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Lee S, Liang X, Kim JS, Yokota T, Fukuda K, Someya T. Permeable Bioelectronics toward Biointegrated Systems. Chem Rev 2024; 124:6543-6591. [PMID: 38728658 DOI: 10.1021/acs.chemrev.3c00823] [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: 05/12/2024]
Abstract
Bioelectronics integrates electronics with biological organs, sustaining the natural functions of the organs. Organs dynamically interact with the external environment, managing internal equilibrium and responding to external stimuli. These interactions are crucial for maintaining homeostasis. Additionally, biological organs possess a soft and stretchable nature; encountering objects with differing properties can disrupt their function. Therefore, when electronic devices come into contact with biological objects, the permeability of these devices, enabling interactions and substance exchanges with the external environment, and the mechanical compliance are crucial for maintaining the inherent functionality of biological organs. This review discusses recent advancements in soft and permeable bioelectronics, emphasizing materials, structures, and a wide range of applications. The review also addresses current challenges and potential solutions, providing insights into the integration of electronics with biological organs.
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Affiliation(s)
- Sunghoon Lee
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Xiaoping Liang
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Joo Sung Kim
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoyuki Yokota
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory & Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Oh M, Seo H, Choi J, Noh JH, Kim J, Jeon J, Choi C. Transition of Carbon Nanotube Sheets from Hydrophobicity to Hydrophilicity by Facile Electrochemical Wetting. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2834. [PMID: 37947680 PMCID: PMC10650619 DOI: 10.3390/nano13212834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/25/2023] [Accepted: 10/25/2023] [Indexed: 11/12/2023]
Abstract
The present study delves into the transformative effects of electrochemical oxidation on the hydrophobic-to-hydrophilic transition of carbon nanotube (CNT) sheets. The paper elucidates the inherent advantages of CNT sheets, such as high electrical conductivity and mechanical strength, and contrasts them with the limitations posed by their hydrophobic nature. A comprehensive investigation is conducted to demonstrate the efficacy of electrochemical oxidation treatment in modifying the surface properties of CNT sheets, thereby making them hydrophilic. The study reveals that the treatment not only is cost-effective and time-efficient compared to traditional plasma treatment methods but also results in a significant decrease in water contact angle. Mechanistic insights into the hydrophilic transition are provided, emphasizing the role of oxygen-containing functional groups introduced during the electrochemical oxidation process.
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Affiliation(s)
- Myoungeun Oh
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Hyunji Seo
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
| | - Jimin Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
| | - Jun Ho Noh
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Juwan Kim
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Joonhyeon Jeon
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
- Division of Electronics & Electronical Engineering, Dongguk University–Seoul, 30 Pildong-ro 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Changsoon Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (M.O.); (H.S.); (J.C.); (J.H.N.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
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Noh JH, Choi J, Seo H, Kim J, Choi C. Electrochemically Oxidized Carbon Nanotube Sheets for High-Performance and Flexible-Film Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2814. [PMID: 37887964 PMCID: PMC10609474 DOI: 10.3390/nano13202814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
The development of flexible, high-performance supercapacitors has been a focal point in energy storage research. While carbon nanotube (CNT) sheets offer promising mechanical and electrical properties, their low electrical double-layer capacitance significantly limits their practicability. Herein, we introduce a novel approach to address this challenge via the electrochemical oxidation treatment of CNT sheets stacked on a polyethylene terephthalate substrate. This introduces oxygen-containing functional groups onto the CNT surface, thereby dramatically enhancing the pseudocapacitive effect and improving ion adsorption. Consequently, using the material in a two-electrode system increased the capacitance by 54 times compared to pristine CNT. The results of electrochemical performance characterization, including cyclic voltammograms, galvanostatic charge/discharge curves, and capacitance retention testing data, confirm the efficacy of the electrochemical oxidation approach. Furthermore, the mechanical flexibility of the electrochemically wetted CNT sheets was validated through resistance and discharge retention testing under repetitive bending (98% capacitance retention after 1000 bending cycles). The results demonstrate that electrochemically wetted CNT sheets retain their intrinsic mechanical and electrical properties while significantly enhancing the electrochemical performance (0.59 mF/cm2 or 97.8 F/g). This work represents a significant advancement in the development of flexible, high-performance supercapacitors with potential applicability to wearable electronics, flexible displays, and next-generation energy storage solutions.
