1
|
Wang X, Zhou K, Li Y, Xie H, Wang B. Preparation, modification, and clinical application of porous tantalum scaffolds. Front Bioeng Biotechnol 2023; 11:1127939. [PMID: 37082213 PMCID: PMC10110962 DOI: 10.3389/fbioe.2023.1127939] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
Porous tantalum (Ta) implants have been developed and clinically applied as high-quality implant biomaterials in the orthopedics field because of their excellent corrosion resistance, biocompatibility, osteointegration, and bone conductivity. Porous Ta allows fine bone ingrowth and new bone formation through the inner space because of its high porosity and interconnected pore structure. It contributes to rapid bone integration and long-term stability of osseointegrated implants. Porous Ta has excellent wetting properties and high surface energy, which facilitate the adhesion, proliferation, and mineralization of osteoblasts. Moreover, porous Ta is superior to classical metallic materials in avoiding the stress shielding effect, minimizing the loss of marginal bone, and improving primary stability because of its low elastic modulus and high friction coefficient. Accordingly, the excellent biological and mechanical properties of porous Ta are primarily responsible for its rising clinical translation trend. Over the past 2 decades, advanced fabrication strategies such as emerging manufacturing technologies, surface modification techniques, and patient-oriented designs have remarkably influenced the microstructural characteristic, bioactive performance, and clinical indications of porous Ta scaffolds. The present review offers an overview of the fabrication methods, modification techniques, and orthopedic applications of porous Ta implants.
Collapse
Affiliation(s)
| | | | | | - Hui Xie
- *Correspondence: Hui Xie, ; Benjie Wang,
| | | |
Collapse
|
2
|
Chen H, Jiang N, Zhang J, Tan P, Wang M, Zhu S, Cao P. Micron/Submicron Scaled Hierarchical Ti Phosphate/Ti Oxide Hybrid Coating on 3D Printed Scaffolds for Improved Osteointegration. ACS Biomater Sci Eng 2023; 9:1274-1284. [PMID: 36802473 DOI: 10.1021/acsbiomaterials.2c01354] [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: 02/22/2023]
Abstract
Three-dimensional (3D) printed implants have attracted substantial attention in the field of personalized medicine, but negative impacts on mechanical properties or initial osteointegration have limited their application. To address these problems, we prepared hierarchical Ti phosphate/Ti oxide (TiP-Ti) hybrid coatings on 3D printed Ti scaffolds. The surface morphology, chemical composition, and bonding strength of the scaffolds were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle measurement, X-ray diffraction (XRD), and scratch test. In vitro performance was analyzed by colonization and proliferation of rat bone marrow mesenchymal stem cells (BMSCs). In vivo osteointegration of the scaffolds in rat femurs was assessed by micro-CT and histological analyses. The results demonstrated improved cell colonization and proliferation as well as excellent osteointegration obtained by incorporation of our scaffolds with the novel TiP-Ti coating. In conclusion, micron/submicron scaled Ti phosphate/Ti oxide hybrid coatings on 3D printed scaffolds have promising potential in future biomedical applications.
Collapse
Affiliation(s)
- Haozhe Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Nan Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jie Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peijie Tan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Min Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Songsong Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Pinyin Cao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Oral & Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| |
Collapse
|
3
|
Ma Z, Liu B, Li S, Wang X, Li J, Yang J, Tian S, Wu C, Zhao D. A novel biomimetic trabecular bone metal plate for bone repair and osseointegration. Regen Biomater 2023; 10:rbad003. [PMID: 36817973 PMCID: PMC9926947 DOI: 10.1093/rb/rbad003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/28/2022] [Accepted: 01/05/2023] [Indexed: 02/09/2023] Open
Abstract
Fracture is one of the most common traumatic diseases in clinical practice, and metal plates have always been the first choice for fracture treatment because of their high strength. However, the bone plates have high elastic modulus and do not match the biomechanics of human bone, which adversely affects callus formation and fracture healing. Moreover, the complex microenvironment in the human body can induce corrosion of metallic materials and release toxic ions, which reduces the biocompatibility of the bone plate, and may necessitate surgical removal of the implant. In this study, tantalum (Ta) was deposited on porous silicon carbide (SiC) scaffolds by chemical vapor deposition technology to prepare a novel porous tantalum (pTa) trabecular bone metal plate. The function of the novel bone plate was evaluated by implantation in an animal fracture model. The results showed that the novel bone plate was effective in fracture fixation, without breakage. Both X-ray and microcomputed tomography analysis showed indirect healing by both pTa trabecular bone metal plates and titanium (Ti) plates; however, elastic fixation and obvious callus formation were observed after fixation with pTa trabecular bone metal plates, indicating better bone repair. Histology showed that pTa promoted the formation of new bone and integrated well with the host bone. Therefore, this novel pTa trabecular bone metal plate has good prospects for application in treating fractures.
