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Bai Z, Zhao Y, Cui C, Yan J, Qin D, Tong J, Peng H, Liu Y, Sun L, Wu X, Li B, Li X. Multifaceted Materials for Enhanced Osteogenesis and Antimicrobial Properties on Bioplastic Polyetheretherketone Surfaces: A Review. ACS OMEGA 2024; 9:17784-17807. [PMID: 38680314 PMCID: PMC11044237 DOI: 10.1021/acsomega.4c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 05/01/2024]
Abstract
Implant-associated infections and the increasing number of bone implants loosening and falling off after implantation have become urgent global challenges, hence the need for intelligent alternative solutions to combat implant loosening and falling off. The application of polyetheretherketone (PEEK) in biomedical and medical therapy has aroused great interest, especially because its elastic modulus close to bone provides an effective alternative to titanium implants, thereby preventing the possibility of bone implants loosening and falling off due to the mismatch of elastic modulus. In this Review, we provide a comprehensive overview of recent advances in surface modifications to prevent bone binding deficiency and bacterial infection after implantation of bone implants, starting with inorganics for surface modification, followed by organics that can effectively promote bone integration and antimicrobial action. In addition, surface modifications derived from cells and related products of biological activity have been proposed, and there is increasing evidence of clinical potential. Finally, the advantages and future challenges of surface strategies against medical associated poor osseointegration and infection are discussed, with promising prospects for developing novel osseointegration and antimicrobial PEEK materials.
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Affiliation(s)
- Ziyang Bai
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Yifan Zhao
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Chenying Cui
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Jingyu Yan
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Danlei Qin
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Jiahui Tong
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Hongyi Peng
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Yingyu Liu
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Lingxiang Sun
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Xiuping Wu
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Bing Li
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
| | - Xia Li
- Shanxi
Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030001, China
- Shanxi
Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, Shanxi 030001, China
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2
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Kawsar M, Sahadat Hossain M, Alam MK, Bahadur NM, Shaikh MAA, Ahmed S. Synthesis of pure and doped nano-calcium phosphates using different conventional methods for biomedical applications: a review. J Mater Chem B 2024; 12:3376-3391. [PMID: 38506117 DOI: 10.1039/d3tb02846a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The applications of calcium phosphates (hydroxyapatite, tetracalcium phosphate, tricalcium phosphate (alpha and beta), fluorapatite, di-calcium phosphate anhydrous, and amorphous calcium-phosphate) are increasing day by day. Calcium hydroxyapatite, commonly known as hydroxyapatite (HAp), represents a mineral form of calcium apatite. Owing to its close molecular resemblance to the mineral constituents of bones, teeth, and hard tissues, HAp is often employed in the biomedical domain. In addition, it is extensively employed in various sectors such as the remediation of water, air, and soil pollution. The key advantage of HAp lies in its potential to accommodate a wide variety of anionic and cationic substitutions. Nevertheless, HAp and tricalcium phosphate (TCP) syntheses typically involve the use of chemical precursors containing calcium and phosphorus sources and employ diverse techniques, such as solid-state, wet, and thermal methods or a combination of these processes. Researchers are increasingly favoring natural sources such as bio-waste (eggshells, oyster shells, animal bones, fish scales, etc.) as viable options for synthesizing HAp. Interestingly, the synthesis route significantly influences the morphology, size, and crystalline phase of calcium phosphates. In this review paper, we highlight both dry and wet methods, which include six commonly used synthesis methods (i.e. solid-state, mechano-chemical, wet-chemical precipitation, hydrolysis, sol-gel, and hydrothermal methods) coupled with the variation in source materials and their influence in modifying the structural morphology from a bulky state to nanoscale to explore the applications of multifunctional calcium phosphates in different formats.
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Affiliation(s)
- Md Kawsar
- Glass Research Division, Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Sahadat Hossain
- Glass Research Division, Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
| | - Md Kawcher Alam
- Glass Research Division, Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Newaz Mohammed Bahadur
- Department of Applied Chemistry and Chemical Engineering, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Md Aftab Ali Shaikh
- Glass Research Division, Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
- Department of Chemistry, University of Dhaka, Dhaka-1000, Bangladesh.
| | - Samina Ahmed
- Glass Research Division, Institute of Glass & Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh.
- BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka-1205, Bangladesh
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3
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Capek J, Sepúlveda M, Bacova J, Rodriguez-Pereira J, Zazpe R, Cicmancova V, Nyvltova P, Handl J, Knotek P, Baishya K, Sopha H, Smid L, Rousar T, Macak JM. Ultrathin TiO 2 Coatings via Atomic Layer Deposition Strongly Improve Cellular Interactions on Planar and Nanotubular Biomedical Ti Substrates. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5627-5636. [PMID: 38275195 PMCID: PMC10859894 DOI: 10.1021/acsami.3c17074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
This work aims to investigate the chemical and/or structural modification of Ti and Ti-6Al-4V (TiAlV) alloy surfaces to possess even more favorable properties toward cell growth. These modifications were achieved by (i) growing TiO2 nanotube layers on these substrates by anodization, (ii) surface coating by ultrathin TiO2 atomic layer deposition (ALD), or (iii) by the combination of both. In particular, an ultrathin TiO2 coating, achieved by 1 cycle of TiO2 ALD, was intended to shade the impurities of F- and V-based species in tested materials while preserving the original structure and morphology. The cell growth on TiO2-coated and uncoated TiO2 nanotube layers, Ti foils, and TiAlV alloy foils were compared after incubation for up to 72 h. For evaluation of the biocompatibility of tested materials, cell lines of different tissue origin, including predominantly MG-63 osteoblastic cells, were used. For all tested nanomaterials, adding an ultrathin TiO2 coating improved the growth of MG-63 cells and other cell lines compared with the non-TiO2-coated counterparts. Here, the presented approach of ultrathin TiO2 coating could be used potentially for improving implants, especially in terms of shading problematic F- and V-based species in TiO2 nanotube layers.
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Affiliation(s)
- Jan Capek
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Marcela Sepúlveda
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
| | - Jana Bacova
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Jhonatan Rodriguez-Pereira
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
123, 61200 Brno, Czech Republic
| | - Raul Zazpe
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
123, 61200 Brno, Czech Republic
| | - Veronika Cicmancova
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
| | - Pavlina Nyvltova
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Jiri Handl
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Petr Knotek
- Department
of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Kaushik Baishya
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
123, 61200 Brno, Czech Republic
| | - Hanna Sopha
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
123, 61200 Brno, Czech Republic
| | - Lenka Smid
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Tomas Rousar
- Department
of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532
10 Pardubice, Czech
Republic
| | - Jan M. Macak
- Center
of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Nam. Cs. Legii 565, 530 02 Pardubice, Czech Republic
- Central
European Institute of Technology, Brno University
of Technology, Purkyňova
123, 61200 Brno, Czech Republic
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Liu L, Luo P, Liao H, Yang K, Yang S, Tu M. Effects of aligned PLGA/SrCSH composite scaffolds on in vitro growth and osteogenic differentiation of human mesenchymal stem cells. J Biomed Mater Res B Appl Biomater 2024; 112:e35366. [PMID: 38247249 DOI: 10.1002/jbm.b.35366] [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: 06/18/2023] [Revised: 11/14/2023] [Accepted: 11/24/2023] [Indexed: 01/23/2024]
Abstract
Strontium (Sr) has important functions in bone remodeling. Incorporating strontium-doped α-calcium sulfate hemihydrate (SrCSH) into poly(lactic-co-glycolic acid) (PLGA) fibrous scaffolds were expected to increase its bio-activity and provide a potential material for bone tissue engineering. In the present study, Sr-containing aligned PLGA/SrCSH fibrous scaffolds similar to the architecture of natural bone were prepared via wet spinning. CCK-8 assay revealed that Sr-containing scaffolds possessed better bioactivity and supported favorable cell growth effectively. The aligned PLGA/SrCSH fibers exerted a contact effect on cell attachment, inducing regular cell alignment and influencing a series of cell behaviors. Releasing of high concentration Sr from a-PLGA/SrCSH scaffolds could induce high expression levels of BMP-2, increase ALP activity and upregulate RUNX-2 expression, and further promote the expressions of COL-I and OCN and the maximum mineralization. This study demonstrated that Sr and ordered structure in a-PLGA/SrCSH fibrous scaffolds could synergistically enhance the osteogenic differentiation of umbilical cord mesenchymal stem cells (UCMSCs) by regulating cell arrangement and expressions of osteogenic genes.
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Affiliation(s)
- Lichu Liu
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine, Foshan, P. R. China
| | - Pin Luo
- College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
| | - Honghong Liao
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine, Foshan, P. R. China
| | - Kuangyang Yang
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine, Foshan, P. R. China
| | - Shenyu Yang
- Medical 3D Printing Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P. R. China
| | - Mei Tu
- College of Chemistry and Materials Science, Jinan University, Guangzhou, P. R. China
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5
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Bao Z, Yang J, Shen J, Wang C, Li Y, Zhang Y, Yang G, Zhong C, Xu S, Xie L, Shen M, Gou Z. Core-shell bioceramic fiber-derived biphasic granules with adjustable core compositions for tuning bone regeneration efficacy. J Mater Chem B 2023; 11:2417-2430. [PMID: 36809396 DOI: 10.1039/d2tb02702j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Silicate-based biomaterials-clinically applied fillers and promising candidates-can act as a highly biocompatible substrate for osteostimulative osteogenic cell growth in vitro and in vivo. These biomaterials have been proven to exhibit a variety of conventional morphologies in bone repair, including scaffolds, granules, coatings and cement pastes. Herein, we aim to develop a series of novel bioceramic fiber-derived granules with core-shell structures which have a hardystonite (HT) shell layer and changeable core components-that is, the chemical compositions of a core layer can be tuned to include a wide range of silicate candidates (e.g., wollastonite (CSi)) with doping of functional ions (e.g., Mg, P, and Sr). Meanwhile, it is versatile to control the biodegradation and bioactive ion release sufficiently for stimulating new bone growth after implantation. Our method employs rapidly gelling ultralong core-shell CSi@HT fibers derived from different polymer hydrosol-loaded inorganic powder slurries through the coaxially aligned bilayer nozzles, followed by cutting and sintering treatments. It was demonstrated that the nonstoichiometric CSi core component could contribute to faster bio-dissolution and biologically active ion release in tris buffer in vitro. The rabbit femoral bone defect repair experiments in vivo indicated that core-shell bioceramic granules with an 8% P-doped CSi-core could significantly stimulate osteogenic potential favorable for bone repair. It is worth concluding that such a tunable component distribution strategy in fiber-type bioceramic implants may develop new-generation composite biomaterials endowed with time-dependent biodegradation and high osteostimulative activities for a range of bone repair applications in situ.
