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Huang W, Zeng Y, Shuai W, Fu W, Wen R, Li Y, Fu Q, He F, Yang H. Improvement in mechanical strength and biological function of 3D-printed trimagnesium phosphate bioceramic scaffolds by incorporating strontium orthosilicate. J Mech Behav Biomed Mater 2024; 157:106606. [PMID: 38838542 DOI: 10.1016/j.jmbbm.2024.106606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/20/2024] [Accepted: 05/29/2024] [Indexed: 06/07/2024]
Abstract
Trimagnesium phosphate (TMP) bioceramic scaffolds are deemed as promising bone grafts, but their mechanical and biological properties are yet to be improved. In the study, strontium orthosilicate (SrOS) was used to modify the TMP scaffolds, whose macroporous structure was constructed by the filament deposition-type 3D printing method. The new phases of SrMg2(PO4)2 and Sr2MgSi2O7, which showed nanocrystalline topography, were produced in the 3D-printed TMP/SrOS bioceramic composite scaffolds. The compressive strength (1.8-64.1 MPa) and porosity (39.7%-71.4%) of the TMP/SrOS scaffolds could be readily tailored by changing the amounts of SrOS additives and the sintering temperature. The TMP/SrOS scaffolds gradually degraded in the aqueous solution, consequently releasing ions of magnesium, strontium and silicon. In contrast with the TMP scaffolds, the TMP/SrOS bioceramic scaffolds had profoundly higher compressive strength, and enhanced cell proliferative and osteogenic activities. The TMP/SrOS scaffolds incorporated with 5 wt% SrOS had the highest mechanical strength and beneficial cellular function, which made them promising for treating different sites of bone defects.
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Affiliation(s)
- Wenhao Huang
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China
| | - Yifeng Zeng
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, 510405, Guangzhou, China
| | - Wei Shuai
- Jiangxi Key Laboratory of Tissue Engineering, Gannan Medical University, 341000, Ganzhou, China
| | - Wenhao Fu
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China
| | - Renzhi Wen
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China
| | - Yanfei Li
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China
| | - Qiuyu Fu
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China
| | - Fupo He
- School of Electromechanical Engineering, Guangdong University of Technology, 510006, Guangzhou, China.
| | - Hui Yang
- Jiangxi Key Laboratory of Tissue Engineering, Gannan Medical University, 341000, Ganzhou, China.
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Aslam Khan MU, Aslam MA, Bin Abdullah MF, Stojanović GM. Current Perspectives of Protein in Bone Tissue Engineering: Bone Structure, Ideal Scaffolds, Fabrication Techniques, Applications, Scopes, and Future Advances. ACS APPLIED BIO MATERIALS 2024; 7:5082-5106. [PMID: 39007509 DOI: 10.1021/acsabm.4c00362] [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: 07/16/2024]
Abstract
In view of their exceptional approach, excellent inherent biocompatibility and biodegradability properties, and interaction with the local extracellular matrix, protein-based polymers have received attention in bone tissue engineering, which is a multidisciplinary field that repairs and regenerates fractured bones. Bone is a multihierarchical complex structure, and it performs several essential biofunctions, including maintaining mineral balance and structural support and protecting soft organs. Protein-based polymers have gained interest in developing ideal scaffolds as emerging biomaterials for bone fractured healing and regeneration, and it is challenging to design ideal bone substitutes as perfect biomaterials. Several protein-based polymers, including collagen, keratin, gelatin, serum albumin, etc., are potential materials due to their inherent cytocompatibility, controlled biodegradability, high biofunctionalization, and tunable mechanical characteristics. While numerous studies have indicated the encouraging possibilities of proteins in BTE, there are still major challenges concerning their biodegradability, stability in physiological conditions, and continuous release of growth factors and bioactive molecules. Robust scaffolds derived from proteins can be used to replace broken or diseased bone with a biocompatible substitute; proteins, being biopolymers, provide excellent scaffolds for bone tissue engineering. Herein, recent developments in protein polymers for cutting-edge bone tissue engineering are addressed in this review within 3-5 years, with a focus on the significant challenges and future perspectives. The first section discusses the structural fundamentals of bone anatomy and ideal scaffolds, and the second section describes the fabrication techniques of scaffolds. The third section highlights the importance of proteins and their applications in BTE. Hence, the recent development of protein polymers for state-of-the-art bone tissue engineering has been discussed, highlighting the significant challenges and future perspectives.
