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Yu K, Yang L, Zhang N, Wang S, Liu H. Development of nanocellulose hydrogels for application in the food and biomedical industries: A review. Int J Biol Macromol 2024; 272:132668. [PMID: 38821305 DOI: 10.1016/j.ijbiomac.2024.132668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/02/2024]
Abstract
As the most abundant and renewable natural resource, cellulose has attracted significant attention and research interest for the production of hydrogels (HGs). To address environmental issues and emerging demands, the benefits of naturally produced HGs include excellent mechanical properties and superior biocompatibility. HGs are three-dimensional networks created by chemical or physical cross-linking of linear or branched hydrophilic polymers and have high capacity for absorption of water and biological fluids. Although widely used in the food and biomedical fields, most HGs are not biodegradable. Nanocellulose hydrogels (NC-HGs) have been extensively applied in the food industry for detection of freshness, chemical additives, and substitutes, as well as the biomedical field for use as bioengineering scaffolds and drug delivery systems owing to structural interchangeability and stimuli-responsive properties. In this review article, the sources, structures, and preparation methods of NC-HGs are described, applications in the food and biomedical industries are summarized, and current limitations and future trends are discussed.
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Affiliation(s)
- Kejin Yu
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Institute of Ocean Research, Bohai University, Jinzhou 121013, China
| | - Lina Yang
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Institute of Ocean Research, Bohai University, Jinzhou 121013, China.
| | - Ning Zhang
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Institute of Ocean Research, Bohai University, Jinzhou 121013, China
| | - Shengnan Wang
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Institute of Ocean Research, Bohai University, Jinzhou 121013, China
| | - He Liu
- College of Food Science and Engineering, Bohai University, Jinzhou, Liaoning 121013, China; Institute of Ocean Research, Bohai University, Jinzhou 121013, China
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2
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Zhang X, Zhang H, Lv X, Xie T, Chen J, Fang D, Yi S. One-step of ionic liquid-assisted stabilization and dispersion: Exfoliated graphene and its applications in stimuli-responsive conductive hydrogels based on chitosan. Int J Biol Macromol 2024; 271:132699. [PMID: 38824103 DOI: 10.1016/j.ijbiomac.2024.132699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 05/13/2024] [Accepted: 05/26/2024] [Indexed: 06/03/2024]
Abstract
Conductive hydrogels, as novel flexible biosensors, have demonstrated significant potential in areas such as soft robotics, electronic devices, and wearable technology. Graphene is a promising conductive material, but its dispersibility in aqueous solutions exists difficulties. Here, we discover that untreated graphene, after exfoliation by different ionic liquids, can disperse well in aqueous solutions. We investigate the impact of four ionic liquids with varying alkyl chain lengths ([Bmim]Cl, [Omim]Cl, [Dmim]Cl, [Hmim]Cl) on the dispersibility of grapheme, and a dual physically cross-linked network hydrogel structure is designed using acrylamide (AM), acrylic acid (AA), methyl methacrylate octadecyl ester (SMA), ionic liquid@graphene (ILs@GN), and chitosan (CS). Notably, SMA, CS, AA and AM act as dynamic cross-linking points through hydrophobic interactions and hydrogen bonding, playing a crucial role in energy dissipation. The resulting hydrogel exhibits outstanding stretchability (2250 %), remarkable toughness (1.53 MJ/m3) in tensile deformation performance, high compressive strength (1.13 MPa), rapid electrical responsiveness (response time ∼ 50 ms), high electrical conductivity (12.11 mS/cm), and excellent strain sensing capability (GF = 12.31, strain = 1000 %). These advantages make our composite hydrogel demonstrate high stability in extensive deformations, offering repeatability in pressure and strain and making it a promising candidate for multifunctional sensors and flexible electrodes.
