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Guo J, Yang Y, Xiang Y, Zhang S, Guo X. Application of smart hydrogel materials in cartilage injury repair: A systematic review and meta-analysis. J Biomater Appl 2024; 39:96-116. [PMID: 38708775 DOI: 10.1177/08853282241248779] [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] [Indexed: 05/07/2024]
Abstract
OBJECTIVE Cartilage injury is a common clinical condition, and treatment approaches have evolved over time from traditional conservative and surgical methods to regenerative repair. In this context, hydrogels, as widely used biomaterials in the field of cartilage repair, have garnered significant attention. Particularly, responsive hydrogels (also known as "smart hydrogels") have shown immense potential due to their ability to respond to various physicochemical properties and environmental changes. This paper aims to review the latest research developments of hydrogels in cartilage repair, utilizing a more systematic and comprehensive meta-analysis approach to evaluate the research status and application value of responsive hydrogels. The goal is to determine whether these materials demonstrate favorable therapeutic effects for subsequent clinical applications, thereby offering improved treatment methods for patients with cartilage injuries. METHOD This study employed a systematic literature search method to summarize the research progress of responsive hydrogels by retrieving literature on the subject and review studies. The search terms included "hydrogel" and "cartilage," covering data from database inception up to October 2023. The quality of the literature was independently evaluated using Review Manager v5.4 software. Quantifiable data was statistically analyzed using the R language. RESULTS A total of 7 articles were retrieved for further meta-analysis. In the quality assessment, the studies demonstrated reliability and accuracy. The results of the meta-analysis indicated that responsive hydrogels exhibit unique advantages and effective therapeutic outcomes in the field of cartilage repair. Subgroup analysis revealed potential influences of factors such as different types of hydrogels and animal models on treatment effects. CONCLUSION Responsive hydrogels show significant therapeutic effects and substantial application potential in the field of cartilage repair. This study provides strong scientific evidence for their further clinical applications and research, with the hope of promoting advancements in the treatment of cartilage injuries.
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Affiliation(s)
- Juncheng Guo
- Central Laboratory of Haikou People's Hospital, Haikou Affiliated Hospital of Xiangya Medical College, Central South University, Haikou, P. R. China
| | - Yijun Yang
- Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Yang Xiang
- Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Shufang Zhang
- Central Laboratory, Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Xueyi Guo
- Central South University, Changsha, P. R. China
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2
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Lee JH, Hyun JE, Kim J, Yang J, Zhang H, Ahn H, Lee S, Kim JH, Lim T. A highly conductive, robust, self-healable, and thermally responsive liquid metal-based hydrogel for reversible electrical switches. J Mater Chem B 2024; 12:5238-5247. [PMID: 38699788 DOI: 10.1039/d4tb00209a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
This study introduces a thermally responsive smart hydrogel with enhanced electrical properties achieved through volume switching. This advancement was realized by incorporating multiscale liquid metal particles (LMPs) into the PNIPAM hydrogel during polymerization, using their inherent elasticity and conductivity when deswelled. Unlike traditional conductive additives, LMPs endow the PNIPAM hydrogel with a remarkably consistent volume switching ratio, significantly enhancing electrical switching. This is attributed to the minimal nucleation effect of LMPs during polymerization and their liquid-like behavior, like vacancies in the polymeric hydrogel under compression. The PNIPAM/LMP hydrogel exhibits the highest electrical switching, with an unprecedented switch of 6.1 orders of magnitude. Even after repeated swelling/deswelling cycles that merge some LMPs and increase the conductivity when swelled, the hydrogel consistently maintains an electrical switch exceeding 4.5 orders of magnitude, which is still the highest record to date. Comprehensive measurements reveal that the hydrogel possesses robust mechanical properties, a tissue-like compression modulus, biocompatibility, and self-healing capabilities. These features make the PNIPAM/LMP hydrogel an ideal candidate for long-term implantable bioelectronics, offering a solution to the mechanical mismatch with dynamic human tissues.
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Affiliation(s)
- Joo Hyung Lee
- The Research Institute of Industrial Science, Hanyang University, Seoul 04763, South Korea
| | - Ji Eun Hyun
- Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, South Korea
| | - Jongbeom Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, South Korea
| | - Jungin Yang
- Division of Chemical Engineering and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do 24341, South Korea.
| | - Huanan Zhang
- Department of Chemical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Hyunchul Ahn
- Department of Fiber System Engineering, Yeungnam University, Gyeongsan, Gyeongsangbuk-do 38541, South Korea.
| | - Sohee Lee
- Department of Clothing and Textiles, Gyeongsang National University, Jinju, Gyeongsangnam-do 52828, South Korea.
| | - Jung Han Kim
- Department of Materials Science and Engineering, Dong-A University, Busan 49315, South Korea.
| | - Taehwan Lim
- Division of Chemical Engineering and Bioengineering, Kangwon National University, Chuncheon, Gangwon-do 24341, South Korea.
