China
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17
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Wang M, Zhu J, Zi Y, Huang W. 3D MXene Sponge: Facile Synthesis, Excellent Hydrophobicity, and High Photothermal Efficiency for Waste Oil Collection and Purification. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47302-47312. [PMID: 34569235 DOI: 10.1021/acsami.1c15064] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Photothermally assisted superhydrophobic sponges play a vital role in the fields of waste oil collection, oil purification, and solar desalination. However, the widely reported superhydrophobic sponges with photothermal efficiency usually suffer from a post-/premodification process of harmful materials, high loading content of photothermal agents, and low photothermal efficiency. Herein, an MXene-based melamine sponge (MS) was facilely fabricated by hydrogen bonding interaction between the amino groups on the skeleton of the MS and the polar groups on the surface of the as-exfoliated 2D MXene Ti3C2Tx nanosheets. Interestingly, the as-fabricated MXene sponge exhibits excellent hydrophobicity and high photothermal efficiency under an extremely low loading of MXene Ti3C2Tx nanosheets (0.1 wt %). Moreover, the highly hydrophobic sponge also possesses a high oil absorption capacity as high as 176 times of its own weight and keeps stable under multiple absorption/desorption cycling tests. Surprisingly, the surface temperature of the MXene sponge can quickly reach 47 °C under illumination and has good reproducibility during multiple light on/off cycles. The excellent photothermal performance and large oil absorption capacity of the MXene sponge endow the highly hydrophobic sponge with fast solvent evaporation speed and high-purity waste oil collection (99.7 wt % dichloromethane) under illumination, which holds great promise for oil/water separation, leaked oil collection, and photo-driven waste oil collection and purification applications. It is envisioned that this work can open a new strategy for new designs of 3D multifunctional sponges for high-performance waste oil collection and purification.
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Affiliation(s)
- Mengke Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jun Zhu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - You Zi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Weichun Huang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
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18
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Hao T, Zhu Z, Yang H, He Z, Wang J. All-Day Anti-Icing/Deicing Film Based on Combined Photo-Electro-Thermal Conversion. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44948-44955. [PMID: 34499477 DOI: 10.1021/acsami.1c13252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Solar energy-facilitated icephobic films have emerged as clean and renewable materials, which can potentially solve energy loss problems during anti-icing/deicing applications. However, there is a significant challenge for all-day and continuous anti-icing/deicing applications under practical conditions with insufficient sunlight or no sunlight. In this work, a chemical oxidation polymerization method was used to prepare in situ self-wrinkling porous poly(dimethylsiloxane) (PDMS)/polypyrrole (PPy) (POP-P) films based on a facile sugar template method. The porous-structured film enhanced light absorption by elongating the optical path for multiple reflections, maintaining an outstanding broad-band solar light absorption (295-2500 nm) and an exceptional photo-thermal effect. The light-to-heat performance showed a temperature enhancement from room temperature to 89.1 °C within 400 s under 1 sun illumination (qi = 1.0 kW m-2). In addition, this membrane also exhibited an electro-thermal effect at different voltages due to the Joule effect, and the saturation temperature could reach 75.4 °C at a voltage of 32 V. As an anti-icing/deicing material, this POP-P surface remained ice-free (-25 °C) throughout alternating of day and night, under conditions of a solar intensity of 0.8 kW m-2 and a voltage of 25 V.
