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Zhu Y, Zhang X, Li R, Wang Y, Wang D, Zhang N, Chen D, Li S. Multifunctional polyvinyl alcohol/poly-dopamine hydrogels loaded with bio-nano composites promote wound healing by repairing endogenous electric fields. Int J Biol Macromol 2024; 272:132763. [PMID: 38821311 DOI: 10.1016/j.ijbiomac.2024.132763] [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: 03/14/2024] [Revised: 05/19/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
In this paper, a heart-shaped nanocomposite (MXenen@Cu-MOF, MC) has been prepared by hydrothermal method. This material can effectively prevent the accumulation of MXene, improve the material's electrical conductivity and antibacterial properties. In addition, it is loaded into Polyvinyl alcohol/Poly-dopamine hydrogel wound dressings (PPMC), which can effectively destroy bacterial biofilms and provide a new pathway for internal electrical currents, helping to repair internal electric fields and promote wound healing. Through the concentration gradient experiments of hydrogel such as antibacterial, conductive, hemolysis and cell migration, we believe that the addition of MC can improve the basic properties of hydrogel. Among them, PPMC0.2 is the hydrogel with the best performance under the premise of meeting bio-compatibility. Its resistance, between 500 and 1000 Ω, is lower than the skin resistance at the wound site and provides the basis for the passage of current through the body. In addition, the cell mobility (24h) of PPMC0.2 reached 58%, and the wound healing rate (6day) was 81.84%, which was much higher than that of other experimental groups. The experimental results proved that PPMC hydrogel can promote wound healing, and this study also provided a new therapeutic idea for chronic wound healing.
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Affiliation(s)
- Yueyuan Zhu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiuwen Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ren Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yapeng Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Dong Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Nan Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Dan Chen
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China; Qingdao High-tech Industry Promotion Centre (Qingdao Technology Market Service Centre), Qingdao 266042, China
| | - Shaoxiang Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Research Centre for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, China; Shandong Engineering Technology Research Centre for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, China
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2
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Wang S, Lei L, Tian Y, Ning H, Hu N, Wu P, Jiang H, Zhang L, Luo X, Liu F, Zou R, Wen J, Wu X, Xiang C, Liu J. Strong, tough and anisotropic bioinspired hydrogels. MATERIALS HORIZONS 2024; 11:2131-2142. [PMID: 38376175 DOI: 10.1039/d3mh02032k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Soft materials are widely used in tissue engineering, soft robots, wearable electronics, etc. However, it remains a challenge to fabricate soft materials, such as hydrogels, with both high strength and toughness that are comparable to biological tissues. Inspired by the anisotropic structure of biological tissues, a novel solvent-exchange-assisted wet-stretching strategy is proposed to prepare anisotropic polyvinyl alcohol (PVA) hydrogels by tuning the macromolecular chain movement and optimizing the polymer network. The reinforcing and toughening mechanisms are found to be "macromolecule crystallization and nanofibril formation". These hydrogels exhibit excellent mechanical properties, such as extremely high fracture stress (12.8 ± 0.7 MPa) and fracture strain (1719 ± 77%), excellent modulus (4.51 ± 0.76 MPa), high work of fracture (134.47 ± 9.29 MJ m-3), and fracture toughness (305.04 kJ m-2) compared with other strong hydrogels and even natural tendons. In addition, excellent conductivity, strain sensing capability, water retention, freezing resistance, swelling resistance, and biocompatibility can also be achieved. This work provides a new and effective method to fabricate multifunctional anisotropic hydrogels with high tunable strength and toughness with potential applications in the fields of regenerative medicine, flexible sensors, and soft robotics.
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Affiliation(s)
- Shu Wang
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
- State Key Laboratory of Resource Insects, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
| | - Ling Lei
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
| | - Yuanhao Tian
- Southwest Technology and Engineering Research Institute, Chongqing, 400039, P. R. China
| | - Huiming Ning
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
| | - Ning Hu
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, P. R. China
| | - Hanqing Jiang
- School of Engineering, Westlake University, Hangzhou, 310024, P. R. China
| | - Lidan Zhang
- School of Basic Medicine, Chongqing Medical University, 400042, P. R. China
| | - Xiaolin Luo
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Feng Liu
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
| | - Rui Zou
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Jie Wen
- School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xiaopeng Wu
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
| | - Chenxing Xiang
- College of Aerospace Engineering, Chongqing University, 174 Shazheng St, Shapingba District, Chongqing, 400044, P. R. China.
| | - Jie Liu
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Changsha, Hunan, 410082, P. R. China.