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3
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Mehrjou A, Hadaeghnia M, Ehsani Namin P, Ghasemi I. Sodium alginate/polyvinyl alcohol semi-interpenetrating hydrogels reinforced with PEG-grafted-graphene oxide. Int J Biol Macromol 2024; 263:130258. [PMID: 38423903 DOI: 10.1016/j.ijbiomac.2024.130258] [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: 10/11/2023] [Revised: 02/05/2024] [Accepted: 02/15/2024] [Indexed: 03/02/2024]
Abstract
Semi-interpenetrating polymer network (SIPN) hydrogels composed of sodium alginate/poly (vinyl alcohol), reinforced by PEG-grafted-graphene oxide (GO-g-PEG) were prepared by ionic crosslinking of sodium alginate. The impact of grafted PEG molecular weight with two molecular weights, i.e. 400 and 2000 g/mol, and component composition were studied on the morphology, swelling behavior, mechanical and dynamic properties. SEM observation showed fine dispersion and distribution of GO-g-PEG throughout the hydrogel indicating a good interaction of particles with the components. Our results revealed that although incorporating GO-g-PEG increases the water content, it significantly enhances the mechanical properties, i.e. tensile modulus, elongation at break, and fracture toughness with a more pronounced impact at higher PEG molecular weight. As a result, the tensile modulus and the elongation at break increased by 270 % and 28 %, respectively. The SA/PVA SIPN hydrogels reinforced with the GO-g-PEG exhibit a non-linear elastic behavior with a toe at low strains. This behavior is attributed to the unique structural features of SIPN hydrogels and the orientation of GO-g-PEG particles with proper interaction with the components. The small amplitude oscillatory shear was also performed to further study the impact of SA, PVA, and GO-g-PEG compositions on the microstructure of hydrogels.
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Affiliation(s)
- Abdolali Mehrjou
- Department of Polymer Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Milad Hadaeghnia
- Department of Chemical and Material Engineering, Concordia University, Montreal, QC, Canada
| | - Parvin Ehsani Namin
- Facutly of Chemistry, Tehran North Branch of Islamic Azad University, Tehran, Iran
| | - Ismaeil Ghasemi
- Faculty of Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran.
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4
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Jiang Z, Jiang K, Si H, McBride R, Kisiday J, Oakey J. One Step Encapsulation of Mesenchymal Stromal Cells in PEG Norbornene Microgels for Therapeutic Actions. ACS Biomater Sci Eng 2023; 9:6322-6332. [PMID: 37831923 DOI: 10.1021/acsbiomaterials.3c01057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Cell therapies require control over the cellular response under standardized conditions to ensure continuous delivery of therapeutic agents. Cell encapsulation in biomaterials can be particularly effective at providing cells with a uniformly supportive and permissive cell microenvironment. In this study, two microfluidic droplet device designs were used to successfully encapsulate equine mesenchymal stromal cells (MSCs) into photopolymerized polyethylene glycol norbornene (PEGNB) microscale (∼100-200 μm) hydrogel particles (microgels) in a single on-chip step. To overcome the slow cross-linking kinetics of thiol-ene reactions, long dithiol linkers were used in combination with a polymerization chamber customized to achieve precise retention time for microgels while maintaining cytocompatibility. Thus, homogeneous cell-laden microgels could be continuously fabricated in a high-throughput fashion. Varying linker length mediated both the gel formation rate and material physical properties (stiffness, mass transport, and mesh size) of fabricated microgels. Postencapsulation cell viability and therapeutic indicators of MSCs were evaluated over 14 days, during which the viability remained at least 90%. Gene expression of selected cytokines was not adversely affected by microencapsulation compared to monolayer MSCs. Notably, PEGNB-3.5k microgels rendered significant elevation in FGF-2 and TGF-β on the transcription level, and conditioned media collected from these cultures showed robust promotion in the migration and proliferation of fibroblasts. Collectively, standardized MSC on-chip encapsulation will lead to informed and precise translation to clinical studies, ultimately advancing a variety of tissue engineering and regenerative medicine practices.
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Affiliation(s)
- Zhongliang Jiang
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Kun Jiang
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Hangjun Si
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
| | - Ralph McBride
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - John Kisiday
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - John Oakey
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
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5
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Zhao L, Zhang H, Tang N, Li MH, Hu J. Natural Phytic Acid-Assisted Polyaniline/Poly(vinyl alcohol) Hydrogel Showing Self-Reinforcing Features. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41927-41936. [PMID: 37615547 DOI: 10.1021/acsami.3c09032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Polyaniline (PANi) hydrogels that combine advantages of hydrogels and conductive PANi have recently emerged in areas of wearable devices and personal healthcare. Nevertheless, their mechanical performance often gradually degrades after being used for a period, caused by destruction of the inner structures when external forces are applied. Inspired by biological structures with persistent durability, we develop here a phytic acid-assisted PANi/poly(vinyl alcohol) (PVA) hydrogel that shows self-reinforcing features. As a natural product holding plenty of phosphate groups, phytic acid (PA) plays two crucial roles when preparing this hydrogel: (1) aniline is salinized by PA in aqueous solution to promote in situ polymerization, making the resulting PANi conductive; (2) PA/PANi particles form hydrogen bonds with PVA, acting as stress concentration points to induce structure orientation. The optimal PVA/PA/PANi hydrogel displays dark green color with a uniform distribution of PA/PANi particles. After experiencing repetitive 4 × 100 stretching at a strain of 10%, the hydrogel exhibits an enhanced fracture strength (20.35 MPa), Young's modulus (22.66 MPa), and toughness (36.24 MJ·m-3) compared with the original hydrogel. This self-reinforcing feature is mainly attributed to the formation of anisotropic structures fixed by hydrogen bonds between PA/PANi particles and PVA chains upon repetitive external forces. Moreover, anisotropic structures can be disassembled by swelling the post-stretched hydrogel in water, and the swollen hydrogel shows similar self-reinforcing behaviors. The good mechanical durability and reusable characteristics make the PVA/PA/PANi hydrogel a reliable strain sensor. This work provides a structural growing-reviving approach for conductive hydrogels with persistent durability.