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Affiliation(s)
- Zhaonan Bao
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Jun Yang
- Department of Orthopaedic Surgery, Rui'an People's Hospital & the 3rd Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Jian Shen
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Cong Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Yifan Li
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Yan Zhang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Guojing Yang
- Department of Orthopaedic Surgery, Rui'an People's Hospital & the 3rd Hospital Affiliated to Wenzhou Medical University, Rui'an 325200, China
| | - Cheng Zhong
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Sanzhong Xu
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Lijun Xie
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
| | - Miaoda Shen
- Department of Orthopedics, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, Zhejiang, 310003, China.
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China.
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Dommeti VK, Roy S, Pramanik S, Merdji A, Ouldyerou A, Özcan M. Design and Development of Tantalum and Strontium Ion Doped Hydroxyapatite Composite Coating on Titanium Substrate: Structural and Human Osteoblast-like Cell Viability Studies. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1499. [PMID: 36837128 PMCID: PMC9966348 DOI: 10.3390/ma16041499] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
In order to reduce the loosening of dental implants, surface modification with hydroxyapatite (HA) coating has shown promising results. Therefore, in this present study, the sol-gel technique has been employed to form a tantalum and strontium ion-doped hybrid HA layer coating onto the titanium (Ti)-alloy substrate. In this study, the surface modification was completed by using 3% tantalum pent oxide (Ta2O5), 3% strontium (Sr), and a combination of 1.5% Ta2O5 and 1.5% Sr as additives, along with HA gel by spin coating technique. These additives played a prominent role in producing a porous structure layer coating and further cell growth. The MG63 cell culture assay results indicated that due to the incorporation of strontium ions along with tantalum embedded in HA, cell proliferation increased significantly after a 48 h study. Therefore, the present results, including microstructure, crystal structure, binding energy, and cell proliferation, showed that the additives 1.5% Ta2O5 and 1.5% Sr embedded in HA on the Ti-substrate had an optimized porous coating structure, which will enhance bone in-growth in surface-modified Ti-implants. This material had a proper porous morphology with a roughness profile, which may be suitable for tissue in-growth between a surface-modified textured implant and bone interface and could be applicable for dental implants.
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Affiliation(s)
- Vamsi Krishna Dommeti
- Department of Mechanical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Sandipan Roy
- Department of Mechanical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Sumit Pramanik
- Functional and Biomaterials Engineering Lab, Department of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Ali Merdji
- Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria
- Laboratory of Mechanics Physics of Materials (LMPM), Faculty of Technology, Djillali Liabes University, Sidi Bel Abbès 22000, Algeria
| | - Abdelhak Ouldyerou
- Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria
| | - Mutlu Özcan
- Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland
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7
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Chen F, Tian L, Pu X, Zeng Q, Xiao Y, Chen X, Zhang X. Enhanced ectopic bone formation by strontium-substituted calcium phosphate ceramics through regulation of osteoclastogenesis and osteoblastogenesis. Biomater Sci 2022; 10:5925-5937. [PMID: 36043373 DOI: 10.1039/d2bm00348a] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore how strontium influences osteoclastogenesis and osteoblastogenesis during material-induced ectopic bone formation, porous strontium-substituted biphasic calcium phosphate (Sr-BCP) and BCP ceramics with equivalent pore structures and comparable grain size and porosity were prepared. In vitro results showed that compared with BCP, Sr-BCP inhibited the osteoclastic differentiation of osteoclast precursors by delaying cell fusion, down-regulating the expression of osteoclast marker genes, and reducing the activity of osteoclast specific proteins, possibly due to the activated ERK signaling pathway but the suppressed p38, JNK and AKT signaling pathways. Meanwhile, Sr-BCP promoted the osteogenic differentiation of mesenchymal stem cells (MSCs) by up-regulating the osteogenic gene expression. Sr-BCP also mediated the expression of important osteoblast-osteoclast coupling factors, as evidenced by the increased Opg/Rankl ratio in mMSCs, and the reduced Rank expression and enhanced EphrinB2 expression in osteoclast precursors. Similar results were observed in an in vivo study based on a murine intramuscular implantation model. The sign of ectopic bone formation was only seen in Sr-BCP at 8 weeks. Compared to BCP, Sr-BCP obviously hindered the formation of TRAP- and CTSK-positive multinucleated osteoclast-like cells during the early implantation time up to 6 weeks, which is consistent with the in vivo PCR results. This suggested that Sr-BCP could clearly accelerate the ectopic bone formation by promoting osteogenesis but suppressing osteoclastogenesis, which might be closely related to the expression of osteoblast-osteoclast coupling factors regulated by Sr2+. These findings may help in the design and fabrication of smart bone substitutes with the desired potential for bone regeneration through modulating both osteoclastic resorption and osteoblastic synthesis.
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Affiliation(s)
- Fuying Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Luoqiang Tian
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Ximing Pu
- College of Biomedical Engineering, Sichuan University, Chengdu, China
| | - Qin Zeng
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
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8
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Lu X, Liu L, Feng S, Pan J, Li C, Zheng Y. Preparation and biological properties of ZnO/hydroxyapatite/chitosan-polyethylene oxide@gelatin biomimetic composite scaffolds for bone tissue engineering. J Biomater Appl 2022; 37:238-248. [PMID: 35487772 DOI: 10.1177/08853282221087110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To imitate the composition of natural bone and further improve the biological property of the materials, ZnO/hydroxyapatite/chitosan-polyethylene oxide@gelatin (ZnO/HAP/CS-PEO@GEL) composite scaffolds were developed. The core-shell structured chitosan-polyethylene oxide@gelatin (CS-PEO@GEL) nanofibers which could form the intramolecular hydrogen bond and achieve an Arg-Gly-Asp (RGD) polymer were first prepared by coaxial electrospinning to mimic the extracellular matrix. To further enhance biological activity, hydroxyapatite (HAP) was grown on the surface of the CS-PEO@GEL nanofibers using chemical deposition and ZnO particles were then evenly distributed on the surface of the above composite materials using RF magnetron sputtering. The SEM results showed that chemical deposition and magnetron sputtering did not destroy the three-dimensional architecture of materials, which was beneficial to cell growth. The cell compatibility and proliferation of MG-63 cells on ZnO/HAP/CS-PEO@GEL composite scaffolds were superior to those on CS-PEO@GEL and HAP/CS-PEO@GEL composite scaffolds. An appropriate amount of ZnO sputtering could promote the adhesion of cells on the composite nanofibers. The structure of bone tissue could be better simulated both in composition and in the microenvironment, which provided a suitable environment for cell growth and promoted the proliferation of MG-63 cells. The biomimetic ZnO/HAP/CS-PEO@GEL composite scaffolds were promising materials for bone tissue engineering.
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Affiliation(s)
- Xingjian Lu
- 12646Zhejiang Sci-Tech University, Hangzhou, China
| | - Leyun Liu
- 12646Zhejiang Sci-Tech University, Hangzhou, China
| | - Shixuan Feng
- 12646Zhejiang Sci-Tech University, Hangzhou, China
| | - Jiaqi Pan
- 12646Zhejiang Sci-Tech University, Hangzhou, China
| | - Chaorong Li
- 12646Zhejiang Sci-Tech University, Hangzhou, China
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9
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Bjelić D, Finšgar M. Bioactive coatings with anti-osteoclast therapeutic agents for bone implants: Enhanced compliance and prolonged implant life. Pharmacol Res 2022; 176:106060. [PMID: 34998972 DOI: 10.1016/j.phrs.2022.106060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/24/2021] [Accepted: 01/03/2022] [Indexed: 12/18/2022]
Abstract
The use of therapeutic agents that inhibit bone resorption is crucial to prolong implant life, delay revision surgery, and reduce the burden on the healthcare system. These therapeutic agents include bisphosphonates, various nucleic acids, statins, proteins, and protein complexes. Their use in systemic treatment has several drawbacks, such as side effects and insufficient efficacy in terms of concentration, which can be eliminated by local treatment. This review focuses on the incorporation of osteoclast inhibitors (antiresorptive agents) into bioactive coatings for bone implants. The ability of bioactive coatings as systems for local delivery of antiresorptive agents to achieve optimal loading of the bioactive coating and its release is described in detail. Various parameters such as the suitable concentrations, release times, and the effects of the antiresorptive agents on nearby cells or bone tissue are discussed. However, further research is needed to support the optimization of the implant, as this will enable subsequent personalized design of the coating in terms of the design and selection of the coating material, the choice of an antiresorptive agent and its amount in the coating. In addition, therapeutic agents that have not yet been incorporated into bioactive coatings but appear promising are also mentioned. From this work, it can be concluded that therapeutic agents contribute to the biocompatibility of the bioactive coating by enhancing its beneficial properties.
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Affiliation(s)
- Dragana Bjelić
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Matjaž Finšgar
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, 2000 Maribor, Slovenia.
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Park JE, Jang YS, Choi JB, Bae TS, Park IS, Lee MH. Evaluation of Corrosion Behavior and In Vitro of Strontium-Doped Calcium Phosphate Coating on Magnesium. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6625. [PMID: 34772160 PMCID: PMC8586916 DOI: 10.3390/ma14216625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/17/2022]
Abstract
This study investigated the biocompatibility of strontium-doped calcium phosphate (Sr-CaP) coatings on pure magnesium (Mg) surfaces for bone applications. Sr-CaP coated specimens were obtained by chemical immersion method on biodegradable magnesium. In this study, Sr-CaP coated magnesium was obtained by immersing pure magnesium in a solution containing Sr-CaP at 80 °C for 3 h. The corrosion resistance and biocompatibility of magnesium according to the content of Sr-CaP coated on the magnesium surface were evaluated. As a result, the corrosion resistance of Sr-CaP coated magnesium was improved compared to pure magnesium. In addition, it was confirmed that the biocompatibility of the group containing Sr was increased. Thus, the Ca-SrP coating with a reduced degradation and improved biocompatibility could be used in Mg-based orthopedic implant applications.
