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Du X, Zhou Y, Schümperlin D, Laganenka L, Lee SS, Blugan G, Hardt WD, Persson C, Ferguson SJ. Fabrication and characterization of sodium alginate-silicon nitride-PVA composite biomaterials with damping properties. J Mech Behav Biomed Mater 2024; 155:106579. [PMID: 38749266 DOI: 10.1016/j.jmbbm.2024.106579] [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: 01/30/2024] [Revised: 03/22/2024] [Accepted: 05/08/2024] [Indexed: 05/28/2024]
Abstract
Silicon nitride is utilized clinically as a bioceramic for spinal fusion cages, owing to its high strength, osteoconductivity, and antibacterial effects. Nevertheless, silicon nitride exhibits suboptimal damping properties, a critical factor in mitigating traumatic bone injuries and fractures. In fact, there is a scarcity of spinal implants that simultaneously demonstrate proficient damping performance and support osteogenesis. In our study, we fabricated a novel sodium alginate-silicon nitride/poly(vinyl alcohol) (SA-SiN/PVA) composite scaffold, enabling enhanced energy absorption and rapid elastic recovery under quasi-static and impact loading scenarios. Furthermore, the study demonstrated that the incorporation of physical and chemical cross-linking significantly improved stiffness and recoverable energy dissipation. Concerning the interaction between cells and materials, our findings suggest that the addition of silicon nitride stimulated osteogenic differentiation while inhibiting Staphylococcus aureus growth. Collectively, the amalgamation of ceramics and tough hydrogels facilitates the development of advanced composites for spinal implants, manifesting superior damping, osteogenic potential, and antibacterial properties. This approach holds broader implications for applications in bone tissue engineering.
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Affiliation(s)
- Xiaoyu Du
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland.
| | - Yijun Zhou
- Division of Biomedical Engineering, Department of Materials Science and Engineering, Uppsala University, Uppsala, Sweden
| | | | - Leanid Laganenka
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Seunghun S Lee
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland; Department of Biomedical Engineering, Dongguk University-Seoul, Seoul, South Korea
| | - Gurdial Blugan
- Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dubendorf, Switzerland
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, ETH Zurich, Zurich, Switzerland
| | - Cecilia Persson
- Division of Biomedical Engineering, Department of Materials Science and Engineering, Uppsala University, Uppsala, Sweden
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2
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Carriero VC, Di Muzio L, Petralito S, Casadei MA, Paolicelli P. Cryogel Scaffolds for Tissue-Engineering: Advances and Challenges for Effective Bone and Cartilage Regeneration. Gels 2023; 9:979. [PMID: 38131965 PMCID: PMC10742915 DOI: 10.3390/gels9120979] [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: 11/14/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Critical-sized bone defects and articular cartilage injuries resulting from trauma, osteonecrosis, or age-related degeneration can be often non-healed by physiological repairing mechanisms, thus representing a relevant clinical issue due to a high epidemiological incidence rate. Novel tissue-engineering approaches have been proposed as an alternative to common clinical practices. This cutting-edge technology is based on the combination of three fundamental components, generally referred to as the tissue-engineering triad: autologous or allogenic cells, growth-stimulating factors, and a scaffold. Three-dimensional polymer networks are frequently used as scaffolds to allow cell proliferation and tissue regeneration. In particular, cryogels give promising results for this purpose, thanks to their peculiar properties. Cryogels are indeed characterized by an interconnected porous structure and a typical sponge-like behavior, which facilitate cellular infiltration and ingrowth. Their composition and the fabrication procedure can be appropriately tuned to obtain scaffolds that match the requirements of a specific tissue or organ to be regenerated. These features make cryogels interesting and promising scaffolds for the regeneration of different tissues, including those characterized by very complex mechanical and physical properties, such as bones and joints. In this review, state-of-the-art fabrication and employment of cryogels for supporting effective osteogenic or chondrogenic differentiation to allow for the regeneration of functional tissues is reported. Current progress and challenges for the implementation of this technology in clinical practice are also highlighted.
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Affiliation(s)
| | | | | | | | - Patrizia Paolicelli
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (V.C.C.); (L.D.M.); (S.P.); (M.A.C.)