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Affiliation(s)
- Lianjie Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, China
| | - Hao Zhang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, China
| | - Ning Tang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, China
| | - Min-Hui Li
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris, 11 rue Pierre et Marie Curie, Paris 75005, France
| | - Jun Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing 100029, China
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Wang H, Zhuang T, Wang J, Sun X, Wang Y, Li K, Dai X, Guo Q, Li X, Chong D, Chen B, Yan J. Multifunctional Filler-Free PEDOT:PSS Hydrogels with Ultrahigh Electrical Conductivity Induced by Lewis-Acid-Promoted Ion Exchange. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302919. [PMID: 37352335 DOI: 10.1002/adma.202302919] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/09/2023] [Indexed: 06/25/2023]
Abstract
Highly conductive hydrogels with biotissue-like mechanical properties are of great interest in the emerging field of hydrogel bioelectronics due to their good biocompatibility, deformability, and stability. Fully polymeric hydrogels may exhibit comparable Young's modulus to biotissues. However, most of these filler-free hydrogels have a low electrical conductivity of <10 S cm-1 , which limits their wide applications of them in digital circuits or bioelectronic devices. In this work, a series of metal-halides-doped poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hydrogels with an ultrahigh electrical conductivity up to 547 S cm-1 is reported, which is 1.5 times to 104 times higher than previously reported filler-free polymeric hydrogels. Theoretical calculation demonstrated that the ion exchange between PEDOT:PSS and the metal halides played an important role to promote phase separation in the hydrogels, which thus leads to ultrahigh electrical conductivity. The high electrical conductivity resulted in multifunctional hydrogels with high performance in thermoelectrics, electromagnetic shielding, Joule heating, and sensing. Such flexible and stretchable hydrogels with ultrahigh electrical conductivity and stability upon various deformations are promising for soft bioelectronics devices and wearable electronics.
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Affiliation(s)
- Hong Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
- Shaanxi Jianeng Flexible Thermoelectric Technology, Inc.|Western China Science and Technology Innovation Port, Fengxi New City, Xixian New District, Xi'an, 710048, China
| | - Tiantian Zhuang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Jing Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Sun
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Yizhuo Wang
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Kuncai Li
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Dai
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Qinyue Guo
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xuhui Li
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Daotong Chong
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Bin Chen
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Junjie Yan
- State Key Laboratory of Multiphase Flow in Power Engineering & Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
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7
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Bakar AJBA, Azam NSM, Sevakumaran V, Ismail WIBW, Razali MH, Razak SIBA, Amin KAM. Effectiveness of collagen and gatifloxacin in improving the healing and antibacterial activities of gellan gum hydrogel films as dressing materials. Int J Biol Macromol 2023; 245:125494. [PMID: 37348586 DOI: 10.1016/j.ijbiomac.2023.125494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 06/04/2023] [Accepted: 06/18/2023] [Indexed: 06/24/2023]
Abstract
The demand for advanced wound care products is rapidly increasing nowadays. In this study, gellan gum/collagen (GG/C) hydrogel films containing gatifloxacin (GAT) were developed to investigate their properties as wound dressing materials. ATR-FTIR, swelling, water content, water vapor transmission rate (WVTR), and thermal properties were investigated. The mechanical properties of the materials were tested in dry and wet conditions to understand the performance of the materials after exposure to wound exudate. Drug release by Franz diffusion was measured with all samples showing 100 % cumulative drug release after 40 min. Strong antibacterial activities against Staphylococcus aureus and Staphylococcus epidermis were observed for Gram-positive bacteria, while Escherichia coli and Pseudomonas aeruginosa were observed for Gram-negative bacteria. The in-vivo cytotoxicity of GG/C-GAT was assessed by wound contraction in rats, which was 95 % for GG/C-GAT01. Hematoxylin and eosin and Masson's trichrome staining revealed the appearance of fresh full epidermis and granulation tissue, indicating that all wounds had passed through the proliferation phase. The results demonstrate the promising properties of the materials to be used as dressing materials.
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Affiliation(s)
| | - Nurul Shahirah Mohd Azam
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Vigneswari Sevakumaran
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Wan Iryani Bt Wan Ismail
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Mohd Hasmizam Razali
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Saiful Izwan Bin Abdul Razak
- BioInspired Device and Tissue Engineering Research Group, Faculty of Engineering, School of Biomedical Engineering and Health Sciences, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia
| | - Khairul Anuar Mat Amin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia.