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Affiliation(s)
- Xikun Zhang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - He Zhang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
| | - Xue Lv
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China.
| | - Ting Xie
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Junzheng Chen
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Di Fang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Shurui Yi
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
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3
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Qin Z, Zhao G, Zhang Y, Gu Z, Tang Y, Aladejana JT, Ren J, Jiang Y, Guo Z, Peng X, Zhang X, Xu BB, Chen T. A Simple and Effective Physical Ball-Milling Strategy to Prepare Super-Tough and Stretchable PVA@MXene@PPy Hydrogel for Flexible Capacitive Electronics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303038. [PMID: 37475524 DOI: 10.1002/smll.202303038] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/01/2023] [Indexed: 07/22/2023]
Abstract
Biomimetic flexible electronics for E-skin have received increasing attention, due to their ability to sense various movements. However, the development of smart skin-mimic material remains a challenge. Here, a simple and effective approach is reported to fabricate super-tough, stretchable, and self-healing conductive hydrogel consisting of polyvinyl alcohol (PVA), Ti3 C2 Tx MXene nanosheets, and polypyrrole (PPy) (PMP hydrogel). The MXene nanosheets and Fe3+ serve as multifunctional cross-linkers and effective stress transfer centers, to facilitate a considerable high conductivity, super toughness, and ultra-high stretchability (elongation up to 4300%) for the PMP hydrogel with. The hydrogels also exhibit rapid self-healing and repeatable self-adhesive capacity because of the presence of dynamic borate ester bond. The flexible capacitive strain sensor made by PMP hydrogel shows a relatively broad range of strain sensing (up to 400%), with a self-healing feature. The sensor can precisely monitor various human physiological signals, including joint movements, facial expressions, and pulse waves. The PMP hydrogel-based supercapacitor is demonstrated with a high capacitance retention of ≈92.83% and a coulombic efficiency of ≈100%.
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Affiliation(s)
- Zipeng Qin
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - Gang Zhao
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - Yaoyang Zhang
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - Zhiheng Gu
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - Yuhan Tang
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - John Tosin Aladejana
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University Nanjing, Jiangsu, 210037, China
| | - Junna Ren
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China
| | - Yunhong Jiang
- Smart Materials and Surfaces Lab, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Zhanhu Guo
- Smart Materials and Surfaces Lab, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Xiangfang Peng
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
| | - Xuehua Zhang
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Ben Bin Xu
- Smart Materials and Surfaces Lab, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Tingjie Chen
- College of Materials Science and Engineering, Key Laboratory of Polymer Materials and Products of Universities in Fujian, Fujian University of Technology, Fuzhou, Fujian, 350002, China
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4
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Wang Z, Fu L, Liu D, Tang D, Liu K, Rao L, Yang J, Liu Y, Li Y, Chen H, Yang X. Controllable Preparation and Research Progress of Photosensitive Antibacterial Complex Hydrogels. Gels 2023; 9:571. [PMID: 37504450 PMCID: PMC10379193 DOI: 10.3390/gels9070571] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/02/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
Hydrogels are materials consisting of a network of hydrophilic polymers. Due to their good biocompatibility and hydrophilicity, they are widely used in biomedicine, food safety, environmental protection, agriculture, and other fields. This paper summarizes the typical complex materials of photocatalysts, photosensitizers, and hydrogels, as week as their antibacterial activities and the basic mechanisms of photothermal and photodynamic effects. In addition, the application of hydrogel-based photoresponsive materials in microbial inactivation is discussed, including the challenges faced in their application. The advantages of photosensitive antibacterial complex hydrogels are highlighted, and their application and research progress in various fields are introduced in detail.