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Affiliation(s)
- Jung-Eun Park
- Department of Dental Biomaterials and Institute of Biodegradable Material and Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54896, Korea; (J.-E.P.); (Y.-S.J.); (J.-B.C.); (T.-S.B.)
| | - Yong-Seok Jang
- Department of Dental Biomaterials and Institute of Biodegradable Material and Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54896, Korea; (J.-E.P.); (Y.-S.J.); (J.-B.C.); (T.-S.B.)
| | - Ji-Bong Choi
- Department of Dental Biomaterials and Institute of Biodegradable Material and Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54896, Korea; (J.-E.P.); (Y.-S.J.); (J.-B.C.); (T.-S.B.)
| | - Tae-Sung Bae
- Department of Dental Biomaterials and Institute of Biodegradable Material and Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54896, Korea; (J.-E.P.); (Y.-S.J.); (J.-B.C.); (T.-S.B.)
| | - Il-Song Park
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development and Institute of Biodegradable Materials, Jeonbuk National University, Jeonju-si 54896, Korea
| | - Min-Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Material and Oral Bioscience, School of Dentistry, Jeonbuk National University, Jeonju-si 54896, Korea; (J.-E.P.); (Y.-S.J.); (J.-B.C.); (T.-S.B.)
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11
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Liu X, Wu Y, Zhao X, Wang Z. Fabrication and applications of bioactive chitosan-based organic-inorganic hybrid materials: A review. Carbohydr Polym 2021; 267:118179. [PMID: 34119147 DOI: 10.1016/j.carbpol.2021.118179] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/03/2021] [Accepted: 04/30/2021] [Indexed: 01/16/2023]
Abstract
Organic-inorganic hybrid materials like bone, shells, and teeth can be found in nature, which are usually composed of biomacromolecules and nanoscale inorganic ingredients. Synergy of organic-inorganic components in hybrid materials render them outstanding and versatile performance. Chitosan is commonly used organic materials in bionic hybrid materials since its bioactive properties and could be controllable tailored by various means to meet complex conditions in different applications. Among these fabrication means, hybridization was favored for its convenience and efficiency. This review discusses three kinds of chitosan-based hybrid materials: hybridized with hydroxyapatite, calcium carbonate, and clay respectively, which are the representative of phosphate, carbonate, and hydrous aluminosilicates. Here, we reported the latest developments of the preparation methods, composition, structure and applications of these bioactive hybrid materials, especially in the biomedical field. Despite the great progress was made in bioactive organic-inorganic hybrid materials based on chitosan, some challenges and specific directions are still proposed for future development in this review.
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Affiliation(s)
- Xiaoyang Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yuxuan Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xinchen Zhao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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12
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Mai X, Kang Z, Wang N, Qin X, Xie W, Song F. Oxygen Plasma Technology-Assisted Preparation of Three-Dimensional Reduced Graphene Oxide/Polypyrrole/Strontium Composite Scaffold for Repair of Bone Defects Caused by Osteoporosis. Molecules 2021; 26:4451. [PMID: 34361602 PMCID: PMC8347243 DOI: 10.3390/molecules26154451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 11/16/2022] Open
Abstract
Repairs of bone defects caused by osteoporosis have always relied on bone tissue engineering. However, the preparation of composite tissue engineering scaffolds with a three-dimensional (3D) macroporous structure poses huge challenges in achieving osteoconduction and osteoinduction for repairing bone defects caused by osteoporosis. In the current study, a three-dimensional macroporous (150-300 μm) reduced graphene oxide/polypyrrole composite scaffold modified by strontium (Sr) (3D rGO/PPY/Sr) was successfully prepared using the oxygen plasma technology-assisted method, which is simple, safe, and inexpensive. The findings of the MTT assay and AO/EB fluorescence double staining showed that 3D rGO/PPY/Sr has a good biocompatibility and effectively promoted MC3T3-E1 cell proliferation. Furthermore, the ALP assay and alizarin red staining showed that 3D rGO/PPY/Sr increased the expression levels of ALP activity and the formation of calcified nodules. The desirable biocompatibility, osteoconduction, and osteoinduction abilities, assure that the 3D macroporous rGO/PPY/Sr composite scaffold offers promising potential for use in the repair of bone defects caused by osteoporosis in bone tissue engineering.
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Affiliation(s)
- Xiaoxue Mai
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
| | - Zebiao Kang
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
| | - Na Wang
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
| | - Xiaoli Qin
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
| | - Weibo Xie
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
- Lanzhou University Second Hospital, Lanzhou 730000, China
| | - Fuxiang Song
- School of Stomatology, Lanzhou University, Lanzhou 730000, China; (X.M.); (Z.K.); (N.W.); (X.Q.)
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13
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Zhang N, Wang W, Zhang X, Nune KC, Zhao Y, Liu N, Misra R, Yang K, Tan L, Yan J. The effect of different coatings on bone response and degradation behavior of porous magnesium-strontium devices in segmental defect regeneration. Bioact Mater 2021; 6:1765-1776. [PMID: 33313453 PMCID: PMC7718143 DOI: 10.1016/j.bioactmat.2020.11.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 11/10/2020] [Accepted: 11/17/2020] [Indexed: 12/12/2022] Open
Abstract
Regeneration of long-bone segmental defects remains a challenge for orthopedic surgery. Current treatment options often require several revision procedures to maintain acceptable alignment and achieve osseous healing. A novel hollow tubular system utilizing magnesium-strontium (Mg-Sr) alloy with autogenous morselized bone filled inside to repair segmental defects was developed. To improve the corrosion and biocompatible properties, two coatings, Ca-P and Sr-P coatings, were prepared on surface of the implants. Feasibility of applying these coated implants was systematically evaluated in vitro and in vivo, and simultaneously to have a better understanding on the relationship of degradation and bone regeneration on the healing process. According to the in vitro corrosion study by electrochemical measurements, greater corrosion resistance was obtained for Ca-P coated sample, and attributed to the double-layer protective structure. The cytotoxicity and alkaline phosphatase (ALP) assays demonstrated enhanced bioactivity for Sr-P coated group because of the long-lasting release of beneficial Sr2+. At 12 weeks post-implantation with Mg-Sr alloy porous device, the segmental defects were effectively repaired with respect to both integrity and continuity. In addition, compared with the Ca-P coated implant, the Sr-P coated implant was more proficient at promoting bone formation and mineralization. In summary, the Sr-P coated implants have bioactive properties and exceptional durability, and promote bone healing that is close to the natural rate, implying their potential application for the regeneration of segmental defects.
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Affiliation(s)
- Nan Zhang
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
| | - Weidan Wang
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Xiuzhi Zhang
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, China
| | - Krishna. C. Nune
- Department of Metallurgical, Material and Biomedical Engineering, The University of Texas at EI Paso, TX, 79968, USA
| | - Ying Zhao
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Na Liu
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, China
| | - R.D.K. Misra
- Department of Metallurgical, Material and Biomedical Engineering, The University of Texas at EI Paso, TX, 79968, USA
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Lili Tan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Jinglong Yan
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
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14
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Jiang S, Wang M, He J. A review of biomimetic scaffolds for bone regeneration: Toward a cell-free strategy. Bioeng Transl Med 2021; 6:e10206. [PMID: 34027093 PMCID: PMC8126827 DOI: 10.1002/btm2.10206] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/05/2020] [Accepted: 11/12/2020] [Indexed: 12/20/2022] Open
Abstract
In clinical terms, bone grafting currently involves the application of autogenous, allogeneic, or xenogeneic bone grafts, as well as natural or artificially synthesized materials, such as polymers, bioceramics, and other composites. Many of these are associated with limitations. The ideal scaffold for bone tissue engineering should provide mechanical support while promoting osteogenesis, osteoconduction, and even osteoinduction. There are various structural complications and engineering difficulties to be considered. Here, we describe the biomimetic possibilities of the modification of natural or synthetic materials through physical and chemical design to facilitate bone tissue repair. This review summarizes recent progresses in the strategies for constructing biomimetic scaffolds, including ion-functionalized scaffolds, decellularized extracellular matrix scaffolds, and micro- and nano-scale biomimetic scaffold structures, as well as reactive scaffolds induced by physical factors, and other acellular scaffolds. The fabrication techniques for these scaffolds, along with current strategies in clinical bone repair, are described. The developments in each category are discussed in terms of the connection between the scaffold materials and tissue repair, as well as the interactions with endogenous cells. As the advances in bone tissue engineering move toward application in the clinical setting, the demonstration of the therapeutic efficacy of these novel scaffold designs is critical.
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Affiliation(s)
- Sijing Jiang
- Department of Plastic SurgeryFirst Affiliated Hospital of Anhui Medical University, Anhui Medical UniversityHefeiChina
| | - Mohan Wang
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
| | - Jiacai He
- Stomatologic Hospital & College, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui ProvinceHefeiChina
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15
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Liu Z, Liu X, Ramakrishna S. Surface engineering of biomaterials in orthopedic and dental implants: Strategies to improve osteointegration, bacteriostatic and bactericidal activities. Biotechnol J 2021; 16:e2000116. [PMID: 33813785 DOI: 10.1002/biot.202000116] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The success of biomedical implants in orthopedic and dental applications is usually limited due to insufficient bone-implant integration, and implant-related infections. Biointerfaces are critical in regulating their interactions and the desirable performance of biomaterials in biological environment. Surface engineering has been widely studied to realize better control of the interface interaction to further enhance the desired behavior of biomaterials. PURPOSE AND SCOPE This review aims to investigate surface coating strategies in hard tissue applications to address insufficient osteointegration and implant-related infection problems. SUMMARY We first focused on surface coatings to enhance the osteointegration and biocompatibility of implants by emphasizing calcium phosphate-related, nanoscale TiO2 -related, bioactive tantalum-based and biomolecules incorporated coatings. Different coating strategies such as plasma spraying, biomimetic deposition, electrochemical anodization and LENS are discussed. We then discussed techniques to construct anti-adhesive and bactericidal surface while emphasizing multifunctional surface coating techniques that combine potential osteointegration and antibacterial activities. The effects of nanotopography via TiO2 coatings on antibacterial performance are interesting and included. A smart bacteria-responsive titanium dioxide nanotubes coating is also attractive and elaborated. CONCLUSION Developing multifunctional surface coatings combining osteogenesis and antimicrobial activity is the current trend. Surface engineering methods are usually combined to obtain hierarchical multiscale surface structures with better biofunctionalization outcomes.