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8
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Östmans R, Cortes Ruiz MF, Rostami J, Sellman FA, Wågberg L, Lindström SB, Benselfelt T. Elastoplastic behavior of anisotropic, physically crosslinked hydrogel networks comprising stiff, charged fibrils in an electrolyte. SOFT MATTER 2023; 19:2792-2800. [PMID: 36992628 DOI: 10.1039/d2sm01571d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Fibrillar hydrogels are remarkably stiff, low-density networks that can hold vast amounts of water. These hydrogels can easily be made anisotropic by orienting the fibrils using different methods. Unlike the detailed and established descriptions of polymer gels, there is no coherent theoretical framework describing the elastoplastic behavior of fibrillar gels, especially concerning anisotropy. In this work, the swelling pressures of anisotropic fibrillar hydrogels made from cellulose nanofibrils were measured in the direction perpendicular to the fibril alignment. This experimental data was used to develop a model comprising three mechanical elements representing the network and the osmotic pressure due to non-ionic and ionic surface groups on the fibrils. At low solidity, the stiffness of the hydrogels was dominated by the ionic swelling pressure governed by the osmotic ingress of water. Fibrils with different functionality show the influence of aspect ratio, chemical functionality, and the remaining amount of hemicelluloses. This general model describes physically crosslinked hydrogels comprising fibrils with high flexural rigidity - that is, with a persistence length larger than the mesh size. The experimental technique is a framework to study and understand the importance of fibrillar networks for the evolution of multicellular organisms, like plants, and the influence of different components in plant cell walls.
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Affiliation(s)
- Rebecca Östmans
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
- Wallenberg Wood Science Center, 100 44 Stockholm, Sweden
| | - Maria F Cortes Ruiz
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
- Wallenberg Wood Science Center, 100 44 Stockholm, Sweden
| | - Jowan Rostami
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
| | - Farhiya Alex Sellman
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
- Wallenberg Wood Science Center, 100 44 Stockholm, Sweden
| | - Lars Wågberg
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
- Wallenberg Wood Science Center, 100 44 Stockholm, Sweden
| | | | - Tobias Benselfelt
- Department of Fibre and Polymer Technology, Division of Fibre Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden.
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore, Singapore.
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9
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Wang H, Lin H, Hu X, Zhou Z, Chen Q, Hong M, Fu H. Highly Flexible, Freezing-Resistant, Anisotropically Conductive Sandwich-Shaped Composite Hydrogels for Strain Sensors. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- Hu Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Huang Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Xulian Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, P. R. China
| | - Zhaoxi Zhou
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Qihui Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. Chain
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. Chain
| | - Heqing Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. Chain
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10
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Yuan N, Shao K, Huang S, Chen C. Chitosan, alginate, hyaluronic acid and other novel multifunctional hydrogel dressings for wound healing: A review. Int J Biol Macromol 2023; 240:124321. [PMID: 37019198 DOI: 10.1016/j.ijbiomac.2023.124321] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/05/2023]
Abstract
Wound healing is a complex project, and effectively promoting skin repair is a huge clinical challenge. Hydrogels have great prospect in the field of wound dressings because their physical properties are very similar to those of living tissue and have excellent properties such as high water content, oxygen permeability and softness. However, the single performance of traditional hydrogels limits their application as wound dressings. Therefore, natural polymers such as chitosan, alginate and hyaluronic acid, which are non-toxic and biocompatible, are individually or combined with other polymer materials, and loaded with typical drugs, bioactive molecules or nanomaterials. Then, the development of novel multifunctional hydrogel dressings with good antibacterial, self-healing, injectable and multi-stimulation responsiveness by using advanced technologies such as 3D printing, electrospinning and stem cell therapy has become a hot topic of current research. This paper focuses on the functional properties of novel multifunctional hydrogel dressings such as chitosan, alginate and hyaluronic acid, which lays the foundation for the research of novel hydrogel dressings with better performance.
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Jiang Z, Shi X, Qiao F, Sun J, Hu Q. Multistimuli-Responsive PNIPAM-Based Double Cross-Linked Conductive Hydrogel with Self-Recovery Ability for Ionic Skin and Smart Sensor. Biomacromolecules 2022; 23:5239-5252. [PMID: 36354756 DOI: 10.1021/acs.biomac.2c01058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Multistimuli-responsive conductive hydrogels have been appealing candidates for multifunctional ionic skin. However, the fabrication of the multistimuli-responsive conductive hydrogels with satisfactory mechanical property to meet the practical applications is still a great challenge. In this study, a novel poly(N-isopropylacrylamide-co-sodium acrylate)/alginate/hectorite clay Laponite XLS (PNIPAM-SA/ALG/XLS) double cross-linked hydrogel with excellent mechanical property, self-recovery ability, temperature/pH-responsive ability, and strain/temperature-sensitive conductivity was fabricated. The PNSAX hydrogel possessed a moderate tensile strength of 290 kPa at a large elongation rate of 1120% and an excellent compression strength of 2.72 MPa at 90%. The hydrogel also possessed excellent mechanical repeatability and self-recovery ability. Thus, the hydrogel could withstand repetitive deformations for long time periods. Additionally, the hydrogel could change its transparency and volume once at a temperature of 44 °C and change its volume at different pHs. Thus, the visual temperature/pH-responsive ability allowed the hydrogel to qualitatively harvest environmental information. Moreover, the hydrogel possessed an excellent conductivity of 0.43 S/m, and the hydrogel could transform large/subtle deformation and temperature information into electrical signal change. Thus, the ultrafast strain/temperature-sensitive conductivity allowed the hydrogel to quantitatively detect large/small-scale human motions as well as environmental temperature. A cytotoxicity test confirmed the good cytocompatibility. Taken together, the hydrogel was suitable for human motion detecting and environmental information harvesting for long time periods. Therefore, the hydrogel has a great application potential as a multifunctional ionic skin and smart sensor.