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Affiliation(s)
- Zhijun Wang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Lili Fu
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Dongliang Liu
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Dongxu Tang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Kun Liu
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Lu Rao
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Jinyu Yang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
- Key Laboratory of Coal Conversion and New Carbon Materials of Hubei Province, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Yi Liu
- College of Chemistry and Chemical Engineering, Tiangong University, Tianjin 300387, China
| | - Yuesheng Li
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Huangqin Chen
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Xiaojie Yang
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, School of Nuclear Technology and Chemistry and Biology, Hubei University of Science and Technology, Xianning 437100, China
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5
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Yuan D, Huang X, Meng Q, Ma J, Zhao Y, Ke Q, Kou X. Recent advances in the application of zein-based gels: A review. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Li Y, Liu L, Xu H, Cheng Z, Yan J, Xie XM. Biomimetic Gradient Hydrogel Actuators with Ultrafast Thermo-Responsiveness and High Strength. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32541-32550. [PMID: 35791697 DOI: 10.1021/acsami.2c07631] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Most current hydrogel actuators suffer from either poor mechanical properties or limited responsiveness. Also, the widely used thermo-responsive poly-(N-isopropylacrylamide) (PNIPAM) homopolymer hydrogels have a slow response rate. Thus, it remains a challenge to fabricate thermo-responsive hydrogel actuators with both excellent mechanical and responsive properties. Herein, ultrafast thermo-responsive VSNPs-P(NIPAM-co-AA) hydrogels containing multivalent vinyl functionalized silica nanoparticles (VSNPs) are fabricated. The ultrafast thermo-responsiveness is due to the mobile polymer chains grafted from the surfaces of the VSNPs, which can facilitate hydrophobic aggregation, inducing the phase transition and generating water transport channels for quick water expulsion. In addition, the copolymerization of NIPAM with acrylic acid (AA) decreases the transition temperature of the thermo-responsive PNIPAM-based hydrogels, contributing to ultrafast thermo-responsive shrinking behavior with a large volume change of as high as 72.5%. Moreover, inspired by nature, intelligent hydrogel actuators with gradient structure can be facilely prepared through self-healing between the ultrafast thermo-responsive VSNPs-P(NIPAM-co-AA) hydrogel layers and high-strength VSNPs-PAA-Fe3+ multibond network (MBN) hydrogel layers. The obtained well-integrated gradient hydrogel actuators show ultrafast thermo-responsive performance within only 9 s in 60 °C water, as well as high strength, and can be used for more practical applications as intelligent soft actuators or artificial robots.
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Affiliation(s)
- Yuxi Li
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Licheng Liu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Hao Xu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhihan Cheng
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jianhui Yan
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xu-Ming Xie
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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7
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Xu H, Liu Y, Xie XM. Stretchable alkaline quasi-solid-state electrolytes created by super-tough, fatigue-resistant and alkali-resistant multi-bond network hydrogels. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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8
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Li Y, Yan J, Liu Y, Xie XM. Super Tough and Intelligent Multibond Network Physical Hydrogels Facilitated by Ti 3C 2T x MXene Nanosheets. ACS NANO 2022; 16:1567-1577. [PMID: 34958558 DOI: 10.1021/acsnano.1c10151] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Stretchable and conductive hydrogels have emerged as promising candidates for intelligent and flexible electronic devices. Herein, based on a multibond network (MBN) design rationale, super tough and highly stretchable nanocomposite physical hydrogels are prepared, where 2D Ti3C2Tx MXene nanosheets serve as multifunctional cross-linkers and effective stress transfer centers. Further MXene-poly(acrylic acid) (PAA)-Fe3+ MBN physical hydrogels fabricated through controlled permeation of Fe3+ exhibit prominent and well-balanced mechanical properties (e.g., the tensile strength can reach 10.4 MPa and elongation at break can be as high as 3080%), attributed to the dual cross-linking network with dense Fe3+-mediated coordination cross-links between MXene nanosheets and PAA chains and sparse carboxy-Fe3+ cross-links between PAA chains. Moreover, both conductive MXene nanosheets and numerous ions endow the hydrogels with superior conductivity (up to 3.8 S m-1), strain sensitivity (high gauge factor of 10.09), and self-healing performance, showing great prospect as intelligent flexible electronics.
