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Cheng Z, Zhang D, Luo X, Lai H, Liu Y, Jiang L. Superwetting Shape Memory Microstructure: Smart Wetting Control and Practical Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2001718. [PMID: 33058318 DOI: 10.1002/adma.202001718] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Smart control of wettability on superwetting surfaces has aroused much attention in the past few years. Compared with traditional strategies such as adjusting the surface chemistry, regulating the surface microstructure is more difficult, though it can bring lots of new functions. Recently, it was found that, based on the shape memory effect of a shape memory polymer, the surface microstructure can be controlled more easily and precisely. Here, recent developments in the smart control of wettability on superwetting shape memory microstructures and corresponding applications are summarized. The primary concern is the superhydrophobic surfaces that have demonstrated numerous attractive functions, including controllable droplet storage, transportation, bouncing, capture/release, and reprogrammable gradient wetting, under variation of the surface microstructure. Finally, some achievements in wetting control on other superwetting surfaces (such as superomniphobic surfaces and superslippery surfaces) and perspectives on future research directions are also discussed.
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Affiliation(s)
- Zhongjun Cheng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Dongjie Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Xin Luo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Hua Lai
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Yuyan Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, PR China
| | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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Abstract
A growing advocacy of healthy and quality life makes wearable electronics spring up. Triboelectric nanogenerator (TENG) has developed as an energy harvesting technology and as an advanced sensor technology in wearable electronics. The triboelectric sensor (TS) is sensitive to the mechanical motion and driven by the motion itself. Therefore, TS is capable of monitoring certain vital signs and kinds of movements of human body. Based on these monitoring, novel human-machine interfaces (HMIs) can be established. In this review, a comprehensive overview of some key progresses in this field over last 5 years are presented. Several main aspects of biomedical monitoring based on TSs are classified: pulse/cardiac/micro-motion, respiration/airflow/vibration, and pressure/tactile/body movement. The major types of HMIs taking these biomedical monitoring as basis are introduced accordingly: eye movement, voice/auditory, gesture/joint movement, and touch/tactile based HMIs. Finally, the current limitations and future trends are put forward for biomedical monitoring and HMIs based on TSs.
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53
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Dzhardimalieva GI, Yadav BC, Lifintseva TV, Uflyand IE. Polymer chemistry underpinning materials for triboelectric nanogenerators (TENGs): Recent trends. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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54
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55
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Diversiform sensors and sensing systems driven by triboelectric and piezoelectric nanogenerators. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213597] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wu S, Hu W, Ze Q, Sitti M, Zhao R. Multifunctional magnetic soft composites: a review. MULTIFUNCTIONAL MATERIALS 2020; 3:042003. [PMID: 33834121 PMCID: PMC7610551 DOI: 10.1088/2399-7532/abcb0c] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Magnetically responsive soft materials are soft composites where magnetic fillers are embedded into soft polymeric matrices. These active materials have attracted extensive research and industrial interest due to their ability to realize fast and programmable shape changes through remote and untethered control under the application of magnetic fields. They would have many high-impact potential applications in soft robotics/devices, metamaterials, and biomedical devices. With a broad range of functional magnetic fillers, polymeric matrices, and advanced fabrication techniques, the material properties can be programmed for integrated functions, including programmable shape morphing, dynamic shape deformation-based locomotion, object manipulation and assembly, remote heat generation, as well as reconfigurable electronics. In this review, an overview of state-of-the-art developments and future perspectives in the multifunctional magnetically responsive soft materials is presented.
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Affiliation(s)
- Shuai Wu
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, United States of America
| | - Wenqi Hu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Qiji Ze
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, United States of America
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Ruike Zhao
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210, United States of America
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57
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Xu J, Zou Y, Nashalian A, Chen J. Leverage Surface Chemistry for High-Performance Triboelectric Nanogenerators. Front Chem 2020; 8:577327. [PMID: 33330365 PMCID: PMC7717947 DOI: 10.3389/fchem.2020.577327] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 09/15/2020] [Indexed: 12/18/2022] Open
Abstract
Triboelectric Nanogenerators (TENGs) are a highly efficient approach for mechanical-to-electrical energy conversion based on the coupling effects of contact electrification and electrostatic induction. TENGs have been intensively applied as both sustainable power sources and self-powered active sensors with a collection of compelling features, including lightweight, low cost, flexible structures, extensive material selections, and high performances at low operating frequencies. The output performance of TENGs is largely determined by the surface triboelectric charges density. Thus, manipulating the surface chemical properties via appropriate modification methods is one of the most fundamental strategies to improve the output performances of TENGs. This article systematically reviews the recently reported chemical modification methods for building up high-performance TENGs from four aspects: functional groups modification, ion implantation and decoration, dielectric property engineering, and functional sublayers insertion. This review will highlight the contribution of surface chemistry to the field of triboelectric nanogenerators by assessing the problems that are in desperate need of solving and discussing the field's future directions.
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Affiliation(s)
- Jing Xu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Yongjiu Zou
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Ardo Nashalian
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States
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58
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Dzhardimalieva GI, Yadav BC, Kudaibergenov SE, Uflyand IE. Basic Approaches to the Design of Intrinsic Self-Healing Polymers for Triboelectric Nanogenerators. Polymers (Basel) 2020; 12:E2594. [PMID: 33158271 PMCID: PMC7694280 DOI: 10.3390/polym12112594] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022] Open
Abstract
Triboelectric nanogenerators (TENGs) as a revolutionary system for harvesting mechanical energy have demonstrated high vitality and great advantage, which open up great prospects for their application in various areas of the society of the future. The past few years have seen exponential growth in many new classes of self-healing polymers (SHPs) for TENGs. This review presents and evaluates the SHP range for TENGs, and also attempts to assess the impact of modern polymer chemistry on the development of advanced materials for TENGs. Among the most widely used SHPs for TENGs, the analysis of non-covalent (hydrogen bond, metal-ligand bond), covalent (imine bond, disulfide bond, borate bond) and multiple bond-based SHPs in TENGs has been performed. Particular attention is paid to the use of SHPs with shape memory as components of TENGs. Finally, the problems and prospects for the development of SHPs for TENGs are outlined.
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Affiliation(s)
- Gulzhian I. Dzhardimalieva
- Laboratory of Metallopolymers, The Institute of Problems of Chemical Physics RAS, 142432 Chernogolovka, Moscow Region, Russia;
- Moscow Aviation Institute (National Research University), 125993 Moscow, Russia
| | - Bal C. Yadav
- Nanomaterials and Sensors Research Laboratory, Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, India;
| | - Sarkyt E. Kudaibergenov
- Institute of Polymer Materials and Technology, Almaty 050019, Kazakhstan;
- Laboratory of Engineering Profile, Satbayev University, Almaty 050013, Kazakhstan
| | - Igor E. Uflyand
- Department of Chemistry, Southern Federal University, 344006 Rostov-on-Don, Russia
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59
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Thermo-responsive shape memory effect in isotactic propylene/1-butene copolymers. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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60
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Kuang X, Mu Q, Roach DJ, Qi HJ. Shape-programmable and healable materials and devices using thermo- and photo-responsive vitrimer. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/2399-7532/abbdc1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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61
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Wang P, Hu M, Wang H, Chen Z, Feng Y, Wang J, Ling W, Huang Y. The Evolution of Flexible Electronics: From Nature, Beyond Nature, and To Nature. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001116. [PMID: 33101851 PMCID: PMC7578875 DOI: 10.1002/advs.202001116] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/24/2020] [Indexed: 05/05/2023]
Abstract
The flourishing development of multifunctional flexible electronics cannot leave the beneficial role of nature, which provides continuous inspiration in their material, structural, and functional designs. During the evolution of flexible electronics, some originated from nature, some were even beyond nature, and others were implantable or biodegradable eventually to nature. Therefore, the relationship between flexible electronics and nature is undoubtedly vital since harmony between nature and technology evolution would promote the sustainable development. Herein, materials selection and functionality design for flexible electronics that are mostly inspired from nature are first introduced with certain functionality even beyond nature. Then, frontier advances on flexible electronics including the main individual components (i.e., energy (the power source) and the sensor (the electric load)) are presented from nature, beyond nature, and to nature with the aim of enlightening the harmonious relationship between the modern electronics technology and nature. Finally, critical issues in next-generation flexible electronics are discussed to provide possible solutions and new insights in prospective exploration directions.