Collapse
Affiliation(s)
| | | | | | - Xiaohu Wang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Jingyu Li
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Jiahui Yang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Simiao Tian
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Chengjun Wu
- School of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Dewei Zhao
- Correspondence address. Tel: +86 0411 62893509, E-mail:
| |
Collapse
|
4
|
Gareev KG, Grouzdev DS, Koziaeva VV, Sitkov NO, Gao H, Zimina TM, Shevtsov M. Biomimetic Nanomaterials: Diversity, Technology, and Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2485. [PMID: 35889709 PMCID: PMC9316400 DOI: 10.3390/nano12142485] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 02/04/2023]
Abstract
Biomimetic nanomaterials (BNMs) are functional materials containing nanoscale components and having structural and technological similarities to natural (biogenic) prototypes. Despite the fact that biomimetic approaches in materials technology have been used since the second half of the 20th century, BNMs are still at the forefront of materials science. This review considered a general classification of such nanomaterials according to the characteristic features of natural analogues that are reproduced in the preparation of BNMs, including biomimetic structure, biomimetic synthesis, and the inclusion of biogenic components. BNMs containing magnetic, metal, or metal oxide organic and ceramic structural elements (including their various combinations) were considered separately. The BNMs under consideration were analyzed according to the declared areas of application, which included tooth and bone reconstruction, magnetic and infrared hyperthermia, chemo- and immunotherapy, the development of new drugs for targeted therapy, antibacterial and anti-inflammatory therapy, and bioimaging. In conclusion, the authors' point of view is given about the prospects for the development of this scientific area associated with the use of native, genetically modified, or completely artificial phospholipid membranes, which allow combining the physicochemical and biological properties of biogenic prototypes with high biocompatibility, economic availability, and scalability of fully synthetic nanomaterials.
Collapse
Affiliation(s)
- Kamil G. Gareev
- Department of Micro and Nanoelectronics, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia; (N.O.S.); (T.M.Z.)
- Laboratory of Biomedical Nanotechnologies, Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Denis S. Grouzdev
- SciBear OU, Tartu mnt 67/1-13b, Kesklinna Linnaosa, 10115 Tallinn, Estonia;
| | - Veronika V. Koziaeva
- Research Center of Biotechnology of the Russian Academy of Sciences, Institute of Bioengineering, 119071 Moscow, Russia;
| | - Nikita O. Sitkov
- Department of Micro and Nanoelectronics, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia; (N.O.S.); (T.M.Z.)
- Laboratory of Biomedical Nanotechnologies, Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Huile Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China;
| | - Tatiana M. Zimina
- Department of Micro and Nanoelectronics, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia; (N.O.S.); (T.M.Z.)