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Affiliation(s)
- Muhammad Umar Aslam Khan
- Department of Mechanical and Industrial Engineering, Qatar University, Doha 2713, Qatar
- Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Muhammad Azhar Aslam
- Department of Physics, University of Engineering and Technology, Lahore 39161, Pakistan
| | - Mohd Faizal Bin Abdullah
- Oral and Maxillofacial Surgery Unit, School of Dental Sciences, Universiti Sains Malaysia, Health Campus Kubang Kerian 16150, Kota Bharu, Kelantan, Malaysia
- Oral and Maxillofacial Surgery Unit, Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Health Campus Kubang Kerian 16150, Kota Bharu, Kelantan, Malaysia
| | - Goran M Stojanović
- Faculty of Technical Sciences, University of Novi Sad, T. D. Obradovica 6, 21000 Novi Sad, Serbia
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Miao A, Li Q, Tang G, Lu Q. Alginate-containing 3D-printed hydrogel scaffolds incorporated with strontium promotes vascularization and bone regeneration. Int J Biol Macromol 2024; 273:133038. [PMID: 38857724 DOI: 10.1016/j.ijbiomac.2024.133038] [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: 01/28/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024]
Abstract
Bone defects persist as a significant challenge in the field of clinical orthopedics. This study focuses on the fabrication and characterization of 3D-printed composite hydrogel scaffolds composed of sodium alginate, gelatin, and α-tricalcium phosphate (α-TCP) with varying ratios of Strontium ions (Sr2+). These scaffolds aim to address the clinical challenges associated with bone defect repair by providing mechanical support and promoting bone formation and vascularization. The degradation, swelling, mechanical properties, and release profiles of Sr2+ from the hydrogel scaffolds were comprehensively characterized. In vitro tests were conducted to assess cell viability and proliferation, as well as osteogenic and angiogenic gene expression, to investigate the osteogenic and pro-angiogenic potential of the composite hydrogel scaffolds. Furthermore, skull defect simulations were performed, and composite scaffolds with varying Sr2+ ratios were implanted to evaluate their effectiveness in bone repair. This research establishes a foundation for advancing bone tissue engineering through composite scaffolds containing biological macromolecules and strontium, with alginate serving as a key element in enhancing performance and expanding clinical applicability.
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Affiliation(s)
- Afeng Miao
- Department of Orthopaedics, Taizhou People's Hospital, Taizhou, Jiangsu, China; Affiliated Taizhou People's Hospital of Nanjing Medical University, Jiangsu, China
| | - Qingsong Li
- Department of Orthopaedics, Taizhou People's Hospital, Taizhou, Jiangsu, China; Affiliated Taizhou People's Hospital of Nanjing Medical University, Jiangsu, China
| | - Genling Tang
- Department of Orthopaedics, Taizhou People's Hospital, Taizhou, Jiangsu, China; Affiliated Taizhou People's Hospital of Nanjing Medical University, Jiangsu, China
| | - Qifeng Lu
- Department of Orthopaedics, Taizhou People's Hospital, Taizhou, Jiangsu, China; Affiliated Taizhou People's Hospital of Nanjing Medical University, Jiangsu, China.
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4
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Wang J, Zhang L, Wang K. Bioactive ceramic-based materials: beneficial properties and potential applications in dental repair and regeneration. Regen Med 2024; 19:257-278. [PMID: 39118532 PMCID: PMC11321270 DOI: 10.1080/17460751.2024.2343555] [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: 12/04/2023] [Accepted: 04/12/2024] [Indexed: 08/10/2024] Open
Abstract
Bioactive ceramics, primarily consisting of bioactive glasses, glass-ceramics, calcium orthophosphate ceramics, calcium silicate ceramics and calcium carbonate ceramics, have received great attention in the past decades given their biocompatible nature and excellent bioactivity in stimulating cell proliferation, differentiation and tissue regeneration. Recent studies have tried to combine bioactive ceramics with bioactive ions, polymers, bioactive proteins and other chemicals to improve their mechanical and biological properties, thus rendering them more valid in tissue engineering scaffolds. This review presents the beneficial properties and potential applications of bioactive ceramic-based materials in dentistry, particularly in the repair and regeneration of dental hard tissue, pulp-dentin complex, periodontal tissue and bone tissue. Moreover, greater insights into the mechanisms of bioactive ceramics and the development of ceramic-based materials are provided.