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Affiliation(s)
- Jun Ho Noh
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (J.H.N.); (J.C.); (H.S.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Jimin Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (J.H.N.); (J.C.); (H.S.); (J.K.)
| | - Hyunji Seo
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (J.H.N.); (J.C.); (H.S.); (J.K.)
| | - Juwan Kim
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (J.H.N.); (J.C.); (H.S.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Changsoon Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (J.H.N.); (J.C.); (H.S.); (J.K.)
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
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Han D, Kim M, Lee S, Choi C. A Review of Yarn-Based One-Dimensional Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2581. [PMID: 37764610 PMCID: PMC10536191 DOI: 10.3390/nano13182581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
Energy storage in a one-dimensional format is increasingly vital for the functionality of wearable technologies and is garnering attention from various sectors, such as smart apparel, the Internet of Things, e-vehicles, and robotics. Yarn-based supercapacitors are a particularly compelling solution for wearable energy reserves owing to their high power densities and adaptability to the human form. Furthermore, these supercapacitors can be seamlessly integrated into textile fabrics for practical utility across various types of clothing. The present review highlights the most recent innovations and research directions related to yarn-based supercapacitors. Initially, we explore different types of electrodes and active materials, ranging from carbon-based nanomaterials to metal oxides and conductive polymers, that are being used to optimize electrochemical capacitance. Subsequently, we survey different methodologies for loading these active materials onto yarn electrodes and summarize innovations in stretchable yarn designs, such as coiling and buckling. Finally, we outline a few pressing research challenges and future research directions in this field.
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Affiliation(s)
| | | | | | - Changsoon Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea; (D.H.); (M.K.); (S.L.)
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Hu X, Bao X, Zhang M, Fang S, Liu K, Wang J, Liu R, Kim SH, Baughman RH, Ding J. Recent Advances in Carbon Nanotube-Based Energy Harvesting Technologies. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2303035. [PMID: 37209369 DOI: 10.1002/adma.202303035] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/14/2023] [Indexed: 05/22/2023]
Abstract
There has been enormous interest in technologies that generate electricity from ambient energy such as solar, thermal, and mechanical energy, due to their potential for providing sustainable solutions to the energy crisis. One driving force behind the search for new energy-harvesting technologies is the desire to power sensor networks and portable devices without batteries, such as self-powered wearable electronics, human health monitoring systems, and implantable wireless sensors. Various energy harvesting technologies have been demonstrated in recent years. Among them, electrochemical, hydroelectric, triboelectric, piezoelectric, and thermoelectric nanogenerators have been extensively studied because of their special physical properties, ease of application, and sometimes high obtainable efficiency. Multifunctional carbon nanotubes (CNTs) have attracted much interest in energy harvesting because of their exceptionally high gravimetric power outputs and recently obtained high energy conversion efficiencies. Further development of this field, however, still requires an in-depth understanding of harvesting mechanisms and boosting of the electrical outputs for wider applications. Here, various CNT-based energy harvesting technologies are comprehensively reviewed, focusing on working principles, typical examples, and future improvements. The last section discusses the existing challenges and future directions of CNT-based energy harvesters.
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Affiliation(s)
- Xinghao Hu
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Xianfu Bao
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Mengmeng Zhang
- Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Shaoli Fang
- Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Kangyu Liu
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Jian Wang
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Runmin Liu
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Shi Hyeong Kim
- Department of Advanced Textile R&D, Korea Institute of Industrial Technology, Ansan-si, Gyeonggi-do, 15588, Republic of Korea
| | - Ray H Baughman
- Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, 75080, USA
| | - Jianning Ding
- Institute of Intelligent Flexible Mechatronics & School of Mechanical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
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Leng X, Mei G, Zhang G, Liu Z, Zhou X. Tethering of twisted-fiber artificial muscles. Chem Soc Rev 2023; 52:2377-2390. [PMID: 36919405 DOI: 10.1039/d2cs00489e] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Twisted-fiber artificial muscles, a new type of soft actuator, exhibit significant potential for use in applications related to lightweight smart devices and soft robotics. Fiber twisting generates internal torque and a spiral architecture, exhibiting rotation, contraction, or elongation as a result of fiber volume change. Untethering a twisted fiber often results in fiber untwisting and loss of stored torque energy. Preserving the torque in twisted fibers during actuation is necessary to realize a reversible and stable artificial muscle performance; this is a key issue that has not yet been systematically discussed and reviewed. This review summarizes the mechanisms for preserving the torque within twisted fibers and the potential applications of such systems. The potential challenges and future directions of research related to twisted-fiber artificial muscles are also discussed.