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Affiliation(s)
- Zhiqi Jiang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Xuanyu Shi
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Fenghui Qiao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Jingzhi Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
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12
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Di X, Hou J, Yang M, Wu G, Sun P. A bio-inspired, ultra-tough, high-sensitivity, and anti-swelling conductive hydrogel strain sensor for motion detection and information transmission. MATERIALS HORIZONS 2022; 9:3057-3069. [PMID: 36239123 DOI: 10.1039/d2mh00456a] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Conductive hydrogels are excellent candidates for the next-generation wearable materials and are being extensively investigated for their potential use in health monitoring devices, human-machine interfaces, and other fields. However, their relatively low mechanical strength and performance degradation due to swelling have presented challenges in their practical application. Inspired by the multiscale heterogeneous architecture of biological tissue, a dynamic cross-linked, ultra-tough, and high-sensitivity hydrogel with a swelling resistance characteristic was fabricated by the principle of multiple non-covalent interaction matching and a step-by-step construction strategy. A heterogeneous structure was constructed by the combination of a 'soft' hydrophobic-conjugated micro-region structural domain with inter/intra-molecular hydrogen bonding and π-π stacking along with 'rigid' cross-linking via strong ionic coordination interactions. Reversible cross-linking synergies and variations in the content of rigid and flexible components guaranteed the hydrogel to undergo flexible and efficient modulation of the structures and gain excellent mechanics, including elongation at break (>2000%), toughness (∼60 MJ m-3), and recovery (>88%). Notably, hydrogels displayed good anti-swelling properties even in solutions with different pH (pH 2-11) and solvents. Moreover, the hydrogel further exhibited fast response (47.4 ms) and high sensitivity due to the presence of dynamic ions (Fe3+, Na+, and Cl-); therefore, it was assembled into a sensor to detect various human motions and used as a signal transmitter for the encryption and decryption of information according to Morse code. This study provides basis for the development of a variety of robust and flexible conductive hydrogels with multifunctional sensing applications in next-generation wearable devices.
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Affiliation(s)
- Xiang Di
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Jiawen Hou
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Mingming Yang
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Guolin Wu
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
| | - Pingchuan Sun
- Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
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13
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Makarova AO, Derkach SR, Kadyirov AI, Ziganshina SA, Kazantseva MA, Zueva OS, Gubaidullin AT, Zuev YF. Supramolecular Structure and Mechanical Performance of κ-Carrageenan-Gelatin Gel. Polymers (Basel) 2022; 14:polym14204347. [PMID: 36297925 PMCID: PMC9612265 DOI: 10.3390/polym14204347] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/01/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
In this work, by means of complex physicochemical methods the structural features of a composite κ-carrageenan–gelatin system were studied in comparison with initial protein gel. The correlation between the morphology of hydrogels and their mechanical properties was demonstrated through the example of changes in their rheological characteristics. The experiments carried out with PXRD, SAXS, AFM and rheology approaches gave new information on the structure and mechanical performance of κ-carrageenan–gelatin hydrogel. The combination of PXRD, SAXS and AFM results showed that the morphological structures of individual components were not observed in the composite protein–polysaccharide hydrogels. The results of the mechanical testing of initial gelatin and engineered κ-carrageenan–gelatin gel showed the substantially denser parking of polymer chains in the composite system due to a significant increase in intermolecular protein–polysaccharide contacts. Close results were indirectly followed from the SAXS estimations—the driving force for the formation of the common supramolecular structural arrangement of proteins and polysaccharides was the increase in the density of network of macromolecular chains entanglements; therefore, an increase in the energy costs was necessary to change the conformational rearrangements of the studied system. This increase in the macromolecular arrangement led to the growth of the supramolecular associate size and the growth of interchain physical bonds. This led to an increase in the composite gel plasticity, whereas the enlargement of scattering particles made the novel gel system not only more rigid, but also more fragile.