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Affiliation(s)
- Jiale Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3rd of Renmin South Road, Chengdu, 610041, China
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3rd of Renmin South Road, Chengdu, 610041, China
| | - Kun Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, No.14, Section 3rd of Renmin South Road, Chengdu, 610041, China
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Jo Y, Majumdar U, Bose S. Vitamin D3 Release from MgO Doped 3D Printed TCP Scaffolds for Bone Regeneration. ACS Biomater Sci Eng 2024; 10:1676-1685. [PMID: 38386843 PMCID: PMC11186521 DOI: 10.1021/acsbiomaterials.3c01779] [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: 02/24/2024]
Abstract
Regenerating bone tissue in critical-sized craniofacial bone defects remains challenging and requires the implementation of innovative bone implants with early stage osteogenesis and blood vessel formation. Vitamin D3 is incorporated into MgO-doped 3D-printed scaffolds for defect-specific and patient-specific implants in low load-bearing areas. This novel bone implant also promotes early stage osteogenesis and blood vessel development. Our results show that vitamin D3-loaded MgO-doped 3D-printed scaffolds enhance osteoblast cell proliferation 1.3-fold after being cultured for 7 days. Coculture studies on osteoblasts derived from human mesenchymal stem cells (hMSCs) and osteoclasts derived from monocytes show the upregulation of genes related to osteoblastogenesis and the downregulation of RANK-L, which is essential for osteoclastogenesis. Release of vitamin D3 also inhibits osteoclast differentiation by 1.9-fold after a 21-day culture. After 6 weeks, vitamin D3 release from MgO-doped 3D-printed scaffolds enhances the new bone formation, mineralization, and angiogenic potential. The multifunctional 3D-printed scaffolds can improve early stage osteogenesis and blood vessel formation in craniofacial bone defects.
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Affiliation(s)
- Yongdeok Jo
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Ujjayan Majumdar
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
| | - Susmita Bose
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164, United States
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6
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Huang F, Tan R, Wang MW, Hu LC, Wang Z, Sun SD, Huang JW, Luo YW. Three‑dimensional finite element analysis: Anatomical splint fixation for Colles fractures. Exp Ther Med 2024; 27:98. [PMID: 38356671 PMCID: PMC10865454 DOI: 10.3892/etm.2024.12386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 12/21/2023] [Indexed: 02/16/2024] Open
Abstract
With the rapid development of digital research in clinical orthopedics, the efficacy and safety of splint fixation can be better evaluated through biomechanical analysis based on a three-dimensional (3D) finite element model. It is essential to address the current gap in understanding the biomechanical implications of anatomical splint fixation for Colles fractures. By employing advanced 3D finite element analysis, the present study aimed to provide a comprehensive evaluation, offering valuable insights that can contribute to enhancing the effectiveness of anatomical splint fixation in the clinical management of Colles fractures. The 3D finite element models of the forearm and hand were constructed using Mimics 15.0 according to data from computed tomography of a patient with a Colles fracture. After the validity of the model was verified, the corresponding material properties of the models were adjusted to simulate a Colles fracture. Subsequently, the reduction functions, such as radial inclination and ulnar deviation, of the simulated fracture were completed and the mechanical changes of the tissues surrounding the fracture were calculated. Anatomical splints were then placed on the surfaces of the 3D finite element models of Colles fractures at various positions to analyze the changes in the stress cloud diagram, such as for the soft tissue and anatomical splints. In the present study, the constructed 3D finite element models were accurate and valid. The maximum stress of the anatomical splints and soft tissues was 2.346 and 0.106 MPa in pronation, 1.780 and 0.069 MPa in median rotation and 3.045 and 0.057 MPa in supination, respectively. Splint stress reached the highest level in supination and soft tissue stress achieved the highest level in pronation. The peak of splint stress occurred during supination, which contrasts to the peak of soft tissue stress observed in pronation, suggesting splint fixation median rotation can effectively avoid compression of the local soft tissue.
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Affiliation(s)
- Fei Huang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Rui Tan
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Meng-Wei Wang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Liu-Chao Hu
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Zhi Wang
- Department of Operating Room, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Shi-Dong Sun
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Jie-Wen Huang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
| | - Yi-Wen Luo
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510000, P.R. China
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7
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A L, Elsen R, Nayak S. Artificial Intelligence-Based 3D Printing Strategies for Bone Scaffold Fabrication and Its Application in Preclinical and Clinical Investigations. ACS Biomater Sci Eng 2024; 10:677-696. [PMID: 38252807 DOI: 10.1021/acsbiomaterials.3c01368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
3D printing has become increasingly popular in the field of bone tissue engineering. However, the mechanical properties, biocompatibility, and porosity of the 3D printed bone scaffolds are major requirements for tissue regeneration and implantation as well. Designing the scaffold architecture in accordance with the need to create better mechanical and biological stimuli is necessary to achieve unique scaffold properties. To accomplish this, different 3D designing strategies can be utilized with the help of the scaffold design library and artificial intelligence (AI). The implementation of AI to assist the 3D printing process can enable it to predict, adapt, and control the parameters on its own, which lowers the risk of errors. This Review emphasizes 3D design and fabrication of bone scaffold using different materials and the use of AI-aided 3D printing strategies. Also, the adaption of AI to 3D printing helps to develop patient-specific scaffolds based on different requirements, thus providing feedback and adequate data for reproducibility, which can be improvised in the future. These printed scaffolds can also serve as an alternative to preclinical animal test models to cut costs and prevent immunological interference.