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Affiliation(s)
- Xueqi Leng
- Department of Science, China Pharmaceutical University, Nanjing 211198, China. .,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Smart Sensing Interdisciplinary Science Center, College of Chemistry, Nankai University, Tianjin 300350, China.
| | - Guangkai Mei
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Smart Sensing Interdisciplinary Science Center, College of Chemistry, Nankai University, Tianjin 300350, China.
| | - Guanghao Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Smart Sensing Interdisciplinary Science Center, College of Chemistry, Nankai University, Tianjin 300350, China.
| | - Zunfeng Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Smart Sensing Interdisciplinary Science Center, College of Chemistry, Nankai University, Tianjin 300350, China.
| | - Xiang Zhou
- Department of Science, China Pharmaceutical University, Nanjing 211198, China. .,State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Smart Sensing Interdisciplinary Science Center, College of Chemistry, Nankai University, Tianjin 300350, China.
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7
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Choi JH, Noh JH, Choi C. Highly Elastically Deformable Coiled CNT/Polymer Fibers for Wearable Strain Sensors and Stretchable Supercapacitors. SENSORS (BASEL, SWITZERLAND) 2023; 23:2359. [PMID: 36850957 PMCID: PMC9964788 DOI: 10.3390/s23042359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/31/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Stretchable yarn/fiber electronics with conductive features are optimal components for different wearable devices. This paper presents the construction of coil structure-based carbon nanotube (CNT)/polymer fibers with adjustable piezoresistivity. The composite unit fiber is prepared by wrapping a conductive carbon CNT sheath onto an elastic spandex core. Owing to the helical coil structure, the resultant CNT/polymer composite fibers are highly stretchable (up to approximately 300%) without a noticeable electrical breakdown. More specifically, based on the difference in the coil index (which is the ratio of the coil diameter to the diameter of the fiber within the coil) according to the polymeric core fiber (spandex or nylon), the composite fiber can be used for two different applications (i.e., as strain sensors or supercapacitors), which are presented in this paper. The coiled CNT/spandex composite fiber sensor responds sensitively to tensile strain. The coiled CNT/nylon composite fiber can be employed as an elastic supercapacitor with excellent capacitance retention at 300% strain.
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Affiliation(s)
- Jin Hyeong Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Jun Ho Noh
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
- Department of Advanced Battery Convergence Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
| | - Changsoon Choi
- Department of Energy and Materials Engineering, Dongguk University, 30 Pildong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
- Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University, 30 Pil-dong-ro, 1-gil, Jung-gu, Seoul 04620, Republic of Korea
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Li L, Sun T, Lu S, Chen Z, Xu S, Jian M, Zhang J. Graphene Interlocking Carbon Nanotubes for High-Strength and High-Conductivity Fibers. ACS APPLIED MATERIALS & INTERFACES 2023; 15:5701-5708. [PMID: 36661854 DOI: 10.1021/acsami.2c21518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Carbon nanotubes (CNTs) are promising building blocks for the fabrication of novel fibers with structural and functional properties. However, the mechanical and electrical performances of carbon nanotube fibers (CNTFs) are far lower than the intrinsic properties of individual CNTs. Exploring methods for the controllable assembly and continuous preparation of high-performance CNTFs is still challenging. Herein, a graphene/chlorosulfonic acid-assisted wet-stretching method is developed to produce highly densified and well-aligned graphene/carbon nanotube fibers (G/CNTFs) with excellent mechanical and electrical performances. Graphene with small size and high quality can bridge the adjacent CNTs to avoid the interfacial slippage under deformation, which facilitates the formation of a robust architecture with abundant conductive pathways. Their ordered structure and enhanced interfacial interactions endow the fibers with both high strength (4.7 GPa) and high electrical conductivity (more than 2 × 106 S/m). G/CNTF-based lightweight wires show good flexibility and knittability, and the high-performance fiber heaters exhibit ultrafast electrothermal response over 1000 °C/s and a low operation voltage of 3 V. This method paves the way for optimizing the microstructures and producing high-strength and high-conductivity CNTFs, which are promising candidates for the high-value fiber-based applications.