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3
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Lee SS, Kleger N, Kuhn GA, Greutert H, Du X, Smit T, Studart AR, Ferguson SJ. A 3D-Printed Assemblable Bespoke Scaffold as a Versatile Microcryogel Carrier for Site-Specific Regenerative Medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302008. [PMID: 37632210 DOI: 10.1002/adma.202302008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/22/2023] [Indexed: 08/27/2023]
Abstract
Advances in additive manufacturing have led to diverse patient-specific implant designs utilizing computed tomography, but this requires intensive work and financial implications. Here, Digital Light Processing is used to fabricate a hive-structured assemblable bespoke scaffold (HIVE). HIVE can be manually assembled in any shape/size with ease, so a surgeon can create a scaffold that will best fit a defect before implantation. Simultaneously, it can have site-specific treatments by working as a carrier filled with microcryogels (MC) incorporating different biological factors in different pockets of HIVE. After characterization, possible site-specific applications are investigated by utilizing HIVE as a versatile carrier with incorporated treatments such as growth factors (GF), bioceramic, or cells. HIVE as a GF-carrier shows a controlled release of bone morphogenetic protein/vascular endothelial growth factor (BMP/VEGF) and induced osteogenesis/angiogenesis from human mesenchymal stem cells (hMSC)/human umbilical vein endothelial cells (HUVECs). Furthermore, as a bioceramic-carrier, HIVE demonstrates enhanced mineralization and osteogenesis, and as a HUVEC carrier, it upregulates both osteogenic and angiogenic gene expression of hMSCs. HIVE with different combinations of MCs yields a distinct local effect and successful cell migration is confirmed within assembled HIVEs. Finally, an in vivo rat subcutaneous implantation demonstrates site-specific osteogenesis and angiogenesis.
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Affiliation(s)
- Seunghun S Lee
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
| | - Nicole Kleger
- Complex Materials, Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
| | - Gisela A Kuhn
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
| | - Helen Greutert
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
| | - Xiaoyu Du
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
| | - Thijs Smit
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
| | - André R Studart
- Complex Materials, Department of Materials, ETH Zurich, Zurich, 8093, Switzerland
| | - Stephen J Ferguson
- Institute for Biomechanics, Department of Health Sciences and Technology, ETH Zurich, Zurich, 8092, Switzerland
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4
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Sivakumar PM, Yetisgin AA, Demir E, Sahin SB, Cetinel S. Polysaccharide-bioceramic composites for bone tissue engineering: A review. Int J Biol Macromol 2023; 250:126237. [PMID: 37567538 DOI: 10.1016/j.ijbiomac.2023.126237] [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: 04/05/2023] [Revised: 07/05/2023] [Accepted: 08/07/2023] [Indexed: 08/13/2023]
Abstract
Limitations associated with conventional bone substitutes such as autografts, increasing demand for bone grafts, and growing elderly population worldwide necessitate development of unique materials as bone graft substitutes. Bone tissue engineering (BTE) would ensure therapy advancement, efficiency, and cost-effective treatment modalities of bone defects. One way of engineering bone tissue scaffolds by mimicking natural bone tissue composed of organic and inorganic phases is to utilize polysaccharide-bioceramic hybrid composites. Polysaccharides are abundant in nature, and present in human body. Biominerals, like hydroxyapatite are present in natural bone and some of them possess osteoconductive and osteoinductive properties. Ion doped bioceramics could substitute protein-based biosignal molecules to achieve osteogenesis, vasculogenesis, angiogenesis, and stress shielding. This review is a systemic summary on properties, advantages, and limitations of polysaccharide-bioceramic/ion doped bioceramic composites along with their recent advancements in BTE.
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Affiliation(s)
- Ponnurengam Malliappan Sivakumar
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey; Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam; School of Medicine and Pharmacy, Duy Tan University, Da Nang 550000, Viet Nam.
| | - Abuzer Alp Yetisgin
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey; Sabanci University, Faculty of Engineering and Natural Sciences, Materials Science and Nano-Engineering Program, Istanbul 34956, Turkey
| | - Ebru Demir
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey; Sabanci University, Faculty of Engineering and Natural Sciences, Molecular Biology, Genetics and Bioengineering Program, Istanbul 34956, Turkey
| | - Sevilay Burcu Sahin
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey; Sabanci University, Faculty of Engineering and Natural Sciences, Molecular Biology, Genetics and Bioengineering Program, Istanbul 34956, Turkey
| | - Sibel Cetinel
- Nanotechnology Research and Application Center (SUNUM), Sabanci University, Istanbul 34956, Turkey; Sabanci University, Faculty of Engineering and Natural Sciences, Molecular Biology, Genetics and Bioengineering Program, Istanbul 34956, Turkey.
