51
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Feng Y, Cölfen H, Xiong R. Organized mineralized cellulose nanostructures for biomedical applications. J Mater Chem B 2023. [PMID: 36892529 DOI: 10.1039/d2tb02611b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Cellulose is the most abundant naturally-occurring polymer, and possesses a one-dimensional (1D) anisotropic crystalline nanostructure with outstanding mechanical robustness, biocompatibility, renewability and rich surface chemistry in the form of nanocellulose in nature. Such features make cellulose an ideal bio-template for directing the bio-inspired mineralization of inorganic components into hierarchical nanostructures that are promising in biomedical applications. In this review, we will summarize the chemistry and nanostructure characteristics of cellulose and discuss how these favorable characteristics regulate the bio-inspired mineralization process for manufacturing the desired nanostructured bio-composites. We will focus on uncovering the design and manipulation principles of local chemical compositions/constituents and structural arrangement, distribution, dimensions, nanoconfinement and alignment of bio-inspired mineralization over multiple length-scales. In the end, we will underline how these cellulose biomineralized composites benefit biomedical applications. It is expected that this deep understanding of design and fabrication principles will enable construction of outstanding structural and functional cellulose/inorganic composites for more challenging biomedical applications.
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Affiliation(s)
- Yanhuizhi Feng
- Department of Periodontology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Helmut Cölfen
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstraße 10, Konstanz, Germany.
| | - Rui Xiong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
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Lyu J, Zhou Q, Wang H, Xiao Q, Qiang Z, Li X, Wen J, Ye C, Zhu M. Mechanically Strong, Freeze-Resistant, and Ionically Conductive Organohydrogels for Flexible Strain Sensors and Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206591. [PMID: 36658775 PMCID: PMC10037987 DOI: 10.1002/advs.202206591] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Conductive hydrogels as promising material candidates for soft electronics have been rapidly developed in recent years. However, the low ionic conductivity, limited mechanical properties, and insufficient freeze-resistance greatly limit their applications for flexible and wearable electronics. Herein, aramid nanofiber (ANF)-reinforced poly(vinyl alcohol) (PVA) organohydrogels containing dimethyl sulfoxide (DMSO)/H2 O mixed solvents with outstanding freeze-resistance are fabricated through solution casting and 3D printing methods. The organohydrogels show both high tensile strength and toughness due to the synergistic effect of ANFs and DMSO in the system, which promotes PVA crystallization and intermolecular hydrogen bonding interactions between PVA molecules as well as ANFs and PVA, confirmed by a suite of characterization and molecular dynamics simulations. The organohydrogels also exhibit ultrahigh ionic conductivity, ranging from 1.1 to 34.3 S m-1 at -50 to 60 °C. Building on these excellent material properties, the organohydrogel-based strain sensors and solid-state zinc-air batteries (ZABs) are fabricated, which have a broad working temperature range. Particularly, the ZABs not only exhibit high specific capacity (262 mAh g-1 ) with ultra-long cycling life (355 cycles, 118 h) even at -30 °C, but also can work properly under various deformation states, manifesting their great potential applications in soft robotics and wearable electronics.
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Affiliation(s)
- Jiayu Lyu
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Qingya Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Haifeng Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Qi Xiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Zhe Qiang
- School of Polymer Science and EngineeringThe University of Southern MississippiHattiesburgMS39406USA
| | - Xiaopeng Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Jin Wen
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Changhuai Ye
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China
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53
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Hu L, Xie Y, Gao S, Shi X, Lai C, Zhang D, Lu C, Liu Y, Du L, Fang X, Xu F, Wang C, Chu F. Strain-induced orientation facilitates the fabrication of highly stretchable and tough xylan-based hydrogel for strain sensors. Carbohydr Polym 2023; 312:120827. [PMID: 37059554 DOI: 10.1016/j.carbpol.2023.120827] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/03/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023]
Abstract
Stretchable and tough polysaccharide-based functional hydrogels have gained popularity for various applications. However, it still remains a great challenge to simultaneously own satisfactory stretchability and toughness, particularly when incorporating renewable xylan to offer sustainability. Herein, we describe a novel stretchable and tough xylan-based conductive hydrogel utilizing the natural feature of rosin derivative. The effect of different compositions on the mechanical properties and the physicochemical properties of corresponding xylan-based hydrogels were systematically investigated. Owing to the multiple non-covalent interactions among different components to dissipate energies and the strain-induced orientation of rosin derivative during the stretching, the highest tensile strength, strain, and toughness of xylan-based hydrogels could reach 0.34 MPa, 2098.4 %, and 3.79 ± 0.95 MJ/m3, respectively. Furthermore, by incorporating MXene as the conductive fillers, the strength and toughness of hydrogels were further enhanced to 0.51 MPa and 5.95 ± 1.19 MJ/m3. Finally, the synthesized xylan-based hydrogels were able to serve as a reliable and sensitive strain sensor to monitor the movements of human beings. This study provides new insights to develop stretchable and tough conductive xylan-based hydrogel, especially utilizing the natural feature of bio-based resources.
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Affiliation(s)
- Lisong Hu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Road73#, Hangzhou 311400, Zhejiang, China
| | - Yitong Xie
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Key Laboratory of Wood Material Science and Application, Ministry of Education, MOE Engineering Research Center of Forestry Biomass Materials and Energy, Beijing Forestry University, 100083 Beijing, China
| | - Shishuai Gao
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Xiaoyu Shi
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Chenhuan Lai
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Daihui Zhang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; Key Laboratory of Wood Material Science and Application, Ministry of Education, MOE Engineering Research Center of Forestry Biomass Materials and Energy, Beijing Forestry University, 100083 Beijing, China.
| | - Chuanwei Lu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Yi Liu
- Key Laboratory of Wood Material Science and Application, Ministry of Education, MOE Engineering Research Center of Forestry Biomass Materials and Energy, Beijing Forestry University, 100083 Beijing, China
| | - Lei Du
- State Key Laboratory of Bioreactor Engineering, Department of Food Science and Technology, School of Biotechnology, East China University of Science and Technology, 200237 Shanghai, China.
| | - Xuezhi Fang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Daqiao Road73#, Hangzhou 311400, Zhejiang, China.
| | - Feng Xu
- Key Laboratory of Wood Material Science and Application, Ministry of Education, MOE Engineering Research Center of Forestry Biomass Materials and Energy, Beijing Forestry University, 100083 Beijing, China
| | - Chunpeng Wang
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
| | - Fuxiang Chu
- Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, National Engineering Laboratory for Biomass Chemical Utilization, Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, Jiangsu, China
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54
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Sun M, Li H, Hou Y, Huang N, Xia X, Zhu H, Xu Q, Lin Y, Xu L. Multifunctional tendon-mimetic hydrogels. SCIENCE ADVANCES 2023; 9:eade6973. [PMID: 36800416 PMCID: PMC9937573 DOI: 10.1126/sciadv.ade6973] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 01/18/2023] [Indexed: 05/21/2023]
Abstract
We report multifunctional tendon-mimetic hydrogels constructed from anisotropic assembly of aramid nanofiber composites. The stiff nanofibers and soft polyvinyl alcohol in these anisotropic composite hydrogels (ACHs) mimic the structural interplay between aligned collagen fibers and proteoglycans in tendons. The ACHs exhibit a high modulus of ~1.1 GPa, strength of ~72 MPa, fracture toughness of 7333 J/m2, and many additional characteristics matching those of natural tendons, which was not achieved with previous synthetic hydrogels. The surfaces of ACHs were functionalized with bioactive molecules to present biophysical cues for the modulation of morphology, phenotypes, and other behaviors of attached cells. Moreover, soft bioelectronic components can be integrated on ACHs, enabling in situ sensing of various physiological parameters. The outstanding mechanics and functionality of these tendon mimetics suggest their further applications in advanced tissue engineering, implantable prosthetics, human-machine interactions, and other technologies.
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Affiliation(s)
- Mingze Sun
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Hegeng Li
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Yong Hou
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Nan Huang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Xingyu Xia
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Hengjia Zhu
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Qin Xu
- Department of Physics, Faculty of Sciences, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Yuan Lin
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
- Advanced Biomedical Instrumentation Centre Limited, Hong Kong SAR, China
| | - Lizhi Xu
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China
- Advanced Biomedical Instrumentation Centre Limited, Hong Kong SAR, China
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55
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Jin JN, Yang XR, Wang YF, Zhao LM, Yang LP, Huang L, Jiang W. Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel. Angew Chem Int Ed Engl 2023; 62:e202218313. [PMID: 36583510 DOI: 10.1002/anie.202218313] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
Many strategies have been developed for constructing anisotropic hydrogels, however, it remains a challenge to fabricate hydrogels with anisotropic nanocrystalline domains from intrinsically soft networks. Here, we report a naphthotube-based polyrotaxane-containing hydrogel that can be reinforced via mechanical training. During the training process, the hydrogel can adopt reorientation of polymer chains to form anisotropic structures driven by external uniaxial force. Due to the multiple hydrogen bonding sites and movable feature of naphthotube, the sliding of naphthotube on PEG chains simultaneously inducing the zipping of adjacent polymer chains to form densely anisotropic nanocrystalline domains through hydrogen bonded networks. Thus, the trained hydrogel exhibits an enhanced tension stress of ≈110 kPa, which realize a remarkable enhancement of ≈10 times compare to initial state. This study provides a new tactic for improving the mechanical performance of soft materials.
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Affiliation(s)
- Jia-Ni Jin
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Xi-Ran Yang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Yan-Fang Wang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Lei-Min Zhao
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liu-Pan Yang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liping Huang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Wei Jiang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
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56
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Zhu T, Ni Y, Biesold GM, Cheng Y, Ge M, Li H, Huang J, Lin Z, Lai Y. Recent advances in conductive hydrogels: classifications, properties, and applications. Chem Soc Rev 2023; 52:473-509. [PMID: 36484322 DOI: 10.1039/d2cs00173j] [Citation(s) in RCA: 83] [Impact Index Per Article: 83.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hydrogel-based conductive materials for smart wearable devices have attracted increasing attention due to their excellent flexibility, versatility, and outstanding biocompatibility. This review presents the recent advances in multifunctional conductive hydrogels for electronic devices. First, conductive hydrogels with different components are discussed, including pure single network hydrogels based on conductive polymers, single network hydrogels with additional conductive additives (i.e., nanoparticles, nanowires, and nanosheets), double network hydrogels based on conductive polymers, and double network hydrogels with additional conductive additives. Second, conductive hydrogels with a variety of functionalities, including self-healing, super toughness, self-growing, adhesive, anti-swelling, antibacterial, structural color, hydrophobic, anti-freezing, shape memory and external stimulus responsiveness are introduced in detail. Third, the applications of hydrogels in flexible devices are illustrated (i.e., strain sensors, supercapacitors, touch panels, triboelectric nanogenerator, bioelectronic devices, and robot). Next, the current challenges facing hydrogels are summarized. Finally, an imaginative but reasonable outlook is given, which aims to drive further development in the future.