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Affiliation(s)
- Lijun Li
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
| | - Tongzhao Sun
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
- State Key Laboratory of High-Efficiency Coal Utilization and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Shichao Lu
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
| | - Zhuo Chen
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Shichen Xu
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Muqiang Jian
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
| | - Jin Zhang
- Beijing Graphene Institute (BGI), Beijing 100095, P. R. China
- Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
- School of Materials Science and Engineering, Peking University, Beijing 100871, P. R. China
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Dong L, Ren M, Wang Y, Wang G, Zhang S, Wei X, He J, Cui B, Zhao Y, Xu P, Wang X, Di J, Li Q. Artificial neuromuscular fibers by multilayered coaxial integration with dynamic adaption. SCIENCE ADVANCES 2022; 8:eabq7703. [PMID: 36383669 PMCID: PMC9668289 DOI: 10.1126/sciadv.abq7703] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Integrating sense in a thin artificial muscle fiber for environmental adaption and actuation path tracing, as a snail tentacle does, is highly needed but still challenging because of the interfacing mismatch between the fiber's actuation and sensing components. Here, we report an artificial neuromuscular fiber by wrapping a carbon nanotube (CNT) fiber core in sequence with an elastomer layer, a nanofiber network, and an MXene/CNT thin sheath, achieving the ingenious sense-judge-act intelligent system in an elastic fiber. The CNT/elastomer components provide actuation, and the sheath enables touch/stretch perception and hysteresis-free cyclic actuation tracing due to its strain-dependent resistance. As a whole, the coaxial structure builds a dielectric capacitor that enables sensitive touchless perception. The key to seamless integration is to use a nanofiber interface that allows the sensing layer to adaptively trace but not restrict actuation. This work provides promising solutions for closed-loop control for future intelligent soft robots.
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Affiliation(s)
- Lizhong Dong
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Ming Ren
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yulian Wang
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Guanghua Wang
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Shiqin Zhang
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Xulin Wei
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jianfeng He
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Bo Cui
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yueran Zhao
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Panpan Xu
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Xiaona Wang
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jiangtao Di
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang 330200, China
| | - Qingwen Li
- School of Nano-Technology and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- Advanced Materials Division, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang 330200, China
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10
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Hu X, Bao X, Wang J, Zhou X, Hu H, Wang L, Rajput S, Zhang Z, Yuan N, Cheng G, Ding J. Enhanced energy harvester performance by a tension annealed carbon nanotube yarn at extreme temperatures. NANOSCALE 2022; 14:16185-16192. [PMID: 36278850 DOI: 10.1039/d2nr05303a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Carbon nanotube (CNT) yarns generate electrical energy when they were stretched in an electrolyte, and they have been exploited for diverse applications such as self-powered sensors and human health monitoring systems. Here we improved the capacitance change and harvester performance of a coiled CNT yarn by using an incandescent tension annealing process (ITAP). When undergoing stretching cycles at 1 Hz, a coiled ITAP yarn can produce 2.5 times peak electrical power and 1.6 times output voltage than that of a neat CNT yarn. Electrochemical analysis shows that the capacitance of the ITAP yarn decreased by 20.4% when it was stretched to 30% strain. Microstructure results demonstrate that the large capacitance change may result from the densified electrochemical surface by the ITAP. Moreover, the potential of the zero charge (PZC) of ITAP yarns was shifted to a more negative value than that of the neat CNT yarn, which means that more charges were injected into the ITAP yarn once it was immersed in an electrolyte. Thus, the large capacitance change and initial injected charge are two main reasons for enhancing the harvester performance of the ITAP yarn. In addition, by annealing a twisted CNT yarn before it was coiled, we further increased the output peak power density to 170 W kg-1 at a strain of 55%.