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5
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Du X, Ronayne S, Lee SS, Hendry J, Hoxworth D, Bock R, Ferguson SJ. 3D-Printed PEEK/Silicon Nitride Scaffolds with a Triply Periodic Minimal Surface Structure for Spinal Fusion Implants. ACS APPLIED BIO MATERIALS 2023; 6:3319-3329. [PMID: 37561906 PMCID: PMC10445264 DOI: 10.1021/acsabm.3c00383] [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] [Received: 05/29/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
The issue of spine-related disorders is a global healthcare concern that requires effective solutions to restore normal spine functioning. Spinal fusion implants have become a standard approach for this purpose, making it crucial to develop biomaterials and structures that possess high osteogenic capacities and exhibit mechanical properties and dynamic responses similar to those of the host bone. This study focused on the fabrication of 3D-printed polyether ether ketone/silicon nitride (PEEK/SiN) scaffolds with a triply periodic minimal surface (TPMS) structure, which offers several advantages, such as a large surface area and uniform stress distribution under load. The mechanical properties and dynamic response of PEEK/SiN scaffolds with varying porosities were evaluated through mechanical testing and finite element analysis. The scaffold with 30% porosity exhibited a compressive strength (34.56 ± 1.91 MPa) and elastic modulus (734 ± 64 MPa) similar to those of trabecular bone. In addition, the scaffold demonstrated favorable damping properties. The biological data revealed that incorporating silicon nitride into the PEEK scaffold stimulated osteogenic differentiation. In light of these findings, it can be inferred that PEEK/SiN TPMS scaffolds exhibit significant potential for use in bone tissue engineering and represent a promising option as candidates for spinal fusion implants.
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Affiliation(s)
- Xiaoyu Du
- Institute
for Biomechanics,ETH Zurich, Zurich 8093, Switzerland
| | - Sean Ronayne
- SINTX
Technologies, Inc., Salt Lake City, Utah 84119, United States
| | - Seunghun S. Lee
- Institute
for Biomechanics,ETH Zurich, Zurich 8093, Switzerland
| | - Jackson Hendry
- SINTX
Technologies, Inc., Salt Lake City, Utah 84119, United States
| | - Douglas Hoxworth
- SINTX
Technologies, Inc., Salt Lake City, Utah 84119, United States
| | - Ryan Bock
- SINTX
Technologies, Inc., Salt Lake City, Utah 84119, United States
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6
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Shi H, Zhou K, Wang M, Wang N, Song Y, Xiong W, Guo S, Yi Z, Wang Q, Yang S. Integrating physicomechanical and biological strategies for BTE: biomaterials-induced osteogenic differentiation of MSCs. Theranostics 2023; 13:3245-3275. [PMID: 37351163 PMCID: PMC10283054 DOI: 10.7150/thno.84759] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/12/2023] [Indexed: 06/24/2023] Open
Abstract
Large bone defects are a major global health concern. Bone tissue engineering (BTE) is the most promising alternative to avoid the drawbacks of autograft and allograft bone. Nevertheless, how to precisely control stem cell osteogenic differentiation has been a long-standing puzzle. Compared with biochemical cues, physicomechanical stimuli have been widely studied for their biosafety and stability. The mechanical properties of various biomaterials (polymers, bioceramics, metal and alloys) become the main source of physicomechanical stimuli. By altering the stiffness, viscoelasticity, and topography of materials, mechanical stimuli with different strengths transmit into precise signals that mediate osteogenic differentiation. In addition, externally mechanical forces also play a critical role in promoting osteogenesis, such as compression stress, tensile stress, fluid shear stress and vibration, etc. When exposed to mechanical forces, mesenchymal stem cells (MSCs) differentiate into osteogenic lineages by sensing mechanical stimuli through mechanical sensors, including integrin and focal adhesions (FAs), cytoskeleton, primary cilium, ions channels, gap junction, and activating osteogenic-related mechanotransduction pathways, such as yes associated proteins (YAP)/TAZ, MAPK, Rho-GTPases, Wnt/β-catenin, TGFβ superfamily, Notch signaling. This review summarizes various biomaterials that transmit mechanical signals, physicomechanical stimuli that directly regulate MSCs differentiation, and the mechanical transduction mechanisms of MSCs. This review provides a deep and broad understanding of mechanical transduction mechanisms and discusses the challenges that remained in clinical translocation as well as the outlook for the future improvements.