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Affiliation(s)
- Ziqian Liu
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo, China.,Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Xiaoling Liu
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo, China
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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16
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van Hengel IAJ, Laçin M, Minneboo M, Fratila-Apachitei LE, Apachitei I, Zadpoor AA. The effects of plasma electrolytically oxidized layers containing Sr and Ca on the osteogenic behavior of selective laser melted Ti6Al4V porous implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 124:112074. [PMID: 33947566 DOI: 10.1016/j.msec.2021.112074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 02/26/2021] [Accepted: 03/07/2021] [Indexed: 12/14/2022]
Abstract
Surface biofunctionalization is frequently applied to enhance the functionality and longevity of orthopedic implants. Here, we investigated the osteogenic effects of additively manufactured porous Ti6Al4V implants whose surfaces were biofunctionalized using plasma electrolytic oxidation (PEO) in Ca/P-based electrolytes with or without strontium. Various levels of Sr and Ca were incorporated in the oxide layers by using different current densities and oxidation times. Increasing the current density and oxidation time resulted in thicker titanium oxide layers and enhanced the release of Ca2+ and Sr2+. Biofunctionalization with strontium resulted in enhanced pore density, a thinner TiO2 layer, four-fold reduced release of Ca2+, and mainly anatase phases as compared to implants biofunctionalized in electrolytes containing solely Ca/P species under otherwise similar conditions. Different current densities and oxidation times significantly increased the osteogenic differentiation of MC3T3-E1 cells on implants biofunctionalized with strontium, when the PEO treatment was performed with a current density of 20 A/dm2 for 5 and 10 min as well as for a current density of 40 A/dm2 for 5 min. Therefore, addition of Sr in the PEO electrolyte and control of the PEO processing parameters represent a promising way to optimize the surface morphology and osteogenic activity of future porous AM implants.
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Affiliation(s)
- I A J van Hengel
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands.
| | - M Laçin
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands
| | - M Minneboo
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands
| | - L E Fratila-Apachitei
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands
| | - I Apachitei
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands
| | - A A Zadpoor
- Additive Manufacturing Laboratory, Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, the Netherlands
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Costa AI, Gemini-Piperni S, Alves AC, Costa NA, Checca NR, Leite PE, Rocha LA, Pinto AMP, Toptan F, Rossi AL, Ribeiro AR. TiO 2 bioactive implant surfaces doped with specific amount of Sr modulate mineralization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111735. [PMID: 33545878 DOI: 10.1016/j.msec.2020.111735] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/30/2020] [Accepted: 11/11/2020] [Indexed: 11/27/2022]
Abstract
One of the main problems that remain in the implant industry is poor osseointegration due to bioinertness of implants. In order to promote bioactivity, calcium (Ca), phosphorus (P) and strontium (Sr) were incorporated into a TiO2 porous layer produced by micro-arc oxidation. Ca and P as bioactive elements are already well reported in the literature, however, the knowledge of the effect of Sr is still limited. In the present work, the effect of various amounts of Sr was evaluated and the morphology, chemical composition and crystal structure of the oxide layer were investigated. Furthermore, in vitro studies were carried out using human osteoblast-like cells. The oxide layer formed showed a triplex structure, where higher incorporation of Sr increased Ca/P ratio, amount of rutile and promoted the formation of SrTiO3 compound. Biological tests revealed that lower concentrations of Sr did not compromise initial cell adhesion neither viability and interestingly improved mineralization. However, higher concentration of Sr (and consequent higher amount of rutile) showed to induce collagen secretion but with compromised mineralization, possibly due to a delayed mineralization process or induced precipitation of deficient hydroxyapatite. Ca-P-TiO2 porous layer with less concentration of Sr seems to be an ideal candidate for bone implants.
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Affiliation(s)
- A I Costa
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; DEMM - Department of Metallurgical and Materials Engineering, Faculty of Engineering of the University of Porto, Porto, Portugal.
| | - S Gemini-Piperni
- Postgraduate Program of Translational Biomedicine, University Grande Rio, Duque de Caxias, Brazil; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil
| | - A C Alves
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal
| | - N A Costa
- IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Postgraduate Program in Materials Science and Technology, São Paulo State University, Bauru, São Paulo, Brazil
| | - N R Checca
- CBPF - Brazilian Centre for Research in Physics, Rio de Janeiro, Brazil
| | - P E Leite
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil; Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil
| | - L A Rocha
- IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Faculty of Science, Department of Physics, São Paulo State University, Bauru, São Paulo, Brazil
| | - A M P Pinto
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; DEM - Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - F Toptan
- CMEMS-UMinho - Center of MicroElectroMechanical Systems, University of Minho, Guimarães, Portugal; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil
| | - A L Rossi
- CBPF - Brazilian Centre for Research in Physics, Rio de Janeiro, Brazil
| | - A R Ribeiro
- Postgraduate Program of Translational Biomedicine, University Grande Rio, Duque de Caxias, Brazil; IBTN/Br - Brazilian Branch of the Institute of Biomaterials, Tribocorrosion and Nanomedicine, São Paulo State University, Bauru, São Paulo, Brazil; Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Xérem, Rio de Janeiro, Brazil
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Strontium substituted hydroxyapatite with β-lactam integrin agonists to enhance mesenchymal cells adhesion and to promote bone regeneration. Colloids Surf B Biointerfaces 2021; 200:111580. [PMID: 33493943 DOI: 10.1016/j.colsurfb.2021.111580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/28/2020] [Accepted: 01/11/2021] [Indexed: 11/23/2022]
Abstract
Multi-functionalization of calcium phosphates to get delivery systems of therapeutic agents is gaining increasing relevance for the development of functional biomaterials aimed to solve problems related to disorders of the muscolo-skeletal system. In this regard, we functionalized Strontium substituted hydroxyapatite (SrHA) with some β-lactam integrin agonists to develop materials with enhanced properties in promoting cell adhesion and activation of intracellular signaling as well as in counteracting abnormal bone resorption. For this purpose, we selected two monocyclic β-lactams on the basis of their activities towards specific integrins on promoting cell adhesion and signalling. The amount of β-lactams loaded on SrHA could be modulated on changing the polarity of the loading solution, from 3.5-24 wt% for compound 1 and from 3.2-8.4 wt% for compound 2. Studies on the release of the β-lactams from the functionalized SrHA in aqueous medium showed an initial burst followed by a steady-release that ensures a small but constant amount of the compounds over time. The new composites were fully characterized. Co-culture of human primary mesenchymal stem cells (hMSC) and human primary osteoclast (OC) demonstrated that the presence of β-lactams on SrHA favors hMSC adhesion and viability, as well as differentiation towards osteoblastic lineage. Moreover, the β-lactams were found to enhance the inhibitory role of Strontium on osteoclast viability and differentiation.
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19
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Zn- or Cu-containing CaP-Based Coatings Formed by Micro-Arc Oxidation on Titanium and Ti-40Nb Alloy: Part II-Wettability and Biological Performance. MATERIALS 2020; 13:ma13194366. [PMID: 33008055 PMCID: PMC7579516 DOI: 10.3390/ma13194366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 01/13/2023]
Abstract
This work describes the wettability and biological performance of Zn- and Cu-containing CaP-based coatings prepared by micro-arc oxidation on pure titanium (Ti) and novel Ti-40Nb alloy. Good hydrophilic properties of all the coatings were demonstrated by the low contact angles with liquids, not exceeding 45°. An increase in the applied voltage led to an increase of the coating roughness and porosity, thereby reducing the contact angles to 6° with water and to 17° with glycerol. The free surface energy of 75 ± 3 mJ/m2 for all the coatings were determined. Polar component was calculated as the main component of surface energy, caused by the presence of strong polar PO43− and OH− bonds. In vitro studies showed that low Cu and Zn amounts (~0.4 at.%) in the coatings promoted high motility of human adipose-derived multipotent mesenchymal stromal cells (hAMMSC) on the implant/cell interface and subsequent cell ability to differentiate into osteoblasts. In vivo study demonstrated 100% ectopic bone formation only on the surface of the CaP coating on Ti. The Zn- and Cu-containing CaP coatings on both substrates and the CaP coating on the Ti-40Nb alloy slightly decreased the incidence of ectopic osteogenesis down to 67%. The MAO coatings showed antibacterial efficacy against Staphylococcus aureus and can be arranged as follows: Zn-CaP/Ti > Cu-CaP/TiNb, Zn-CaP/TiNb > Cu-CaP/Ti.
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20
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Olivier F, Rochet N, Delpeux-Ouldriane S, Chancolon J, Sarou-Kanian V, Fayon F, Bonnamy S. Strontium incorporation into biomimetic carbonated calcium-deficient hydroxyapatite coated carbon cloth: Biocompatibility with human primary osteoblasts. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111192. [PMID: 32806314 DOI: 10.1016/j.msec.2020.111192] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/07/2020] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
It has already been shown that sono-electrodeposition can be used to coat activated carbon fiber cloth (ACC) with calcium phosphates (CaP) and we recently demonstrated that cathodic polarization at -1 V/Hg/Hg2SO4 was the best parameter to obtain a carbonated calcium deficient hydroxyapatite (CDA) coating with optimal uniformity and homogeneity. In the present study, we investigated whether this technique was suitable to dope this carbonated CDA coating by partial substitution with another bivalent cation such as strontium. We show here that a strontium-substituted carbonated CDA coating can be produced and quantitatively controlled up to at least 10 at.%. In this range we demonstrate that the presence of strontium does not modify either the textural or the structural properties of the carbonated CDA. Owing to the well-known effect of both carbonated CDA and strontium in bone formation, the biocompatibility of ACC coated or not with carbonated CDA or with strontium substituted carbonated CDA was tested using primary human osteoblasts. Our data revealed a positive and dose-dependent effect of strontium addition on osteoblast activity and proliferation. In conclusion, we show here that electrodeposition at -1 V is a suitable and easy process to incorporate cations of biological interest into CaP coating.
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Affiliation(s)
- F Olivier
- CNRS, ICMN UMR 7374, Univ. Orléans, Orléans, France.
| | - N Rochet
- Univ. Côte d'Azur, CNRS, Inserm, iBV, Nice, France
| | | | - J Chancolon
- CNRS, ICMN UMR 7374, Univ. Orléans, Orléans, France
| | | | - F Fayon
- CNRS, CEMHTI UPR 3079, Univ. Orléans, Orléans, France
| | - S Bonnamy
- CNRS, ICMN UMR 7374, Univ. Orléans, Orléans, France
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Li R, Wei Y, Gu L, Qin Y, Li D. Sol-gel-assisted micro-arc oxidation synthesis and characterization of a hierarchically rough structured Ta-Sr coating for biomaterials. RSC Adv 2020; 10:20020-20027. [PMID: 35520438 PMCID: PMC9054214 DOI: 10.1039/d0ra01079k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/20/2020] [Indexed: 12/26/2022] Open
Abstract
Tantalum (Ta) is an element with high chemical stability and ductility that is used in orthopedic biomaterials. When utilized, it can produce a bioactive surface and enhance cell-material interactions, but currently, there exist scarce effective methods to introduce the Ta element onto the surface of implants. This work reported a sol-gel-assisted approach combined with micro-arc oxidation (MAO) to introduce Ta onto the surface of the titanium (TC4) substrate. Specifically, this technique produced a substrate with a hierarchically rough structured topography and introduced strontium ions into the film. The films were uniform and continuous with numerous crater-like micropores. Compared with the TC4 sample (196 ± 35 nm), the roughness of Ta (734 ± 51 nm) and Ta-Sr (728 ± 85 nm) films was significantly higher, and both films (Ta and Ta-Sr) showed increased hydrophilicity when compared with TC4, promoting cell attachment. Additionally, the in vitro experiments indicated that Ta and Ta-Sr films have the potential to enhance the recruitment of cells in the initial culture stages, and improve cell proliferation. Overall, this work demonstrated that the application of Ta and Ta-Sr films to orthopedic implants has the potential to increase the lifetime of the implants. Furthermore, this study also describes an innovative strategy to incorporate Ta into implant films.