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Affiliation(s)
- Panpan Wang
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Mengmeng Hu
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Hua Wang
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Zhe Chen
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Yuping Feng
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Jiaqi Wang
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Wei Ling
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
| | - Yan Huang
- State Key Laboratory of Advanced Welding and JoiningShenzhen518055China
- Flexible Printed Electronic Technology CenterShenzhen518055China
- School of Materials Science and EngineeringShenzhen518055China
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62
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Powering future body sensor network systems: A review of power sources. Biosens Bioelectron 2020; 166:112410. [DOI: 10.1016/j.bios.2020.112410] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/18/2022]
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63
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Kuang X, Roach DJ, Hamel CM, Yu K, Qi HJ. Materials, design, and fabrication of shape programmable polymers. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/2399-7532/aba1d9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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64
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Sun X, Guo R, Yuan B, Chen S, Wang H, Dou M, Liu J, He ZZ. Low-Temperature Triggered Shape Transformation of Liquid Metal Microdroplets. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38386-38396. [PMID: 32846493 DOI: 10.1021/acsami.0c10409] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Shape transformable materials that can respond to external environments have attracted widespread interest over the fields of soft robotics, flexible electronics, and tissue engineering. Among stimuli-responsive materials, liquid metals exhibit rather unique characteristics of versatile morphological changes upon diverse stimuli, including chemicals, electrical field, and mechanical force, etc. Herein, a superfast (few milliseconds), large-scaled (13.8% deformation increase), and fierce (cracks formation) transformation of liquid metal microdroplets (LMMs) with strong impulse expanded force due to liquid-solid phase transition in a dual fluid system composed of LMMs and aqueous solution is reported. When subject to low-temperature stimulus, LMM would transform from ellipsoidal shape to amorphous shape induced by thermal stress, driving the shape morphing. Furthermore, the phase changes of LMMs as well as the formation of surrounding ice crystals are proven to be responsible for this phenomenal behavior. The densification of ice crystals is demonstrated to play a significant role in the transformable behavior. In particular, these nonconductive LMMs in aqueous solutions are discovered to turn into conducive materials with an impedance change of about 105 times. The present discovery is of fundamental and practical significance, and would open new venues in fields such as fluid mechanics, thermal science, flexible electronics, biomedicine, and so forth.
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Affiliation(s)
- Xuyang Sun
- Beijing Key Laboratory of Cryo-Biomedical Engineering and CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Rui Guo
- Department of Biomedical Engineering, School of Medicine, Tsinghua University Beijing 100084, P. R. China
| | - Bo Yuan
- Department of Biomedical Engineering, School of Medicine, Tsinghua University Beijing 100084, P. R. China
| | - Sen Chen
- Beijing Key Laboratory of Cryo-Biomedical Engineering and CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Hongzhang Wang
- Department of Biomedical Engineering, School of Medicine, Tsinghua University Beijing 100084, P. R. China
| | - Mengjia Dou
- Beijing Key Laboratory of Cryo-Biomedical Engineering and CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jing Liu
- Beijing Key Laboratory of Cryo-Biomedical Engineering and CAS Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Department of Biomedical Engineering, School of Medicine, Tsinghua University Beijing 100084, P. R. China
| | - Zhi-Zhu He
- Department of Vehicle Engineering College of Engineering China Agricultural University Beijing 100083, P. R. China
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65
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Bi H, Jia X, Ye G, Ren Z, Yang H, Guo R, Xu M, Cai L, Huang Z. Three-Dimensional-Printed Shape Memory Biomass Composites for Thermal-Responsive Devices. 3D PRINTING AND ADDITIVE MANUFACTURING 2020; 7:170-180. [PMID: 36654926 PMCID: PMC9586233 DOI: 10.1089/3dp.2020.0003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this study, unique three-dimensional (3D)-printed shape memory biomass composites were prepared by the melt blending and extrusion of polyurethane, polycaprolactone (PCL), and wood flour (WF) with adjustable contents. The addition content of PCL was used to adjust the shape memory transition temperature and improve the shape fixing rate of composites. The crystallization, thermal, mechanical, and shape memory properties of different composites were investigated. The results of X-ray diffraction and differential scanning calorimetry tests showed that the crystallization peak and melting temperature of different composites were not obviously changed. As the PCL content increased, the tensile strength of the composites decreased first and then increased, and the elongation at break gradually decreased. Thermal response shape memory test results showed that, when the PCL content was 30 wt.%, the composites had high shape recovery rate and fixed rate (both ∼100%). In addition, carbon black (CB) was added as a photothermal conversion material to the composite with a preferred ratio to achieve the photothermal response shape memory performance. With the addition of CB, the thermal conductivity of composites was improved. Under the same conditions, the thicker the 3D-printed specimens, the longer the specimen shape recovery time; the greater the light intensity, the shorter the specimen shape recovery time. Compared with the composite without CB, the flower model printed with the composites containing CB had a better photothermal response shape memory performance.
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Affiliation(s)
- Hongjie Bi
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Xin Jia
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Gaoyuan Ye
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Zechun Ren
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Haiying Yang
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Rui Guo
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Min Xu
- Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China, College of Material Science and Engineering, Northeast Forestry University, Harbin, China
| | - Liping Cai
- College of Engineering, University of North Texas, Denton, Texas, USA
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, China
| | - Zhenhua Huang
- College of Engineering, University of North Texas, Denton, Texas, USA
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66
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Bi H, Ye G, Yang H, Sun H, Ren Z, Guo R, Xu M, Cai L, Huang Z. Near infrared-induced shape memory polymer composites with dopamine-modified multiwall carbon nanotubes via 3D-printing. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109920] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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67
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Luo N, Feng Y, Wang D, Zheng Y, Ye Q, Zhou F, Liu W. New Self-Healing Triboelectric Nanogenerator Based on Simultaneous Repair Friction Layer and Conductive Layer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30390-30398. [PMID: 32530268 DOI: 10.1021/acsami.0c07037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A new self-healing triboelectric nanogenerator (TENG) was fabricated by combining a temperature responsive polymer material of polycaprolactone (PCL) with flexible silver nanowires (Ag NWs), which could cope with the damages of TENGs in the long-term use of energy harvesting. Two different structured TENGs were designed to investigate their properties of self-recovery of the friction surfaces and conducting layers. When the top surface of the friction electrode is damaged, the healable PCL polymer will intenerate by heating and flow to the wound to realize the self-healing purpose. If the conductive layer at the bottom of the TENG electrode is also damaged, PCL will also drive the Ag NW network at the bottom of the electrode to move for healing during the heating process. This type of self-healing TENGs with a sandwich structure can exhibit a stable and high output performance with an output voltage of 800 V and a short-circuit current of 30 μA after several cutting-healing cycles, which can easily light up 372 commercial light-emitting diodes. This work proposes a simple and effective method to design a self-healing TENG, which has a widespread application prospect to prolong the life of TENGs for restoring the loss of output caused by rapid and repeated cutting.