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3
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Chai G, Wang N, Xu M, Ma L, Liu X, Ding Q, Zhang S, Li A, Xia G, Zhao Y, Liu W, Liang D, Ding C. Poly (vinyl alcohol)/sodium alginate/carboxymethyl chitosan multifunctional hydrogel loading HKUST-1 nanoenzymes for diabetic wound healing. Int J Biol Macromol 2024; 268:131670. [PMID: 38643919 DOI: 10.1016/j.ijbiomac.2024.131670] [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: 12/22/2023] [Revised: 04/02/2024] [Accepted: 04/15/2024] [Indexed: 04/23/2024]
Abstract
Bacterial infection, hyperinflammation and hypoxia, which can lead to amputation in severe cases, are frequently observed in diabetic wounds, and this has been a critical issue facing the repair of chronic skin injuries. In this study, a copper-based MOF (TAX@HKUST-1) highly loaded with taxifolin (TAX) with a drug loading of 41.94 ± 2.60 % was prepared. In addition, it has excellent catalase activity, and by constructing an oxygen-releasing hydrogel (PTH) system with calcium peroxide (CaO2), it can be used as a nano-enzyme to promote the generation of oxygen from hydrogen peroxide (H2O2) to provide sufficient oxygen to the wound, and at the same time, solve the problem of the oxidative stress damage caused by excess H2O2 to the cells during the oxygen-releasing process. On the other hand, TAX and HKUST-1 in PTH synergistically promoted antimicrobial and anti-oxidative stress properties, and the bacterial inhibition rate against Staphylococcus aureus and Escherichia coli reached 90 %. In vivo experiments have shown that PTH hydrogel is able to treat diabetic skin repair by inhibiting the expression of inflammation-related proteins and promoting epidermal neogenesis, angiogenesis and collagen deposition.
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Affiliation(s)
- Guodong Chai
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China
| | - Ning Wang
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China
| | - Meiling Xu
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China
| | - Lina Ma
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Xinglong Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Qiteng Ding
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Shuai Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China
| | - Anning Li
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd, Yanbian 133000, China
| | - Guofeng Xia
- Jilin Aodong Yanbian Pharmaceutical Co., Ltd, Yanbian 133000, China
| | - Yingchun Zhao
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China.
| | - Dadong Liang
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China.
| | - Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China.
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4
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Luo K, Wang Q, Xin Q, Lei Z, Hu E, Wang H, Wang H, Liang F. Preparation of novel polyvinyl alcohol-carbon nanotubes containing imidazolyl ionic liquid/chitosan hydrogel for highly efficient uranium extraction from seawater. Int J Biol Macromol 2024; 258:128751. [PMID: 38101661 DOI: 10.1016/j.ijbiomac.2023.128751] [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: 09/25/2023] [Revised: 12/01/2023] [Accepted: 12/09/2023] [Indexed: 12/17/2023]
Abstract
A novel polyvinyl alcohol-carbon nanotube containing an imidazolyl ionic liquid/chitosan composite hydrogel (termed CBCS) was prepared for highly selective uranium adsorption from seawater. The results show that CBCS has good adsorption properties for uranium within the pH range of 5.0-8.0. Kinetics and thermodynamics experiments show that the theoretical maximum adsorption capacity of CBCS to U(VI) is 496.049 mg/g (288 K, pH = 6.0), indicating a spontaneous exothermic reaction. Mechanism analysis shows that the hydroxyl group, amino group, and CN bond on the surface of CBCS directly participate in uranium adsorption and that the dense pores on the surface of CBCS play an important role in uranium adsorption. The competitive adsorption experiment shows that CBCS has excellent uranium adsorption selectivity. In addition, CBCS exhibits good reusability. After five adsorption-desorption cycles, the uranium adsorption rate of CBCS can still reach >98 %. Hence, CBCS has excellent potential for uranium extraction from seawater.