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Affiliation(s)
- Tianxue Zhu
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China.
| | - Yimeng Ni
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China.
| | - Gill M Biesold
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Yan Cheng
- Zhejiang Engineering Research Center for Tissue Repair Materials, Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Science, Wenzhou, Zhejiang 325000, P. R. China
| | - Mingzheng Ge
- School of Textile and Clothing, Nantong University, Nantong 226019, P. R. China
| | - Huaqiong Li
- Zhejiang Engineering Research Center for Tissue Repair Materials, Joint Centre of Translational Medicine, Wenzhou Institute, University of Chinese Academy of Science, Wenzhou, Zhejiang 325000, P. R. China
| | - Jianying Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China. .,Qingyuan Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Zhiqun Lin
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore.
| | - Yuekun Lai
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China. .,Qingyuan Innovation Laboratory, Quanzhou 362801, P. R. China
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57
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Guo X, Dong X, Zou G, Gao H, Zhai W. Strong and tough fibrous hydrogels reinforced by multiscale hierarchical structures with multimechanisms. SCIENCE ADVANCES 2023; 9:eadf7075. [PMID: 36630512 PMCID: PMC9833652 DOI: 10.1126/sciadv.adf7075] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 06/01/2023]
Abstract
Tough natural materials such as nacre, bone, and silk exhibit multiscale hierarchical structures where distinct toughening mechanisms occur at each level of the hierarchy, ranging from molecular uncoiling to microscale fibrillar sliding to macroscale crack deflection. An open question is whether and how the multiscale design motifs of natural materials can be translated to the development of next-generation biomimetic hydrogels. To address this challenge, we fabricate strong and tough hydrogel with architected multiscale hierarchical structures using a freeze-casting-assisted solution substitution strategy. The underlying multiscale multimechanisms are attributed to the gel's hierarchical structures, including microscale anisotropic honeycomb-structured fiber walls and matrix, with a modulus of 8.96 and 0.73 MPa, respectively; hydrogen bond-enhanced fibers with nanocrystalline domains; and cross-linked strong polyvinyl alcohol chains with chain-connecting ionic bonds. This study establishes a blueprint of structure-performance mechanisms in tough hierarchically structured hydrogels and can inspire advanced design strategies for other promising hierarchical materials.
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Affiliation(s)
- Xiao Guo
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Xinyu Dong
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
| | - Guijin Zou
- School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Huajian Gao
- School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore 639798, Singapore
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
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58
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Alginate Hydrogels Reinforced by Dehydration under Stress-Application to a Soft Magnetic Actuator. Gels 2023; 9:gels9010039. [PMID: 36661805 PMCID: PMC9858607 DOI: 10.3390/gels9010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023] Open
Abstract
We investigated the effect of partial dehydration under mechanical stress in the properties of alginate hydrogels. For this aim, we characterized the mechanical properties of the hydrogels under tensile and shear stress, as well as their swelling behavior, macroscopic appearance, and microscopic structure. We found that the processes of dehydration under a mechanical stress were irreversible with fully rehydration being impossible. What is more, these processes gave rise to an enhancement of the mechanical robustness of the hydrogels beyond the effect due to the increase in polymer concentration caused by dehydration. Finally, we analyzed the applicability of these results to alginate-based magnetic hydrogel grippers that bended in response to an applied magnetic field. Remarkably, our study demonstrated that the dehydration of the magnetic hydrogels under compression facilitated their bending response.
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Zheng L, She M, Ai B, Yang Y, Zheng X, Wang S, Xiao D, Jiang Z, Sheng Z. Construction and properties of an amyloid fiber ferulic acid chitosan double network hydrogel and its inhibition of AGEs activity. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Wang Y, Sun L, Chen G, Chen H, Zhao Y. Structural Color Ionic Hydrogel Patches for Wound Management. ACS NANO 2022; 17:1437-1447. [PMID: 36512760 DOI: 10.1021/acsnano.2c10142] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ionic hydrogels have attracted extensive attention because of their wide applicability in electronic skins, biosensors, and other biomedical areas. Tremendous effort is dedicated to developing ionic hydrogels with improved detection accuracy and multifunctionality. Herein, we present an inverse opal scaffold-based structural color ionic hydrogel with the desired features as intelligent patches for wound management. The patches were composed of a polyacrylamide-poly(vinyl alcohol)-polyethylenimine-lithium chloride (PAM-PVA-PEI-LiCl) inverse opal scaffold and a vascular endothelial growth factor (VEGF) mixed methacrylated gelatin (GelMA) hydrogel filler surface. The scaffold imparted the composite patches with brilliant structural color, conductive property, and freezing resistance, while the VEGF-GelMA surface could not only prevent the ionic hydrogel from the interference of complex wound conditions but also contribute to the cell proliferation and tissue repair in the wounds. Thus, the hydrogel patches could serve as electronic skins for in vivo wound healing and monitoring with high accuracy and reliability. These features indicate that the proposed structural color ionic hydrogel patches have great potential for clinical applications.
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Affiliation(s)
- Yu Wang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing210096, China
| | - Lingyu Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing210096, China
| | - Guopu Chen
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing210096, China
| | - Hanxu Chen
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing210096, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, School of Biological Science and Medical Engineering, Southeast University, Nanjing210096, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang325001, China
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Zhang J, Hu Y, Zhang L, Zhou J, Lu A. Transparent, Ultra-Stretching, Tough, Adhesive Carboxyethyl Chitin/Polyacrylamide Hydrogel Toward High-Performance Soft Electronics. NANO-MICRO LETTERS 2022; 15:8. [PMID: 36477664 PMCID: PMC9729505 DOI: 10.1007/s40820-022-00980-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/22/2022] [Indexed: 05/23/2023]
Abstract
To date, hydrogels have gained increasing attentions as a flexible conductive material in fabricating soft electronics. However, it remains a big challenge to integrate multiple functions into one gel that can be used widely under various conditions. Herein, a kind of multifunctional hydrogel with a combination of desirable characteristics, including remarkable transparency, high conductivity, ultra-stretchability, toughness, good fatigue resistance, and strong adhesive ability is presented, which was facilely fabricated through multiple noncovalent crosslinking strategy. The resultant versatile sensors are able to detect both weak and large deformations, which owns a low detection limit of 0.1% strain, high stretchability up to 1586%, ultrahigh sensitivity with a gauge factor up to 18.54, as well as wide pressure sensing range (0-600 kPa). Meanwhile, the fabrication of conductive hydrogel-based sensors is demonstrated for various soft electronic devices, including a flexible human-machine interactive system, the soft tactile switch, an integrated electronic skin for unprecedented nonplanar visualized pressure sensing, and the stretchable triboelectric nanogenerators with excellent biomechanical energy harvesting ability. This work opens up a simple route for multifunctional hydrogel and promises the practical application of soft and self-powered wearable electronics in various complex scenes.
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Affiliation(s)
- Jipeng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
- Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Yang Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
- Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
- Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Jinping Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China
- Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan, 430072, People's Republic of China
| | - Ang Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China.
- Hubei Engineering Center of Natural Polymer-Based Medical Materials, Wuhan University, Wuhan, 430072, People's Republic of China.
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Ma X, Maimaitiyiming X. High Electrical Conductivity and Low Temperature Resistant Double Network Hydrogel Ionic Conductor as a Flexible Sensor and Quasi‐Solid Electrolyte. ChemistrySelect 2022. [DOI: 10.1002/slct.202203285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Xudong Ma
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 Xinjiang PR China
| | - Xieraili Maimaitiyiming
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of Chemistry Xinjiang University Urumqi 830046 Xinjiang PR China
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63
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Xiong R, Wu W, Lu C, Cölfen H. Bioinspired Chiral Template Guided Mineralization for Biophotonic Structural Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206509. [PMID: 36208076 DOI: 10.1002/adma.202206509] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Nature provides numerous biomineral design inspirations for constructing structural materials with desired functionalities. However, large-scale production of damage-tolerant Bouligand structural materials with biologically comparable photonics remains a longstanding challenge. Here, an efficient and scalable artificial molting strategy, based on self-assembly of cellulose nanocrystals and subsequent mineralization of amorphous calcium carbonate, is developed to produce biomimetic materials with an exceptional combination of mechanical and photonic properties that are usually mutually exclusive in synthetic materials. These biomimetic composites exhibit tunable mechanics from "strong and flexible", which exceeds the benchmark of natural chiral materials, to "stiff and hard", which is comparable to natural and synthetic counterparts. Especially, the biomimetic composites possess ultrahigh stiffness of 2 GPa in their fully water-swollen state-a value well beyond hydrated crab exoskeleton, cartilage, tendon, and stiffest synthetic hydrogels, combined with exceptional strength and resilience. Additionally, these composites are distinguished by the tunable chiral structural color and water-triggered switchable photonics that are absent in most artificial mineralized materials, as well as unique hydroplastic properties. This study opens the door for a scalable synthesis of resilient biophotonic structural materials in practical bulk form.