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Affiliation(s)
- Anastasiya O. Makarova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St. 2/31, 420111 Kazan, Russia
| | - Svetlana R. Derkach
- Department of Chemistry, Murmansk State Technical University, Sportivnaya Str. 13, 183010 Murmansk, Russia
| | - Aidar I. Kadyirov
- Institute of Power Engineering and Advanced Technologies, FRC Kazan Scientific Center of RAS, Lobachevsky St. 2/31, 420111 Kazan, Russia
| | - Sufia A. Ziganshina
- Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, Sibirsky Tract 10/7, 420029 Kazan, Russia
| | - Mariia A. Kazantseva
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St. 2/31, 420111 Kazan, Russia
- HSE Tikhonov Moscow Institute of Electronics and Mathematics, Tallinskaya St. 34, 123458 Moscow, Russia
| | - Olga S. Zueva
- Department of Physics, Kazan State Power Engineering University, Krasnoselskaya St. 51, 420066 Kazan, Russia
| | - Aidar T. Gubaidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov St. 8, 420088 Kazan, Russia
- A. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
| | - Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky St. 2/31, 420111 Kazan, Russia
- A. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya St. 18, 420008 Kazan, Russia
- Correspondence:
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14
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Drying-Enhanced Polyvinyl alcohol-Polyacrylic acid Double-Network Hydrogel and Its Application in Flexible Strain Sensors. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Yang L, Hong F, Shao H, Qi H, Xie Y, Yu W, Dong X, Li D, Ma Q, Liu G. Distinctive Sandwich-Type Composite Film and Deuterogenic Three-Dimensional Triwall Tubes Affording Concurrent Aeolotropic Conduction, Magnetism, and Up-/Down-Conversion Luminescence. ACS OMEGA 2022; 7:14332-14344. [PMID: 35573220 PMCID: PMC9089678 DOI: 10.1021/acsomega.2c01200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/29/2022] [Indexed: 05/25/2023]
Abstract
Compared to single functional materials, multifunctional materials with electrical conduction, magnetism, and luminescence are more attractive and promising, so it has become an important subject. A distinctive sandwich-type composite film (STCF) with dual-color up- and down-conversion luminescence, magnetism, and aeolotropic conduction is prepared by layer-by-layer electrospinning technology. Macroscopically, STCF is assembled by three tightly bonded layers, including a [polypyrrole (PPy)/poly(methyl methacrylate) (PMMA)]//[NaYF4:Yb3+, Er3+/PMMA] Janus nanobelt array layer as the first layer, a CoFe2O4/polyacrylonitrile (PAN) nanofiber nonarray layer as the second layer, and a Na2GeF6:Mn4+/polyvinylpyrrolidone (PVP) nanofiber nonarray layer as the third layer. This unique macropartition effectually confines conductive aeolotropy, magnetism, and luminescence in different layers. Microscopically, a Janus nanobelt is used as a construction unit to restrict the luminescent and conductive materials to their microregions, thus achieving highly conductive aeolotropy and green luminescence. The high integration of the micro-subarea and macro-subarea in the STCF can efficaciously avoid the mutual disadvantageous effects among different materials to obtain splendid polyfunctional performance. The conductive anisotropy and magnetism of the STCF can be adjusted by changing the contents of PPy and CoFe2O4. When the PPy content reaches 70%, the conductance ratio in the conductive direction to insulative direction is 108. The 2D STCF can be crimped by four different methods, and the 3D TWTs have the same excellent polyfunctional performances as 2D STCF. This unique design idea and construction technology can be applied to the preparation of other multifunctional materials to avoid harmful interference among various functions.
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Affiliation(s)
- Liu Yang
- Chongqing
Research Institute, Changchun University
of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Feng Hong
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Hong Shao
- Chongqing
Research Institute, Changchun University
of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Haina Qi
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Yunrui Xie
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Wensheng Yu
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Xiangting Dong
- Chongqing
Research Institute, Changchun University
of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Dan Li
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Qianli Ma
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Guixia Liu
- College of Materials Science and Engineering and Key Laboratory of Applied
Chemistry and
Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
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16
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Liu G, Ma M, Meng H, Liu J, Zheng Y, Peng J, Wei S, Sun Y, Wang Y, Xie Y, Li J. In-situ self-assembly of bacterial cellulose/poly(3,4-ethylenedioxythiophene)-sulfonated nanofibers for peripheral nerve repair. Carbohydr Polym 2022; 281:119044. [DOI: 10.1016/j.carbpol.2021.119044] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 12/21/2022]
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17
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Wang J, Li Q, Li K, Sun X, Wang Y, Zhuang T, Yan J, Wang H. Ultra-High Electrical Conductivity in Filler-Free Polymeric Hydrogels Toward Thermoelectrics and Electromagnetic Interference Shielding. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2109904. [PMID: 35064696 DOI: 10.1002/adma.202109904] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Conducting hydrogels have attracted much attention for the emerging field of hydrogel bioelectronics, especially poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) based hydrogels, because of their great biocompatibility and stability. However, the electrical conductivities of hydrogels are often lower than 1 S cm-1 which are not suitable for digital circuits or applications in bioelectronics. Introducing conductive inorganic fillers into the hydrogels can improve their electrical conductivities. However, it may lead to compromises in compliance, biocompatibility, deformability, biodegradability, etc. Herein, a series of highly conductive ionic liquid (IL) doped PEDOT:PSS hydrogels without any conductive fillers is reported. These hydrogels exhibit high conductivities up to ≈305 S cm-1 , which is ≈8 times higher than the record of polymeric hydrogels without conductive fillers in literature. The high electrical conductivity results in enhanced areal thermoelectric output power for hydrogel-based thermoelectric devices, and high specific electromagnetic interference (EMI) shielding efficiency which is about an order in magnitude higher than that of state-of-the-art conductive hydrogels in literature. Furthermore, these stretchable (strain >30%) hydrogels exhibit fast self-healing, and shape/size-tunable properties, which are desirable for hydrogel bioelectronics and wearable organic devices. The results indicate that these highly conductive hydrogels are promising in applications such as sensing, thermoelectrics, EMI shielding, etc.
