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Zhao D, Cheng Q, Geng H, Liu J, Zhang Y, Cui J, Liu C, Cheng L. Decoding Macrophage Subtypes to Engineer Modulating Hydrogels for the Alleviation of Intervertebral Disk Degeneration. Adv Sci (Weinh) 2024; 11:e2304480. [PMID: 37939288 PMCID: PMC10767410 DOI: 10.1002/advs.202304480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/26/2023] [Indexed: 11/10/2023]
Abstract
A major pathological basis for low back pain is intervertebral disk degeneration, which is primarily caused by the degeneration of nucleus pulposus cells due to imbalances in extracellular matrix (ECM) anabolism and catabolism. The phenotype of macrophages in the local immune microenvironment greatly influences the balance of ECM metabolism. Therefore, the control over the macrophage phenotype of the ECM is promising to repair intervertebral disk degeneration. Herein, the preparation of an injectable nanocomposite hydrogel is reported by embedding epigallocatechin-3-gallate-coated hydroxyapatite nanorods in O-carboxymethyl chitosan cross-linked with aldehyde hyaluronic acid that is capable of modulating the phenotype of macrophages. The bioactive components play a primary role in repairing the nucleus pulposus, where the hydroxyapatite nanorods can promote anabolism in the ECM through the nucleopulpogenic differentiation of mesenchymal stem cells. In addition, epigallocatechin-3-gallate can decrease catabolism in the ECM in nucleus pulposus by inducing M2 macrophage polarization, which exists in normal intervertebral disks and can alleviate degeneration. The nanocomposite hydrogel system shows promise for the minimally invasive and effective treatment of intervertebral disk degeneration by controlling anabolism and catabolism in the ECM and inhibiting the IL17 signaling pathway (M1-related pathway) in vitro and in vivo.
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Affiliation(s)
- Da‐Wang Zhao
- Department of OrthopedicsQilu Hospital of Shandong UniversityJinanShandong250012China
| | - Qian Cheng
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinanShandong250100China
| | - Huimin Geng
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinanShandong250100China
| | - Jinbo Liu
- Department of OrthopedicsQilu Hospital of Shandong UniversityJinanShandong250012China
| | - Yuanqiang Zhang
- Department of OrthopedicsQilu Hospital of Shandong UniversityJinanShandong250012China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of EducationSchool of Chemistry and Chemical EngineeringShandong UniversityJinanShandong250100China
| | - Chao Liu
- Department of Oral and Maxillofacial SurgeryQilu Hospital of Shandong UniversityJinanShandong250012China
- Department of Oral Surgery, Shanghai Key Laboratory of StomatologyNational Clinical Research Center of StomatologyNinth People's HospitalShanghai Jiao Tong University School of MedicineShanghai200011China
| | - Lei Cheng
- Department of OrthopedicsQilu Hospital of Shandong UniversityJinanShandong250012China
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Kaliaraj GS, Shanmugam DK, Dasan A, Mosas KKA. Hydrogels-A Promising Materials for 3D Printing Technology. Gels 2023; 9:gels9030260. [PMID: 36975708 PMCID: PMC10048566 DOI: 10.3390/gels9030260] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
Hydrogels are a promising material for a variety of applications after appropriate functional and structural design, which alters the physicochemical properties and cell signaling pathways of the hydrogels. Over the past few decades, considerable scientific research has made breakthroughs in a variety of applications such as pharmaceuticals, biotechnology, agriculture, biosensors, bioseparation, defense, and cosmetics. In the present review, different classifications of hydrogels and their limitations have been discussed. In addition, techniques involved in improving the physical, mechanical, and biological properties of hydrogels by admixing various organic and inorganic materials are explored. Future 3D printing technology will substantially advance the ability to pattern molecules, cells, and organs. With significant potential for producing living tissue structures or organs, hydrogels can successfully print mammalian cells and retain their functionalities. Furthermore, recent advances in functional hydrogels such as photo- and pH-responsive hydrogels and drug-delivery hydrogels are discussed in detail for biomedical applications.