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Affiliation(s)
- Ning Luo
- Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yange Feng
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Qingdao Center of Resource Chemistry and New Materials, Qingdao 266100, China
| | - Daoai Wang
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Youbin Zheng
- Qingdao Center of Resource Chemistry and New Materials, Qingdao 266100, China
| | - Qian Ye
- Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Feng Zhou
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Weimin Liu
- Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi'an 710072, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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68
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Bodkhe S, Ermanni P. 3D printing of multifunctional materials for sensing and actuation: Merging piezoelectricity with shape memory. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109738] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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69
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Peng X, Dong K, Ye C, Jiang Y, Zhai S, Cheng R, Liu D, Gao X, Wang J, Wang ZL. A breathable, biodegradable, antibacterial, and self-powered electronic skin based on all-nanofiber triboelectric nanogenerators. SCIENCE ADVANCES 2020; 6:eaba9624. [PMID: 32637619 PMCID: PMC7319766 DOI: 10.1126/sciadv.aba9624] [Citation(s) in RCA: 251] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/15/2020] [Indexed: 05/17/2023]
Abstract
Mimicking the comprehensive functions of human sensing via electronic skins (e-skins) is highly interesting for the development of human-machine interactions and artificial intelligences. Some e-skins with high sensitivity and stability were developed; however, little attention is paid to their comfortability, environmental friendliness, and antibacterial activity. Here, we report a breathable, biodegradable, and antibacterial e-skin based on all-nanofiber triboelectric nanogenerators, which is fabricated by sandwiching silver nanowire (Ag NW) between polylactic-co-glycolic acid (PLGA) and polyvinyl alcohol (PVA). With micro-to-nano hierarchical porous structure, the e-skin has high specific surface area for contact electrification and numerous capillary channels for thermal-moisture transfer. Through adjusting the concentration of Ag NW and the selection of PVA and PLGA, the antibacterial and biodegradable capability of e-skins can be tuned, respectively. Our e-skin can achieve real-time and self-powered monitoring of whole-body physiological signal and joint movement. This work provides a previously unexplored strategy for multifunctional e-skins with excellent practicability.
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Affiliation(s)
- Xiao Peng
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kai Dong
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Cuiying Ye
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yang Jiang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Siyuan Zhai
- Research Center for Eco-environmental Science, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Renwei Cheng
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Di Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiaoping Gao
- College of Light Industry and Textile, Inner Mongolia University of Technology, Hohhot, 010051, P. R. China
| | - Jie Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Corresponding author. (J.W.); (Z.L.W.)
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China
- College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Corresponding author. (J.W.); (Z.L.W.)
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Wang Y, Chen Z, Niu J, Shi Y, Zhao J, Ye J, Tian W. Electrically Responsive Shape Memory Composites Using Silver Plated Chopped Carbon Fiber. Front Chem 2020; 8:322. [PMID: 32457868 PMCID: PMC7227135 DOI: 10.3389/fchem.2020.00322] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 03/30/2020] [Indexed: 11/17/2022] Open
Abstract
High electrical and thermal conductivity are beneficial to the shape recovery performance of electroactive shape memory polymer composites. In this work, the chopped carbon fiber (CCF) was processed into silver plated chopped carbon fiber (Ag/CCF), and the Ag/CCF was filled into hydrogenated bisphenol A epoxy (H-EP) resin to fabricate the electro-induced shape memory polymer composites. The Ag/CCF/H-EP composites show good electrical and thermal conductivity compared to the CCF/H-EP composites. When the content of Ag/CCF reaches 1.8 wt%, the e Ag/CCF/H-EP composites reach the threshold of thermal conductivity, electrical conductivity and percolation. The thermal conductivity of H-EP composite with 5.4 wt% Ag/CCF is 2.33 W/(m·K), which is 2.6 times and 12 times of that of CCF/H-EP composite and H-EP matrix, respectively. When the content of Ag/CCF reaches 7.2 wt%, the volume resistivity of Ag/CCF/H-EP composites decrease from 1.69 × 1016 Ω·to 9.51 × 103 Ω cm, and surface resistivity from 6.91 × 1015 Ω to 6.19 × 102 Ω, respectively. And the Ag/CCF/H-EP composites show good mechanical properties and dynamic thermomechanical properties. When the content of Ag/CCF is more than 1.8 wt%, the Ag/CCF/H-EP composites exhibit excellent electroactive shape memory performance, and the shape recovery rate of the composites is more than 92%.
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Affiliation(s)
- Yongkun Wang
- Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an, China
| | - Zhenhong Chen
- College of Textile and Garment, Hebei University of Science and Technology, Shijiazhuang, China
| | - Jiahao Niu
- Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an, China
| | - Yang Shi
- Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an, China
| | - Jiangpeng Zhao
- Xi'an Research Institute of China Coal Technology, Engineering Group Corp, Xi'an, China
| | - Junjie Ye
- Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an, China
| | - Wenchao Tian
- Key Laboratory of Ministry of Education for Electronic Equipment Structure Design, Xidian University, Xi'an, China
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71
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Titanium-Doped P-Type WO 3 Thin Films for Liquefied Petroleum Gas Detection. NANOMATERIALS 2020; 10:nano10040727. [PMID: 32290395 PMCID: PMC7221523 DOI: 10.3390/nano10040727] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/21/2020] [Accepted: 04/08/2020] [Indexed: 12/19/2022]
Abstract
Gas sensors are an important part of smart homes in the era of the Internet of Things. In this work, we studied Ti-doped P-type WO3 thin films for liquefied petroleum gas (LPG) sensors. Ti-doped tungsten oxide films were deposited on glass substrates by direct current reactive magnetron sputtering from a W-Ti alloy target at room temperature. After annealing at 450 °C in N2 ambient for 60 min, p-type Ti-doped WO3 was achieved for the first time. The measurement of the room temperature Hall-effect shows that the film has a resistivity of 5.223 × 103 Ωcm, a hole concentration of 9.227 × 1012 cm−3, and mobility of 1.295 × 102 cm2V−1s−1. X-Ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses reveal that the substitution of W6+ with Ti4+ resulted in p-type conductance. The scanning electron microscope (SEM) images show that the films consist of densely packed nanoparticles. The transmittance of the p-type films is between 72% and 84% in the visible spectra and the optical bandgap is 3.28 eV. The resistance increased when the films were exposed to the reducing gas of liquefied petroleum gas, further confirming the p-type conduction of the films. The p-type films have a quick response and recovery behavior to LPG.