- Laboratory of Biomedical Nanotechnologies, Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
| | - Maxim Shevtsov
- Laboratory of Biomedical Nanotechnologies, Institute of Cytology of the Russian Academy of Sciences, 194064 Saint Petersburg, Russia
- Center of Translational Cancer Research (TranslaTUM), Klinikum Rechts der Isar, Technical University Munich, 81675 Munich, Germany
- Personalized Medicine Centre, Almazov National Medical Research Centre, 197341 Saint Petersburg, Russia
- National Center for Neurosurgery, Nur-Sultan 010000, Kazakhstan
| |
Collapse
|
5
|
Zhao D, Ma Z, Liu B, Yang L, Qiu X, Tian S, Okoye CS, Lian Z. A New Method to Protect Blood Supply in the Treatment of Femoral Neck Fractures: Bidirectional Compression Porous Tantalum Screws. Orthop Surg 2022; 14:1964-1971. [PMID: 35848152 PMCID: PMC9483077 DOI: 10.1111/os.13285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 03/12/2022] [Accepted: 03/21/2022] [Indexed: 11/28/2022] Open
Abstract
Objective To explore the clinical effect of a new type of bidirectional pressurized porous tantalum screw (PTS) internal fixation in treating femoral neck fractures (FNFs). Methods In this study, geometric models of FNF were first established via reverse engineering method, followed by stimulation of the strength of PTSs in fixation of FNFs. A randomized control trial study was then conducted of 41 patients with FNF from October 2015 to December 2018. These patients included 12 males and 29 females with an average age of 59.9. The 41 patients were randomly divided into two groups: cannulated compression screws (CCSs) group (n = 21) and PTSs group (n = 20). Treatment outcomes in patients were evaluated using multiple imaging techniques, including X‐ray and digital subtraction angiography scanning as well as functional recovery Harris hip score. Without other postoperative complications, the primary outcome was defined as fracture healing after FNF internal fixation. Secondary outcomes are the incidence of the avascular necrosis of femoral head (ANFH), fracture nonunion, and reoperation rate. Results Following PTS internal fixation of FNF, finite element results revealed a firmly fixed fracture with a slight displacement of less than 0.5 mm. At follow‐up, we found a statistically significant difference in Harris scores in the two groups at 1 month and 3 months post‐surgery. In the PTSs group, there was no case of ANFH and fracture nonunion, and the average healing time was 94.45 ± 6.47 days. In the CCSs group, there were four cases of ANFH, the necrosis rate was 19.05% (4/21). There was one case of fracture nonunion in the CCSs group, the nonunion fracture rate was 4.76% (1/21), and the average healing time was 122.54 ± 11.37 days. Five patients underwent total hip arthroplasty, and the reoperation rate was 23.81% (5/21). There were significant differences in the postoperative complications, fracture healing time, and reoperation rate between the two groups (p < 0.05). Conclusions PTSs fixation of FNF at the center, does not only avoid the destruction of blood supply in the femoral head and reduction in the incidence of postoperative complications of FNFs, but also induces early bone ingrowth and promotes fracture healing. These findings provide a potential surgical internal fixation system for treating FNFs.
Collapse
Affiliation(s)
- Dewei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zhijie Ma
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Baoyi Liu
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Lei Yang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Xing Qiu
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Simiao Tian
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Chukwuemeka Samuel Okoye
- The Orthopedic Research Centre, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zhiqiang Lian
- Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, China
| |
Collapse
|
6
|
Special Issue: Ceramic and Metallic Biomaterials Nanoparticles for Applications in Medical Sciences. COATINGS 2022. [DOI: 10.3390/coatings12070998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nowadays, the development of new materials that can be used to treat, repair, diagnose, replace, or restore a function of the human body represents one of the key research topics for the worldwide scientists and medical industries [...]