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Affiliation(s)
- Yuxi Li
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jianhui Yan
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yujun Liu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xu-Ming Xie
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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9
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Lin Y, Wang S, Sun S, Liang Y, Xu Y, Hu H, Luo J, Zhang H, Li G. Highly tough and rapid self-healing dual-physical crosslinking poly(DMAA- co-AM) hydrogel. RSC Adv 2021; 11:32988-32995. [PMID: 35493553 PMCID: PMC9042265 DOI: 10.1039/d1ra05896g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/22/2021] [Indexed: 12/18/2022] Open
Abstract
Introducing double physical crosslinking reagents (i.e., a hydrophobic monomer micelle and the LAPONITE® XLG nano-clay) into the copolymerization reaction of hydrophilic monomers of N,N-dimethylacrylamide (DMAA) and acrylamide (AM) is reported here by a thermally induced free-radical polymerization method, resulting in a highly tough and rapid self-healing dual-physical crosslinking poly(DMAA-co-AM) hydrogel. The mechanical and self-healing properties can be finely tuned by varying the weight ratio of nanoclay to DMAA. The tensile strength and elongation at break of the resulting nanocomposite hydrogel can be modulated in the range of 7.5–60 kPa and 1630–3000%, respectively. Notably, such a tough hydrogel also exhibits fast self-healing properties, e.g., its self-healing rate reaches 48% and 80% within 2 and 24 h, respectively. Introducing a micelle and LAPONITE® XLG nano-clay into N,N-dimethylacrylamide (DMAA)/acrylamide (AM) copolymerization reactions results in a highly tough and rapid self-healing dual-physical crosslinking poly(DMAA-co-AM) hydrogel.![]()
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Affiliation(s)
- Yinlei Lin
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China .,Guangdong Key Laboratory for Hydrogen Energy Technologies Foshan 528000 P. R. China
| | - Shuoqi Wang
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Sheng Sun
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Yaoheng Liang
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Yisheng Xu
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Huawen Hu
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China .,Guangdong Key Laboratory for Hydrogen Energy Technologies Foshan 528000 P. R. China
| | - Jie Luo
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Haichen Zhang
- School of Materials Science and Hydrogen Energy, Foshan University Foshan Guangdong 528000 P. R. China
| | - Guangji Li
- School of Materials Science and Engineering, South China University of Technology Guangzhou 510640 P. R. China.,Key Lab of Guangdong Province for High Property and Functional Polymer Materials, South China University of Technology Guangzhou 510640 P. R. China
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10
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Super-tough and rapidly self-recoverable multi-bond network hydrogels facilitated by 2-ureido-4[1H]-pyrimidone dimers. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Xu H, Shi FK, Liu XY, Zhong M, Xie XM. How can multi-bond network hydrogels dissipate energy more effectively: an investigation on the relationship between network structure and properties. SOFT MATTER 2020; 16:4407-4413. [PMID: 32323693 DOI: 10.1039/d0sm00455c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Constructing a multi-bond network (MBN), which involves hierarchical dynamic bonds with different bond association energies, is an effective method for achieving super tough hydrogels. In this work, a small amount of poly(vinyl alcohol) (PVA) is introduced into a loosely chemically crosslinked poly(acrylic acid) (PAA) network. The hydrophilic PVA chains can physically interact and form hydrogen bonds with the PAA chains. After a freeze-thaw process, PVA could partially crystallize and the generated microcrystals could become new crosslinking points of the hydrogels. Meanwhile, the hydrogen bonds between PAA and PVA, which connect to the microcrystal "core" through PVA chains, could also become new crosslinking points of the hydrogels. The obtained ternary-crosslinked hydrogels (T-gel 10%) exhibit toughness as high as 8 times that in pure PAA hydrogels. When the PVA content exceeds 15 wt%, PVA chains will run through the whole PAA network. Thus the PVA chains will be crosslinked by microcrystals through freeze-thaw treatment, leading to a double network structure, resulting in a brittle hydrogel. The step-increased modulus of the hydrogels with different PVA contents clearly demonstrates the change in the network structure of the hydrogels. Successively, Fe3+ is introduced into the MBN hydrogels as a third cross-linking point. The obtained quaternary-crosslinked hydrogels (Q-gel 10%-Fe5) (50 wt% water content) exhibit significantly improved mechanical properties: tensile strength as high as 6.83 MPa with a fracture energy of 29.9 MJ m-3. This work provides clear insight into the relationship between network structure and mechanical properties in super tough MBN hydrogels.