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Lim HR, Kim HS, Qazi R, Kwon YT, Jeong JW, Yeo WH. Advanced Soft Materials, Sensor Integrations, and Applications of Wearable Flexible Hybrid Electronics in Healthcare, Energy, and Environment. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1901924. [PMID: 31282063 DOI: 10.1002/adma.201901924] [Citation(s) in RCA: 274] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 04/18/2019] [Indexed: 05/19/2023]
Abstract
Recent advances in soft materials and system integration technologies have provided a unique opportunity to design various types of wearable flexible hybrid electronics (WFHE) for advanced human healthcare and human-machine interfaces. The hybrid integration of soft and biocompatible materials with miniaturized wireless wearable systems is undoubtedly an attractive prospect in the sense that the successful device performance requires high degrees of mechanical flexibility, sensing capability, and user-friendly simplicity. Here, the most up-to-date materials, sensors, and system-packaging technologies to develop advanced WFHE are provided. Details of mechanical, electrical, physicochemical, and biocompatible properties are discussed with integrated sensor applications in healthcare, energy, and environment. In addition, limitations of the current materials are discussed, as well as key challenges and the future direction of WFHE. Collectively, an all-inclusive review of the newly developed WFHE along with a summary of imperative requirements of material properties, sensor capabilities, electronics performance, and skin integrations is provided.
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Affiliation(s)
- Hyo-Ryoung Lim
- George W. Woodruff School of Mechanical Engineering, Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Hee Seok Kim
- Department of Mechanical Engineering, University of South Alabama, Mobile, AL, 36608, USA
| | - Raza Qazi
- Department of Electrical, Computer & Energy Engineering, University of Colorado Boulder, Boulder, CO, 80309, USA
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Young-Tae Kwon
- George W. Woodruff School of Mechanical Engineering, Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jae-Woong Jeong
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Woon-Hong Yeo
- George W. Woodruff School of Mechanical Engineering, Wallace H. Coulter Department of Biomedical Engineering, Institute for Electronics and Nanotechnology, Parker H. Petit Institute for Bioengineering and Biosciences, Center for Flexible and Wearable Electronics Advanced Research, Neural Engineering Center, Institute for Materials, Institute for Robotics and Intelligent Machines, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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74
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Li C, Jiao Y, Lv X, Wu S, Chen C, Zhang Y, Li J, Hu Y, Wu D, Chu J. In Situ Reversible Tuning from Pinned to Roll-Down Superhydrophobic States on a Thermal-Responsive Shape Memory Polymer by a Silver Nanowire Film. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13464-13472. [PMID: 32100537 DOI: 10.1021/acsami.9b20223] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Shape memory polymer (SMP) surfaces with tunable wettability have attracted extensive attention due to their widespread applications. However, there have been rare reports on in situ tuning wettability with SMP materials. In this paper, we reported a kind of distinct superhydrophobic SMP microconed surface on the silver nanowire (AgNW) film to achieve in situ reversible transition between pinned and roll-down states. The mechanism is taking advantage of the in situ heating functionality of the silver nanowire film by voltage, which provides the transition energy for SMP to achieve the fixation and recovery of temporary shape. It is noteworthy that the reversible transition could be repeated many times (>100 cycles), and we quantitatively investigate the shape memory ability of microcones with varied height and space under different applied voltages. These results show that the tilted microcones could recover its original upright state under a small voltage (4-11 V) in a short time, and the shortest recovery time is about 0.5 min under an applied voltage of ∼10 V. Finally, we utilize SMP microcone arrays with tunable wettability to realize lossless droplet transportation, and the tilted microconed surface also achieves liquid unidirectional transport due to its anisotropic water adhesion force. The robust microconed SMP surface with reversible morphology transitions will have far-ranging applications including droplet manipulation, reprogrammable fog harvesting, and so on.
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Affiliation(s)
- Chuanzong Li
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yunlong Jiao
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Xiaodong Lv
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Sizhu Wu
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chao Chen
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Yiyuan Zhang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Jiawen Li
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Yanlei Hu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Dong Wu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
| | - Jiaru Chu
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, China
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Dong K, Peng X, Wang ZL. Fiber/Fabric-Based Piezoelectric and Triboelectric Nanogenerators for Flexible/Stretchable and Wearable Electronics and Artificial Intelligence. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1902549. [PMID: 31348590 DOI: 10.1002/adma.201902549] [Citation(s) in RCA: 296] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/27/2019] [Indexed: 05/17/2023]
Abstract
Integration of advanced nanogenerator technology with conventional textile processes fosters the emergence of textile-based nanogenerators (NGs), which will inevitably promote the rapid development and widespread applications of next-generation wearable electronics and multifaceted artificial intelligence systems. NGs endow smart textiles with mechanical energy harvesting and multifunctional self-powered sensing capabilities, while textiles provide a versatile flexible design carrier and extensive wearable application platform for their development. However, due to the lack of an effective interactive platform and communication channel between researchers specializing in NGs and those good at textiles, it is rather difficult to achieve fiber/fabric-based NGs with both excellent electrical output properties and outstanding textile-related performances. To this end, a critical review is presented on the current state of the arts of wearable fiber/fabric-based piezoelectric nanogenerators and triboelectric nanogenerators with respect to basic classifications, material selections, fabrication techniques, structural designs, and working principles, as well as potential applications. Furthermore, the potential difficulties and tough challenges that can impede their large-scale commercial applications are summarized and discussed. It is hoped that this review will not only deepen the ties between smart textiles and wearable NGs, but also push forward further research and applications of future wearable fiber/fabric-based NGs.
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Affiliation(s)
- Kai Dong
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Xiao Peng
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
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76
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Arrangement optimization of water-driven triboelectric nanogenerators considering capillary phenomenon between hydrophobic surfaces. Sci Rep 2020; 10:1126. [PMID: 31980717 PMCID: PMC6981242 DOI: 10.1038/s41598-020-57851-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 11/08/2019] [Indexed: 02/01/2023] Open
Abstract
The rise in environmental issues has stimulated research on alternative energy. In this regard, triboelectric generation has received much attention as one of several new alternative energy sources. Among the triboelectric generation methods, solid-liquid triboelectric nanogenerators (SLTENGs) have been actively investigated owing to their durability and broad applicability. In this paper, we report on the optimum arrangement of SLTENGs to increase the generation of electrical energy. When hydrophobic SLTENGs are arranged in parallel with a specific intervening gap, the friction area between the water and the surface of the SLTENGs is changed owing to the different penetration distances of water between them. This difference affects the amount of triboelectricity generated; this change in the water contact area is caused by the capillary phenomenon. Therefore, we investigated the effect of the gap on water penetration and formulated an optimum arrangement to achieve optimum electricity generation efficiency when multiple SLTENGs are contained in a limited volume. The proposed optimum arrangement of SLTENGs is expected to have high utilization in energy harvesting from natural environment sources such as wave energy or water flow.
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77
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Tie J, Rong L, Liu H, Wang B, Mao Z, Zhang L, Zhong Y, Feng X, Sui X, Xu H. An autonomously healable, highly stretchable and cyclically compressible, wearable hydrogel as a multimodal sensor. Polym Chem 2020. [DOI: 10.1039/c9py01737b] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe3+/PVAA-PAM hydrogels show highly stretchable, self-healing properties and can be used as artificial ionic skin for directly monitoring human motion.