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Affiliation(s)
- Rui Xiong
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Wanlin Wu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China
| | - Helmut Cölfen
- Physical Chemistry, Department of Chemistry, University of Konstanz, Universitätsstraße 10, D-78457, Konstanz, Germany
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64
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Chen J, Chen J, Zhu Z, Sun T, Liu M, Lu L, Zhou C, Luo B. Drug-Loaded and Anisotropic Wood-Derived Hydrogel Periosteum with Super Antibacterial, Anti-Inflammatory, and Osteogenic Activities. ACS APPLIED MATERIALS & INTERFACES 2022; 14:50485-50498. [PMID: 36331130 DOI: 10.1021/acsami.2c12147] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Current artificial periostea mainly focus on osteogenic activity but overlook structural and mechanical anisotropy, as well as the importance of antibacterial and anti-inflammatory properties. Here, inspired by the anisotropic structure of wood, the delignified wood (named white wood, WW) with a porous and highly oriented cellulose fiber skeleton was obtained, which was further filled with polyvinyl alcohol (PVA) hydrogel loaded with curcumin (Cur) and phytic acid (PA). The prepared wood-derived hydrogel composite membranes can not only exhibit an obvious anisotropic structure and good mechanical properties but also sustainably release loaded drugs to obtain long-term biological activities. Creatively, PA can effectively improve the bioavailability of Cur; more importantly, Cur and PA play an obvious synergistic effect in antibacterial, anti-inflammatory, and osteogenic activities. Compared with the wood-derived hydrogel composite membranes without drug loading, as well as loaded with Cur or PA only, these loaded with Cur and PA are significantly more conducive to inhibiting the growth of bacteria and inflammatory response and facilitating the adhesion, proliferation, and osteogenic differentiation of bone marrow mesenchymal stem cells. This kind of anisotropic wood-derived hydrogel composite membrane with fantastic antibacterial, anti-inflammatory, and osteogenic activities is expected to be ideal artificial periostea.
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Affiliation(s)
- Jiaqing Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Jingsheng Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Zelin Zhu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Tianyi Sun
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Mingxian Liu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Lu Lu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Changren Zhou
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Binghong Luo
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
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65
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Gao X, Zhang Y, Wu Y, Nguyen TT, Wu J, Guo M, Du C. Inspired by Skeletal Muscles: Study of the Physical and Electrochemical Properties of Derived Lignocellulose-Based Carbon Fibers. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8068. [PMID: 36431557 PMCID: PMC9694132 DOI: 10.3390/ma15228068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/28/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Skeletal muscles exhibit excellent properties due to their well-developed microstructures. Taking inspiration from nature that thick filaments and thin filaments are linked by "cross-bridges", leading to good stability and ion transport performance of muscles. In this work, extracted poplar lignin and microcrystalline cellulose (MCC) were connected by biomimetic covalent bonds, akin to biological muscle tissue, in which isophorone diisocyanate was used as the chemical crosslinking agent. Then, poplar lignin-MCC was mixed with polyacrylonitrile to serve as the precursor for electrospinning. The results show that due to the effective covalent-bond connection, the precursor fibers possess excellent morphology, smooth surface, good thermal stability, and high flexibility and toughness (average elongation-at-break is 51.84%). Therefore, after thermal stabilization and carbonization, derived lignocellulose-based carbon fibers (CFs) with a reduced cost, complete fiber morphology with a uniform diameter (0.48 ± 0.22 μm), and high graphitization degree were obtained. Finally, the electrodes fabrication and electrochemical testing were carried out. The results of electrochemical impedance spectroscopy (EIS) indicate that the Rs and Rct values of CFs supercapacitors are 1.18 Ω and 0.14 Ω, respectively. Results of cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) suggest that these CFs demonstrate great application potential in electrochemical materials.
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Affiliation(s)
- Xing Gao
- College of Sports and Human Sciences, Post-Doctoral Mobile Research Station, Graduate School, Harbin Sport University, Harbin 150008, China
| | - Ying Zhang
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yueting Wu
- College of Sports and Human Sciences, Post-Doctoral Mobile Research Station, Graduate School, Harbin Sport University, Harbin 150008, China
| | - Tat Thang Nguyen
- College of Wood Industry and Interior Design, Vietnam National University of Forestry, Hanoi 156220, Vietnam
| | - Jie Wu
- College of Sports and Human Sciences, Post-Doctoral Mobile Research Station, Graduate School, Harbin Sport University, Harbin 150008, China
| | - Minghui Guo
- Key Laboratory of Bio-Based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Chunhua Du
- College of Sports and Human Sciences, Post-Doctoral Mobile Research Station, Graduate School, Harbin Sport University, Harbin 150008, China
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66
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Wang Z, Shu L, Zhang XF, Yao J. Double cross-linked wood hydrogels with high anisotropy and ionic conductivity for sensitive pressure sensing. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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67
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Ye W, Guo M, Li Q, Wang L, Zhao C, Xiang D, Lai J, Li H, Li Z, Wu Y. High strength, anti‐freezing, and conductive poly(vinyl alcohol)/urea ionic hydrogels as soft sensor. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenhao Ye
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
| | - Meiling Guo
- The Collaborative Innovation Center of Functional Materials and Devices, School of Materials and Environmental Engineering Chengdu Technological University Chengdu China
| | - Qing Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
| | - Li Wang
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Chuanxia Zhao
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Dong Xiang
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Jingjuan Lai
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Hui Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Zhenyu Li
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
| | - Yuanpeng Wu
- School of New Energy and Materials Southwest Petroleum University Chengdu China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Chengdu China
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, Sichuan Engineering Technology Research Center of Basalt Fiber Composites Development and Application Southwest Petroleum University Chengdu China
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68
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Hou Y, Ma S, Hao J, Lin C, Zhao J, Sui X. Construction and Ion Transport-Related Applications of the Hydrogel-Based Membrane with 3D Nanochannels. Polymers (Basel) 2022; 14:polym14194037. [PMID: 36235985 PMCID: PMC9571189 DOI: 10.3390/polym14194037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
Hydrogel is a type of crosslinked three-dimensional polymer network structure gel. It can swell and hold a large amount of water but does not dissolve. It is an excellent membrane material for ion transportation. As transport channels, the chemical structure of hydrogel can be regulated by molecular design, and its three-dimensional structure can be controlled according to the degree of crosslinking. In this review, our prime focus has been on ion transport-related applications based on hydrogel materials. We have briefly elaborated the origin and source of hydrogel materials and summarized the crosslinking mechanisms involved in matrix network construction and the different spatial network structures. Hydrogel structure and the remarkable performance features such as microporosity, ion carrying capability, water holding capacity, and responsiveness to stimuli such as pH, light, temperature, electricity, and magnetic field are discussed. Moreover, emphasis has been made on the application of hydrogels in water purification, energy storage, sensing, and salinity gradient energy conversion. Finally, the prospects and challenges related to hydrogel fabrication and applications are summarized.
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69
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Polysaccharides-based nanofibrils: From tissue engineering to biosensor applications. Carbohydr Polym 2022; 291:119670. [DOI: 10.1016/j.carbpol.2022.119670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/22/2022]
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70
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Recent Advances in Cellulose-Based Hydrogels for Tissue Engineering Applications. Polymers (Basel) 2022; 14:polym14163335. [PMID: 36015592 PMCID: PMC9415052 DOI: 10.3390/polym14163335] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 02/08/2023] Open
Abstract
In recent years, cellulose has attracted much attention because of its excellent properties, such as its hydrophilicity, mechanical properties, biodegradability, biocompatibility, low cost and low toxicity. In addition, cellulose and its derivatives contain abundant hydrophilic functional groups (such as hydroxyl, carboxyl and aldehyde groups), which are good raw materials for synthesizing biocompatible hydrogels. In this paper, the application prospects of cellulose and its derivatives-based hydrogels in biomedical tissue engineering are summarized and discussed through the analysis of recent research. Firstly, we discuss the structure and properties of cellulose, nano celluloses (NC) from different sources (including cellulose nanocrystals (CNC), cellulose nanofibrils (CNF) and bacterial nano celluloses (BNC)) and cellulose derivatives (including cellulose ethers and cellulose esters) obtained by different modification methods. Then, the properties and preparation methods of physical and chemical cellulose hydrogels are described, respectively. The application of cellulose-based hydrogels as a tissue engineering scaffold (skin, bone and cartilage) in the biomedical field is introduced. Finally, the challenges and prospects of cellulose-based hydrogels in tissue engineering are summarized.
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71
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Zhao Y, Cui J, Qiu X, Yan Y, Zhang Z, Fang K, Yang Y, Zhang X, Huang J. Manufacturing and post-engineering strategies of hydrogel actuators and sensors: From materials to interfaces. Adv Colloid Interface Sci 2022; 308:102749. [PMID: 36007285 DOI: 10.1016/j.cis.2022.102749] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/27/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022]
Abstract
Living bodies are made of numerous bio-sensors and actuators for perceiving external stimuli and making movement. Hydrogels have been considered as ideal candidates for manufacturing bio-sensors and actuators because of their excellent biocompatibility, similar mechanical and electrical properties to that of living organs. The key point of manufacturing hydrogel sensors/actuators is that the materials should not only possess excellent mechanical and electrical properties but also form effective interfacial connections with various substrates. Traditional hydrogel normally shows high electrical resistance (~ MΩ•cm) with limited mechanical strength (<1 MPa), and it is prone to fatigue fracture during continuous loading-unloading cycles. Just like iron should be toughened and hardened into steel, manufacturing and post-treatment processes are necessary for modifying hydrogels. Besides, advanced design and manufacturing strategies can build effective interfaces between sensors/actuators and other substrates, thus enhancing the desired mechanical and electrical performances. Although various literatures have reviewed the manufacture or modification of hydrogels, the summary regarding the post-treatment strategies and the creation of effective electrical and mechanically sustainable interfaces are still lacking. This paper aims at providing an overview of the following topics: (i) the manufacturing and post-engineering treatment of hydrogel sensors and actuators; (ii) the processes of creating sensor(actuator)-substrate interfaces; (iii) the development and innovation of hydrogel manufacturing and interface creation. In the first section, the manufacturing processes and the principles for post-engineering treatments are discussed, and some typical examples are also presented. In the second section, the studies of interfaces between hydrogels and various substrates are reviewed. Lastly, we summarize the current manufacturing processes of hydrogels, and provide potential perspectives for hydrogel manufacturing and post-treatment methods.
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Affiliation(s)
- Yiming Zhao
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Jiuyu Cui
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Xiaoyong Qiu
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Yonggan Yan
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Zekai Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Kezhong Fang
- Lunan Pharmaceutical Group Co., LTD, Linyi 276005, China
| | - Yu Yang
- National Engineering and Technology Research Center of Chirality Pharmaceutical, Linyi 276005, China
| | - Xiaolai Zhang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Jun Huang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, National Demonstration Center for Experimental Mechanical Engineering Education, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China.