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Affiliation(s)
- Kaiwen Luo
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qingliang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qi Xin
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Zhiwu Lei
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Eming Hu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Hongqing Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Hongqiang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China.
| | - Feng Liang
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, School of Municipal and Environmental Engineering, Henan University of Urban Construction, Pingdingshan 467036, China
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5
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Gan J, Le D, Wang Q, Xin Q, Hu E, Lei Z, Wang H, Wang H. Polyvinyl alcohol/phytic acid/phosphorylated chitosan hydrogel electrode highly efficient electroadsorption of low concentration uranium from uranium tailings leachate. Int J Biol Macromol 2024; 254:128008. [PMID: 37951068 DOI: 10.1016/j.ijbiomac.2023.128008] [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: 10/12/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/13/2023]
Abstract
In order to improve the removal rate of uranium and reduce the harm of radioactive pollution, a physically crosslinked polyvinyl alcohol/phosphorylated chitosan (PPP) hydrogel electrode was designed by freezing thawing method. The results show that PPP hydrogel has a good adsorption effect on uranium, and 200 mL of uranium tailings leachate is absorbed, and the treatment efficiency reaches 100 % within 15 min. PPP hydrogel can adapt to a wide range of pH conditions and exhibit excellent adsorption efficiency in the range of 3-9. At the same time, PPP hydrogel maintains an adsorption efficiency of over 85 % for 950 mg/L uranium solution. This lays the foundation for the practical application of PPP hydrogel. In addition, PPP hydrogel also exhibits good repeatability, after 7 cycles, the material still retains 95 % of its initial performance. The synergistic effect of various functional groups such as phosphate, hydroxyl, and ammonium in the material is the main mechanism of PPP's adsorption capacity for uranium. Furthermore, electrochemical adsorption method significantly enhances the adsorption performance of PPP hydrogel.
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Affiliation(s)
- Jiali Gan
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Dongdong Le
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qingliang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Qi Xin
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Eming Hu
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Zhiwu Lei
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Hongqing Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Hongqiang Wang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China.
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6
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Guo Z, Ma C, Xie W, Tang A, Liu W. An effective DLP 3D printing strategy of high strength and toughness cellulose hydrogel towards strain sensing. Carbohydr Polym 2023; 315:121006. [PMID: 37230626 DOI: 10.1016/j.carbpol.2023.121006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/05/2023] [Accepted: 05/08/2023] [Indexed: 05/27/2023]
Abstract
Photocurable 3D printing technology has outperformed extrusion-based 3D printing technology in material adaptability, resolution, and printing rate, yet is still limited by the insecure preparation and selection of photoinitiators and thus less reported. In this work, we developed a printable hydrogel that can effectively facilitate various solid or hollow structures and even lattice structures. The chemical and physical dual-crosslinking strategy combined with cellulose nanofibers (CNF) significantly improved the strength and toughness of photocurable 3D printed hydrogels. In this study, the tensile breaking strength, Young's modulus, and toughness of poly(acrylamide-co-acrylic acid)D/cellulose nanofiber (PAM-co-PAA)D/CNF hydrogels were 375 %, 203 % and 544 % higher than those of the traditional single chemical crosslinked (PAM-co-PAA)S hydrogels, respectively. Notably, its outstanding compressive elasticity enabled it to recover under 90 % strain compression (about 4.12 MPa). Resultantly, the proposed hydrogel can be utilized as a flexible strain sensor to monitor the motions of human movements, such as the bending of fingers, wrists, and arms, and even the vibration of a speaking throat. The output of electrical signals can still be collected through strain even under the condition of energy shortage. In addition, photocurable 3D printing technology can provide customized services for hydrogel-based e-skin, such as hydrogel-based bracelets, fingerstall, and finger joint sleeves.
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Affiliation(s)
- Zhengqiang Guo
- School of Mechanical and Automotive Engineering, South China University of Technology, Wushan Road, Tianhe District, 510641 Guangzhou City, PR China
| | - Chengdong Ma
- School of Mechanical and Automotive Engineering, South China University of Technology, Wushan Road, Tianhe District, 510641 Guangzhou City, PR China
| | - Weigui Xie
- School of Mechanical and Automotive Engineering, South China University of Technology, Wushan Road, Tianhe District, 510641 Guangzhou City, PR China
| | - Aimin Tang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan Road, Tianhe District, 510641 Guangzhou City, PR China
| | - Wangyu Liu
- School of Mechanical and Automotive Engineering, South China University of Technology, Wushan Road, Tianhe District, 510641 Guangzhou City, PR China.