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78
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Tang P, Zheng X, Yang H, He J, Zheng Z, Yang W, Zhou S. Intrinsically Stretchable and Shape Memory Conducting Nanofiber for Programmable Flexible Electronic Films. ACS APPLIED MATERIALS & INTERFACES 2019; 11:48202-48211. [PMID: 31763813 DOI: 10.1021/acsami.9b14430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, flexible and stretchable electronic films have been drawing increasing attention but are limited by the nature of elastomeric materials and the embedded structure; thus, these films cannot achieve long-term and stable electrical performance at certain deformation states in practical applications. Here, we report intrinsically stretchable and shape memory polycaprolactone/polyethylene glycol/silver nanowires films (PPAFs) based on a dual-layer network structure of nanofibers that can achieve both shape-fixable and deformation-reversible conductivity in the elongation range. We also demonstrate the resistance characteristic of PPAFs at the same/different deformation rates, which shows the unique memorable resistance and the variable conversion of a "conductive-insulation-conductive" state. Importantly, the change in sheet resistance of the PPAFs fixed at any rate of deformation could sustainably recover the initial sheet resistance even after cyclic thermal responses. Furthermore, we successfully develop the programmable conductivity of PPAFs as a monitoring, switching, and alarming device for shape memory cycles through the ingenious design of a microcircuit and simulation analysis using Proteus software. PPAFs show great potential for changeable characteristics in both shape and resistance for use in flexible electronic films.
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Affiliation(s)
- Pandeng Tang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Xiaotong Zheng
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Huikai Yang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Jing He
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Zhiwen Zheng
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Weiqing Yang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Shaobing Zhou
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
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79
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Zhang Z, Gong W, Bai Z, Wang D, Xu Y, Li Z, Guo J, Turng LS. Oxygen-Rich Polymers as Highly Effective Positive Tribomaterials for Mechanical Energy Harvesting. ACS NANO 2019; 13:12787-12797. [PMID: 31633902 DOI: 10.1021/acsnano.9b04911] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Triboelectric nanogenerators (TENGs) are a potential solution to the depleted state of fossil fuels, on the condition that the energy conversion efficiency can be further improved. Tribomaterials are important not only for improving the output performance of TENGs but also for extending their applications. In this work, a poly-ε-caprolactone (PCL) electrospun membrane is proposed as a highly effective positive tribomaterial, paired with an expanded polytetrafluoroethylene (ePTFE) membrane, to fabricate TENGs (PCL/ePTFE TENGs). Compared with a widely used polyamide-6 (PA6)/ePTFE TENG, the output performance of the PCL/ePTFE TENG is enhanced by about 28%, indicating that PCL possesses a stronger electron-donating ability owing to the existence of oxygen-containing functional groups as electron donors. Furthermore, the PCL membrane is modified using poly(ethylene glycol) methyl ether (mPEG), which possesses more O atoms, by electrospinning (ES) and dip coating (DC). The results reveal that mPEG is very effective at improving the positive electron polarity of PCL. With the increase of mPEG content, the output performance increases by more than 40%, yielding a maximum power density of 115.83 W·m-2. More polymers have been compared to confirm that many oxygen-rich polymers show excellent electron-donating abilities and act as highly efficient positive tribomaterials. This work also provides additional options for more effective positive tribomaterials.
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Affiliation(s)
- Zhi Zhang
- Key Laboratory of Textile Science and Technology, Ministry of Education , College of Textiles Donghua University , Shanghai 201620 , China
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Wenzheng Gong
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Zhiqing Bai
- Key Laboratory of Textile Science and Technology, Ministry of Education , College of Textiles Donghua University , Shanghai 201620 , China
| | - Dongfang Wang
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Yiyang Xu
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Zhutong Li
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Jiansheng Guo
- Key Laboratory of Textile Science and Technology, Ministry of Education , College of Textiles Donghua University , Shanghai 201620 , China
| | - Lih-Sheng Turng
- Wisconsin Institute for Discovery , University of Wisconsin-Madison , Madison , Wisconsin 53715 , United States
- Department of Mechanical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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80
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Kamilya T, Sarkar PK, Acharya S. Unveiling Peritoneum Membrane for a Robust Triboelectric Nanogenerator. ACS OMEGA 2019; 4:17684-17690. [PMID: 31681874 PMCID: PMC6822108 DOI: 10.1021/acsomega.9b01963] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 09/12/2019] [Indexed: 06/01/2023]
Abstract
Triboelectric nanogenerators (TENGs) are smart alternative energy harvesters to convert mechanical energy into electrical energy to power small and portable electronic devices. A key challenge in fabricating an efficient TENG lies in the choice of an active material in addition to the mechanical stability and robust output performance of the device. This report suggests, for the first time, the use of a peritoneum membrane as a triboelectrically positive material for designing TENGs. The peritoneum covers the abdominal wall and diaphragm of mammals except for the kidneys and the adrenal glands and consists of a structure of a well-defined network of elastic fibers. Our peritoneum-based TENG (p-TENG) can generate an open-circuit output voltage of ∼550 V, output current density of ∼100 mA m-2, and instantaneous output power density of 9.4 Wm-2. This work demonstrates the p-TENG as a portable power source, a self-powered pedometer, and a speedometer, which conveys its futuristic applications for health care purposes. Our p-TENG is highly stable, delivering a constant output voltage of ∼550 V over a period of 90 days. The introduction of a biowaste peritoneum membrane as a triboelectrically positive component in the TENG has great potential as a portable alternative energy source owing to its abundance, stability, low cost, and ease of fabrication.
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81
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Qi X, Yang W, Yu L, Wang W, Lu H, Wu Y, Zhu S, Zhu Y, Liu X, Dong Y, Fu Y. Design of Ethylene-Vinyl Acetate Copolymer Fiber with Two-Way Shape Memory Effect. Polymers (Basel) 2019; 11:E1599. [PMID: 31574960 PMCID: PMC6835960 DOI: 10.3390/polym11101599] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/17/2019] [Accepted: 09/27/2019] [Indexed: 12/22/2022] Open
Abstract
One-dimensional shape memory polymer fibers (SMPFs) have obvious advantages in mechanical properties, dispersion properties, and weavability. In this work, a method for fabricating semi-crystallization ethylene-vinyl acetate copolymer (EVA) fiber with two-way shape memory effect by melt spinning and ultraviolet (UV) curing was developed. Here, the effect of crosslink density on its performance was systematically analyzed by gel fraction measurement, tensile tests, DSC, and TMA analysis. The results showed that the crosslink density and shape memory properties of EVA fiber could be facilely adjusted by controlling UV curing time. The resulting EVA fiber with cylindrical structure had a diameter of 261.86 ± 13.07 μm, and its mechanical strength and elongation at break were 64.46 MPa and 114.33%, respectively. The critical impact of the crosslink density and applied constant stress on the two-way shape memory effect were analyzed. Moreover, the single EVA fiber could lift more than 143 times its own weight and achieve 9% reversible actuation strain. The reversible actuation capability was significantly enhanced by a simple winding design of the single EVA fiber, which provided great potential applications in smart textiles, flexible actuators, and artificial muscles.