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Affiliation(s)
- Ruiyan Li
- Department of Orthopedics, The Second Hospital of Jilin University Changchun 130041 China
| | - Yongjie Wei
- Key Laboratory of Automobile Materials of MOE, Department of Materials Science and Engineering, Jilin University Changchun 130012 China
| | - Long Gu
- Key Laboratory of Automobile Materials of MOE, Department of Materials Science and Engineering, Jilin University Changchun 130012 China
| | - Yanguo Qin
- Department of Orthopedics, The Second Hospital of Jilin University Changchun 130041 China
| | - Dongdong Li
- Key Laboratory of Automobile Materials of MOE, Department of Materials Science and Engineering, Jilin University Changchun 130012 China
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Comparative Study of the Structure, Properties, and Corrosion Behavior of Sr-Containing Biocoatings on Mg0.8Ca. MATERIALS 2020; 13:ma13081942. [PMID: 32326091 PMCID: PMC7215743 DOI: 10.3390/ma13081942] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 12/15/2022]
Abstract
A comparative analysis of the structure, properties and the corrosion behavior of the micro-arc coatings based on Sr-substituted hydroxyapatite (Sr-HA) and Sr-substituted tricalcium phosphate (Sr-TCP) deposited on Mg0.8Ca alloy substrates was performed. The current density during the formation of the Sr-HA coatings was higher than that for the Sr-TCP coatings. As a result, the Sr-HA coatings were thicker and had a greater surface roughness Ra than the Sr-TCP coatings. In addition, pore sizes of the Sr-HA were almost two times larger. The ratio (Ca + Sr + Mg)/P were equal 1.64 and 1.47 for Sr-HA and Sr-TCP coatings, respectively. Thus, it can be assumed that the composition of Sr-HA and Sr-TCP coatings was predominantly presented by (Sr,Mg)-substituted hydroxyapatite and (Sr,Mg)-substituted tricalcium phosphate. However, the average content of Sr was approximately the same for both types of the coatings and was equal to 1.8 at.%. The Sr-HA coatings were less soluble and had higher corrosion resistance than the Sr-TCP coatings. Cytotoxic tests in vitro demonstrated a higher cell viability after cultivation with extracts of the Sr-HA coatings.
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Characterization and cytocompatibility of hierarchical porous TiO2 coatings incorporated with calcium and strontium by one-step micro-arc oxidation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110610. [DOI: 10.1016/j.msec.2019.110610] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 12/18/2019] [Accepted: 12/26/2019] [Indexed: 12/22/2022]
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Production of High Silicon-Doped Hydroxyapatite Thin Film Coatings via Magnetron Sputtering: Deposition, Characterisation, and In Vitro Biocompatibility. COATINGS 2020. [DOI: 10.3390/coatings10020190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In recent years, it has been found that small weight percent additions of silicon to HA can be used to enhance the initial response between bone tissue and HA. A large amount of research has been concerned with bulk materials, however, only recently has the attention moved to the use of these doped materials as coatings. This paper focusses on the development of a co-RF and pulsed DC magnetron sputtering methodology to produce a high percentage Si containing HA (SiHA) thin films (from 1.8 to 13.4 wt.%; one of the highest recorded in the literature to date). As deposited thin films were found to be amorphous, but crystallised at different annealing temperatures employed, dependent on silicon content, which also lowered surface energy profiles destabilising the films. X-ray photoelectron spectroscopy (XPS) was used to explore the structure of silicon within the films which were found to be in a polymeric (SiO2; Q4) state. However, after annealing, the films transformed to a SiO44−, Q0, state, indicating that silicon had substituted into the HA lattice at higher concentrations than previously reported. A loss of hydroxyl groups and the maintenance of a single-phase HA crystal structure further provided evidence for silicon substitution. Furthermore, a human osteoblast cell (HOB) model was used to explore the in vitro cellular response. The cells appeared to prefer the HA surfaces compared to SiHA surfaces, which was thought to be due to the higher solubility of SiHA surfaces inhibiting protein mediated cell attachment. The extent of this effect was found to be dependent on film crystallinity and silicon content.
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Chen Y, Liu Z, Jiang T, Zou X, Lei L, Yan W, Yang J, Li B. Strontium‐substituted biphasic calcium phosphate microspheres promoted degradation performance and enhanced bone regeneration. J Biomed Mater Res A 2019; 108:895-905. [DOI: 10.1002/jbm.a.36867] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Ying Chen
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Zhongning Liu
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Ting Jiang
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Xinyu Zou
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices Chongqing University of Science and Technology Chongqing China
| | - Lei Lei
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Wenjuan Yan
- First Clinical Division School and Hospital of Stomatology Peking University Beijing China
| | - Jingwen Yang
- Department of Prosthodontics Peking University School and Hospital of Stomatology; National Clinical Research Center for Oral Diseases; National Engineering Laboratory for Digital and Material Technology of Stomatology; Beijing Key Laboratory of Digital Stomatology Beijing China
| | - Bo Li
- Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices Chongqing University of Science and Technology Chongqing China
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Zhou W, Wang T, Gan Y, Yang J, Zhu H, Wang A, Wang Y, Xi W. Effect of micropore/microsphere topography and a silicon-incorporating modified titanium plate surface on the adhesion and osteogenic differentiation of BMSCs. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 48:230-241. [PMID: 31851839 DOI: 10.1080/21691401.2019.1699829] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Wuchao Zhou
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
| | - Tiesheng Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
- Department of Oral and Maxillofacial Surgery, Pingxiang People's Hospital, Pingxiang, China
| | - Yanzi Gan
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
| | - Jian Yang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
| | - Hongshui Zhu
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
| | - Anxun Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yujiang Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
| | - Weihong Xi
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine of Jiangxi Province, Medical College of Nanchang University, Nanchang, China
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Su Y, Cockerill I, Zheng Y, Tang L, Qin YX, Zhu D. Biofunctionalization of metallic implants by calcium phosphate coatings. Bioact Mater 2019; 4:196-206. [PMID: 31193406 PMCID: PMC6529680 DOI: 10.1016/j.bioactmat.2019.05.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/26/2019] [Accepted: 05/14/2019] [Indexed: 01/07/2023] Open
Abstract
Metallic materials have been extensively applied in clinical practice due to their unique mechanical properties and durability. Recent years have witnessed broad interests and advances on surface functionalization of metallic implants for high-performance biofunctions. Calcium phosphates (CaPs) are the major inorganic component of bone tissues, and thus owning inherent biocompatibility and osseointegration properties. As such, they have been widely used in clinical orthopedics and dentistry. The new emergence of surface functionalization on metallic implants with CaP coatings shows promise for a combination of mechanical properties from metals and various biofunctions from CaPs. This review provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings. We first glance over different types of CaPs with their coating methods and in vitro and in vivo performances, and then give insight into the representative biofunctions, i.e. osteointegration, corrosion resistance and biodegradation control, and antibacterial property, provided by CaP coatings for metallic implant materials.
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Affiliation(s)
- Yingchao Su
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
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Steffi C, Shi Z, Kong CH, Chong SW, Wang D, Wang W. Use of Polyphenol Tannic Acid to Functionalize Titanium with Strontium for Enhancement of Osteoblast Differentiation and Reduction of Osteoclast Activity. Polymers (Basel) 2019; 11:E1256. [PMID: 31362449 PMCID: PMC6723407 DOI: 10.3390/polym11081256] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/18/2019] [Accepted: 07/25/2019] [Indexed: 12/22/2022] Open
Abstract
Implant anchorage remains a challenge, especially in porous osteoporotic bone with high osteoclast activity. The implant surface is modified with osteogenic molecules to stimulate osseointegration. Strontium (Sr) is known for its osteogenic and anti-osteoclastogenic effects. In this study, Sr was immobilized on a titanium (Ti) surface using bioinspired polyphenol tannic acid (pTAN) coating as an ad-layer (Ti-pTAN). Two separate coating techniques were employed for comparative analysis. In the first technique, Ti was coated with a tannic acid solution containing Sr (Ti-pTAN-1Stp). In the second method, Ti was first coated with pTAN, before being immersed in a SrCl2 solution to immobilize Sr on Ti-pTAN (Ti-pTAN-2Stp). Ti-pTAN-1Stp and Ti-pTAN-2Stp augmented the alkaline phosphatase activity, collagen secretion, osteocalcin production and calcium deposition of MC3T3-E1 cells as compared to those of Ti and Ti-pTAN. However, osteoclast differentiation of RAW 264.7, as studied by TRAP activity, total DNA, and multinucleated cell formation, were decreased on Ti-pTAN, Ti-pTAN-1Stp and Ti-pTAN-2Stp as compared to Ti. Of all the substrates, osteoclast activity on Ti-pTAN-2Stp was the lowest. Hence, an economical and simple coating technique using pTAN as an adlayer preserved the dual biological effects of Sr. These results indicate a promising new approach to tailoring the cellular responses of implant surfaces.
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Affiliation(s)
- Chris Steffi
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Zhilong Shi
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Chee Hoe Kong
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Sue Wee Chong
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Dong Wang
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore
| | - Wilson Wang
- Department of Orthopaedic Surgery, National University of Singapore, NUHS Tower Block Level 11, 1E Kent Ridge Road, Singapore 119228, Singapore.