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Super stretchability, strong adhesion, flexible sensor based on Fe3+ dynamic coordination sodium alginate/polyacrylamide dual-network hydrogel. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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73
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Ansari MJ, Rajendran RR, Mohanto S, Agarwal U, Panda K, Dhotre K, Manne R, Deepak A, Zafar A, Yasir M, Pramanik S. Poly( N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art. Gels 2022; 8:454. [PMID: 35877539 PMCID: PMC9323937 DOI: 10.3390/gels8070454] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 12/21/2022] Open
Abstract
A prominent research topic in contemporary advanced functional materials science is the production of smart materials based on polymers that may independently adjust their physical and/or chemical characteristics when subjected to external stimuli. Smart hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) demonstrate distinct thermoresponsive features close to a lower critical solution temperature (LCST) that enhance their capability in various biomedical applications such as drug delivery, tissue engineering, and wound dressings. Nevertheless, they have intrinsic shortcomings such as poor mechanical properties, limited loading capacity of actives, and poor biodegradability. Formulation of PNIPAM with diverse functional constituents to develop hydrogel composites is an efficient scheme to overcome these defects, which can significantly help for practicable application. This review reports on the latest developments in functional PNIPAM-based smart hydrogels for various biomedical applications. The first section describes the properties of PNIPAM-based hydrogels, followed by potential applications in diverse fields. Ultimately, this review summarizes the challenges and opportunities in this emerging area of research and development concerning this fascinating polymer-based system deep-rooted in chemistry and material science.
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Affiliation(s)
- Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Rahul R. Rajendran
- Department of Mechanical Engineering and Mechanics, Lehigh University, 19 Memorial Drive West, Bethlehem, PA 18015, USA;
| | - Sourav Mohanto
- Department of Pharmaceutics, Yenepoya Pharmacy College and Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, Karnataka, India;
| | - Unnati Agarwal
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar-Delhi, Grand Trunk Road, Phagwara 144001, Punjab, India;
| | - Kingshuk Panda
- Department of Applied Microbiology, Vellore Institute of Technology, School of Bioscience and Technology, Vellore 632014, Tamilnadu, India;
| | - Kishore Dhotre
- I.C.M.R.—National Institute of Virology, Pune 411021, Maharashtra, India;
| | - Ravi Manne
- Chemtex Environmental Lab, Quality Control and Assurance Department, 3082 25th Street, Port Arthur, TX 77642, USA;
| | - A. Deepak
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 600124, Tamil Nadu, India;
| | - Ameeduzzafar Zafar
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia; or
| | - Mohd Yasir
- Department of Pharmacy, College of Health Science, Arsi University, Asella 396, Ethiopia;
| | - Sheersha Pramanik
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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74
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Chen W, Zhang Z, Kouwer PHJ. Magnetically Driven Hierarchical Alignment in Biomimetic Fibrous Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203033. [PMID: 35665598 DOI: 10.1002/smll.202203033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Indexed: 06/15/2023]
Abstract
In vivo, natural biomaterials are frequently anisotropic, exhibiting directional microstructures and mechanical properties. It remains challenging to develop such anisotropy in synthetic materials. Here, a facile one-step approach for in situ fabrication of hydrogels with hierarchically anisotropic architectures and direction-dependent mechanical properties is proposed. The anisotropic hydrogels, composed of a fibrous gel network (0.1 wt%), cross-linked with magnetic nanoparticles (spheres, rods, and wires, <0.1 wt%) are readily formed in the presence of very low magnetic fields (<20 mT). The anisotropy of the nanoparticles is transduced to the polymer network, leading to macroscopic anisotropy, for instance, in mechanical properties. Electrostatic repulsion by the negatively charged nanoparticles induces an additional layer of order in the material, perpendicular to the magnetic field direction. The straightforward fabrication strategy allows for stepwise deposition of layers with different degrees or directions of anisotropy, which enables the formation of complex structures that are able to mimic some of the complex hierarchical architectures found in biology. It is anticipated that this approach of hydrogel alignment may serve as a guide for designing advanced biomaterials in tissue engineering.
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Affiliation(s)
- Wen Chen
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Zhaobao Zhang
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
| | - Paul H J Kouwer
- Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
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75
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Wang S, Yu L, Wang S, Zhang L, Chen L, Xu X, Song Z, Liu H, Chen C. Strong, tough, ionic conductive, and freezing-tolerant all-natural hydrogel enabled by cellulose-bentonite coordination interactions. Nat Commun 2022; 13:3408. [PMID: 35729107 PMCID: PMC9213515 DOI: 10.1038/s41467-022-30224-8] [Citation(s) in RCA: 87] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Ionic conductive hydrogels prepared from naturally abundant cellulose are ideal candidates for constructing flexible electronics from the perspective of commercialization and environmental sustainability. However, cellulosic hydrogels featuring both high mechanical strength and ionic conductivity remain extremely challenging to achieve because the ionic charge carriers tend to destroy the hydrogen-bonding network among cellulose. Here we propose a supramolecular engineering strategy to boost the mechanical performance and ionic conductivity of cellulosic hydrogels by incorporating bentonite (BT) via the strong cellulose-BT coordination interaction and the ion regulation capability of the nanoconfined cellulose-BT intercalated nanostructure. A strong (compressive strength up to 3.2 MPa), tough (fracture energy up to 0.45 MJ m−3), yet highly ionic conductive and freezing tolerant (high ionic conductivities of 89.9 and 25.8 mS cm−1 at 25 and −20 °C, respectively) all-natural cellulose-BT hydrogel is successfully realized. These findings open up new perspectives for the design of cellulosic hydrogels and beyond. Cellulose based ion conductive hydrogels are emerging materials for application in flexible electronics but achieving simultaneously high conductivity and good mechanical properties remains challenging. Here, the authors propose a supramolecular engineering strategy to strengthen cellulosic hydrogel and to improve simultaneously its ionic conductivity and freezing tolerance.
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Affiliation(s)
- Siheng Wang
- Jiangsu Key Laboratory of Biomass Energy and Material, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, 210042, Nanjing, China.,Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, China.,Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
| | - Le Yu
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, China
| | - Shanshan Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
| | - Lei Zhang
- Jiangsu Key Laboratory of Biomass Energy and Material, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, 210042, Nanjing, China
| | - Lu Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, China
| | - Xu Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, 210037, Nanjing, China
| | - Zhanqian Song
- Jiangsu Key Laboratory of Biomass Energy and Material, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, 210042, Nanjing, China
| | - He Liu
- Jiangsu Key Laboratory of Biomass Energy and Material, Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, 210042, Nanjing, China.
| | - Chaoji Chen
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, China.
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76
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Dai B, Cui T, Xu Y, Wu S, Li Y, Wang W, Liu S, Tang J, Tang L. Smart Antifreeze Hydrogels with Abundant Hydrogen Bonding for Conductive Flexible Sensors. Gels 2022; 8:gels8060374. [PMID: 35735718 PMCID: PMC9223130 DOI: 10.3390/gels8060374] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 01/21/2023] Open
Abstract
Recently, flexible sensors based on conductive hydrogels have been widely used in human health monitoring, human movement detection and soft robotics due to their excellent flexibility, high water content, good biocompatibility. However, traditional conductive hydrogels tend to freeze and lose their flexibility at low temperature, which greatly limits their application in a low temperature environment. Herein, according to the mechanism that multi−hydrogen bonds can inhibit ice crystal formation by forming hydrogen bonds with water molecules, we used butanediol (BD) and N−hydroxyethyl acrylamide (HEAA) monomer with a multi−hydrogen bond structure to construct LiCl/p(HEAA−co−BD) conductive hydrogel with antifreeze property. The results indicated that the prepared LiCl/p(HEAA−co−BD) conductive hydrogel showed excellent antifreeze property with a low freeze point of −85.6 °C. Therefore, even at −40 °C, the hydrogel can still stretch up to 400% with a tensile stress of ~450 KPa. Moreover, the hydrogel exhibited repeatable adhesion property (~30 KPa), which was attributed to the existence of multiple hydrogen bonds. Furthermore, a simple flexible sensor was fabricated by using LiCl/p(HEAA−co−BD) conductive hydrogel to detect compression and stretching responses. The sensor had excellent sensitivity and could monitor human body movement.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Li Tang
- Correspondence: (J.T.); (L.T.)
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77
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Zhu Q, Hong Y, Huang Y, Zhang Y, Xie C, Liang R, Li C, Zhang T, Wu H, Ye J, Zhang X, Zhang S, Zou X, Ouyang H. Polyglutamic Acid-Based Elastic and Tough Adhesive Patch Promotes Tissue Regeneration through In Situ Macrophage Modulation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2106115. [PMID: 35396785 PMCID: PMC9189670 DOI: 10.1002/advs.202106115] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/20/2022] [Indexed: 05/08/2023]
Abstract
Adhesive patches are advanced but challenging alternatives to suture, especially in treating fragile internal organs. So far there is no suture-free adhesive patch based on metabolizable poly(amino acid) materials with excellent mechanical strength as well as immunomodulation functionality. Here, a polyglutamic acid-based elastic and tough adhesive patch modified by photosensitive groups on the surface to achieve robust light-activated adhesion and sealing of flexible internal organs is explored. With the porous internal morphology and excellent biodegradability, the patches promote regeneration through a macrophage-regulating microenvironment. Treated rabbits achieve rapid full-thickness gastric regeneration with complete functional structure within 14 d, suggesting its robust tissue adhesion and repair-promoting ability.