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Affiliation(s)
- Xiaoming Qi
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wentong Yang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Laiming Yu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Wenjun Wang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Haohao Lu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yanglong Wu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Shanwen Zhu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yaofeng Zhu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Xiangdong Liu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yubing Dong
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
| | - Yaqin Fu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
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Zhang Y, Huang L, Song H, Ni C, Wu J, Zhao Q, Xie T. 4D Printing of a Digital Shape Memory Polymer with Tunable High Performance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32408-32413. [PMID: 31412699 DOI: 10.1021/acsami.9b11062] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Shape memory polymers (SMP) with 3D geometries and tunable shape-shifting behavior can open up new opportunities in intelligent devices. Achieving both simultaneously is difficult for conventional approaches. 4D printing allows fabrication of complex 3D SMP geometries that can change shapes (i.e., the fourth dimension is time), but tuning the shape memory response is challenging because of the printing constraints. Here, we report a material and process concept that allows digital light fabrication of SMP with fine control of not only the geometries but also the shape memory characteristics, within a printing time of 30 s. Digital light modulation allows spatio-temporal tuning of the material properties including shape memory transition temperature, rubbery modulus, and maximum elongation (up to 250%). Consequently, the process allows producing multiple-SMP within a single material construct using the same printing precursor. We demonstrate that this unique attribute is beneficial in constructing unusual shape-shifting 3D nano-photonic and electronic devices. The simplicity and versatility of our approach facilitates its future expansion into a wide range of geometrically complex devices with advanced functions.
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Affiliation(s)
- Yue Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Limei Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Huijie Song
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Chujun Ni
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Jingjun Wu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering , Zhejiang University , 38 Zheda Road , Hangzhou 310027 , P. R. China
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83
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Crafting NiCo2O4@Co9S8 nanotrees on carbon cloth as flexible pressure sensors for effectively monitoring human motion. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01147-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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84
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85
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Cui S, Jiang F, Song N, Shi L, Ding P. Flexible Films for Smart Thermal Management: Influence of Structure Construction of a Two-Dimensional Graphene Network on Active Heat Dissipation Response Behavior. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30352-30359. [PMID: 31353887 DOI: 10.1021/acsami.9b10538] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In recent years, the development and wide application of micro-electronic technology brings forward high demands for active thermal management systems. However, such systems are not only costly, but also usually tethered, and need constant power to operate. To avoid such a limitation, smart thermal management systems have been developed to achieve active thermal management. Here, inspired by the temperature control principle of a butterfly, a shape memory polymer was used to endow the thermally conductive graphene-polymer hybrid film with intelligence. As the device temperature reaches 60 °C, the bud-shaped hybrid film started to bloom, which is a visually active heat dissipation process. As a result, this active process promoted the thermal management capacity of the hybrid film and increased the temperature-raising time of the light-emitting diode. Through the construction of a bilayer structure, the transmission channel for phonon transfer was optimized, which lead the hybrid film to attain a remarkable thermal conductivity of 21.83 W·m-1·K-1 with 30 wt % graphene. This graphene-polymer hybrid film shows potential application in the smart thermal management field.
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86
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Xu Z, Ding C, Wei DW, Bao RY, Ke K, Liu Z, Yang MB, Yang W. Electro and Light-Active Actuators Based on Reversible Shape-Memory Polymer Composites with Segregated Conductive Networks. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30332-30340. [PMID: 31355626 DOI: 10.1021/acsami.9b10386] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Reversible shape-memory polymers (RSMPs) show great potential in actuating applications because of its repeatability among many other advantages. Indeed, in many cases, multiresponsive RSMPs are more expected, and the strategy to introduce functional fillers without deteriorating the reversible deformation performance is of great importance. Here, a facile strategy to balance the electro, photothermal performance, and molecular chain mobility is reported. Segregated conductive networks of carbon nanotubes (S-CNTs) are constructed in the poly(ethylene-co-octene) (POE) matrix at a relatively low filler loading, which renders the composite good electrical, photothermal, and actuating properties. A low percolation threshold of 0.25 vol % is achieved. The electrical conductivity is up to 0.046 S·cm-1 for the POE/S-CNT composites with 2 vol % CNT, and the absorption of light (760 nm) is above 90%. These characteristics guarantee that the actuator can be driven at low voltage (≤36 V) and suitable light intensity (250 mW·cm-2) with a good actuating performance. An electric gripper and a light-active crawling robot demonstrate the potential applications in multiresponsive robots. This work introduces a facile strategy to fabricate multiresponsive RSMPs by designing CNT network structures in polymer composites and holds great potential to enlarge the applications of RSMPs in many areas including artificial muscles and bionic robots.
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Affiliation(s)
- Zhao Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Chao Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Dun-Wen Wei
- School of Mechanical and Electrical Engineering , University of Electronic Science and Technology of China , Chengdu 611731 , Sichuan , China
| | - Rui-Ying Bao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Kai Ke
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Zhengying Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Ming-Bo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
| | - Wei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , Sichuan , China
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87
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Zhang H, Niu W, Zhang S. Extremely Stretchable and Self-Healable Electrical Skin with Mechanical Adaptability, an Ultrawide Linear Response Range, and Excellent Temperature Tolerance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24639-24647. [PMID: 31257840 DOI: 10.1021/acsami.9b09430] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Artificial electronic skin (e-skin) that imitates the complex functions of human skin is able to transduce external stimuli into electronic signals. However, it remains challenging to fabricate e-skin sensing materials with extreme stretchability, self-healing, mechanical compliance, extreme temperature tolerance, and an ultrawide linear response range. Here, we demonstrate a new e-skin sensor fabricated by introducing polyvinylpyrrolidone (PVP)-capped Ag nanowires into the chemically and physically cross-linked polyacrylamide-PVP double-network ethylene glycol organogel. The resulting organogel e-skin exhibits extreme stretchability (>22 000%), autonomous self-healing, as well as mechanical compliance. Particularly, the sensor is capable of antifreezing and antiheating (-20 to 80 °C) and provides an ultrawide linear response range with a gauge factor of 0.15 for 0-430% tensile strain and 0.71 for 430-18 100% tensile strain, respectively. By dynamically accommodating to a curved surface, the e-skin sensor demonstrates comprehensive applications in real-time and in situ tracking of large body deformations, spatial gesture movements, and physiological signals for motion behaviors and health level evaluation, showing great promise in wearable electronics, biomedical devices, and soft robotics.
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Affiliation(s)
- Haoxiang Zhang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Wenbin Niu
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , West Campus, 2 Linggong Rd. , Dalian 116024 , China
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88
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Tran H, Feig VR, Liu K, Zheng Y, Bao Z. Polymer Chemistries Underpinning Materials for Skin-Inspired Electronics. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00410] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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89
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Troyano J, Carné-Sánchez A, Maspoch D. Programmable Self-Assembling 3D Architectures Generated by Patterning of Swellable MOF-Based Composite Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1808235. [PMID: 30957295 DOI: 10.1002/adma.201808235] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/08/2019] [Indexed: 06/09/2023]
Abstract
The integration of swellable metal-organic frameworks (MOFs) into polymeric composite films is a straightforward strategy to develop soft materials that undergo reversible shape transformations derived from the intrinsic flexibility of MOF crystals. However, a crucial step toward their practical application relies on the ability to attain specific and programmable actuation, which enables the design of self-shaping objects on demand. Herein, a chemical etching method is demonstrated for the fabrication of patterned composite films showing tunable self-folding response, predictable and reversible 2D-to-3D shape transformations triggered by water adsorption/desorption. These films are fabricated by selective removal of swellable MOF crystals allowing control over their spatial distribution within the polymeric film. Upon exposure to moisture, various programmable 3D architectures, which include a mechanical gripper, a lift, and a unidirectional walking device, are generated. Remarkably, these 2D-to-3D shape transformations can be reversed by light-induced desorption. The reported strategy offers a platform for fabricating flexible MOF-based autonomous soft mechanical devices with functionalities for micromanipulation, automation, and robotics.