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7
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Easy regulation of chitosan-based hydrogel microstructure with citric acid as an efficient buffer. Carbohydr Polym 2023; 300:120258. [DOI: 10.1016/j.carbpol.2022.120258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 11/27/2022]
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8
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Luo C, Guo A, Li J, Tang Z, Luo F. Janus Hydrogel to Mimic the Structure and Property of Articular Cartilage. ACS APPLIED MATERIALS & INTERFACES 2022; 14:35434-35443. [PMID: 35913200 DOI: 10.1021/acsami.2c09706] [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] [Indexed: 06/15/2023]
Abstract
Designing hydrogels with adequate strength, remarkable swelling resistance, low friction coefficient, excellent biocompatibility, and osseointegration potential is essential for replacing articular cartilage. However, it remains challenging to integrate all these properties into one material. In this work, a Janus hydrogel was prepared from polyvinyl alcohol, chitosan, and sodium hyaluronate, followed by a one-sided dipping in situ precipitation mineralization to form a layer of hybridized hydroxyapatite (HAp), wherein the two surfaces had distinct compositions and functions. Because of the negative carboxyl groups from sodium hyaluronate, the top surface possessed a friction coefficient as low as 0.024. On account of the HAp mineralized layer, the bottom side had osteogenesis potential. Owing to the synergy of physical linkages, the hydrogel displayed compressive strength as high as 78 MPa. Furthermore, it demonstrated remarkable swelling resistance with strength retention near 100% even after soaking in PBS solution at 37 °C for 7 days. The absence of toxic chemicals maintained the merits of starting polymers and resulted in excellent biocompatibility (cell viability ≈ 100%), making it an ideal substitute for articular cartilage.
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Affiliation(s)
- Chunhui Luo
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, Ningxia, China
- Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, Ningxia, China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan 750021, China
| | - Andi Guo
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, Ningxia, China
| | - Jing Li
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, Ningxia, China
| | - Zhanqi Tang
- College of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, Ningxia, China
| | - Faliang Luo
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
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9
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Hao M, Wang Y, Li L, Liu Y, Bai Y, Zhou W, Lu Q, Sun F, Li L, Feng S, Wei W, Zhang T. Tough Engineering Hydrogels Based on Swelling-Freeze-Thaw Method for Artificial Cartilage. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25093-25103. [PMID: 35606333 DOI: 10.1021/acsami.2c02990] [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: 06/15/2023]
Abstract
Articular cartilage, which exhibits toughness and ultralow friction even under high squeezing pressures, plays an important role in the daily movement of joints. However, joint soft tissue lesions or injuries caused by diseases, trauma, or human functional decline are inevitable. Poly(vinyl alcohol) (PVA) hydrogels, which have a water content and compressive strength similar to those of many tissues and organs, have the potential to replace tough connective tissues, including cartilage. However, currently, PVA hydrogels are not suitable for complex dynamic environments and lack rebound resilience, especially under long-term or multicycle mechanical loads. Inspired by biological tissues that exhibit increased mechanical strength after swelling, we report a tough engineered hydrogel (TEHy) fabricated by swelling and freeze-thaw methods with a high compressive strength (31 MPa), high toughness (1.17 MJ m-3), a low friction coefficient (0.01), and a low energy loss factor (0.22). Notably, the TEHy remained remarkably resilient after 100 000 cycles of contact extrusion and remains intact after being compressed by an automobile with a weight of approximately 1600 kg. The TEHy also exhibited excellent water swelling resistance (volume and weight changes less than 5%). Moreover, skeletal muscle cells were able to readily attach and proliferate on the surface of TEHy-6, suggesting its outstanding biocompatibility. Overall, this swelling and freeze-thaw strategy solves the antifatigue and stability problems of PVA hydrogels under large static loads (>10 000 N) and provides an avenue to fabricate engineering hydrogels with strong antifatigue and antiswelling properties and ultralow friction for potential use as biomaterials in tissue engineering.