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78
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Shen J, Du S, Xu Z, Gan T, Handschuh-Wang S, Zhang X. Anti-Freezing, Non-Drying, Localized Stiffening, and Shape-Morphing Organohydrogels. Gels 2022; 8:gels8060331. [PMID: 35735675 PMCID: PMC9222875 DOI: 10.3390/gels8060331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/15/2022] [Accepted: 05/19/2022] [Indexed: 11/16/2022] Open
Abstract
Artificial shape-morphing hydrogels are emerging toward various applications, spanning from electronic skins to healthcare. However, the low freezing and drying tolerance of hydrogels hinder their practical applications in challenging environments, such as subzero temperatures and arid conditions. Herein, we report on a shape-morphing system of tough organohydrogels enabled by the spatially encoded rigid structures and its applications in conformal packaging of “island–bridge” stretchable electronics. To validate this method, programmable shape morphing of Fe (III) ion-stiffened Ca-alginate/polyacrylamide (PAAm) tough organohydrogels down to −50 °C, with long-term preservation of their 3D shapes at arid or even vacuum conditions, was successfully demonstrated, respectively. To further illustrate the potency of this approach, the as-made organohydrogels were employed as a material for the conformal packaging of non-stretchable rigid electronic components and highly stretchable liquid metal (galinstan) conductors, forming a so-called “island–bridge” stretchable circuit. The conformal packaging well addresses the mechanical mismatch between components with different elastic moduli. As such, the as-made stretchable shape-morphing device exhibits a remarkably high mechanical durability that can withstand strains as high as 1000% and possesses long-term stability required for applications under challenging conditions.
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Affiliation(s)
- Jiayan Shen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
| | - Shutong Du
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
| | - Ziyao Xu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
| | - Tiansheng Gan
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
| | - Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
| | - Xueli Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; (J.S.); (S.D.); (Z.X.); (T.G.); (S.H.-W.)
- Correspondence: ; Tel.: +86-755-26557377
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79
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Yu Y, Kong K, Tang R, Liu Z. A Bioinspired Ultratough Composite Produced by Integration of Inorganic Ionic Oligomers within Polymer Networks. ACS NANO 2022; 16:7926-7936. [PMID: 35482415 DOI: 10.1021/acsnano.2c00663] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The nacre-inspired laminates are promising materials for their excellent mechanics. However, the interfacial defects between organic-inorganic phases commonly lead to the crack propagation and fracture failure of these materials under stress. A natural biomineral, bone, has much higher bending toughness than the nacre. The small size of inorganic building units in bone improves the organic-inorganic interaction, which optimizes the material toughness. Inspired by these biological structures, here, an ultratough nanocomposite laminate is prepared by the integration of ultrasmall calcium phosphate oligomers (CPO, 1 nm in diameter) within poly(vinyl alcohol) (PVA) and sodium alginate (Alg) networks through a simple three-step strategy. Owing to the small size of inorganic building units, strong multiple molecular interactions within integrated organic-inorganic hierarchical structure are built. The resulting laminates exhibit ultrahigh bending strain (>50% without fracture) and toughness (21.5-31.0 MJ m-3), which surpass natural nacre and almost all of the synthetic laminate materials that have been reported so far. Moreover, the mechanics of this laminate is tunable by changing the water content within the bulk structure. This work provides a way for the development of organic-inorganic nanocomposites with ultrahigh bending toughness by using inorganic ionic oligomers, which can be useful in the fields of tough protective materials and energy absorbing materials.
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Affiliation(s)
- Yadong Yu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, Zhejiang 311215, China
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Kangren Kong
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
- State Key Laboratory for Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Zhaoming Liu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
- State Key Laboratory for Silicon Materials, Zhejiang University, Hangzhou, Zhejiang 310027, China
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80
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A Highly Sensitive, Ultra-Durable, Eco-Friendly Ionic Skin for Human Motion Monitoring. Polymers (Basel) 2022; 14:polym14091902. [PMID: 35567071 PMCID: PMC9101320 DOI: 10.3390/polym14091902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 11/24/2022] Open
Abstract
Ionic conductive hydrogels have shown great potential in areas such as wearable devices and electronic skins. Aiming at the sensitivity and biodegradability of the traditional flexible hydrogel electronic skin, this paper developed an ionic skin (S−iSkin) based on edible starch–sodium alginate (starch–SA), which can convert the external strain stimulus into a voltage signal without an external power supply. As an excellent ion conductive polymer, S−iSkin exhibited good stretchability, low hydrophilicity and outstanding electrochemical and sensing properties. Driven by sodium ions, the ion charge transfer resistance of S−iSkin is reduced by 4 times, the capacitance value is increased by 2 times and its conductivity is increased by 7 times. Additionally, S−iSkin has excellent sensitivity and linearity (R2 = 0.998), a long service life and good biocompatibility. Under the action of micro-stress, it can produce a voltage change ratio of 2.6 times, and its sensitivity is 52.04. The service life test showed that it can work stably for 2000 s and work more than 200 stress–voltage response cycles. These findings provide a foundation for the development of health monitoring systems and micro-stress sensing devices based on renewable biomass materials.
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81
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Poly(N-isopropylacrylamide) Based Electrically Conductive Hydrogels and Their Applications. Gels 2022; 8:gels8050280. [PMID: 35621578 PMCID: PMC9142127 DOI: 10.3390/gels8050280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 02/01/2023] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) based electrically conductive hydrogels (PNIPAM-ECHs) have been extensively studied in recent decades due to their thermal-responsive (leading to the volume change of hydrogels) and electrically conductive performance. The incorporation of conductive components into the PNIPAM hydrogel network makes it become conductive hydrogel, and as a result, the PNIPAM hydrogel could become sensitive to an electrical signal, greatly expanding its application. In addition, conductive components usually bring new stimuli-responsive properties of PNIPAM-based hydrogels, such as near-infrared light and stress/strain responsive properties. PNIPAM-ECHs display a wide range of applications in human motion detection, actuators, controlled drug release, wound dressings, etc. To summarize recent research advances and achievements related to PNIPAM-ECHs, this manuscript first reviews the design and structure of representative PNIPAM-ECHs according to their conductive components. Then, the applications of PNIPAM-ECHs have been classified and discussed. Finally, the remaining problems related to PNIPAM-ECHs have been summarized and a future research direction is proposed which is to fabricate PNIPAM-ECHs with integrated multifunctionality.
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82
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Dou H, Xu M, Zheng Y, Li Z, Wen G, Zhang Z, Yang L, Ma Q, Yu A, Luo D, Wang X, Chen Z. Bioinspired Tough Solid-State Electrolyte for Flexible Ultralong-Life Zinc-Air Battery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110585. [PMID: 35316552 DOI: 10.1002/adma.202110585] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/26/2022] [Indexed: 06/14/2023]
Abstract
Manufacturing advanced solid-state electrolytes (SSEs) for flexible rechargeable batteries becomes increasingly important but remains grand challenge. The sophisticated structure of robust animal dermis and good water-retention of plant cell in nature grant germane inspirations for designing high-performance SSEs. Herein, tough bioinspired SSEs with intrinsic hydroxide ion (OH- ) conduction are constructed by in situ formation of OH- conductive ionomer network within a hollow-polymeric-microcapsule-decorated hydrogel polymer network. By virtue of the bioinspired design and dynamic dual-penetrating network structure, the bioinspired SSEs simultaneously obtain mechanical robustness with 1800% stretchability, good water uptake of 107 g g-1 and water retention, and superhigh ion conductivity of 215 mS cm-1 . The nanostructure of bioinspired SSE and related ion-conduction mechanism are revealed and visualized by molecular dynamics simulation, where plenty of compact and superfast ion-transport channels are constructed, contributing to superhigh ion conductivity. As a result, the flexible solid-state zinc-air batteries assembled with bioinspired SSEs witness high power density of 148 mW cm-2 , specific capacity of 758 mAh g-1 and ultralong cycling stability of 320 h as well as outstanding flexibility. The bioinspired methodology and deep insight of ion-conduction mechanism will shed light on the design of advanced SSEs for flexible energy conversion and storage systems.
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Affiliation(s)
- Haozhen Dou
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Mi Xu
- South China Academy of Advanced Optoelectronics & International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Yun Zheng
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Zhaoqiang Li
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Guobin Wen
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Zhen Zhang
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Leixin Yang
- South China Academy of Advanced Optoelectronics & International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Qianyi Ma
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Aiping Yu
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Dan Luo
- South China Academy of Advanced Optoelectronics & International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Xin Wang
- South China Academy of Advanced Optoelectronics & International Academy of Optoelectronics at Zhaoqing, South China Normal University, Guangzhou, 510006, China
| | - Zhongwei Chen
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
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83
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Chen Y, Hao Y, Mensah A, Lv P, Wei Q. Bio-inspired hydrogels with fibrous structure: A review on design and biomedical applications. BIOMATERIALS ADVANCES 2022; 136:212799. [PMID: 35929334 DOI: 10.1016/j.bioadv.2022.212799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/06/2022] [Accepted: 04/08/2022] [Indexed: 10/18/2022]
Abstract
Numerous tissues in the human body have fibrous structures, including the extracellular matrix, muscles, and heart, which perform critical biological functions and have exceptional mechanical strength. Due to their high-water content, softness, biocompatibility and elastic nature, hydrogels resemble biological tissues. Traditional hydrogels, on the other hand, have weak mechanical properties and lack tissue-like fibrous structures, limiting their potential applications. Thus, bio-inspired hydrogels with fibrous architectures have piqued the curiosity of biomedical researchers. Here, we review fabrication strategies for fibrous hydrogels and their recent progress in the biomedical fields of wound dressings, drug delivery, tissue engineering scaffolds and bioadhesives. Challenges and future perspectives are also discussed.
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Affiliation(s)
- Yajun Chen
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Yi Hao
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Alfred Mensah
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Pengfei Lv
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, People's Republic of China.
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84
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Ma Y, Liu K, Lao L, Li X, Zhang Z, Lu S, Li Y, Li Z. A stretchable, self-healing, okra polysaccharide-based hydrogel for fast-response and ultra-sensitive strain sensors. Int J Biol Macromol 2022; 205:491-499. [PMID: 35182565 DOI: 10.1016/j.ijbiomac.2022.02.065] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/25/2022] [Accepted: 02/12/2022] [Indexed: 12/22/2022]
Abstract
Self-healing conductive hydrogels have attracted widespread attention as a new generation of smart wearable devices and human motion monitoring sensors. To improve the biocompatibility and degradability of such strain sensors, we report a sensor with a sandwich structure based on a biomucopolysaccharide hydrogel. The sensor was constructed with a stretchable self-healing hydrogel composed of polyvinyl alcohol (PVA), okra polysaccharide (OP), borax, and a conductive layer of silver nanowires. The obtained OP/PVA/borax hydrogel exhibited excellent stretchability (~1073.7%) and self-healing ability (93.6% within 5 min), and the resultant hydrogel-based strain sensor demonstrated high sensitivity (gauge factor = 6.34), short response time (~20 ms), and good working stability. This study provides innovative ideas for the development of biopolysaccharide hydrogels for applications in the field of sensors.