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Affiliation(s)
- Jing Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Qing Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Kuncai Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Xu Sun
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Yizhuo Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Tiantian Zhuang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Junjie Yan
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
- School of energy and power engineering, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Hong Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710054, China
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710054, China
- School of energy and power engineering, Xi'an Jiaotong University, Xi'an, 710054, China
- Zhejiang YunFeng New Materials Technology Co., Ltd, No. 755 Hongji Street, Jinghua Zhejiang, 321015, China
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18
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Cellulosic-Based Conductive Hydrogels for Electro-Active Tissues: A Review Summary. Gels 2022; 8:gels8030140. [PMID: 35323253 PMCID: PMC8953959 DOI: 10.3390/gels8030140] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 12/14/2022] Open
Abstract
The use of hydrogel in tissue engineering is not entirely new. In the last six decades, researchers have used hydrogel to develop artificial organs and tissue for the diagnosis of real-life problems and research purposes. Trial and error dominated the first forty years of tissue generation. Nowadays, biomaterials research is constantly progressing in the direction of new materials with expanded capabilities to better meet the current needs. Knowing the biological phenomenon at the interaction among materials and the human body has promoted the development of smart bio-inert and bio-active polymeric materials or devices as a result of vigorous and consistent research. Hydrogels can be tailored to contain properties such as softness, porosity, adequate strength, biodegradability, and a suitable surface for adhesion; they are ideal for use as a scaffold to provide support for cellular attachment and control tissue shapes. Perhaps electrical conductivity in hydrogel polymers promotes the interaction of electrical signals among artificial neurons and simulates the physiological microenvironment of electro-active tissues. This paper presents a review of the current state-of-the-art related to the complete process of conductive hydrogel manufacturing for tissue engineering from cellulosic materials. The essential properties required by hydrogel for electro-active-tissue regeneration are explored after a short overview of hydrogel classification and manufacturing methods. To prepare hydrogel from cellulose, the base material, cellulose, is first synthesized from plant fibers or generated from bacteria, fungi, or animals. The natural chemistry of cellulose and its derivatives in the fabrication of hydrogels is briefly discussed. Thereafter, the current scenario and latest developments of cellulose-based conductive hydrogels for tissue engineering are reviewed with an illustration from the literature. Finally, the pro and cons of conductive hydrogels for tissue engineering are indicated.
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19
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Stimuli-responsive composite hydrogels with three-dimensional stability prepared using oxidized cellulose nanofibers and chitosan. Carbohydr Polym 2022; 278:118907. [PMID: 34973728 DOI: 10.1016/j.carbpol.2021.118907] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/25/2022]
Abstract
Stimuli-responsive hydrogels have garnered the attention of the hydrogel industry, as they are able to change their physical and chemical properties based on changing external stimuli such as pH, temperature, ionic strength, electromagnetic fields, and light. However, stimuli-responsive hydrogel applications are hindered due to their inevitable swelling and shrinkage. Bacterial cellulose (BC), a natural hydrogel with tightly packed cellulose nanofibers (CNFs) was oxidized into dialdehyde BC (DABC) and was composited with chitosan (CS), a readily available natural polymer, to develop a mechanically adaptive hydrogel composite under different pH conditions. Composites exhibit pH sensitivity by presenting higher mechanical properties under acidic conditions and lower mechanical properties under basic conditions owing to the protonation of amino groups of the chitosan chains. Osmotic pressure is built up under acidic conditions, increasing the mechanical strength of the composites. The good three-dimensional stability of composites enables them to consistently maintain their volume when exposed to acidic or basic conditions.
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20
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Chen Z, Tang J, Zhang N, Chen Y, Chen Y, Li H, Liu H. Dual-network sodium alginate/polyacrylamide/laponite nanocomposite hydrogels with high toughness and cyclic mechano-responsiveness. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127867] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Yang L, Shao H, Hong F, Qi H, Xie Y, Yu W, Dong X, Li D, Ma Q, Liu G. Pseudo-tricolor typed nanobelts and arrays simultaneously endowed with conductive anisotropy, magnetism and white fluorescence. Phys Chem Chem Phys 2022; 24:26211-26222. [DOI: 10.1039/d2cp02323g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Pseudo-tricolor typed nanobelts and arrays endowed with concurrent strong conductive anisotropy, tuned magnetism and white fluorescence are designed and constructed.