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Han X, Zhou X, Qiu K, Feng W, Mo H, Wang M, Wang J, He C. Strontium-incorporated mineralized PLLA nanofibrous membranes for promoting bone defect repair. Colloids Surf B Biointerfaces 2019; 179:363-373. [DOI: 10.1016/j.colsurfb.2019.04.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/15/2019] [Accepted: 04/05/2019] [Indexed: 01/14/2023]
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He W, Yin X, Xie L, Liu Z, Li J, Zou S, Chen J. Enhancing osseointegration of titanium implants through large-grit sandblasting combined with micro-arc oxidation surface modification. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:73. [PMID: 31187259 DOI: 10.1007/s10856-019-6276-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
PURPOSE The demand for titanium dental implants has risen sharply. However, the clinical success rate of implant surgery needs to be improved. In this paper, we report a novel surface modification strategy, large-grit sandblasting combined with micro-arc oxidation (SL-MAO), aiming to promote peri-implant bone formation and osseointegration of titanium implants. MATERIALS AND METHODS Modified titanium samples were prepared by large-grit sandblasting and acid etching (SLA), micro-arc oxidation (MAO), and SL-MAO. The resulting topographical changes and chemical composition of the samples were examined by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS), respectively, and the biocompatibility and bioactivity were analyzed by bone-marrow mesenchymal stem cells (BMMSC) adhesion tests. Modified titanium implants were also inserted into the femurs of beagle dogs, and their competence of osseointegration was appraised by quantitative histomorphometry and micro-computed-tomography (micro-CT) analyses. RESULTS Compared to SLA and MAO techniques, SL-MAO surface modification further enhanced titanium surfaces by creating a topographic morphology characterized by both micron-sized craters and sub-micron-scale pits, and resulted in superior chemical composition, which promoted cell adhesion, proliferation, and osteogenic differentiation. SL-MAO-modified titanium implants osseointegrated more efficiently than SLA or MAO controls, with significantly higher bone-area (BA) ratio and bone-implant contact (BIC) in the peri-implant region. CONCLUSIONS The SL-MAO surface modification technique optimized the surface properties of titanium implants and enhanced peri-implant bone formation and osseointegration.
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Affiliation(s)
- Wulin He
- Stomatological Hospital, Southern Medical University, No. 366, South Jiangnan Avenue, Guangzhou, 510280, Guangdong, China
| | - Xing Yin
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Li Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
- College of Materials Science and Engineering, Sichuan University, 610064, Chengdu, China
| | - Zeping Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Jingtao Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Jianwei Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
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Lin G, Zhou C, Lin M, Xu A, He F. Strontium‐incorporated titanium implant surface treated by hydrothermal reactions promotes early bone osseointegration in osteoporotic rabbits. Clin Oral Implants Res 2019; 30:777-790. [PMID: 31104360 DOI: 10.1111/clr.13460] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 04/27/2019] [Accepted: 05/07/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Guofen Lin
- Department of General Dentistry, The Affiliated Stomatology Hospital, School of Medicine Zhejiang University Hangzhou China
| | - Chuan Zhou
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine Zhejiang University Hangzhou China
| | - Mengna Lin
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine Zhejiang University Hangzhou China
| | - Antian Xu
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine Zhejiang University Hangzhou China
| | - Fuming He
- Department of Prosthodontics, The Affiliated Stomatology Hospital, School of Medicine Zhejiang University Hangzhou China
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Nguyen TDT, Jang YS, Lee MH, Bae TS. Effect of strontium doping on the biocompatibility of calcium phosphate-coated titanium substrates. J Appl Biomater Funct Mater 2019; 17:2280800019826517. [PMID: 30803306 DOI: 10.1177/2280800019826517] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND: Titanium biomedical devices coated with strontium-doped calcium phosphate ceramics can support desirable bone regeneration through anabolic and anti-catabolic effects of strontium and the compositions close to that of natural mineral tissue. METHODS: Strontium was doped into the calcium phosphate coating using the cyclic pre-calcification method on the anodized titanium plate. The effects of the different concentration of strontium in treatment solution and cycle numbers of the pre-calcification treatment on the biocompatibility were investigated in terms of the changes in morphology and chemical composition of coating, ion release pattern and cytocompatibility in vitro. RESULTS: At a high substitution ratio of strontium in the calcium phosphate coating, the size of precipitated particles was decreased and the solubility of the coating was increased. ASH55 group, which was coated by pre-calcification treatment of 20 cycles in coating solution with Sr:Ca molar ratio of 5:5, exhibited superior cellular attachment at 1 day and proliferation after 7 days of culturing in comparison with the non-doped surface and other doped surfaces. CONCLUSION: Sufficient strontium doping concentrations in calcium phosphate coating can enhance cell adhesion and proliferation on the titanium biomedical devices for bone regeneration.
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Affiliation(s)
- Thuy-Duong Thi Nguyen
- 1 Odonto-stomatology Faculty, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Yong-Seok Jang
- 2 Department of Dental Biomaterials and Institute of Biodegradable Material, Chonbuk National University, Jeonju, South Korea
| | - Min-Ho Lee
- 2 Department of Dental Biomaterials and Institute of Biodegradable Material, Chonbuk National University, Jeonju, South Korea
| | - Tae-Sung Bae
- 2 Department of Dental Biomaterials and Institute of Biodegradable Material, Chonbuk National University, Jeonju, South Korea
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Wieszczycka K, Staszak K, Woźniak-Budych MJ, Jurga S. Lanthanides and tissue engineering strategies for bone regeneration. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Khalifehzadeh R, Arami H. DNA-Templated Strontium-Doped Calcium Phosphate Nanoparticles for Gene Delivery in Bone Cells. ACS Biomater Sci Eng 2019; 5:3201-3211. [PMID: 31592442 PMCID: PMC6779169 DOI: 10.1021/acsbiomaterials.8b01587] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Calcium phosphates (CaPs), constituents of the inorganic phase of natural bone, are highly biocompatible and biodegradable. Strontium (Sr) regulates the formation and resorption of bone. Incorporation of Sr into CaPs may target genes of interest to bone cells while regulating their function. In this work, we developed a single-step synthesis method to prepare Sr-doped CaP nanoparticles (SrCaP-DNA NPs) by using DNA as a template for controlling the mineralization and the stability of the colloidal solution. The resulting nanoparticles were monodispersed with well-controlled size, morphology, and composition. By using this method, we were able to fabricate CaP NPs with varying contents of Sr2+. We demonstrated that the stability of CaP NPs in extracellular environments increased when Sr2+ partially replaced Ca2+ in CaP NPs. We showed that the cellular uptake of SrCaP-DNA NPs and the efficiency of gene transfer and alkaline phosphatase activity in human fetal osteoblastic cell line (hFOB1.19) were dependent on the content of Sr2+ in NPs. Together with other studies, our results suggest SrCaP-DNA NPs can be optimized for targeted gene transfer to regulate function of bone cells, enabling applications such as bone tissue engineering and treating bone diseases.
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Affiliation(s)
- Razieh Khalifehzadeh
- Department of Chemical Engineering, Stanford University, Shriram Center, 443 Via Ortega, Stanford, California 94305, United States
- Department of Radiology, Stanford University School of Medicine, James H. Clark Center, 318 Campus Drive, E-153, Stanford, California 94305, United States
| | - Hamed Arami
- Department of Radiology, Stanford University School of Medicine, James H. Clark Center, 318 Campus Drive, E-153, Stanford, California 94305, United States
- Molecular Imaging Program at Stanford (MIPS), Stanford University School of Medicine, James H. Clark Center, 318 Campus Drive, E-153, Stanford, California 94305, United States
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Qiao H, Song G, Huang Y, Yang H, Han S, Zhang X, Wang Z, Ma J, Bu X, Fu L. Si, Sr, Ag co-doped hydroxyapatite/TiO 2 coating: enhancement of its antibacterial activity and osteoinductivity. RSC Adv 2019; 9:13348-13364. [PMID: 35519590 PMCID: PMC9063874 DOI: 10.1039/c9ra01168d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/15/2019] [Indexed: 11/21/2022] Open
Abstract
A multifaceted coating with favourable cytocompatibility, osteogenic activity and antibacterial properties would be of great significance and value due to its capability for improving osseointegration and alleviating prosthesis loosening. This study marks the first report on the coating of TiO2 nanotubular (TNT) arrays with Sr-and-Si-substituted hydroxyapatite (SSHA) endowed with antibacterial characteristics using silver ions. This TNT layer coated with Ag-substituted SSHA (SSAgHA) formed a composite coating with an interconnected microporous structure and a homogeneous distribution of Sr, Si and Ag; such a coating promoted cell adhesion and osteogenic potential. The anchoring effect of the TNT layer improved the adhesion strength of the SSAgHA/TNT coating to 16.9 ± 3.1 MPa, which was higher than the 15 MPa set in the ISO standard 13 779-4:2002. Moreover, the bio-corrosion resistance of the underlying Ti substrate was greatly enhanced by the composite coating. Hydroxyapatite (HA) and SSAgHA coatings provided a suitable environment for the adhesion, spreading and proliferation of mouse osteoblasts. The SSAgHA coating excellently inhibited bacterial activity and enhanced osteoinductivity with higher osteogenic differentiation compared with the HA coating. Sr and Si dopants increased the expression levels of the genes related to osteogenesis and successfully offset the potential cytotoxicity of Ag ions. Super-osteoinductivity was attributed to the rough and superhydrophilic surface of the composite coating. Therefore, the present study demonstrated the potential of the electrodeposited SSAgHA/TNT composite coating as a promising metallic implant with great intrinsic antibacterial activity and osteointegration ability.
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Affiliation(s)
- Haixia Qiao
- College of Lab Medicine, Hebei North University Zhangjiakou 075000 China +86 313 4029270
| | - Guiqin Song
- College of Lab Medicine, Hebei North University Zhangjiakou 075000 China +86 313 4029270
| | - Yong Huang
- College of Lab Medicine, Hebei North University Zhangjiakou 075000 China +86 313 4029270
| | - Hao Yang
- Key Laboratory for Green Chemical Process of Ministry of Education, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology Wuhan 430205 China
| | - Shuguang Han
- School of Life Science and Technology, University of Electronic Science and Technology of China Chengdu 610054 China
| | - Xuejiao Zhang
- College of Lab Medicine, Hebei North University Zhangjiakou 075000 China +86 313 4029270
| | - Zhenhui Wang
- No. 81st Group Military Hospital of PLA Army Zhangjiakou 075000 China
| | - Jing Ma
- No. 81st Group Military Hospital of PLA Army Zhangjiakou 075000 China
| | - Xiaopei Bu
- No. 81st Group Military Hospital of PLA Army Zhangjiakou 075000 China
| | - Li Fu
- College of Materials and Environmental Engineering, Hangzhou Dianzi University Hangzhou 310018 China
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Lu X, Zhang W, Liu Z, Ma S, Sun Y, Wu X, Zhang X, Gao P. Application of a Strontium-Loaded, Phase-Transited Lysozyme Coating to a Titanium Surface to Enhance Osteogenesis and Osteoimmunomodulation. Med Sci Monit 2019; 25:2658-2671. [PMID: 30973161 PMCID: PMC6476409 DOI: 10.12659/msm.914269] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background To fabricate strontium (Sr)-incorporated titanium (Ti) surfaces by a novel 1-step phase-transited lysozyme (PTL) treatment, and investigate the effects of the prepared samples on osteogenesis and osteoimmunoregulation. Material/Methods Five groups of titanium specimens were prepared, including Ti, PTL, PTL@10Sr (PTL coating with 10 mg/mL Sr), PTL@20Sr PTL coating with 20 mg/mL Sr), and PTL@50Sr (PTL coating with 50 mg/mL Sr) groups. Behaviors of bone marrow mesenchymal stem cells (BMSCs) such as initial attachment, spread, proliferation, and migration, on different surfaces were examined by immunofluorescence, MTS assay, and Transwell system. Then the osteogenic differentiation of BMSCs was detected. When an immune response was factored in, the polarization of macrophages induced by the prepared surfaces was detected by real-time PCR, and the response of BMSCs to macrophage-conditioned medium was assessed in terms of cell migration and osteogenic differentiation. Finally, an in vivo study was performed, using the rat femora implant model, to evaluate the potential for osteogenic induction and osteoimmunoregulation of materials. Results Our in vitro experiments indicated that PTL coating could improve cell spread and adhesion, and the stable Sr release of PTL@Sr layers could promote cell migration and osteogenesis. Moreover, PTL@Sr surface could regulate the immune response of macrophages resulting in enhanced BMSCs recruitment and osteogenic differentiation. The in vivo evaluation showed less inflammatory infiltration and improved bone formation in the PTL@20Sr group. Conclusions The Sr-loaded PTL layers have greater potential for the induction of osteogenic differentiation of BMSCs, meanwhile Sr-loaded PTL layers could adjust the immune response and thus promote osteogenesis both in vitro and in vivo.