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Affiliation(s)
- Yinghui Ma
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Kuo Liu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Li Lao
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Xing Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Zuocai Zhang
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China.
| | - Yuqi Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China.
| | - Ziwei Li
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China.
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85
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Park M, Chun Y, Kim S, Sohn KY, Jeon M. Effects of Hexagonal Boron Nitride Insulating Layers on the Driving Performance of Ionic Electroactive Polymer Actuators for Light-Weight Artificial Muscles. Int J Mol Sci 2022; 23:4981. [PMID: 35563372 PMCID: PMC9101070 DOI: 10.3390/ijms23094981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/28/2022] [Accepted: 04/28/2022] [Indexed: 12/07/2022] Open
Abstract
To improve the energy efficiency and driving performance of ionic electroactive polymer actuators, we propose inserting insulating layers of 170 nm hexagonal boron nitride (h-BN) particles between the ionic polymer membrane and electrodes. In experiments, actuators exhibited better capacitance (4.020 × 10-1 F), displacement (6.01 mm), and curvature (35.59 m-1) with such layers than without them. The excellent insulating properties and uniform morphology of the layers reduced the interfacial resistance, and the ion conductivity (0.071 S m-1) within the ionic polymer improved significantly. Durability was enhanced because the h-BN layer is chemically and thermally stable and efficiently blocks heat diffusion and ion hydrate evaporation during operation. The results demonstrate a close relationship between the capacitance and driving performance of actuators. A gripper prepared from the proposed ionic electroactive polymer actuator can stably hold an object even under strong external vibration and fast or slow movement.
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Affiliation(s)
- Minjeong Park
- Department of Nanoscience and Engineering, Center for Nano Manufacturing, Inje University, Gimhae 50834, Korea;
| | - Youngjae Chun
- Department of Industrial Engineering, Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA;
| | - Seonpil Kim
- Department of Military Information Science, Gyeongju University, Gyeongju 38065, Korea;
| | - Keun Yong Sohn
- Department of Nanoscience and Engineering, Center for Nano Manufacturing, Inje University, Gimhae 50834, Korea;
| | - Minhyon Jeon
- Department of Nanoscience and Engineering, Center for Nano Manufacturing, Inje University, Gimhae 50834, Korea;
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86
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Wu L, He Y, Mao H, Gu Z. Bioactive hydrogels based on polysaccharides and peptides for soft tissue wound management. J Mater Chem B 2022; 10:7148-7160. [PMID: 35475512 DOI: 10.1039/d2tb00591c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Due to their inherent and tunable biomechanical and biochemical performances, bioactive hydrogels based on polysaccharides and peptides have shown attractive potential for wound management. In this review, the recent progress of bioactive hydrogels prepared by polysaccharides and peptides for soft tissue wound management is overviewed. Meanwhile, we focus on the elaboration of the relationship between chemical structures and inherent bioactive functions of polysaccharides and peptides, as well as the strategies that are taken for achieving multiple wound repairing effects including hemostasis, adhesion, wound contraction and closure, anti-bacteria, anti-oxidation, immunomodulation, molecule delivery, etc. Some innovative and important works are well introduced as well. In the end, current study limitations, clinical unmet needs, and future directions are discussed.
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Affiliation(s)
- Lihuang Wu
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Yiyan He
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Hongli Mao
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Zhongwei Gu
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
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87
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Yan G, He S, Chen G, Ma S, Zeng A, Chen B, Yang S, Tang X, Sun Y, Xu F, Lin L, Zeng X. Highly Flexible and Broad-Range Mechanically Tunable All-Wood Hydrogels with Nanoscale Channels via the Hofmeister Effect for Human Motion Monitoring. NANO-MICRO LETTERS 2022; 14:84. [PMID: 35348885 PMCID: PMC8964865 DOI: 10.1007/s40820-022-00827-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/22/2022] [Indexed: 05/12/2023]
Abstract
Wood-based hydrogel with a unique anisotropic structure is an attractive soft material, but the presence of rigid crystalline cellulose in natural wood makes the hydrogel less flexible. In this study, an all-wood hydrogel was constructed by cross-linking cellulose fibers, polyvinyl alcohol (PVA) chains, and lignin molecules through the Hofmeister effect. The all-wood hydrogel shows a high tensile strength of 36.5 MPa and a strain up to ~ 438% in the longitudinal direction, which is much higher than its tensile strength (~ 2.6 MPa) and strain (~ 198%) in the radial direction, respectively. The high mechanical strength of all-wood hydrogels is mainly attributed to the strong hydrogen bonding, physical entanglement, and van der Waals forces between lignin molecules, cellulose nanofibers, and PVA chains. Thanks to its excellent flexibility, good conductivity, and sensitivity, the all-wood hydrogel can accurately distinguish diverse macroscale or subtle human movements, including finger flexion, pulse, and swallowing behavior. In particular, when "An Qi" was called four times within 15 s, two variations of the pronunciation could be identified. With recyclable, biodegradable, and adjustable mechanical properties, the all-wood hydrogel is a multifunctional soft material with promising applications, such as human motion monitoring, tissue engineering, and robotics materials.
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Affiliation(s)
- Guihua Yan
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Shuaiming He
- State Key Laboratory of Pulp and Paper-Making Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China.
| | - Gaofeng Chen
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Sen Ma
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Anqi Zeng
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Binglin Chen
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Shuliang Yang
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Xing Tang
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Yong Sun
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China
| | - Feng Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, No. 35, Tsinghua East Road, Haidian, Beijing, 100083, People's Republic of China
| | - Lu Lin
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China.
| | - Xianhai Zeng
- College of Energy, Xiamen University, Xiamen, 361102, People's Republic of China.
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88
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Gao Z, Sun Z, Ahmad M, Liu Y, Wei H, Wang S, Jin Y. Increased ion transport and high-efficient osmotic energy conversion through aqueous stable graphitic carbon nitride/cellulose nanofiber composite membrane. Carbohydr Polym 2022; 280:119023. [PMID: 35027125 DOI: 10.1016/j.carbpol.2021.119023] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/29/2021] [Accepted: 12/13/2021] [Indexed: 01/24/2023]
Abstract
Increased attention has evoked on the utilization of renewable energy, particularly osmotic power as a potential solution to the energy crisis and environmental pollution. Herein, we fabricate graphitic carbon nitride (g-C3N4)/cellulose nanofiber (CNF) composite membranes with tailored lamellar nanochannels for capturing osmotic energy from salinity gradients. Composite membranes exhibiting charge-governed ion conductivity were prepared via co-homogenization of g-C3N4 with CNF and vacuum filtration. Ion conductivity was efficiently modulated by fine-tuning the charge density through controlling the weight content of CNF in the composite membranes. Higher ion conductivity of 0.014 S cm-1 at low concentrations (<10-2 M KCl) was achieved due to the increased charge density of the lamellar nanochannels and the excellent aqueous stability of the membranes. We demonstrate the potential of the composite membranes in nanofluidic osmotic energy conversion, displaying thermo-enhanced power output performance. This work could inspire new designs of cellulose-based nanofluidic devices for improved osmotic energy conversion.
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Affiliation(s)
- Zongxia Gao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Zhe Sun
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Mehraj Ahmad
- Department of Food Science and Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, China
| | - Yuqian Liu
- Department of Food Science and Engineering, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials and Provincial Key Lab of Pulp and Paper Sci & Tech, Nanjing Forestry University, Nanjing 210037, China
| | - Haiying Wei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Sha Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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89
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Wang M, Zhang P, Shamsi M, Thelen JL, Qian W, Truong VK, Ma J, Hu J, Dickey MD. Tough and stretchable ionogels by in situ phase separation. NATURE MATERIALS 2022; 21:359-365. [PMID: 35190655 DOI: 10.1038/s41563-022-01195-4] [Citation(s) in RCA: 133] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 01/03/2022] [Indexed: 05/28/2023]
Abstract
Ionogels are compelling materials for technological devices due to their excellent ionic conductivity, thermal and electrochemical stability, and non-volatility. However, most existing ionogels suffer from low strength and toughness. Here, we report a simple one-step method to achieve ultra-tough and stretchable ionogels by randomly copolymerizing two common monomers with distinct solubility of the corresponding polymers in an ionic liquid. Copolymerization of acrylamide and acrylic acid in 1-ethyl-3-methylimidazolium ethyl sulfate results in a macroscopically homogeneous covalent network with in situ phase separation: a polymer-rich phase with hydrogen bonds that dissipate energy and toughen the ionogel; and an elastic solvent-rich phase that enables for large strain. These ionogels have high fracture strength (12.6 MPa), fracture energy (~24 kJ m-2) and Young's modulus (46.5 MPa), while being highly stretchable (~600% strain) and having self-healing and shape-memory properties. This concept can be applied to other monomers and ionic liquids, offering a promising way to tune ionogel microstructure and properties in situ during one-step polymerization.