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Affiliation(s)
- Gobi Saravanan Kaliaraj
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Dilip Kumar Shanmugam
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600 119, India
| | - Arish Dasan
- FunGlass-Centre for Functional and Surface Functionalised Glass, Alexander Dubcek University of Trencin, 91150 Trencin, Slovakia
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Leon-Cecilla A, Vazquez-Perez FJ, Gila-Vilchez C, Álvarez de Cienfuegos L, Lopez-Lopez MT. Alginate Hydrogels Reinforced by Dehydration under Stress-Application to a Soft Magnetic Actuator. Gels 2023; 9. [PMID: 36661805 DOI: 10.3390/gels9010039] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 01/06/2023] Open
Abstract
We investigated the effect of partial dehydration under mechanical stress in the properties of alginate hydrogels. For this aim, we characterized the mechanical properties of the hydrogels under tensile and shear stress, as well as their swelling behavior, macroscopic appearance, and microscopic structure. We found that the processes of dehydration under a mechanical stress were irreversible with fully rehydration being impossible. What is more, these processes gave rise to an enhancement of the mechanical robustness of the hydrogels beyond the effect due to the increase in polymer concentration caused by dehydration. Finally, we analyzed the applicability of these results to alginate-based magnetic hydrogel grippers that bended in response to an applied magnetic field. Remarkably, our study demonstrated that the dehydration of the magnetic hydrogels under compression facilitated their bending response.
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Liu G, Sun X, Li X, Wang Z. The Bioanalytical and Biomedical Applications of Polymer Modified Substrates. Polymers (Basel) 2022; 14:826. [PMID: 35215740 DOI: 10.3390/polym14040826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 01/11/2023] Open
Abstract
Polymers with different structures and morphology have been extensively used to construct functionalized surfaces for a wide range of applications because the physicochemical properties of polymers can be finely adjusted by their molecular weights, polydispersity and configurations, as well as the chemical structures and natures of monomers. In particular, the specific functions of polymers can be easily achieved at post-synthesis by the attachment of different kinds of active molecules such as recognition ligand, peptides, aptamers and antibodies. In this review, the recent advances in the bioanalytical and biomedical applications of polymer modified substrates were summarized with subsections on functionalization using branched polymers, polymer brushes and polymer hydrogels. The review focuses on their applications as biosensors with excellent analytical performance and/or as nonfouling surfaces with efficient antibacterial activity. Finally, we discuss the perspectives and future directions of polymer modified substrates in the development of biodevices for the diagnosis, treatment and prevention of diseases.
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Meng X, Qiao Y, Do C, Bras W, He C, Ke Y, Russell TP, Qiu D. Hysteresis-Free Nanoparticle-Reinforced Hydrogels. Adv Mater 2022; 34:e2108243. [PMID: 34837255 DOI: 10.1002/adma.202108243] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/21/2021] [Indexed: 06/13/2023]
Abstract
The elastic storage and release of mechanical energy has been key to many developments throughout the history of mankind. Resilience, absent hysteresis, has been an elusive goal to achieve, particularly at large deformations. Using a low-crosslink-density polyacrylamide hydrogel at 96% water content having hyperbranched silica nanoparticles (HBSPs) as the major junction points, a hysteresis-free material is realized. The fatigue-free characteristic of these composite hydrogels is evidenced by the invariance of the stress-strain curves at strain ratios of 4, even after 5000 cycles. At a strain ratio of 7, only a 1.3% hysteresis is observed. A markedly increased strain-ratio-at-break of 11.5 is observed. The unique attributes of these resilient hydrogels are manifested in the high-fidelity detection of dynamic deformations under cyclic loading over a broad range of frequencies, difficult to achieve with other materials.
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Affiliation(s)
- Xiaohui Meng
- Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yan Qiao
- Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Changwoo Do
- Oak Ridge National Laboratory, Neutron Scattering Division, One Bethel Valley Road, Oak Ridge, TN, 37831, USA
| | - Wim Bras
- Oak Ridge National Laboratory, Chemical Sciences Division, One Bethel Valley Road, Oak Ridge, TN, 37831, USA
| | - Chunyong He
- Spallation Neutron Source Science Center, Dongguan, 523803, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Yubin Ke
- Spallation Neutron Source Science Center, Dongguan, 523803, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Thomas P Russell
- Polymer Science and Engineering Department, University of Massachusetts Amherst, Amherst, MA, 01003, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Dong Qiu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Jia F, Kubiak JM, Onoda M, Wang Y, Macfarlane RJ. Design and Synthesis of Quick Setting Nonswelling Hydrogels via Brush Polymers. Adv Sci (Weinh) 2021; 8:e2100968. [PMID: 34151547 PMCID: PMC8373163 DOI: 10.1002/advs.202100968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Indexed: 05/25/2023]
Abstract
Brush polymers have emerged as components of novel materials that show huge potential in multiple disciplines and applications, including self-assembling photonic crystals, drug delivery vectors, biomimetic lubricants, and ultrasoft elastomers. However, an understanding of how this unique topology can affect the properties of highly solvated materials like hydrogels remain under investigated. Here, it is investigated how the high functionality and large overall size of brush polymers enhances the gelation kinetics of low polymer weight percent gels, enabling 100-fold faster gelation rates and 15-fold higher stiffness values than gels crosslinked by traditional star polymers of the same composition and polymer chain length. This work demonstrates that brush polymer topology provides a useful means to control gelation kinetics without the need to manipulate polymer composition or crosslinking chemistry. The unique architecture of brush polymers also results in restrained or even nonswelling behavior at different temperatures, regardless of the polymer concentration. Brush polymers therefore are an interesting tool for examining how high-functionality polymer building blocks can affect structure-property relationships and chemical kinetics in hydrogel materials, and also provide a useful rapidly-setting hydrogel platform with tunable properties and great potential for multiple material applications.