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Affiliation(s)
- Javier Troyano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Arnau Carné-Sánchez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and the Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193, Barcelona, Spain
- ICREA, Passeig de Lluís Companys, 23, 08010, Barcelona, Spain
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90
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Prototype of energy harvesting door handles using polymer nanocomposite. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01027-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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91
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Xu XQ, He Y, Liu H, Wang Y. Polydiacetylene-Polyurethane Crisscross Elastomer as an Intrinsic Shape Memory Conductive Polymer. ACS Macro Lett 2019; 8:409-413. [PMID: 35651124 DOI: 10.1021/acsmacrolett.9b00179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Owing to the high phase transition temperature and incompatibility with thermoplastic elastomers, conjugated polymers are hardly formulated as shape memory materials. This work presents a crisscross polymer composed of polyurethane and polydiacetylene. Phase separation is completely avoided based on the photoinduced polymerization of polydiacetylene from polyurethane chains. The two backbones are intercrossed and covalently linked to each other. Particularly, polyurethane acts as a soft segment to provide elastic performance, and the rigid polydiacetylene provides conductive pathways. Such a crisscross topology, combined with soft and rigid compositions, renders the possibility to serve the polymer as an intrinsically elastic conductive polymer. Intriguingly, the polymer possesses shape memory performance, meanwhile retaining the reliable conductivity. Electrical tests demonstrate that the shape memory conductive polymer is one attractive candidate for exploiting shape-customized strain sensors.
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Affiliation(s)
- Xiao-Qi Xu
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Yonglin He
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Haocheng Liu
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
| | - Yapei Wang
- Department of Chemistry, Renmin University of China, Beijing 100872, PR China
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92
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Jiang S, Hu Y, Wu H, Zhang Y, Zhang Y, Wang Y, Zhang Y, Zhu W, Li J, Wu D, Chu J. Multifunctional Janus Microplates Arrays Actuated by Magnetic Fields for Water/Light Switches and Bio-Inspired Assimilatory Coloration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807507. [PMID: 30721548 DOI: 10.1002/adma.201807507] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/16/2019] [Indexed: 05/21/2023]
Abstract
Smart dynamic regulation structured surfaces, inspired by nature, which can dynamically change their surface topographies under external stimuli for convertible fluidic and optical properties, have recently motivated significant interest for scientific research and industrial applications. However, there is still high demand for the development of multifunctional dynamically transformable surfaces using facile preparation strategies. In this work, a type of Janus high-aspect-ratio magnetically responsive microplates array (HAR-MMA) is readily fabricated by integrating a flexible laser scanning strategy, smart shape-memory-polymer-based soft transfer, and a simple surface treatment. By applying external magnetic field, instantaneous and reversible deformation of Janus HAR-MMA can be actuated, so surface wettability can be reversibly switched between superhydrophobic (158°) and hydrophilic (40°) states, based on which a novel magnetically responsive water droplet switch can be realized. Moreover, inspired by the biological assimilatory coloration of chameleons, dynamically color conversion can be skillfully realized by applying different colors on each side of the Janus HAR-MMA. Finally, as a proof-of-concept demonstration in light manipulation, a HAR-MMA is applied as an optical shutter actuated by external magnetic field with eximious controllability and repeatability. The developed multifunctional HAR-MMA provides a versatile platform for microfluidic, biomedical, and optical applications.
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Affiliation(s)
- Shaojun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Yanlei Hu
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Hao Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Yachao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Yiyuan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Yulong Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Yinghui Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Wulin Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Jiawen Li
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Dong Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Jiaru Chu
- Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China
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93
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Chen L, Li W, Liu X, Zhang C, Zhou H, Song S. Carbon nanotubes array reinforced shape-memory epoxy with fast responses to low-power microwaves. J Appl Polym Sci 2019. [DOI: 10.1002/app.47563] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Lei Chen
- Department of Mechanical Engineering; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
- Department of Astronautical Science and Mechanics; Harbin Institute of Technology, No. 92 West Dazhi Street; Harbin 150001 China
| | - Wei Li
- Department of Mechanical Engineering; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
| | - Xiaopei Liu
- Department of Mechanical Engineering; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
| | - Chi Zhang
- Department of Mechanical Engineering; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
| | - Hang Zhou
- Industrial Technology Research Institute; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
| | - Shuwen Song
- Industrial Technology Research Institute; Henan Mechanical and Electrical Vocational College, No.1 Taishan Road; Zhengzhou 451191 China
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94
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Abstract
Smart polymers that are capable of controlled shape transformations under external stimuli have attracted significant attention in the recent years due to the resemblance of this behavior to the biological intelligence observed in nature. In this review, we focus on the recent progress in the field of shape-morphing polymers, highlighting their most promising applications in the biomedical field.
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Affiliation(s)
- Alina Kirillova
- Department of Mechanical Engineering and Materials Science
- Edmund T. Pratt Jr. School of Engineering
- Duke University
- Durham
- USA
| | - Leonid Ionov
- Faculty of Engineering Science
- University of Bayreuth
- 95440 Bayreuth
- Germany
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95
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Troyano J, Carné‐Sánchez A, Pérez‐Carvajal J, León‐Reina L, Imaz I, Cabeza A, Maspoch D. A Self‐Folding Polymer Film Based on Swelling Metal–Organic Frameworks. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Javier Troyano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
| | - Arnau Carné‐Sánchez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
| | - Javier Pérez‐Carvajal
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
| | - Laura León‐Reina
- Servicios Centrales de Apoyo a la InvestigaciónUniversidad de Málaga 29071 Málaga Spain
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
| | - Aurelio Cabeza
- Dpto Química Inorgánica, Cristalografía y Mineralogía, Campus de Teatinos s/nUniversidad de Málaga 29071 Málaga Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Spain
- ICREA Pg. Lluís Companys 23 Barcelona 08010 Spain
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96
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A Spherical Hybrid Triboelectric Nanogenerator for Enhanced Water Wave Energy Harvesting. MICROMACHINES 2018; 9:mi9110598. [PMID: 30445759 PMCID: PMC6266367 DOI: 10.3390/mi9110598] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/10/2018] [Accepted: 11/12/2018] [Indexed: 11/17/2022]
Abstract
Water waves are a continuously generated renewable source of energy. However, their random motion and low frequency pose significant challenges for harvesting their energy. Herein, we propose a spherical hybrid triboelectric nanogenerator (SH-TENG) that efficiently harvests the energy of low frequency, random water waves. The SH-TENG converts the kinetic energy of the water wave into solid⁻solid and solid⁻liquid triboelectric energy simultaneously using a single electrode. The electrical output of the SH-TENG for six degrees of freedom of motion in water was investigated. Further, in order to demonstrate hybrid energy harvesting from multiple energy sources using a single electrode on the SH-TENG, the charging performance of a capacitor was evaluated. The experimental results indicate that SH-TENGs have great potential for use in self-powered environmental monitoring systems that monitor factors such as water temperature, water wave height, and pollution levels in oceans.