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Affiliation(s)
- Tongtong Hao
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhicheng Zhu
- Zhong Neng Power-Tech Development Co., Ltd., No.6-9, Fuchengmen North Street, Xicheng District, Beijing 100034, China
| | - Huige Yang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhiyuan He
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianjun Wang
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
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19
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Antimicrobial activity of sliver nanoparticles synthesized by the leaf extract of Cinnamomum camphora. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108050] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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20
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Wu H, Luo J, Huang X, Wang L, Guo Z, Liang J, Zhang S, Xue H, Gao J. Superhydrophobic, mechanically durable coatings for controllable light and magnetism driven actuators. J Colloid Interface Sci 2021; 603:282-290. [PMID: 34186405 DOI: 10.1016/j.jcis.2021.06.106] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 11/17/2022]
Abstract
Although some groundbreaking work has proved the feasibility of non-contact Marangoni propulsion generated by combination of the superhydrophobicity and photothermal effect, there are still challenges including the strong interfacial adhesion, multifunctional structural design and superior durability. In this paper, a simple two-step spraying method is used to prepare superhydrophobic and multi-functional fluorinated acidified carbon nanotubes (F-ACNTs)/Fe3O4 nanoparticles/polydimethylsiloxane (PDMS) coatings. The introduction of Fe3O4 nanoparticles and F-ACNTs not merely improve the surface roughness but also endow the coating with the outstanding magnetic property and photothermal conversion performance. The PDMS can reduce the surface energy and also improve the interfacial adhesion between the nanofillers and the substrate (the filter paper). The superhydrophobicity can be maintained when the material experiences abrasion, near-infrared (NIR) light irradiation and acid treatment, exhibiting outstanding durability. The highly stable superhydrophobic coating introduces a thin layer of air to decrease the drag force between the filter paper and the water surface, and can be used for controlled self-propelled light-driven motion and magnetic-driven motion. The movement can be manipulated by adjusting the direction of the incident NIR light and magnetic field. In particular, the superhydrophobic and superoleophilic coating based actuators can be easily driven to the oil-contaminated area on the water surface by using a magnet for high efficiency oil removal. This work provides a simple and universal strategy for developing intelligent and multi-responsive actuators possessing promising applications in various fields such as environmental protection, micro-robots and biomedicine.
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Affiliation(s)
- Haipeng Wu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Junchen Luo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Xuewu Huang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Ling Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Zheng Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Jiayi Liang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Shu Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Huaiguo Xue
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610065, PR China; Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, PR China.
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21
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Liu Z, Wan K, Zhu T, Zhu J, Xu J, Zhang C, Liu T. Superelastic, Fatigue-Resistant, and Flame-Retardant Spongy Conductor for Human Motion Detection against a Harsh High-Temperature Condition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7580-7591. [PMID: 33541076 DOI: 10.1021/acsami.0c20852] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The construction of wearable piezoresistive sensors with high elasticity, large gauge factor, and excellent durability in a harsh high-temperature environment is highly desired yet challenging. Here, a lightweight, superelastic, and fatigue-resistant spongy conductor was fabricated via a sponge-constrained network assembly, during which highly conductive graphene and flame-retardant montmorillonite were alternatively deposited on a three-dimensional melamine scaffold. The as-obtained spongy conductor exhibited a highly deformation-tolerant conductivity up to 80% strain and excellent fatigue resistance of 10,000 compressive cycles at 70% strain. As a result, the spongy conductor can readily work as a piezoresistive sensor and exhibited a high gauge factor value of ∼2.3 in a strain range of 60-80% and excellent durability under 60% strain for 10,000 cycles without sacrificing its piezoresistive performance. Additionally, the piezoresistive sensor showed great thermal stability up to 250 °C for more than 7 days and sufficient flame-retardant performance for at least 20 s. This lightweight, superelastic, and flame-retardant spongy conductor reveals tremendous potential in human motion detection against a harsh high-temperature environment.
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Affiliation(s)
- Zhichong Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China
| | - Kening Wan
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Tianyi Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China
| | - Jixin Zhu
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an 710072, P. R. China
| | - Jingsan Xu
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4001, Australia
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China
| | - Tianxi Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P. R. China
- 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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Ni Y, Huang J, Li S, Wang X, Liu L, Wang M, Chen Z, Li X, Lai Y. Underwater, Multifunctional Superhydrophobic Sensor for Human Motion Detection. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4740-4749. [PMID: 33370088 DOI: 10.1021/acsami.0c19704] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Superhydrophobic conductive materials have received a great amount of interest due to their wide applications in oil-water separation, electrically driven smart surface, electromagnetic shielding, and body motion detection. Herein, a highly conductive superhydrophobic cotton cloth is prepared by a facile method. A layer of polydopamine/reduced graphene oxide (PDA/rGO) was first coated on the cotton fabric, and then copper nanoparticles were in situ grown on the prepared surface. After further modification with stearic acid (STA), the wettability of the cotton surface changed from superhydrophilic to superhydrophobic (water contact angle (WCA) = 153°). The electrical conductivity of the PDA/rGO/Cu/STA cotton is as high as 6769 S·m-1, while the stearic acid effectively protects Cu NPs from oxidation. As a result, the superhydrophobic PDA/rGO/Cu/STA cotton has shown excellent electrical stability and can be used in detecting human motions in both ambient and underwater conditions. The sensor can recognize human motion from air into water and other underwater activities (e.g., underwater bending, stretching, and ultrasound). This multifunctional cotton device can be used as an ideal sensor for underwater intelligent devices and provides a basis for further research.