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Affiliation(s)
- Mingming Hao
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Yongfeng Wang
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Lianhui Li
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Yinhang Liu
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Yuanyuan Bai
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Weifan Zhou
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Qifeng Lu
- School of Chips, XJTLU Entrepreneur College (Taicang), Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou, Jiangsu 215123, P. R. China
| | - Fuqin Sun
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Lili Li
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Simin Feng
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
| | - Wei Wei
- Jiangsu Key Laboratory of Neuropsychiatric Diseases Research and Institute of Neuroscience, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Ting Zhang
- School of Nano Technology and Nano Bionics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, P. R. China
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou 215123, P. R. China
- Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, P. R. China
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10
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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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Gao YR, Zhang WX, Wei YN, Li Y, Fei T, Shu Y, Wang JH. Ionic liquids enable the preparation of a copper-loaded gel with transdermal delivery function for wound dressings. Biomater Sci 2022; 10:1041-1052. [PMID: 35029253 DOI: 10.1039/d1bm01745d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Antibacterial hydrogel dressings play an important role in wound healing and infection treatment. The majority of hydrogels are obtained through chemical cross-linking and complex synthesis or processing. Copper ions (Cu2+) have been involved in sterilization; however, their direct use may lead to high local concentrations and heavy metal toxic side effects. Herein, dopamine (DA) was polymerized in situ along a polyvinyl alcohol (PVA) chain and chelated copper ions (Cu2+) to form a mixture. Ionic liquid (IL) choline-glycolate (CGLY) was added to the mixture to form an ionic gel. CGLY promotes gel formation through intermolecular hydrogen bonds with the polymer chains and avoids the use of toxic chemical crosslinking agents. Meanwhile, CGLY can also promote the release of Cu2+ and generate hydrogel free radicals (˙OH) in the wound through chemodynamic therapy to kill drug-resistant bacteria. In addition, the excellent transdermal property of CGLY enables the released Cu2+ to stimulate cell migration and accelerate wound healing. The gel exhibits favorable biocompatibility and its use has been demonstrated in skin infection therapy of mice.
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Affiliation(s)
- Yi-Ru Gao
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Wen-Xin Zhang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Ya-Nan Wei
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - You Li
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Teng Fei
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, China
| | - Yang Shu
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jian-Hua Wang
- Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
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Sun X, Zhao Y, Li H, Luo C, Luo F. Facile fabrication of tough and biocompatible hydrogels from polyvinyl alcohol and agarose. J Appl Polym Sci 2021. [DOI: 10.1002/app.50979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xinxin Sun
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Yufei Zhao
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Hui Li
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
| | - Chunhui Luo
- College of Chemistry and Chemical Engineering North Minzu University Yinchuan China
- Key Laboratory of Chemical Engineering and Technology, State Ethnic Affairs Commission North Minzu University Yinchuan China
- Ningxia Key Laboratory of Solar Chemical Conversion Technology North Minzu University Yinchuan China
| | - Faliang Luo
- State Key Laboratory of High‐efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan China
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Zhang M, Wang G, Wang D, Zheng Y, Li Y, Meng W, Zhang X, Du F, Lee S. Ag@MOF-loaded chitosan nanoparticle and polyvinyl alcohol/sodium alginate/chitosan bilayer dressing for wound healing applications. Int J Biol Macromol 2021; 175:481-494. [PMID: 33571589 DOI: 10.1016/j.ijbiomac.2021.02.045] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 12/23/2022]
Abstract
In this paper, Ag-Metal-organic framework loaded chitosan nanoparticles (0.1%Ag@MOF/1.5%CSNPs) and polyvinyl alcohol/sodium alginate/chitosan (PACS) were used as the upper and lower layers to successfully prepare a bilayer composite dressing for wound healing. The performance of bilayer dressing was evaluated. The lower layer (PACS) had uniform pore size distribution, good water retention, swelling, water vapor permeability, and biocompatibility while PACS had almost no antibacterial activity. The upper layer (Ag@MOF/CSNPs) possessed excellent antibacterial activity and poor biocompatibility. As the upper layer, it can avoid direct contact with the skin and inhibit microbial invasion. In addition, the bilayer can adhere to a large number of red blood cells and platelets, promoting blood coagulation and cell proliferation. Ag@MOF, CSNPs, Ag@MOF/CSNPs and bilayer showed antibacterial activity in ascending order, due to the synergistic antibacterial action of the upper and lower layer. In vivo evaluation showed that both bilayer and PACS could significantly accelerate the wound healing, and the bilayer dressing showed more complete re-epithelialization with less inflammatory cells. In summary, this new bilayer composite is an ideal dressing for accelerating wound healing.
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Affiliation(s)
- Meng Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Guohui Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Dong Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.
| | - Yuqi Zheng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Yanxin Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Wenqiao Meng
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Xin Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Feifan Du
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
| | - Shaoxiang Lee
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China; Shandong Engineering Technology Research Center for Advanced Coating, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
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