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Affiliation(s)
- Hao Xu
- Key Laboratory of Advanced Materials (MOE, Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Fu-Kuan Shi
- Key Laboratory of Advanced Materials (MOE, Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Xiao-Ying Liu
- Key Laboratory of Advanced Materials (MOE, Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Ming Zhong
- Key Laboratory of Advanced Materials (MOE, Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Xu-Ming Xie
- Key Laboratory of Advanced Materials (MOE, Ministry of Education), Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
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12
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Pan L, Liu YT, Zhong M, Xie XM. Coordination-Driven Hierarchical Assembly of Hybrid Nanostructures Based on 2D Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1902779. [PMID: 31496034 DOI: 10.1002/smll.201902779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/14/2019] [Indexed: 06/10/2023]
Abstract
2D materials have received tremendous scientific and engineering interests due to their remarkable properties and broad-ranging applications such as energy storage and conversion, catalysis, biomedicine, electronics, and so forth. To further enhance their performance and endow them with new functions, 2D materials are proposed to hybridize with other nanostructured building blocks, resulting in hybrid nanostructures with various morphologies and structures. The properties and functions of these hybrid nanostructures depend strongly on the interfacial interactions between 2D materials and other building blocks. Covalent and coordination bonds are two strong interactions that hold high potential in constructing these robust hybrid nanostructures based on 2D materials. However, most 2D materials are chemically inert, posing problems for the covalent assembly with other building blocks. There are usually coordination atoms in most of 2D materials and their derivatives, thus coordination interaction as a strong interfacial interaction has attracted much attention. In this review, recent progress on the coordination-driven hierarchical assembly based on 2D materials is summarized, focusing on the synthesis approaches, various architectures, and structure-property relationship. Furthermore, insights into the present challenges and future research directions are also presented.
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Affiliation(s)
- Long Pan
- Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yi-Tao Liu
- Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Ming Zhong
- Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Xu-Ming Xie
- Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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13
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Wang M, Fan L, Qin G, Hu X, Wang Y, Wang C, Yang J, Chen Q. Flexible and low temperature resistant semi-IPN network gel polymer electrolyte membrane and its application in supercapacitor. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117740] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Hierarchically Crosslinked Gels Containing Hydrophobic Ionic Liquids towards Reliable Sensing Applications. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-020-2357-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Liu XY, Xu H, Zhang LQ, Zhong M, Xie XM. Homogeneous and Real Super Tough Multi-Bond Network Hydrogels Created through a Controllable Metal Ion Permeation Strategy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:42856-42864. [PMID: 31633324 DOI: 10.1021/acsami.9b18620] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly(acrylic acid) (PAA) hydrogels with a multi-bond network composed of sparse chemical cross-links and carboxyl-Fe3+ coordination are prepared through a controllable permeation strategy utilizing ferric citrate (FeCA). The existing strategies that directly soak PAA hydrogels in Fe3+ solutions usually induce an inhomogeneous network with densely cross-linked shells and uncertain water content of the hydrogels, which brings about ambiguity when investigating strengthening mechanisms because water content significantly affects the mechanical properties of hydrogels. Herein, the controllable permeation of Fe3+ into PAA networks based on the competition between citric acid (CA)-Fe3+ chelation and PAA-Fe3+ coordination guarantees sustained release of Fe3+, facilitating homogeneous distribution of ionic cross-links and a certain water content. The obtained hydrogels exhibit excellent and balanced mechanical properties (high tensile strength of 3.28 to 6.95 MPa with large elongations at break of 1400 to 780% when water content decreases from 80 to 50 wt %). The real robust tensile strength of this hydrogel originates from the effective energy dissipation of the homogeneous PAA-Fe3+ cross-links, and the high water content ensures a large elongation at break. Furthermore, the hydrogel also has pH-responsive and shape-memory properties.
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Affiliation(s)
- Xiao-Ying Liu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
| | - Hao Xu
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
| | - Li-Qin Zhang
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
| | - Ming Zhong
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
| | - Xu-Ming Xie
- Key Laboratory of Advanced Materials (MOE), Department of Chemical Engineering , Tsinghua University , Beijing 100084 , China
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Du J, She X, Zhu W, Zhang H, Deng T, Li X, Liu J, Li M. Tough hybrid hydrogels based on simultaneous dual
in situ
sol–gel technique and radical polymerization. J Appl Polym Sci 2019. [DOI: 10.1002/app.47742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Juan Du
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Xiaohong She
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Wenli Zhu
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Huaju Zhang
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Tao Deng
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Xiaoyu Li
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Jiayu Liu
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
| | - Mingtian Li
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, College of Materials Science and EngineeringSichuan University of Science and Engineering Zigong 643000 China
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17
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Physical Crosslinked Poly(N-isopropylacrylamide)/Nano-Hydroxyapatite Thermosensitive Composite Hydrogels. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0893-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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18
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Controlled cross-linking strategy for formation of hydrogels, microgels and nanogels. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2061-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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