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Affiliation(s)
- Logeshwaran A
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Katpadi, Vellore, Tamil Nadu 632014, India
| | - Renold Elsen
- School of Mechanical Engineering, Vellore Institute of Technology (VIT), Katpadi, Vellore, Tamil Nadu 632014, India
| | - Sunita Nayak
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Katpadi, Vellore, Tamil Nadu 632014, India
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Khayatan D, Bagherzadeh Oskouei A, Alam M, Mohammadikhah M, Badkoobeh A, Golkar M, Abbasi K, Karami S, Sayyad Soufdoost R, Kamali Hakim L, Hussain A, Tebyaniyan H, Heboyan A. Cross Talk Between Cells and the Current Bioceramics in Bone Regeneration: A Comprehensive Review. Cell Transplant 2024; 33:9636897241236030. [PMID: 38494898 PMCID: PMC10946075 DOI: 10.1177/09636897241236030] [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: 11/06/2023] [Revised: 01/21/2024] [Accepted: 02/12/2024] [Indexed: 03/19/2024] Open
Abstract
The conventional approach for addressing bone defects and stubborn non-unions typically involves the use of autogenous bone grafts. Nevertheless, obtaining these grafts can be challenging, and the procedure can lead to significant morbidity. Three primary treatment strategies for managing bone defects and non-unions prove resistant to conventional treatments: synthetic bone graft substitutes (BGS), a combination of BGS with bioactive molecules, and the use of BGS in conjunction with stem cells. In the realm of synthetic BGS, a multitude of biomaterials have emerged for creating scaffolds in bone tissue engineering (TE). These materials encompass biometals like titanium, iron, magnesium, and zinc, as well as bioceramics such as hydroxyapatite (HA) and tricalcium phosphate (TCP). Bone TE scaffolds serve as temporary implants, fostering tissue ingrowth and the regeneration of new bone. They are meticulously designed to enhance bone healing by optimizing geometric, mechanical, and biological properties. These scaffolds undergo continual remodeling facilitated by bone cells like osteoblasts and osteoclasts. Through various signaling pathways, stem cells and bone cells work together to regulate bone regeneration when a portion of bone is damaged or deformed. By targeting signaling pathways, bone TE can improve bone defects through effective therapies. This review provided insights into the interplay between cells and the current state of bioceramics in the context of bone regeneration.
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Affiliation(s)
- Danial Khayatan
- GI Pharmacology Interest Group, Universal Scientific Education and Research Network, Tehran, Iran
| | - Asal Bagherzadeh Oskouei
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meysam Mohammadikhah
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Alborz University of Medical Sciences, Karaj, Iran
| | - Ashkan Badkoobeh
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Qom University of Medical Sciences, Qom, Iran
| | - Mohsen Golkar
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Abbasi
- Department of Prosthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | | | | | - Ahmed Hussain
- School of Dentistry, Edmonton Clinic Health Academy, University of Alberta, Edmonton, Canada
| | - Hamid Tebyaniyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
| | - Artak Heboyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
- Department of Science and Research, Islamic Azad University, Tehran, Iran
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He F, Rao J, Zhou J, Fu W, Wang Y, Zhang Y, Zuo F, Shi H. Fabrication of 3D printed Ca 3Mg 3(PO 4) 4-based bioceramic scaffolds with tailorable high mechanical strength and osteostimulation effect. Colloids Surf B Biointerfaces 2023; 229:113472. [PMID: 37487286 DOI: 10.1016/j.colsurfb.2023.113472] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/01/2023] [Accepted: 07/19/2023] [Indexed: 07/26/2023]
Abstract
Calcium, magnesium and phosphate are predominant constituents in the human bone. In this study, magnesium-calcium phosphate composite bioceramic scaffolds were fabricated utilizing Mg3(PO4)2 and β-Ca3(PO4)2 as starting materials, and their pore structure was constructed by 3D printing. The porosity and compressive strength of the composite bioceramic scaffolds could be adjusted by altering the sintering temperature and the formula of starting materials. The composite bioceramic scaffolds prepared from 60 wt% Mg3(PO4)2 and 40 wt% β-Ca3(PO4)2 were dominated by the Ca3Mg3(PO4)4 phase, and this Ca3Mg3(PO4)4-based bioceramic scaffolds possessed the highest compressive strength (12.7 - 92.4 MPa). Moreover, the Ca3Mg3(PO4)4-based bioceramic scaffolds stimulated cellular growth and osteoblastic differentiation of bone marrow stromal cells. The Ca3Mg3(PO4)4-based bioceramic scaffolds as bone regenerative biomaterials are flexible to the requirement of bone defects at various sites.