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Affiliation(s)
- Xin Lu
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Wenxin Zhang
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Zihao Liu
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Shiqing Ma
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Yingchun Sun
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Xudong Wu
- Department of Cell Biology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin, China (mainland)
| | - Xu Zhang
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
| | - Ping Gao
- Tianjin Medical University School and Hospital of Stomatology, Tianjin, China (mainland)
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Yang BC, Zhou XD, Yu HY, Wu Y, Bao CY, Man Y, Cheng L, Sun Y. [Advances in titanium dental implant surface modification]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2019; 37:124-129. [PMID: 31168977 PMCID: PMC7030153 DOI: 10.7518/hxkq.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/02/2019] [Indexed: 02/05/2023]
Abstract
Titanium dental implants have wide clinical application due to their many advantages, including comfort, aesthetics, lack of damage to adjacent teeth, and significant clinical effects. However, the failure of osseointegration, bone resorption, and peri-implantitis limits their application. Physical-chemical and bioactive coatings on the surface of titanium implants could improve the successful rate of dental implants and meet the clinical application requirements. This paper reviews the characteristics of surface modification of titanium implants from the aspects of physics, chemistry, and biology. Results provide information for research and clinical application of dental implant materials.
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Affiliation(s)
- Bang-Cheng Yang
- Engineering Research Center in Biomaterials, Sichuan University & Sichuan Guojia Biomaterials Co., Ltd, Chengdu 610064, China
| | - Xue-Dong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Conservative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hai-Yang Yu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yao Wu
- Engineering Research Center in Biomaterials, Sichuan University & Sichuan Guojia Biomaterials Co., Ltd, Chengdu 610064, China
| | - Chong-Yun Bao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yi Man
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Conservative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yao Sun
- Dept. of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai 200072, China
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Wang W, Nune KC, Tan L, Zhang N, Dong J, Yan J, Misra RDK, Yang K. Bone regeneration of hollow tubular magnesium‑strontium scaffolds in critical-size segmental defects: Effect of surface coatings. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:297-307. [PMID: 30948064 DOI: 10.1016/j.msec.2019.02.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/18/2019] [Accepted: 02/16/2019] [Indexed: 12/20/2022]
Abstract
Segmental defects are formidable challenges for orthopedic surgeons that are caused by large osseous defects such as open injury, comminuted fracture as well as other severe traumas and infection. Current treatment options have practical and clinical shortcomings, calling for innovative bone graft materials. This study is related to hollow tubular magnesium‑strontium (MgSr) alloy scaffolds with autologous morselized bone filled inside and three different coatings were individually applied on MgSr scaffolds, respectively, to study the effects of degradation and bioactivity of the grafts on new bone growth. The optimal coating method was screened using immersion tests, cell proliferation and adhesion, alkaline phosphatase (ALP) assay in vitro, and 4 weeks' implantation in a critical-size segmental defect in vivo. More new bone formation was observed by radiographic tests and histology along the ulna defects, when magnesium scaffold grafts were implanted. Meanwhile, depression occurred for blank control group with only autologous morselized bone filled, because of rapid absorption rate of morselized bone during initial implantation. Therefore, biodegradable MgSr alloy grafts showed their potential application in treating the critical-size segmental defects. As for different coating methods, CaP chemically deposited (CaP) coated sample showed least H2 evolution in vivo, demonstrating highest corrosion resistance and relative stable interfaces, however, the least beneficial ion release meanwhile. Micro-arc oxidation coating (MAO) degraded faster comparing with CaP, while with the main composition of MgO. They both indicate insufficient bioactivity in bone formation. The results suggest superior combination of bioactive surface, beneficial ions release and appropriate corrosion rate of Strontium phosphate conversion (SrP) coating, indicating superior comprehensive oeteoconductive and osteoinductive properties of coatings on hollow tubular MgSr alloy scaffold.
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Affiliation(s)
- W Wang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - K C Nune
- Department of Metallurgical, Material and Biomedical Engineering, The University of Texas at EI Paso, TX 79968, USA
| | - L Tan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
| | - N Zhang
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
| | - J Dong
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - J Yan
- Department of Orthopedic Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, 150081, China
| | - R D K Misra
- Department of Metallurgical, Material and Biomedical Engineering, The University of Texas at EI Paso, TX 79968, USA.
| | - K Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
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39
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Chen X, Chen Y, Shen J, Xu J, Zhu L, Gu X, He F, Wang H. Positive modulation of osteogenesis on a titanium oxide surface incorporating strontium oxide: An in vitro and in vivo study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:710-718. [PMID: 30889744 DOI: 10.1016/j.msec.2019.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 01/15/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023]
Abstract
Surface chemistry and topography can determinatively affect the osseointegration of dental implants. Strontium (Sr) has a significant effect on the promotion of bone formation and inhibitation of bone resorption. The emphasis of this study lies on the evaluation of a new surface treatment that aims to improve the early osseointegration of dental implantation both in vitro and in vivo. A hydrothermal method was used to prepare an SrTiO3 incorporation on sandblasted large-grit double acid-etched (SLA) titanium surfaces in SrCl2 solution. The composition and morphology of the SrTiO3 doped surface were analyzed by X-ray diffraction, X-ray photoelectron spectroscopy,and scanning electron microscopy. In addition, the external release figure of Sr was examined by inductively coupled plasma mass spectrometry. The proliferation, adhesion and differentiation of MC3T3-E1 cells on this surface were evaluated in vitro and presented a significant increase in SLA-Sr group compared with that in SLA group. An in vivo study in 24 New Zealand rabbits indicated a remarkable growth in the volume of direct bone-to-implant contact and peri-implant bone in SLA-Sr group, which were compared with SLA group after 3 and 6 weeks, and removal torque tests exhibited a higher torque removal value of SLA-Sr implants. The study gave the result that the biological effect of SLA-Sr implants was significantly superior to that of the SLA implants at the early stage of osseointegration.
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Affiliation(s)
- Xiaoyi Chen
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Yun Chen
- Department of oral Implantology, Xiamen Stomatology Hospital, Xiamen 361003, China
| | - Jianwei Shen
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Junhua Xu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Liqin Zhu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Xinhua Gu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Fuming He
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
| | - Huiming Wang
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
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40
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Liu F, Li Y, Liang J, Sui W, Bellare A, Kong L. Effects of micro/nano strontium‐loaded surface implants on osseointegration in ovariectomized sheep. Clin Implant Dent Relat Res 2019; 21:377-385. [DOI: 10.1111/cid.12719] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/04/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Fuwei Liu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
| | - Yongfeng Li
- Department of StomatologyPLA 301 Hospital Beijing People's Republic of China
| | - Jianfei Liang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
| | - Wen Sui
- Department of StomatologyShenzhen Hospital of Southern Medical University Shenzhen People's Republic of China
| | - Anuj Bellare
- Department of Orthopedic SurgeryBrigham and Women's Hospital Boston Massachusetts
| | - Liang Kong
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial SurgerySchool of Stomatology, The Fourth Military Medical University Xi'an People's Republic of China
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Devi KB, Tripathy B, Roy A, Lee B, Kumta PN, Nandi SK, Roy M. In Vitro Biodegradation and In Vivo Biocompatibility of Forsterite Bio-Ceramics: Effects of Strontium Substitution. ACS Biomater Sci Eng 2018; 5:530-543. [DOI: 10.1021/acsbiomaterials.8b00788] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- K. Bavya Devi
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology−Kharagpur, Kharagpur 721302, India
| | - Bipasa Tripathy
- Department of Veterinary Surgery & Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | | | | | | | - Samit Kumar Nandi
- Department of Veterinary Surgery & Radiology, West Bengal University of Animal & Fishery Sciences, Kolkata 700037, India
| | - Mangal Roy
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology−Kharagpur, Kharagpur 721302, India
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42
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Orapiriyakul W, Young PS, Damiati L, Tsimbouri PM. Antibacterial surface modification of titanium implants in orthopaedics. J Tissue Eng 2018; 9:2041731418789838. [PMID: 30083308 PMCID: PMC6071164 DOI: 10.1177/2041731418789838] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 06/29/2018] [Indexed: 12/18/2022] Open
Abstract
The use of biomaterials in orthopaedics for joint replacement, fracture healing and bone regeneration is a rapidly expanding field. Infection of these biomaterials is a major healthcare burden, leading to significant morbidity and mortality. Furthermore, the cost to healthcare systems is increasing dramatically. With advances in implant design and production, research has predominately focussed on osseointegration; however, modification of implant material, surface topography and chemistry can also provide antibacterial activity. With the increasing burden of infection, it is vitally important that we consider the bacterial interaction with the biomaterial and the host when designing and manufacturing future implants. During this review, we will elucidate the interaction between patient, biomaterial surface and bacteria. We aim to review current and developing surface modifications with a view towards antibacterial orthopaedic implants for clinical applications.