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Affiliation(s)
- Xinghao Hu
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Xianfu Bao
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Jian Wang
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Xiaoshuang Zhou
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Hongwei Hu
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Luhua Wang
- Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Shailendra Rajput
- Department of Physics, University Centre for Research & Development, Chandigarh University, Mohali 140431, India
| | - Zhongqiang Zhang
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Ningyi Yuan
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Guanggui Cheng
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
| | - Jianning Ding
- Institute of Intelligent Flexible Mechatronics, Jiangsu University, Zhenjiang, 212013, PR China.
- Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
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Sim HJ, Kim J, Choi JH, Oh M, Choi C. Stretchy Electrochemical Harvesters for Binarized Self-Powered Strain Gauge-Based Static Motion Sensors. SENSORS (BASEL, SWITZERLAND) 2022; 22:4542. [PMID: 35746323 PMCID: PMC9231270 DOI: 10.3390/s22124542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
The human monitoring system has motivated the search for new technology, leading to the development of a self-powered strain sensor. We report on the stretchable and soft stretchy electrochemical harvester (SECH) bilayer for a binarized self-powered strain gauge in dynamic and static motion. The active surface area participating in the electrochemical reaction was enhanced after stretching the SECH in the electrolyte, leading to an increase in the electrochemical double-layer capacitance. A change in the capacitance induced a change in the electrical potential of the bilayer, generating electrical energy. The SECH overcomes several challenges of the previous mechano-electrochemical harvester: The harvester had high elasticity (50%), which satisfied the required strain during human motion. The harvester was highly soft (modulus of 5.8 MPa), 103 times lower than that of the previous harvester. The SECH can be applied to a self-powered strain gauge, capable of measuring stationary deformation and low-speed motion. The SECH created a system to examine the configuration of the human body, as demonstrated by the human monitoring sensor from five independent SECH assembled on the hand. Furthermore, the sensing information was simplified through the binarized signal. It can be used to assess the hand configuration for hand signals and sign language.
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Song Y, Di J, Jia Y, Yong Z, Xu J. Temperature-dependent resistance of carbon nanotube fibers. NANOTECHNOLOGY 2022; 33:235704. [PMID: 35235915 DOI: 10.1088/1361-6528/ac59e4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
Carbon nanotube fibers are highly recommended in the field of temperature sensor application owing to their excellent electrical conductivity and thermal conductivity. Here, this work demonstrated the rapid thermal response behaviour of CNT fibers fabricated by floating catalyst CVD method, which was measured by anin situtechnique based on the CNT film electric heater with excellent electrothermal response properties. The temperature dependences of resistance and structure were both explored. Experimental investigation indicates that the reduction in the inter-CNT interspace in the fibers caused by thermally driven actuation was dominantly responsible for the decrease of the fibers resistance during the heating process. Especially, the heated fibers showed 7.2% decrease in electrical resistance at the applied square-wave voltage of 8 V, and good temperature sensitivity (-0.15% °C-1). The as-prepared CNT fibers also featured a rapid and reversible electrical resistance response behaviour when exposed to external heating stimulation. Additionally, with the increment of temperature and twist-degree, the generated contraction actuation increased, which endowed the CNT fibers with more decrease in electrical resistance. These observations further suggested that the temperature-dependent conduction behavior of the CNT fibers with a high reversibility and repeatability was strongly correlated with their structure response to heat stimulation. As a consequence, the temperature-conduction behavior described here may be applied in other CNT-structured fibers and facilitated the improvement in their temperature-sensing applications.
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Affiliation(s)
- Yanhui Song
- COMAC Beijing Aircraft Technology Research Institute, Beijing Key Laboratory of Civil Aircraft Structures and Composite Material, Beijing 102211, People's Republic of China
| | - Jiangtao Di
- Key Lab of Nanodevices and Applications and Division of Advanced Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Yinlei Jia
- COMAC Beijing Aircraft Technology Research Institute, Beijing Key Laboratory of Civil Aircraft Structures and Composite Material, Beijing 102211, People's Republic of China
| | - Zhengzhong Yong
- Key Lab of Nanodevices and Applications and Division of Advanced Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Jifeng Xu
- COMAC Beijing Aircraft Technology Research Institute, Beijing Key Laboratory of Civil Aircraft Structures and Composite Material, Beijing 102211, People's Republic of China
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