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Affiliation(s)
- Huixin Shi
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Kaixuan Zhou
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Mingfeng Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Ning Wang
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Yiping Song
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Wei Xiong
- Department of Plastic Surgery, The First Affiliated Hospital of Medical College of Shihezi University, Shihezi, Xinjiang 832008, China
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, China
| | - Zhe Yi
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Shude Yang
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang 110001, China
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
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7
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Yunsheng D, Hui X, Jie W, Tingting Y, Naiqi K, Jiaxing H, Wei C, Yufei L, Qiang Y, Shufang W. Sustained release silicon from 3D bioprinting scaffold using silk/gelatin inks to promote osteogenesis. Int J Biol Macromol 2023; 234:123659. [PMID: 36796557 DOI: 10.1016/j.ijbiomac.2023.123659] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/20/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023]
Abstract
Repairing extensive bone defects that cannot self-heal has been a clinical challenge. The construction of scaffolds with osteogenic activity through tissue engineering can provide an effective strategy for bone regeneration. This study utilized gelatin, silk fibroin, and Si3N4 as scaffold materials to prepare silicon-functionalized biomacromolecules composite scaffolds using three-dimensional printing (3DP) technology. This system delivered positive outcomes when Si3N4 levels were 1 % (1SNS). The results showed that the scaffold had a porous reticular structure with a pore size of 600-700 μm. The Si3N4 nanoparticles were distributed uniformly in the scaffold. The scaffold could release Si ions for up to 28 days. In vitro experiments showed that the scaffold had good cytocompatibility, promoting the osteogenic differentiation of mesenchymal stem cells (MSCs). In vivo experiments on bone defects in rats showed that the 1SNS group facilitated bone regeneration. Therefore, the composite scaffold system showed potential for application in bone tissue engineering.
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Affiliation(s)
- Dong Yunsheng
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Xiao Hui
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Wang Jie
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Yang Tingting
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Kang Naiqi
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Huang Jiaxing
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Cui Wei
- Qingdao Alticera Advanced Materials Co., Ltd, 266299 Shan Dong, China
| | - Liu Yufei
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China
| | - Yang Qiang
- Department of Spine Surgery, Tianjin Hospital, Tianjin University, 300211 Tianjin, China.
| | - Wang Shufang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, The College of Life Science, Nankai University, 300071 Tianjin, China.
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8
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Zhao Q, Gao S. Poly (Butylene Succinate)/Silicon Nitride Nanocomposite with Optimized Physicochemical Properties, Biocompatibility, Degradability, and Osteogenesis for Cranial Bone Repair. J Funct Biomater 2022; 13:jfb13040231. [PMID: 36412871 PMCID: PMC9680472 DOI: 10.3390/jfb13040231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/15/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
Congenital disease, tumors, infections, and trauma are the main reasons for cranial bone defects. Herein, poly (butylene succinate) (PB)/silicon nitride (Si3N4) nanocomposites (PSC) with Si3N4 content of 15 w% (PSC15) and 30 w% (PSC30) were fabricated for cranial bone repair. Compared with PB, the compressive strength, hydrophilicity, surface roughness, and protein absorption of nanocomposites were increased with the increase in Si3N4 content (from 15 w% to 30 w%). Furthermore, the cell adhesion, multiplication, and osteoblastic differentiation on PSC were significantly enhanced with the Si3N4 content increasing in vitro. PSC30 exhibited optimized physicochemical properties (compressive strength, surface roughness, hydrophilicity, and protein adsorption) and cytocompatibility. The m-CT and histological results displayed that the new bone formation for SPC30 obviously increased compared with PB, and PSC30 displayed proper degradability (75.3 w% at 12 weeks) and was gradually replaced by new bone tissue in vivo. The addition of Si3N4 into PB not only optimized the surface performances of PSC but also improved the degradability of PSC, which led to the release of Si ions and a weak alkaline environment that significantly promoted cell response and tissue regeneration. In short, the enhancements of cellular responses and bone regeneration of PSC30 were attributed to the synergism of the optimized surface performances and slow release of Si ion, and PSC30 were better than PB. Accordingly, PSC30, with good biocompatibility and degradability, displayed a promising and huge potential for cranial bone construction.
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9
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Shen Y, Fang K, Xiang Y, Xu K, Yu L, Chen J, Ma P, Cai K, Shen X, Liu J. Improvement in osteogenesis, vascularization, and corrosion resistance of titanium with silicon-nitride doped micro-arc oxidation coatings. Front Bioeng Biotechnol 2022; 10:1023032. [PMID: 36324887 PMCID: PMC9621325 DOI: 10.3389/fbioe.2022.1023032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/28/2022] [Indexed: 11/13/2022] Open
Abstract
Titanium (Ti) implants have been widely used for the treatment of tooth loss due to their excellent biocompatibility and mechanical properties. However, modifying the biological properties of these implants to increase osteointegration remains a research challenge. Additionally, the continuous release of various metal ions in the oral microenvironment due to fluid corrosion can also lead to implant failure. Therefore, simultaneously improving the bioactivity and corrosion resistance of Ti-based materials is an urgent need. In recent decades, micro-arc oxidation (MAO) has been proposed as a surface modification technology to form a surface protective oxide layer and improve the comprehensive properties of Ti. The present study doped nano silicon nitride (Si3N4) particles into the Ti surface by MAO treatment to improve its corrosion resistance and provide excellent osteoinduction by enhancing alkaline phosphatase activity and osteogenic-related gene expression. In addition, due to the presence of silicon, the Si3N4-doped materials showed excellent angiogenesis properties, including the promotion of cell migration and tubule formation, which play essential roles in early recovery after implantation.