Collapse
|
7
|
Cui Y, Li H, Li Y, Mao L. Novel insights into nanomaterials for immunomodulatory bone regeneration. NANOSCALE ADVANCES 2022; 4:334-352. [PMID: 36132687 PMCID: PMC9418834 DOI: 10.1039/d1na00741f] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/13/2021] [Indexed: 05/02/2023]
Abstract
Bone defect repair caused by trauma, congenital malformation, tumors, infection or systemic diseases remains the focus of attention in regeneration medicine. Recent advances in osteoimmunology indicate that immune cells and correlative cytokines modulate the delicate balance between osteoblasts and osteoclasts and induce a favorable microenvironment for bone regeneration. With superior attributes that imitate the three-dimensional architecture of natural bone, excellent fabricability, mechanical and biological properties, nanomaterials (NMs) are becoming attractive in the field of bone tissue engineering. Particularly, it could be an effective strategy for immunomodulatory bone regeneration by engineering NMs involved in composition nature, nanoarchitectural morphology, surface chemistry, topography and biological molecules, whose mechanisms potentially refer to regulating the phenotype of high-plastic immune cells and inducing cytokine secretion to accelerate osteogenesis. Despite these prominent achievements, the employment of NMs is poorly translated into clinical trials due to the lack of knowledge about the interaction between NMs and the immune system. For this reason, we sketch out the hierarchical structure of bone and its natural healing process, followed by discussion about the effects of immune cells on bone regeneration. Novel horizons focusing on recent progressions in the architectural and physicochemical performances of NMs and their impacts on the body defence mechanism are also emphasized, hoping to provide novel insights for the fabrication of bone graft materials in tissue engineering.
Collapse
Affiliation(s)
- Ya Cui
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology Shanghai China
| | - Hairui Li
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology Shanghai China
| | - Yaxin Li
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology Shanghai China
| | - Lixia Mao
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology Shanghai China
| |
Collapse
|
8
|
Liu B, Ma Z, Li J, Xie H, Wei X, Wang B, Tian S, Yang J, Yang L, Cheng L, Li L, Zhao D. Experimental study of a 3D printed permanent implantable porous Ta-coated bone plate for fracture fixation. Bioact Mater 2021; 10:269-280. [PMID: 34901545 PMCID: PMC8636709 DOI: 10.1016/j.bioactmat.2021.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/25/2021] [Accepted: 09/04/2021] [Indexed: 12/12/2022] Open
Abstract
Metal plates have always been the gold standard in the clinic for internal fracture fixation due to their high strength advantages. However, high elastic modulus can cause stress shielding and lead to bone embrittlement. This study used an electron beam melting method to prepare personalized porous Ti6Al4V (pTi) bone plates. Then, chemical vapor deposition (CVD) technology coats tantalum (Ta) metal on the pTi bone plates. The prepared porous Ta-coated bone plate has an elastic modulus similar to cortical bone, and no stress shielding occurred. In vitro experiments showed that compared with pTi plates, Ta coating significantly enhances the attachment and proliferation of cells on the surface of the scaffold. To better evaluate the function of the Ta-coated bone plate, animal experiments were conducted using a coat tibia fracture model. Our results showed that the Ta-coated bone plate could effectively fix the fracture. Both imaging and histological analysis showed that the Ta-coated bone plate had prominent indirect binding of callus formation. Histological results showed that new bone grew at the interface and formed good osseointegration with the host bone. Therefore, this study provides an alternative to bio-functional Ta-coated bone plates with improved osseointegration and osteogenic functions for orthopaedic applications. Porous Ta coated bone plate has a low elastic modulus, which can avoid stress shielding. Porous Ta coated bone plate has excellent biocompatibility and can be permanently implanted in the body. Porous Ta coated bone plate has excellent osseointegration properties and can promote fracture healing.