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Affiliation(s)
- Meixiang Wang
- State Key Laboratory for Strength and Vibration of Mechanical Structures, International Center for Applied Mechanics, Department of Engineering Mechanics, Xi'an Jiaotong University, Xi'an, China
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Pengyao Zhang
- State Key Laboratory for Strength and Vibration of Mechanical Structures, International Center for Applied Mechanics, Department of Engineering Mechanics, Xi'an Jiaotong University, Xi'an, China
| | - Mohammad Shamsi
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Jacob L Thelen
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Wen Qian
- Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Vi Khanh Truong
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
- School of Science, STEM College, RMIT University, Melbourne, Victoria, Australia
| | - Jinwoo Ma
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Jian Hu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, International Center for Applied Mechanics, Department of Engineering Mechanics, Xi'an Jiaotong University, Xi'an, China.
| | - Michael D Dickey
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
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90
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Heedy S, Pineda JJ, Meli VS, Wang SW, Yee AF. Nanopillar Templating Augments the Stiffness and Strength in Biopolymer Films. ACS NANO 2022; 16:3311-3322. [PMID: 35080856 DOI: 10.1021/acsnano.1c11378] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Natural load-bearing mammalian tissues, such as cartilage and ligaments, contain ∼70% water yet can be mechanically stiff and strong due to the highly templated structures within. Here, we present a bioinspired approach to significantly stiffen and strengthen biopolymer hydrogels and films through the combination of nanoscale architecture and templated microstructure. Imprinted submicrometer pillar arrays absorb energy and deflect cracks. The produced chitosan hydrogels show nanofiber chains aligned by nanopillar topography, subsequently templating the microstructure throughout the film. These templated nanopillar chitosan hydrogels mechanically outperform unstructured flat hydrogels, with increases in the moduli of ∼160%, up to ∼20 MPa, and work at break of ∼450%, up to 8.5 MJ m-3. Furthermore, the strength at break increases by ∼350%, up to ∼37 MPa, and it is one of the strongest hydrogels yet reported. The nanopillar templating strategy is generalizable to other biopolymers capable of forming oriented domains and strong interactions. Overall, this process yields hydrogel films that demonstrate mechanical performance comparable to that of other stiff, strong hydrogels and natural tissues.
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Affiliation(s)
- Sara Heedy
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Juviarelli J Pineda
- Department of Materials Science and Engineering, University of California, Irvine, California 92697, United States
| | - Vijaykumar S Meli
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Albert F Yee
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
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91
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Luan Q, Zhang H, Chen C, Jiang F, Yao Y, Deng Q, Zeng K, Tang H, Huang F. Controlled Nutrient Delivery through a pH-Responsive Wood Vehicle. ACS NANO 2022; 16:2198-2208. [PMID: 35142211 DOI: 10.1021/acsnano.1c08244] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To lower the risk of disease and improve health, many nutrients benefit from intestinal-targeted delivery. Here, we present a nutrient-delivery system based on a pH-responsive "wood scroll", in which nutrients are stored, protected, and controllably released through the rolled structure and natural microchannels of a flexible wood substrate, thus ensuring higher bioactivity as well as prolonged steady release of the nutrient load to the intestine. We loaded the wood's natural microchannels with probiotics as a proof-of-concept demonstration. The probiotic-loaded wood scrolls can survive the simulated conditions of the stomach with a high survival rate (95.40%) and exhibit prolonged release (8 h) of the probiotic load at a constant release rate (4.17 × 108 CFUs/h) in the simulated conditions of the intestine. Moreover, by modifying the macroscopic geometry and microstructures of the wood scrolls, both the nutrient loading and release behaviors can be tuned over a wide range for customized or personalized nutrient management. The wood scrolls can also deliver other types of nutrients, as we demonstrate for tea polyphenols and rapeseed oil. This wood scroll design illustrates a promising structurally controlled strategy for the delivery of enteric nutrients using readily available, low-cost, and biocompatible biomass materials that have a naturally porous structure for nutrient storage, protection, and controlled release.
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Affiliation(s)
- Qian Luan
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Hao Zhang
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Chaoji Chen
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Feng Jiang
- Sustainable Functional Biomaterials Laboratory, Department of Wood Science, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Yonggang Yao
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qianchun Deng
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Kaizhu Zeng
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hu Tang
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Fenghong Huang
- Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China
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92
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Zong S, Wen H, Lv H, Li T, Tang R, Liu L, Jiang J, Wang S, Duan J. Intelligent hydrogel with both redox and thermo-response based on cellulose nanofiber for controlled drug delivery. Carbohydr Polym 2022; 278:118943. [PMID: 34973761 DOI: 10.1016/j.carbpol.2021.118943] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 01/14/2023]
Abstract
The purpose of this study is to develop a hydrogel with temperature and redox response to control drug delivery. However, the strength of temperature sensitive N-isopropylacrylamide (NIPAM) hydrogel is weak. Therefore, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized cellulose nanofiber (CNF) is introduced to improve this problem. The compressive strength of hydrogels increased by 360% after CNF addition. Meanwhile, N,N'-bis(acryloyl)cystamine (BACy) is introduced into the hydrogels as a cross-linker, imparting redox responsive properties to the hydrogels. Tumor therapeutic drugs are used as model drugs for in vitro release studies. The drug release rate of hydrogel is regulated by temperature and reducing environment. The maximum cumulative release rate of doxorubicin (DOX) is 39.56%, and the Berberine (BBR) is 99.50% after 60 h. The swelling and transparency of hydrogels showed dramatic changes in the range of 30-40 °C. Cytotoxicity experiments demonstrated that the hydrogel had almost no cytotoxicity.
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Affiliation(s)
- Shiyu Zong
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Hankang Wen
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Hui Lv
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Tong Li
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Ruilin Tang
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Liujun Liu
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Jianxin Jiang
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China
| | - Shengpeng Wang
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Jiufang Duan
- MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China.
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93
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Wu X, Pi W, Hu X, He X, Zhu Y, Wang J, Yang S. Heat- and freeze-tolerant organohydrogel with enhanced ionic conductivity over a wide temperature range for highly mechanoresponsive smart paint. J Colloid Interface Sci 2022; 608:2158-2168. [PMID: 34773850 DOI: 10.1016/j.jcis.2021.10.097] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/10/2021] [Accepted: 10/17/2021] [Indexed: 11/19/2022]
Abstract
Binary solvent-based fabrication permits the conductive organohydrogel to function well at low-temperature environments. However, the deep cryogenic and high temperatures are still threatening the performance of conductive organohydrogels in the application of stretchable electronics, biosensors, and intelligent coatings. Here, a radically new method is developed to introduce propylene and carbonate cellulose nanofibrils into freeze tolerance polymer matrix, and fabricate an antifreezing/antiheating organohydrogel integrated a high mechanical strength (1.6 MPa) and high level of ionic conductivity (4.2 S cm-1) over a wide temperature range (-40 to 100 °C). In this designed system, the propylene carbonate with low freezing point and high boiling point was shown to enhance antifreezing (-40 °C) and antiheating (100 °C) performance of organohydrogel. Furthermore, negative charge-rich cellulose nanofibrils (CNFs) were served as an ion transport channel and nanoreinforcements to boost the conductive and mechanical properties of the organohydrogel. In particular, Molecular Dynamics (MD) simulations reveal that propylene carbonate with high dielectric constant is capable of generating ion migration-facilitated effects, enabling the high ionic conductivity of organohydrogel. Tapping into these attributes, potential applications in mechanoresponsive smart coating have been demonstrated utilizing the appealing organohydrogel as a paint, rendering unprecedented protection and monitoring performance.
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Affiliation(s)
- Xianzhang Wu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wenjian Pi
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xunxiang Hu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiu He
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Yuan Zhu
- Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Jinqing Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Shengrong Yang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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94
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Zhao G, Feng Y, Xue L, Cui M, Zhang Q, Xu F, Peng N, Jiang Z, Gao D, Zhang X. Anisotropic conductive reduced graphene oxide/silk matrices promote post-infarction myocardial function by restoring electrical integrity. Acta Biomater 2022; 139:190-203. [PMID: 33836222 DOI: 10.1016/j.actbio.2021.03.073] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 02/07/2023]
Abstract
Myocardial infarction (MI) remains the leading cause of death globally, often leading to impaired cardiac function and pathological myocardial microenvironment. Electrical conduction abnormalities of the infarcted myocardium not only induce adverse myocardial remodeling but also prevent tissue repair. Restoring the myocardial electrical integrity, particularly the anisotropic electrical signal propagation within the injured area after infarction is crucial for an effective function recovery. Herein, optimized reduced graphene oxide (rGO) functionalized electrospun silk fibroin (rGO/silk) biomaterials presenting anisotropic conductivity and enhanced suturablity were developed and investigated as cardiac patches for their potential in improving the post-MI myocardial function of rat models. The results show that the anisotropic conductive rGO/silk patches exhibit remarkable therapeutic effect on repairing the infarcted myocardium compared to the nonconductive silk and isotropic conductive rGO/silk patches as determined by the enhanced pumping function, reduced susceptibility to arrhythmias, thickened left ventricular walls and improved survival of functional cardiomyocytes. Their notable effect on promoting the angiogenesis of capillaries in the infarcted myocardium has also been demonstrated. This study highlights an effective and biomimetic reconstruction of the electrical myocardial microenvironment based on the anisotropic conductive rGO/silk biomaterials as a promising option for promoting the repair of infarcted myocardium. STATEMENT OF SIGNIFICANCE: The dysfunctional electrical microenvironment in the infarcted myocardium not only aggravates the adverse myocardial remodeling but also limits the effect of cardiac regenerative medicine. Although various conductive biomaterials have been employed to restore the electrical network in the infarcted myocardium in vivo, the anisotropic nature of the myocardial electrical microenvironment which enables directional electrical signal propagation were neglected. In this study, an anisotropic conductive rGO/silk biomaterial system is developed to improve the myocardial function post infarction by restoring the anisotropic electrical microenvironment in the infarcted myocardium. The promoted effects of anisotropic conductive grafts on repairing infarcted hearts are demonstrated with improved pumping function, cardiomyocyte survival, resistance to ventricular fibrillation, and angiogenesis of capillary network.
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Affiliation(s)
- Guoxu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, PR China; School of Material Science and Chemical Engineering, Xi'an Technological University, Xi'an 710021, Shaanxi, PR China
| | - Yanjing Feng
- Department of Cardiology, The Second Affiliated Hospital, School of Medical, Xi'an Jiaotong University, Xi'an 710004, Shaanxi, PR China
| | - Li Xue
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, PR China
| | - Mengjie Cui
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, PR China
| | - Qi Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, PR China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Bioinspired Engineering and Biomechanics Center (BEBC), School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Niancai Peng
- International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Zhuangde Jiang
- International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, State Key Laboratory for Manufacturing Systems Engineering, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, PR China
| | - Dengfeng Gao
- Department of Cardiology, The Second Affiliated Hospital, School of Medical, Xi'an Jiaotong University, Xi'an 710004, Shaanxi, PR China.
| | - Xiaohui Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-end Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, PR China.