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Affiliation(s)
- Yimeng Ni
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Jianying Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Shuhui Li
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Xiaoqin Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Lexin Liu
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Mengyao Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Xiao Li
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Yuekun Lai
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
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23
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Zhou Y, Sun Z, Jiang L, Chen S, Ma J, Zhou F. Highly Conductive Silver Nanoparticle-Functionalized Aramid Fiber Paper for Electrical Heaters with Rapid Response and Chemical Stability. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yanfen Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Industrial Research Institute of Nonwovens and Technical Textiles, Qingdao 266071, P. R. China
| | - Zhenhua Sun
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
| | - Liang Jiang
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
| | - Shaojuan Chen
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Eco-Textile Collaborative Innovation Center, Qingdao University, Qingdao 266071, P. R. China
| | - Jianwei Ma
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Industrial Research Institute of Nonwovens and Technical Textiles, Qingdao 266071, P. R. China
| | - Fenglei Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Centre for Medical Image Computing, University College London, London WC1V 6LJ, U.K
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24
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Zhou B, Su M, Yang D, Han G, Feng Y, Wang B, Ma J, Ma J, Liu C, Shen C. Flexible MXene/Silver Nanowire-Based Transparent Conductive Film with Electromagnetic Interference Shielding and Electro-Photo-Thermal Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40859-40869. [PMID: 32803950 DOI: 10.1021/acsami.0c09020] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Transparent conductive film (TCF) is promising for optoelectronic instrument applications. However, designing a robust, stable, and flexible TCF that can shield electromagnetic waves and work in harsh conditions remains a challenge. Herein, a multifunctional and flexible TCF with effective electromagnetic interference shielding (EMI) performance and outstanding electro-photo-thermal effect is proposed by orderly coating Ti3C2Tx MXene and a silver nanowire (AgNW) hybrid conductive network using a simple and scalable solution-processed method. Typically, the air-plasma-treated polycarbonate (PC) film was sequentially spray-coated with MXene and AgNW to construct a highly conductive network, which was transferred and partly embedded into an ultrathin poly(vinyl alcohol) (PVA) film using spin coating coupled with hot pressing to enhance the interfacial adhesion. The peeled MXene/AgNW-PVA TCF exhibits an optimal optical and electrical performance of sheet resistance 18.3 Ω/sq and transmittance 52.3%. As a consequence, the TCF reveals an effective EMI shielding efficiency of 32 dB in X-band with strong interfacial adhesion and satisfactory flexibility. Moreover, the high electrical conductivity and localized surface plasmon resonance (LSPR) effect of hybrid conductive network endow the TCF with low-voltage-driven Joule heating performance and excellent photothermal effect, respectively, which can ensure the normal functioning under extreme cold condition. In view of the comprehensive performance, this work offers new solutions for next-generation transparent EMI shielding challenges.
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Affiliation(s)
- Bing Zhou
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Mengjie Su
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Daozheng Yang
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Gaojie Han
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Yuezhan Feng
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Bo Wang
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
| | - Jialu Ma
- National Key Laboratory of Human Factors Engineering, China Astronauts Research and Training Center, Beijing 100094, China
| | - Jianmin Ma
- Key Laboratory for Micro-/Nano-Optoelectronic Devices, Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410022, China
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
- National Key Laboratory of Human Factors Engineering, China Astronauts Research and Training Center, Beijing 100094, China
| | - Changyu Shen
- Key Laboratory of Materials Processing and Mold Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, Henan 450002, China
- State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
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