Collapse
Affiliation(s)
- Baoyi Liu
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Zhijie Ma
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Junlei Li
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Hui Xie
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Xiaowei Wei
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Benjie Wang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Simiao Tian
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Jiahui Yang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Lei Yang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Liangliang Cheng
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Lu Li
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| | - Dewei Zhao
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian, 116001, China
| |
Collapse
|
9
|
Zhao Z, Wang M, Shao F, Liu G, Li J, Wei X, Zhang X, Yang J, Cao F, Wang Q, Wang H, Zhao D. Porous tantalum-composited gelatin nanoparticles hydrogel integrated with mesenchymal stem cell-derived endothelial cells to construct vascularized tissue in vivo. Regen Biomater 2021; 8:rbab051. [PMID: 34603743 PMCID: PMC8481010 DOI: 10.1093/rb/rbab051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 08/08/2021] [Accepted: 08/30/2021] [Indexed: 12/12/2022] Open
Abstract
The ideal scaffold material of angiogenesis should have mechanical strength and provide appropriate physiological microporous structures to mimic the extracellular matrix environment. In this study, we constructed an integrated three-dimensional scaffold material using porous tantalum (pTa), gelatin nanoparticles (GNPs) hydrogel, and seeded with bone marrow mesenchymal stem cells (BMSCs)-derived endothelial cells (ECs) for vascular tissue engineering. The characteristics and biocompatibility of pTa and GNPs hydrogel were evaluated by mechanical testing, scanning electron microscopy, cell counting kit, and live-cell assay. The BMSCs-derived ECs were identified by flow cytometry and angiogenesis assay. BMSCs-derived ECs were seeded on the pTa-GNPs hydrogel scaffold and implanted subcutaneously in nude mice. Four weeks after the operation, the scaffold material was evaluated by histomorphology. The superior biocompatible ability of pTa-GNPs hydrogel scaffold was observed. Our in vivo results suggested that 28 days after implantation, the formation of the stable capillary-like network in scaffold material could be promoted significantly. The novel, integrated pTa-GNPs hydrogel scaffold is biocompatible with the host, and exhibits biomechanical and angiogenic properties. Moreover, combined with BMSCs-derived ECs, it could construct vascular engineered tissue in vivo. This study may provide a basis for applying pTa in bone regeneration and autologous BMSCs in tissue-engineered vascular grafts.
Collapse
Affiliation(s)
- Zhenhua Zhao
- Orthopaedic Department, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Mang Wang
- Orthopaedic Department, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Fei Shao
- Key State Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, No. 2, Linggong Road, High-Tech District, Dalian 116024, P. R. China
| | - Ge Liu
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, P. R. China
| | - Junlei Li
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Xiaowei Wei
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Xiuzhi Zhang
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
- Reproductive Medicine Centre, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Jiahui Yang
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Fang Cao
- Department of Biomedical Engineering, Faculty of Electronic Information and Electronical Engineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Qiushi Wang
- Laboratory Animal Center, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| | - Huanan Wang
- Key State Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, No. 2, Linggong Road, High-Tech District, Dalian 116024, P. R. China
| | - Dewei Zhao
- Orthopaedic Department, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
- National-Local Joint Engineering Laboratory for the Development of Orthopedic Implant Materials, Affiliated ZhongShan Hospital of Dalian University, No. 6 Jiefang Street, Zhongshan District, Dalian, Liaoning 116001, P. R. China
| |
Collapse
|
10
|
Ma Z, Liu R, Cao F, Li J, Yang J, Kang K, Gao Z, Zhao D. Bone screws of porous silicon carbide coated with tantalum improve osseointegration and osteogenesis in goat femoral neck fractures. Biomed Mater 2021; 16. [PMID: 34192669 DOI: 10.1088/1748-605x/ac103b] [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: 04/14/2021] [Accepted: 06/30/2021] [Indexed: 11/11/2022]
Abstract
Traditional metal materials, such as stainless steel and titanium (Ti) alloys, are still the gold standards for fracture fixation. However, the elastic moduli of these materials differ from that of human cortical bone, and the stress shielding effect affects fracture healing, leading to secondary fractures. Herein, a new porous Ta coated SiC (pTa-SiC) scaffold using in internal fixation devices with good mechanical and biological properties was prepared based on porous silicon carbide (SiC) scaffold and tantalum (Ta) metal. The osteogenic and osseointegration properties of the pTa-SiC scaffold were investigated by bothin vitroandin vivotests. The results showed that compared with porous titanium (pTi), the pTa-SiC promoted the proliferation, migration, and osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. Moreover, the internal fixation tests were carried out in a goat load-bearing femoral neck fracture model. Histological results showed good osseointegration around the pTa-SiC screws. And the acid etching results showed that bone cells grew tightly on the pTa-SiC throughout bone canaliculi, and the growth mode was contact osteogenesis, which indicated good biological fixation effects. Therefore, it is reasonable to be expected that the new pTa-SiC scaffold with excellent mechanical and biological properties could be a promising candidate for bone implant field.