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Affiliation(s)
- Yiding Shen
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Kai Fang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Yun Xiang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Keyuan Xu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Liang Yu
- School and Hospital of Stomatology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiaquan Chen
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Pingping Ma
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Kaiyong Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
- *Correspondence: Kaiyong Cai, ; Xinkun Shen, ; Jinsong Liu,
| | - Xinkun Shen
- Science and Education Division, The Third Affiliated Hospital of Wenzhou Medical University (Ruian People’s Hospital), Wenzhou, China
- *Correspondence: Kaiyong Cai, ; Xinkun Shen, ; Jinsong Liu,
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
- *Correspondence: Kaiyong Cai, ; Xinkun Shen, ; Jinsong Liu,
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10
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Recent Advances in Macroporous Hydrogels for Cell Behavior and Tissue Engineering. Gels 2022; 8:gels8100606. [PMID: 36286107 PMCID: PMC9601978 DOI: 10.3390/gels8100606] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/07/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Hydrogels have been extensively used as scaffolds in tissue engineering for cell adhesion, proliferation, migration, and differentiation because of their high-water content and biocompatibility similarity to the extracellular matrix. However, submicron or nanosized pore networks within hydrogels severely limit cell survival and tissue regeneration. In recent years, the application of macroporous hydrogels in tissue engineering has received considerable attention. The macroporous structure not only facilitates nutrient transportation and metabolite discharge but also provides more space for cell behavior and tissue formation. Several strategies for creating and functionalizing macroporous hydrogels have been reported. This review began with an overview of the advantages and challenges of macroporous hydrogels in the regulation of cellular behavior. In addition, advanced methods for the preparation of macroporous hydrogels to modulate cellular behavior were discussed. Finally, future research in related fields was discussed.
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11
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Beurton J, Boudier A, Barozzi Seabra A, Vrana NE, Clarot I, Lavalle P. Nitric Oxide Delivering Surfaces: An Overview of Functionalization Strategies and Efficiency Progress. Adv Healthc Mater 2022; 11:e2102692. [PMID: 35358359 DOI: 10.1002/adhm.202102692] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/27/2022] [Indexed: 12/15/2022]
Abstract
An overview on the design of nitric oxide (NO) delivering surfaces for biomedical purposes is provided, with a focus on the advances of the past 5 years. A localized supply of NO is of a particular interest due to the pleiotropic biological effects of this diatomic compound. Depending on the generated NO flux, the surface can mimic a physiological release profile to provide an activity on the vascular endothelium or an antibacterial activity. Three requirements are considered to describe the various strategies leading to a surface delivering NO. Firstly, the coating must be selected in accordance with the properties of the substrate (nature, shape, dimensions…). Secondly, the releasing and/or generating kinetics of NO should match the targeted biological application. Currently, the most promising structures are developed to provide an adaptable NO supply driven by pathophysiological needs. Finally, the biocompatibility and the stability of the surface must also be considered regarding the expected residence time of the device. A critical point of view is proposed to help readers in the design of the NO delivering surface according to its expected requirement and therapeutic purpose.
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Affiliation(s)
- Jordan Beurton
- Université de Lorraine CITHEFOR Nancy F‐54000 France
- Institut National de la Santé et de la Recherche Médicale Inserm UMR_S 1121 Biomaterials and Bioengineering Strasbourg F‐67085 France
- Université de Strasbourg Faculté de Chirurgie Dentaire de Strasbourg Strasbourg F‐67000 France
| | | | - Amedea Barozzi Seabra
- Center for Natural and Human Sciences (CCNH) Federal University of ABC (UFABC) Santo André SP CEP 09210‐580 Brazil
| | | | - Igor Clarot
- Université de Lorraine CITHEFOR Nancy F‐54000 France
| | - Philippe Lavalle
- Université de Strasbourg Faculté de Chirurgie Dentaire de Strasbourg Strasbourg F‐67000 France
- Center for Natural and Human Sciences (CCNH) Federal University of ABC (UFABC) Santo André SP CEP 09210‐580 Brazil
- SPARTHA Medical 14B Rue de la Canardiere Strasbourg 67100 France
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