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97
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Yan B, Zheng X, Tang P, Yang H, He J, Zhou S. Investigating Switchable Nanostructures in Shape Memory Process for Amphipathic Janus Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36249-36258. [PMID: 30255706 DOI: 10.1021/acsami.8b11276] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Janus particles (JPs) have attracted increasing attention from the communities of materials science, chemistry, physics, and biology. However, the nanoscale JPs that can switch shapes in response to an environmental stimulus is a significant challenge. In this article, we have demonstrated a simple procedure to fabricate the amphipathic Janus nanoparticles (JNPs) composed of hydrophilic body and hydrophobic lobe via using sudden negative pressure technique. Moreover, in response to temperature, the nanoparticles can recover to their initial nanosphere state by a switchable process, showing promising shape memory effect. Here, we can monitor the switchable nanostructures with hydrophilic and hydrophobic changes in the shape memory process of the JNPs by transmission electron microscope, dynamic light scattering, and water contact angle. Furthermore, we successfully compare the differences in shape deformation ratio and shape recovery ratio using the three test methods by the statistical analysis of Student's t-test for independent samples. In addition, we also develop hybrid magnetic Janus nanoparticles, changed from the amphipathic JNPs by the selective attachment of magnetic nanoparticles with hydrophobic molecules, which show new Janus nanostructure and shape memory property.
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Affiliation(s)
- Bingyun Yan
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Xiaotong Zheng
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Pandeng Tang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Huikai Yang
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Jing He
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
| | - Shaobing Zhou
- School of Materials Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education , Southwest Jiaotong University , Chengdu 610031 , China
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98
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Troyano J, Carné-Sánchez A, Pérez-Carvajal J, León-Reina L, Imaz I, Cabeza A, Maspoch D. A Self-Folding Polymer Film Based on Swelling Metal-Organic Frameworks. Angew Chem Int Ed Engl 2018; 57:15420-15424. [PMID: 30226289 DOI: 10.1002/anie.201808433] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Indexed: 12/20/2022]
Abstract
Herein, we exploit the well-known swelling behaviour of metal-organic frameworks (MOFs) to create a self-folding polymer film. Namely, we show that incorporating crystals of the flexible MOF MIL-88A into a polyvinylidene difluoride (PVDF) matrix affords a polymer composite film that undergoes reversible shape transformations upon exposure to polar solvents and vapours. Since the self-folding properties of this film correlate directly with the swelling properties of the MIL-88A crystals, it selectively bends to certain solvents and its degree of folding can be controlled by controlling the relative humidity. Moreover, it shows a shape-memory effect at relative humidity values from 60 % to 90 %. As proof of concept, we demonstrate that these composite films can lift cargo and can be used to assemble 3D structures from 2D patterns. Our strategy is a straightforward method for designing autonomous soft materials with folding properties that can be tuned by judicious choice of the constituent flexible MOF.
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Affiliation(s)
- Javier Troyano
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Arnau Carné-Sánchez
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Javier Pérez-Carvajal
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Laura León-Reina
- Servicios Centrales de Apoyo a la Investigación, Universidad de Málaga, 29071, Málaga, Spain
| | - Inhar Imaz
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Aurelio Cabeza
- Dpto Química Inorgánica, Cristalografía y Mineralogía, Campus de Teatinos s/n, Universidad de Málaga, 29071, Málaga, Spain
| | - Daniel Maspoch
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, Barcelona, 08010, Spain
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99
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Zhao T, Li J, Zeng H, Fu Y, He H, Xing L, Zhang Y, Xue X. Self-powered wearable sensing-textiles for real-time detecting environmental atmosphere and body motion based on surface-triboelectric coupling effect. NANOTECHNOLOGY 2018; 29:405504. [PMID: 30015628 DOI: 10.1088/1361-6528/aad3fc] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Self-powered wearable sensing-textiles for real-time detecting environmental atmosphere and body motion have been presented. The textile is based on highly-stretchable conductive ecoflex fiber modified with multiwall carbon nanotube and polyaniline (PANI) derivatives (acting as one electrode). The surface of the fiber is twined with varnished wire (acting as the other electrode). Upon applied deformation of stretching or bending, the sensing-textile can harvest the mechanical energy and output electric signals through the triboelectrification effect between PANI and varnished wire. After being attached on the human body, the triboelectric output of the sensing-textile can be used to monitor body motion, including finger bending and body stretching. Interestingly, the triboelectric output of the sensing-textile is significantly dependent on the atmosphere, which can actively distinguish different gas species in the environment. The sensitivity, stability and selectivity against ethanol, ammonia, acetone and formaldehyde are high. The response against 400 ppm ethanol vapor at room temperature is up to 54.73%. The current density is 2.1 × 10-4 A m-2, and the power density is 4.2 × 10-5 W m-2. During both the motion detecting and gas sensing processes, no external electricity power is needed. The triboelectric signal can be treated as not only the sensing signal but also the power source for driving the device. The working mechanism is based on surface-triboelectric coupling effect. The present results can promote the development of self-powered wearable electronics.
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Affiliation(s)
- Tianming Zhao
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
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100
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Wang P, Pan L, Wang J, Xu M, Dai G, Zou H, Dong K, Wang ZL. An Ultra-Low-Friction Triboelectric-Electromagnetic Hybrid Nanogenerator for Rotation Energy Harvesting and Self-Powered Wind Speed Sensor. ACS NANO 2018; 12:9433-9440. [PMID: 30205007 DOI: 10.1021/acsnano.8b04654] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Triboelectric nanogenerators (TENGs) are attracting more and more attention since they can convert various mechanical energies into electric energy. However, in traditional TENGs for harvesting rotation energy, most of the contacts between two triboelectric materials are rigid-to-rigid contact with very large friction force, which limits their practical application. Here, we report an ultra-low-friction triboelectric-electromagnetic hybrid nanogenerator (NG). A freestanding mode TENG and a rotating electromagnetic generator (EMG) are integrated together to realize the complementary individual merits. The very soft and elastic contact between the two triboelectric materials in the TENG results into very small friction force. The influences of the type and the dimensions of the dielectric material on the performance of the TENG are studied systematically from theory to experiments. The results indicate that the open-circuit voltage and the transfer charge of the TENG increase with the rotation speed, which is very different from a traditional rotary TENG and is due to the increase of the contact area. The optimized TENG has a maximal load voltage of 65 V and maximal load power per unit mass of 438.9 mW/kg under a speed rotation of 1000 rpm, while the EMG has a maximal load voltage of 7 V and maximal load power density of 181 mW/kg. This demonstration shows that the hybrid NG can power a humidity/temperature sensor by converting wind energy into electric energy when the wind speed is 5.7 m/s. Meanwhile, it can be used as a self-powered wind speed sensor to detect wind speed as low as 3.5 m/s.
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Affiliation(s)
- Peihong Wang
- School of Physics and Materials Science , Anhui University , Hefei , Anhui 230601 , China
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Lun Pan
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Jiyu Wang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Minyi Xu
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Guozhang Dai
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Haiyang Zou
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Kai Dong
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
| | - Zhong Lin Wang
- School of Materials Science and Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332-0245 , United States
- Beijing Institute of Nanoenergy and Nanosystems , Chinese Academy of Sciences , Beijing 100083 , China
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