Collapse
Affiliation(s)
- Zhijie Ma
- School of Biomedical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
| | - Rong Liu
- School of Biomedical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
| | - Fang Cao
- School of Biomedical Engineering, Dalian University of Technology, Dalian 116024, People's Republic of China
| | - Jingyu Li
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian 116001, People's Republic of China
| | - Jiahui Yang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian 116001, People's Republic of China
| | - Kai Kang
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian 116001, People's Republic of China
| | - Ziqi Gao
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian 116001, People's Republic of China
| | - Dewei Zhao
- Orthopaedic of Department, Affiliated ZhongShan Hospital of Dalian University, Dalian 116001, People's Republic of China
| |
Collapse
|
11
|
Shen Z, Wang S, Shen Z, Tang Y, Xu J, Lin C, Chen X, Huang Q. Deciphering controversial results of cell proliferation on TiO 2 nanotubes using machine learning. Regen Biomater 2021; 8:rbab025. [PMID: 34168893 PMCID: PMC8218935 DOI: 10.1093/rb/rbab025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/19/2021] [Accepted: 05/09/2021] [Indexed: 12/27/2022] Open
Abstract
With the rapid development of biomedical sciences, contradictory results on the relationships between biological responses and material properties emerge continuously, adding to the challenge of interpreting the incomprehensible interfacial process. In the present paper, we use cell proliferation on titanium dioxide nanotubes (TNTs) as a case study and apply machine learning methodologies to decipher contradictory results in the literature. The gradient boosting decision tree model demonstrates that cell density has a higher impact on cell proliferation than other obtainable experimental features in most publications. Together with the variation of other essential features, the controversy of cell proliferation trends on various TNTs is understandable. By traversing all combinational experimental features and the corresponding forecast using an exhausted grid search strategy, we find that adjusting cell density and sterilization methods can simultaneously induce opposite cell proliferation trends on various TNTs diameter, which is further validated by experiments. This case study reveals that machine learning is a burgeoning tool in deciphering controversial results in biomedical researches, opening up an avenue to explore the structure-property relationships of biomaterials.
Collapse
Affiliation(s)
- Ziao Shen
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| | - Si Wang
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| | - Zhenyu Shen
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| | - Yufei Tang
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| | - Junbin Xu
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| | - Changjian Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen 361005, China
| | - Xun Chen
- Wenzhou Institute, University of Chinese Academy of Sciences, No.16 Xinsan Road, Hi-tech Industrial Park, Wenzhou, Zhejiang, 325000, China
| | - Qiaoling Huang
- Department of Physics, Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, Xiamen University, Zengcuoan West Road, Siming District, Xiamen 361005, China
| |
Collapse
|
12
|
Biodegradable polymeric occluder for closure of atrial septal defect with interventional treatment of cardiovascular disease. Biomaterials 2021; 274:120851. [PMID: 33965798 DOI: 10.1016/j.biomaterials.2021.120851] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 04/22/2021] [Indexed: 02/07/2023]
Abstract
The next-generation closure device for interventional treatment of congenital heart disease is regarded to be biodegradable, yet the corresponding biomaterial technique is still challenging. Herein, we report the first fully biodegradable atrial septal defect (ASD) occluder finally coming into clinical use, which is made of biodegradable poly(l-lactic acid) (PLLA). We characterized the physico-chemical properties of PLLA fibers as well as the raw polymer and the operability of the as-fabricated occluders. Cell behaviors on material were observed, and in vivo fiber degradation and inflammatory responses were examined. ASD models in piglets were created, and 44 PLLA ASD occluders were implanted via catheter successfully. After 36 months, the PLLA ASD occluders almost degraded without any complications. The mechanical properties and thickness between newborn and normal atrial septum showed no significant difference. We further accomplished the first clinical implantation of the PLLA ASD occluder in a four-year boy, and the two-year follow-up up to date preliminarily indicated safety and feasibility of such new-generation fully biodegradable occluder made of synthetic polymers.
Collapse
|