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Affiliation(s)
- Liu Yang
- Chongqing Research Institute, Changchun University of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Hong Shao
- Chongqing Research Institute, Changchun University of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Feng Hong
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Haina Qi
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
| | - Yunrui Xie
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Wensheng Yu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Xiangting Dong
- Chongqing Research Institute, Changchun University of Science and Technology, Chongqing 401135, China
- College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Dan Li
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Qianli Ma
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Guixia Liu
- Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
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22
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Li L, Meng J, Zhang M, Liu T, Zhang C. Recent advances in conductive polymer hydrogel composites and nanocomposites for flexible electrochemical supercapacitors. Chem Commun (Camb) 2021; 58:185-207. [PMID: 34881748 DOI: 10.1039/d1cc05526g] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Flexible electrochemical supercapacitors have shown great potential in the next-generation wearable and implantable energy-storage devices. Conductive polymer hydrogels usually possess unique porosity, high conductivity, and broadly tunable properties through molecular designs and structural regulations, thus holding tremendous promise as high-performance electrodes and electrolytes for flexible electrochemical supercapacitors. Numerous chemical and structural designs have provided unlimited opportunities to tune the properties of conductive polymer hydrogels to match the various practical demands. Various electrically and ionically conductive hydrogels have been developed to fabricate novel electrodes and electrolytes with satisfactory mechanical and electrochemical performance. This feature article focuses on the fabrication and applications of conductive polymer hydrogel composites and nanocomposites as respective electrodes and electrolytes for flexible electrochemical supercapacitors. First, we introduce the representative strategies to prepare electrically and ionically conductive polymer hydrogels. Second, conductive polymer hydrogel composites and nanocomposites as supercapacitor electrodes and electrolytes are presented and discussed. Finally, challenges and perspectives on conductive polymer hydrogel composites and nanocomposites for future flexible electrochemical supercapacitors are presented.
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Affiliation(s)
- Le Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Jian Meng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Mingtong Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Chao Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
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23
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Li W, Zhao X, Huang T, Ren Y, Gong W, Guo Y, Wang J, Tu Q. Preparation of sodium hyaluronate/dopamine/AgNPs hydrogel based on the natural eutetic solvent as an antibaterial wound dressing. Int J Biol Macromol 2021; 191:60-70. [PMID: 34536470 DOI: 10.1016/j.ijbiomac.2021.09.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/05/2021] [Accepted: 09/10/2021] [Indexed: 12/23/2022]
Abstract
Baesd on previous researches, the natural deep eutectic solvent (DES) has enormous potential to be used in the fabrication of hydrogel wound dressing due to its outstanding properties including cytocompatibility, degradability and solubility. In order to further improve the antibaterial capacity of hydrogel, in the present study sodium hyaluronate (SH) and the natural DES were utilized to develop a novel hydrogel wound dressing by dopamine (DA) coated SH with in situ reduction of silver nanoparticles (DES-DASH@Ag). Furthermore, during the preparation process, we discovered for the first time that the DES can be used to fill the freeze-dried DASH to prepare a hydrogel (DES-DASH), which was promising to utilized in the fabrication of other hydrogels. Besides, the chemical and physical properties as well as wound healing capacity of the DES-DASH@Ag hydrogel were characterized. As a result, the DES-DASH@Ag hydrogel presented good cytocompatibility tested using NIH-3 T3 fibroblast cells, and prominent antibacterial effect against two types of bacteria infecting exposed wound. Furthermore, the hydrogel facilitated regeneration of mouse skin tissue in the wound area. The overall performance of DES-DASH@Ag hydrogel suggested that it could be a promising wound dressing in modern medicine.
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Affiliation(s)
- Wen Li
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xinyao Zhao
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Ting Huang
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yu Ren
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Wanxin Gong
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Yuhui Guo
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Jinyi Wang
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
| | - Qin Tu
- College of Chemistry & Pharmacy and Life Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
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24
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Zhang Z, Jiang W, Xie X, Liang H, Chen H, Chen K, Zhang Y, Xu W, Chen M. Recent Developments of Nanomaterials in Hydrogels: Characteristics, Influences, and Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202103528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Zongzheng Zhang
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Wenqing Jiang
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Xinmin Xie
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Haiqing Liang
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Hao Chen
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Kun Chen
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Ying Zhang
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Wenlong Xu
- School of Chemistry and Materials Science Ludong University Yantai 264025 China
| | - Mengjun Chen
- School of Qilu Transportation Shandong University Jinan 250002 China
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Chen Z, Chen Y, Hedenqvist MS, Chen C, Cai C, Li H, Liu H, Fu J. Multifunctional conductive hydrogels and their applications as smart wearable devices. J Mater Chem B 2021; 9:2561-2583. [PMID: 33599653 DOI: 10.1039/d0tb02929g] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recently, hydrogel-based conductive materials and their applications as smart wearable devices have been paid tremendous attention due to their high stretchability, flexibility, and excellent biocompatibility. Compared with single functional conductive hydrogels, multifunctional conductive hydrogels are more advantageous to match various demands for practical applications. This review focuses on multifunctional conductive hydrogels applied for smart wearable devices. Representative strategies for conduction of hydrogels are discussed firstly: (1) electronic conduction based on the conductive fillers and (2) ionic conduction based on charged ions. Then, the common and intensive research on multiple functionalities of conductive hydrogels, such as mechanical properties, conductive and sensory properties, anti-freezing and moisturizing properties, and adhesion and self-healing properties is presented. The applications of multifunctional conductive hydrogels such as in human motion sensors, sensory skins, and personal healthcare diagnosis are provided in the third part. Finally, we offer our perspective on open challenges and future areas of interest for multifunctional conductive hydrogels used as smart wearable devices.
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Affiliation(s)
- Zhen Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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