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Affiliation(s)
- Fupo He
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China.
| | - Jin Rao
- School of Stomatology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jielin Zhou
- School of Stomatology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Wenhao Fu
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Yao Wang
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Yihang Zhang
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Fei Zuo
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Haishan Shi
- School of Stomatology, Jinan University, Guangzhou 510632, People's Republic of China.
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Nifant'ev I, Tavtorkin A, Komarov P, Kretov E, Korchagina S, Chinova M, Gavrilov D, Ivchenko P. Dispersant and Protective Roles of Amphiphilic Poly(ethylene phosphate) Block Copolymers in Polyester/Bone Mineral Composites. Int J Mol Sci 2023; 24:11175. [PMID: 37446347 DOI: 10.3390/ijms241311175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Composites of synthetic bone mineral substitutes (BMS) and biodegradable polyesters are of particular interest for bone surgery and orthopedics. Manufacturing of composite scaffolds commonly uses mixing of the BMS with polymer melts. Melt processing requires a high homogeneity of the mixing, and is complicated by BMS-promoted thermal degradation of polymers. In our work, poly(L-lactide) (PLLA) and poly(ε-caprolactone) (PCL) composites reinforced by commercial β-tricalcium phosphate (βTCP) or synthesized carbonated hydroxyapatite with hexagonal and plate-like crystallite shapes (hCAp and pCAp, respectively) were fabricated using injection molding. pCAp-based composites showed advanced mechanical and thermal characteristics, and the best set of mechanical characteristics was observed for the PLLA-based composite containing 25 wt% of pCAp. To achieve compatibility of polyesters and pCAp, reactive block copolymers of PLLA or PCL with poly(tert-butyl ethylene phosphate) (C1 and C2, respectively) were introduced to the composite. The formation of a polyester-b-poly(ethylene phosphoric acid) (PEPA) compatibilizer during composite preparation, followed by chemical binding of PEPA with pCAp, have been proved experimentally. The presence of 5 wt% of the compatibilizer provided deeper homogenization of the composite, resulting in a marked increase in strength and moduli as well as a more pronounced nucleation effect during isothermal crystallization. The use of C1 increased the thermal stability of the PLLA-based composite, containing 25 wt% of pCAp. In view of positive impacts of polyester-b-PEPA on composite homogeneity, mechanical characteristics, and thermal stability, polyester-b-PEPA will find application in the further development of composite materials for bone surgery and orthopedics.
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Affiliation(s)
- Ilya Nifant'ev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Alexander Tavtorkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Egor Kretov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Sofia Korchagina
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Maria Chinova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Dmitry Gavrilov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Pavel Ivchenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
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11
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Delpierre A, Savard G, Renaud M, Rochefort GY. Tissue Engineering Strategies Applied in Bone Regeneration and Bone Repair. Bioengineering (Basel) 2023; 10:644. [PMID: 37370575 DOI: 10.3390/bioengineering10060644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Bone regeneration and repair present significant challenges in the field of regenerative medicine [...].
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Affiliation(s)
- Alexis Delpierre
- Faculty of Dentistry, Tours University, 37000 Tours, France
- Department of Odontology, Tours University Hospital, 37261 Tours, France
| | - Guillaume Savard
- Faculty of Dentistry, Tours University, 37000 Tours, France
- Department of Odontology, Tours University Hospital, 37261 Tours, France
| | - Matthieu Renaud
- Faculty of Dentistry, Tours University, 37000 Tours, France
- Department of Odontology, Tours University Hospital, 37261 Tours, France
| | - Gael Y Rochefort
- Faculty of Dentistry, Tours University, 37000 Tours, France
- SATT Lutech TTO, Research and Valorization Department, Sorbonne University, 75012 Paris, France
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