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95
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Park N, Kim J. Anisotropic Hydrogels with a Multiscale Hierarchical Structure Exhibiting High Strength and Toughness for Mimicking Tendons. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4479-4489. [PMID: 34969247 DOI: 10.1021/acsami.1c18989] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to their anisotropic and hierarchical structure, tendons exhibit an outstanding mechanical performance despite the low polymer concentration and softness of the constituent materials. Here, we propose a tendon-mimicking, strong, and tough hydrogel with a multiscale hierarchical and anisotropic structure. An isotropic, precursor double-network hydrogel is transformed into an anisotropic hydrogel by stretching, solvent exchange, and subsequent fixation via ionic crosslinking. Solvent exchange induces densification of the stretched polymer network, enhancement of linear alignment of polymer chains, and microphase separation, leading to anisotropic toughening of the hydrogel. The resulting anisotropic hydrogels show high strength and toughness, which vary over a wide range (1.2-3.3 MPa of strength and 4.9-8.8 MJ/m3 of toughness, respectively), controlled by the degree of pre-stretching. Furthermore, a hierarchical architecture is constructed by braiding the anisotropic hydrogel strands into a rope, resulting in an improved mechanical performance (4.7 MPa of strength in a four-strand hydrogel rope) compared to separated unbraided strands of a hydrogel (2.3 MPa of strength). The higher hierarchical hydrogel cable, prepared by braiding four hydrogel ropes, can withstand a heavy load even up to 13 kg. These results represent that a hierarchical assembly of anisotropic hydrogels exhibits high mechanical performance and a hierarchically anisotropic structure, which are reminiscent of tendons.
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Affiliation(s)
- Nuri Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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96
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He X, Wang S, Zhou J, Zhang D, Xue Y, Yang X, Che L, Li D, Xiao S, Liu S, Zheng SY, Yang J. Versatile and Simple Strategy for Preparing Bilayer Hydrogels with Janus Characteristics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:4579-4587. [PMID: 35029363 DOI: 10.1021/acsami.1c22887] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bilayer hydrogels are attracting tremendous attention for their capability to integrate several different functions on the two sides of the gel, that is, imparting the gel with Janus characteristics, which is highly desired in many engineering and biomedical applications including soft actuators, hydrogel patches, and wearable electronics. However, the preparation process of the bilayer materials usually involves several complicated steps and is time-consuming, while the interfacial bonding is another main concern. Here, a simple and versatile method is proposed to obtain bilayer hydrogels within just one step based on the method of introducing viscosity contrast of the precursors for different layers. The bilayer structure can be well maintained during the whole preparation process with a constrained interfacial molecular exchange to ensure the strong bonding strength. The key requirements for forming distinct bilayer structures in situ are studied and discussed in detail. Bilayer hydrogels with different chemical designs are prepared via this strategy to tailor the good distribution of desired functions for soft actuators, wound healing patches, and wearable electronics. We believe that the strategy illustrated here will provide new insights into the preparation and application of bilayer materials.
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Affiliation(s)
- Xiaomin He
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Shuaibing Wang
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jiahui Zhou
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Dong Zhang
- Department of Chemical, Biomolecular, and Corrosion Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Yaoting Xue
- Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xuxu Yang
- Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, P. R. China
| | - Lingbin Che
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Danyang Li
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Shengwei Xiao
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Shanqiu Liu
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Si Yu Zheng
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jintao Yang
- College of Materials Science& Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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97
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Luo C, Huang M, Sun X, Wei N, Shi H, Li H, Lin M, Sun J. Super-Strong, Nonswellable, and Biocompatible Hydrogels Inspired by Human Tendons. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2638-2649. [PMID: 35045604 DOI: 10.1021/acsami.1c23102] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Fabricating artificial materials that mimic the structures and properties of tendons is of great significance. Possessing a tensile stress of approximately 10.0 MPa and a water content of around 60%, human tendons exhibit excellent mechanical properties to support daily functions. In contrast to tendons, most synthetic hydrogels with similar water content typically exclude qualified strength, swelling resistance, and biocompatibility. Herein, a facile strategy based on poly(vinyl alcohol) (PVA) and tannic acid (TA) is demonstrated to tackle this problem via a combination of sequential steps including freezing-thawing PVA aqueous solutions to form crystalline regions, prestretching and air drying in confined conditions to induce anisotropic structures, soaking in TA solutions to form multiple hydrogen bondings between PVA and TA, and finally dialyzing against water for the removal of residual TA molecules and the rearrangements and homogenization of multiple hydrogen bonds. The obtained PVA hydrogels possess hierarchically anisotropic structures, where the alignment of PVA bundles promotes high modulus, while the hydrogen bonding between PVA and TA endows them with an energy dissipation mechanism. Benefitting from the synergy of material composition and structural engineering, the obtained hydrogel displays super-strong mechanics (a tensile stress of 19.3 MPa and a toughness of 32.1 MJ/m3), outperforming most tough hydrogels. Remarkably, this hydrogel demonstrates excellent swelling resistance. It barely expands after immersion in deionized water, phosphate-buffered saline (PBS), and SBF aqueous solutions for 7 days with the strength and volume nearly the same as their initial values. All of the features, combined with excellent cytocompatibility, make it an ideal material for biotechnological and biomedical applications.
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Affiliation(s)
- Chunhui Luo
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
- Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, P. R. China
| | - Min Huang
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
| | - Xinxin Sun
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
| | - Ning Wei
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
| | - Huan Shi
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
| | - Hui Li
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, Ningxia 750021, P. R. China
| | - Min Lin
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Jing Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
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98
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Li Y, Han M, Cai Y, Jiang B, Zhang Y, Yuan B, Zhou F, Cao C. Muscle-inspired MXene/PVA hydrogel with high toughness and photothermal therapy for promoting bacteria-infected wound healing. Biomater Sci 2022; 10:1068-1082. [PMID: 35037673 DOI: 10.1039/d1bm01604k] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The process of wound healing is often accompanied by bacterial infection, which is a serious threat to human health. The abuse of antibiotics in traditional therapy aggravates the resistance of bacteria and gradually reduces the therapeutic effect. Therefore, it is important to develop effective antibacterial dressings to promote wound healing and prevent infection. Photothermal therapy (PTT) is considered a quick and reliable method of suppressing bacterial infections without developing drug resistance. The unique network structure and high water retention of hydrogel help wound healing. Inspired by the hierarchical assembly of anisotropic structures across multiple length scales of muscles, herein a directional freezing-assisted salting-out method was used to prepare anisotropic MXene@PVA hydrogels. The hydrogel not only had excellent mechanical properties (stress up to 0.5 MPa and strain up to 800%), but could also be used for local hyperthermia of infected sites using an NIR laser (808 nm). Owing to the excellent photothermal properties of MXene, its main antibacterial mechanism is hyperthermia and the hydrogel showed broad-spectrum antibacterial activity against Gram-positive and Gram-negative bacteria (inhibition rates of Escherichia coli and Staphylococcus aureus were 98.3 and 95.5% respectively). In addition, it could effectively promote the proliferation of NIH-3T3 cells. In mouse wound models, the hydrogel was effective in inhibiting wound infection and promoting skin wound healing (the rate of wound closure was 98%). These results indicated that the MXene@PVA hydrogel, with high toughness and anisotropy properties, has the potential to be an excellent antibacterial wound healing dressing.
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Affiliation(s)
- Yan Li
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Miaomiao Han
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Yue Cai
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Bing Jiang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Yuanxin Zhang
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Biao Yuan
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
| | - Feng Zhou
- School of Food Science, NanJing XiaoZhuang University, Nanjing, Jiangsu, China.
| | - Chongjiang Cao
- Department of Food Quality and Safety/National R&D Center for Chinese Herbal Medicine Processing, College of Engineering, China Pharmaceutical University, Nanjing 211198, China.
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99
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Wang Q, Zhang Q, Wang G, Wang Y, Ren X, Gao G. Muscle-Inspired Anisotropic Hydrogel Strain Sensors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:1921-1928. [PMID: 34958540 DOI: 10.1021/acsami.1c18758] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Hydrogel strain sensors have attracted tremendous attention in medical monitoring, flexible wearable devices, and human-machine interfaces. However, traditional hydrogels exhibit isotropic sensing performance based on their isotropic structure. Therefore, it is challenging to fabricate a hydrogel with an anisotropic structure similar to human tissues for achieving anisotropic sensing characteristics. Herein, we proposed a simple and effective method for preparing anisotropic poly(vinyl alcohol) (PVA) conductive hydrogels, which demonstrated anisotropic mechanical properties and anisotropic ion conductivity. The anisotropic hydrogel was successfully constructed through first thermal stretching and then directional freezing. The mechanical strength of hydrogels along the parallel stretching direction (stress of 1596 kPa and toughness of 3.69 MJ/m3) was higher than that of the hydrogels along the vertical stretching direction (stress of 883.1 kPa and toughness of 1.96 MJ/m3). Moreover, the hydrogel showed anisotropic conductivity on the advantage of the different ion channels. The prepared hydrogel sensor exhibited anisotropic sensing for multidirectional stress in the strain range from 0.5 to 100%. The gauge factors (GF) parallel to the stretching direction were greater than the GF vertical to the stretching direction. The anisotropic hydrogel sensors are expected to have broad application prospects in flexible wearable devices and medical monitoring.
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Affiliation(s)
- Qian Wang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Qian Zhang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Guangyu Wang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Yuanrui Wang
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Xiuyan Ren
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Guanghui Gao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, P. R. China
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100
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Whitaker DJ, Park J, Ueda C, Wu G, Harada A, Matsuba G, Takashima Y, Scherman OA. Water content and guest size dictate the mechanical properties of cyclodextrin mediated hydrogels. Polym Chem 2022. [DOI: 10.1039/d2py00769j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Steric bulkiness and water content plays an important role in mechanical properties of supramolecular hydrogels consisting of host-guest complexation as cross-links. With low and high water contents, the network mobility and the kinetics of the cross-links become dominant to the mechanical properties, respectively.
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Affiliation(s)
- Daniel J. Whitaker
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Melville Laboratory for Polymer Synthesis, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | - Junsu Park
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Chiharu Ueda
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Guanglu Wu
- Melville Laboratory for Polymer Synthesis, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | - Akira Harada
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Go Matsuba
- Graduate School of Organic Materials Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Yoshinori Takashima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis, Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
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