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Affiliation(s)
- Fei Jia
- Department of Materials Science and EngineeringMassachusetts Institute of Technology (MIT)77 Massachusetts AvenueCambridgeMA02139USA
| | - Joshua M. Kubiak
- Department of Materials Science and EngineeringMassachusetts Institute of Technology (MIT)77 Massachusetts AvenueCambridgeMA02139USA
| | - Michika Onoda
- Department of Materials Science and EngineeringMassachusetts Institute of Technology (MIT)77 Massachusetts AvenueCambridgeMA02139USA
| | - Yuping Wang
- Department of Materials Science and EngineeringMassachusetts Institute of Technology (MIT)77 Massachusetts AvenueCambridgeMA02139USA
| | - Robert J. Macfarlane
- Department of Materials Science and EngineeringMassachusetts Institute of Technology (MIT)77 Massachusetts AvenueCambridgeMA02139USA
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Abstract
Energy dissipation, a ubiquitous process in biological systems, has been intensively studied and widely used to guide the transient assembly of natural or synthetic molecules, but very few examples of material transient healability controlled by this important process have been reported. Herein, we realize the healing of creep-resistant and kinetically inert polymer hydrogels that is driven by the respiration of baker's yeast (Saccharomyces cerevisiae) and spontaneous energy dissipation. The entire healing process can be simply controlled by a single variable: sucrose concentration. Due to the high activity and stability of yeast in the hydrogels, multiple local healing events become possible and healing of damaged hydrogels is also efficient after a long waiting time. All these results indicate that our yeast-containing polymer hydrogels are kinetically stable materials, which can be readily healable on demand.
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Affiliation(s)
- Yuanbo Zhong
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Tian Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong 250012, China
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China.,Shenzhen Research Institute of Shandong University, Shenzhen, Guangdong 518057, China
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Jin Y, Yang T, Ju S, Zhang H, Choi TY, Neogi A. Thermally Tunable Dynamic and Static Elastic Properties of Hydrogel Due to Volumetric Phase Transition. Polymers (Basel) 2020; 12:E1462. [PMID: 32629821 DOI: 10.3390/polym12071462] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/24/2020] [Accepted: 06/28/2020] [Indexed: 11/17/2022] Open
Abstract
The temperature dependence of the mechanical properties of polyvinyl alcohol-based poly n-isopropyl acrylamide (PVA-PNIPAm) hydrogel was studied from the static and dynamic bulk modulus of the material. The effect of the temperature-induced volumetric phase transition on Young’s Modulus, Poisson’s ratio, and the density of PVA-PNIPAm was experimentally measured and compared with a non-thermo-responsive Alginate hydrogel as a reference. An increase in the temperature from 27.5 to 32 °C results in the conventional temperature-dependent de-swelling of the PVA-PNIPAm hydrogel volume of up to 70% at the lower critical solution temperature (LCST). However, with the increase in temperature, the PVA-PNIPAm hydrogel showed a drastic increase in Young’s Modulus and density of PVA-PNIPAm and a corresponding decrease in the Poisson’s ratio and the static bulk modulus around the LCST temperature. The dynamic bulk modulus of the PVA-PNIPAm hydrogel is highly frequency-dependent before the LCST and highly temperature-sensitive after the LCST. The dynamic elastic properties of the thermo-responsive PVA-PNIPAm hydrogel were compared and observed to be significantly different from the thermally insensitive Alginate hydrogel.
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