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Affiliation(s)
- Wich Orapiriyakul
- Centre for the Cellular Microenvironment, College of Medical, Veterinary & Life Sciences, Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow, UK
| | - Peter S Young
- Centre for the Cellular Microenvironment, College of Medical, Veterinary & Life Sciences, Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow, UK
| | - Laila Damiati
- Centre for the Cellular Microenvironment, College of Medical, Veterinary & Life Sciences, Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow, UK
| | - Penelope M Tsimbouri
- Centre for the Cellular Microenvironment, College of Medical, Veterinary & Life Sciences, Institute of Molecular, Cell and Systems Biology, University of Glasgow, Glasgow, UK
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43
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Göker F, Ersanlı S, Arısan V, Cevher E, Güzel EE, İşsever H, Ömer B, Durmuş Altun G, Morina D, Ekiz Yılmaz T, Dervişoğlu E, Del Fabbro M. Combined effect of parathyroid hormone and strontium ranelate on bone healing in ovariectomized rats. Oral Dis 2018; 24:1255-1269. [DOI: 10.1111/odi.12895] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/27/2018] [Accepted: 05/10/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Funda Göker
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche; Istituto Ortopedico Galeazzi I.R.C.C.S.; Università degli Studi di Milano; Milano Italy
| | - Selim Ersanlı
- Oral Implantology Department; Faculty of Dentistry; Istanbul University; Fatih, Istanbul Turkey
| | - Volkan Arısan
- Oral Implantology Department; Faculty of Dentistry; Istanbul University; Fatih, Istanbul Turkey
| | - Erdal Cevher
- Department of Pharmaceutical Technology; Faculty of Pharmacy; Istanbul University; Beyazıt, Istanbul Turkey
| | - Emine Elif Güzel
- Department of Histology and Embryology; Faculty of Medicine; Istanbul University; Istanbul Turkey
| | - Halim İşsever
- Department of Public Health; Faculty of Medicine; Istanbul University; Fatih, Istanbul Turkey
| | - Beyhan Ömer
- Department of Biochemistry; Faculty of Medicine; Istanbul University; Fatih, Istanbul Turkey
| | - Gülay Durmuş Altun
- Department of Nuclear Medicine; Faculty of Medicine; Trakya University; Edirne Turkey
| | - Deniz Morina
- Department of Pharmaceutical Technology; Faculty of Pharmacy; Istanbul University; Beyazıt, Istanbul Turkey
| | - Tuğba Ekiz Yılmaz
- Department of Histology and Embryology; Faculty of Medicine; Istanbul University; Istanbul Turkey
| | - Elmire Dervişoğlu
- Department of Biochemistry; Faculty of Medicine; Istanbul University; Fatih, Istanbul Turkey
| | - Massimo Del Fabbro
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche; Istituto Ortopedico Galeazzi I.R.C.C.S.; Università degli Studi di Milano; Milano Italy
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44
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Effect of a biomimetic titania mesoporous coating doped with Sr on the osteogenic activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:153-162. [PMID: 30033242 DOI: 10.1016/j.msec.2018.05.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 03/20/2018] [Accepted: 05/08/2018] [Indexed: 12/19/2022]
Abstract
Fabrication of titanium (Ti)-based biomedical implants with appropriate topography as well as capacity for drug delivery is highly pursued in the field of orthopedic and dental implants. In this study, a biomimetic mesoporous coating imbedded with strontium (MPs-Sr) is prepared by the high current anodization (HCA) and hydrothermal treatment (HT). This coating provides a more stable mechanical performance than the conventional nanotube arrays. The Sr loading is regulated by the HT reaction time and the Sr is released in a controllable manner from the MPs-Sr surface. The hydrophilic performance of MPs-Sr are significantly improved. Furthermore, it is showed that the attachment and spreading of preosteoblast MC3T3-E1 cells are significantly up-regulated by the nanoscale topology of MPs and the doped Sr. The improved collagen secretion and matrix mineralization levels of cells are closely related with the Sr release. The excellent osteogenic properties of MPs-Sr samples highlight their promising potential for use in clinical application.
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46
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Zhang W, Huang D, Zhao F, Gao W, Sun L, Li X, Chen X. Synergistic effect of strontium and silicon in strontium-substituted sub-micron bioactive glass for enhanced osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 89:245-255. [PMID: 29752095 DOI: 10.1016/j.msec.2018.04.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 03/30/2018] [Accepted: 04/10/2018] [Indexed: 10/17/2022]
Abstract
Strontium-substituted sub-micron bioactive glasses (Sr-SBG) have been reported to have enhanced osteogenic differentiation capacity compared to sub-micron bioactive glasses (SBG) in our previous study. However, the underlying molecular mechanisms of such beneficial effect of Sr-SBG are still not fully understood. In this study, we synthesized Sr-SBG, studied the effects of Sr-SBG on proliferation and osteogenic differentiation of mouse mesenchymal stem cells (mMSCs), and identified the molecular mechanisms of the enhancement effect of Sr-SBG on mMSCs. The results demonstrated that Sr-SBG had more profound promotion effect on proliferation and osteogenic differentiation of mMSCs than SBG and SrCl2 group which containing identical Sr concentration with Sr-SBG group. RT-qPCR and western blot analysis showed that the mRNA expressions and protein expressions involved in NFATc and Wnt/β-catenin signaling pathways were all upregulated mediated by Sr-SBG, while only Wnt/β-catenin signaling pathway related genes upregulated in SBG group and only NFATc signaling pathway activated in SrCl2 group, suggesting that NFATc and Wnt/β-catenin signaling pathways played important roles in osteogenesis enhancement induced by Sr-SBG. To conform the above conclusion, cyclosporin A (CSA) was applied to inhibit NFATc signaling pathway. It was found that the enhanced osteogenic differentiation of mMSCs induced by Sr-SBG was partially abrogated and the activated Wnt/β-catenin signaling pathway was also inhibited in part. However, the effects of SBG on proliferation and osteogenesis of mMSCs were unimpaired, yet the effects of SrCl2 were greatly suppressed. Taken together, these results indicated that strontium activated NFATc signaling pathway and silicate activated Wnt/β-catenin signaling pathway might synergistically mediated the enhanced osteogenesis induced by Sr-SBG.
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Affiliation(s)
- Wen Zhang
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou, 510631, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Deqiu Huang
- College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Fujian Zhao
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Wendong Gao
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Luyao Sun
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Xian Li
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Xiaofeng Chen
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
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47
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Li P, Jia Z, Wang Q, Tang P, Wang M, Wang K, Fang J, Zhao C, Ren F, Ge X, Lu X. A resilient and flexible chitosan/silk cryogel incorporated Ag/Sr co-doped nanoscale hydroxyapatite for osteoinductivity and antibacterial properties. J Mater Chem B 2018; 6:7427-7438. [DOI: 10.1039/c8tb01672k] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A resilient and flexible chitosan/silk cryogel incorporated Ag and Sr co-doped hydroxyapatite exhibits good mechanical, antibacterial and osteoinductive properties.
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Affiliation(s)
- Pengfei Li
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
| | - Zhanrong Jia
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
| | - Qun Wang
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
| | - Pengfei Tang
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
| | - Menghao Wang
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Genome Research Center for Biomaterials, Sichuan University
- Chengdu
- China
| | - Ju Fang
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen
- Guangdong
- China
| | - Cancan Zhao
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen
- Guangdong
- China
| | - Fuzeng Ren
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen
- Guangdong
- China
| | - Xiang Ge
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University
- Tianjin
- China
| | - Xiong Lu
- Key Lab of Advanced Technologies of Materials
- Ministry of Education
- School of Materials Science and Engineering, Southwest Jiaotong University
- Chengdu
- China
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Li J, Yang L, Guo X, Cui W, Yang S, Wang J, Qu Y, Shao Z, Xu S. Osteogenesis effects of strontium-substituted hydroxyapatite coatings on true bone ceramic surfaces in vitro and in vivo. Biomed Mater 2017; 13:015018. [PMID: 28862155 DOI: 10.1088/1748-605x/aa89af] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To develop bioactive bone graft materials that can induce rapid bone regeneration, a novel biomaterial was synthesized by coating true bone ceramic (TBC) substrates with strontium-substituted nano-hydroxyapatites (SrHA) (Sr concentrations of 0%, 10%, 40%, 100%) through a sol-gel dip-coating approach. All coated TBC scaffolds retained the inherent natural trabecular structure, porosity, compressive strength and simultaneously possessed a micro/nanotopography SrHA layer on the substrate surface. The dimension of the deposited crystal increased and the density of the deposited apatite particles became sparse with increasing Sr content, but a unique HA crystalline phase was observed under all conditions. The modified TBC scaffolds significantly enhanced the adhesion, proliferation, and osteogenic differentiation of MC3T3-E1 osteoblasts in vitro. Particularly, the Sr10-TBC group (10 mol% Sr2+ in apatite coating) revealed the highest osteogenic efficacy over the other groups. Three-dimensional CT imaging and histological evaluations on a bilateral critical-sized rabbit radial defect model for 12 weeks showed significant bone formation in the Sr10-TBC implants. The new bone area ratios of the Sr10-TBC group were significantly higher than that of the TBC group. Additionally, Sr10-TBC implants showed faster degradability compared with raw TBC implants during the 12 weeks of implantation. The results indicate that TBC modification with 10% SrHA coating stimulated osteogenesis and could be a promising biomaterial for future bone defect regeneration.
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Affiliation(s)
- Jingfeng Li
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan 430071, People's Republic of China
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Zhong Z, Ma J. Fabrication, characterization, and in vitro study of zinc substituted hydroxyapatite/silk fibroin composite coatings on titanium for biomedical applications. J Biomater Appl 2017; 32:399-409. [PMID: 28747081 DOI: 10.1177/0885328217723501] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Zinc substituted hydroxyapatite/silk fibroin composite coatings were deposited on titanium substrates at room temperature by electrophoretic deposition. Microscopic characterization of the synthesized composite nanoparticles revealed that the particle size ranged 50-200 nm, which increased a little after zinc substitution. The obtained coatings maintained the phase of hydroxyapatite and they could induce fast apatite formation in simulated body fluid, indicating high bone activity. The cell culturing results showed that the biomimetic hydroxyapatite coatings could regulate adhesion, spreading, and proliferation of osteoblastic cells. Furthermore, the biological behavior of the zinc substituted hydroxyapatite coatings was found to be better than the bare titanium without coatings and hydroxyapatite coatings without zinc, increasing MC3T1-E1 cell differentiation in alkaline phosphatase expression.
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Affiliation(s)
- Zhenyu Zhong
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Ma
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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Preparation of Hydroxyapatite/Tannic Acid Coating to Enhance the Corrosion Resistance and Cytocompatibility of AZ31 Magnesium Alloys. COATINGS 2017. [DOI: 10.3390/coatings7070105] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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