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Atkinson I, Seciu-Grama AM, Petrescu S, Culita D, Mocioiu OC, Voicescu M, Mitran RA, Lincu D, Prelipcean AM, Craciunescu O. Cerium-Containing Mesoporous Bioactive Glasses (MBGs)-Derived Scaffolds with Drug Delivery Capability for Potential Tissue Engineering Applications. Pharmaceutics 2022; 14:pharmaceutics14061169. [PMID: 35745741 PMCID: PMC9230133 DOI: 10.3390/pharmaceutics14061169] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/22/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Finding innovative solutions to improve the lives of people affected by trauma, bone disease, or aging continues to be a challenge worldwide. Tissue engineering is the most rapidly growing area in the domain of biomaterials. Cerium-containing MBG-derived biomaterials scaffolds were synthesized using polymethyl methacrylate (PMMA) as a sacrificial template. The obtained scaffolds were characterized by X-ray powder diffraction (XRPD), infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The Ce4+/Ce3+ ratio in the scaffolds was estimated. In vitro testing revealed good cytocompatibility of the investigated scaffolds in mouse fibroblast cell line (NCTC clone L929). The results obtained regarding bioactivity, antibacterial activity, and controlled drug delivery functions recommend these scaffolds as potential candidates for bone tissue engineering applications.
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Affiliation(s)
- Irina Atkinson
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
- Correspondence: (I.A.); (A.M.S.-G.); (S.P.)
| | - Ana Maria Seciu-Grama
- National Institute of Research and Development for Biological Sciences, 296, Spl. Independentei, 060031 Bucharest, Romania; (A.-M.P.); (O.C.)
- Correspondence: (I.A.); (A.M.S.-G.); (S.P.)
| | - Simona Petrescu
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
- Correspondence: (I.A.); (A.M.S.-G.); (S.P.)
| | - Daniela Culita
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
| | - Oana Catalina Mocioiu
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
| | - Mariana Voicescu
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
| | - Raul-Augustin Mitran
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
| | - Daniel Lincu
- “Ilie Murgulescu” Institute of the Physical Chemistry of the Romanian Academy, 202, Spl. Independentei, 060021 Bucharest, Romania; (D.C.); (O.C.M.); (M.V.); (R.-A.M.); (D.L.)
| | - Ana-Maria Prelipcean
- National Institute of Research and Development for Biological Sciences, 296, Spl. Independentei, 060031 Bucharest, Romania; (A.-M.P.); (O.C.)
| | - Oana Craciunescu
- National Institute of Research and Development for Biological Sciences, 296, Spl. Independentei, 060031 Bucharest, Romania; (A.-M.P.); (O.C.)
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Effect of Ce-doped bioactive glass/collagen/chitosan nanocomposite scaffolds on the cell morphology and proliferation of rabbit’s bone marrow mesenchymal stem cells-derived osteogenic cells. J Genet Eng Biotechnol 2022; 20:33. [PMID: 35192077 PMCID: PMC8864049 DOI: 10.1186/s43141-022-00302-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 01/15/2022] [Indexed: 12/17/2022]
Abstract
Background Cerium-containing materials have wide applications in the biomedical field, because of the mimetic catalytic activities of cerium. The study aims to deeply estimate the biocompatibility of different scaffolds based on Ce-doped nanobioactive glass, collagen, and chitosan using the first passage of rabbit bone marrow mesenchymal stem cells (BM-MSCs) directed to osteogenic lineage by direct and indirect approach. One percentage of glass filler was used (30 wt. %) in the scaffold, while the percentage of CeO2 in the glass was ranged from 0 to 10 mol. %. Cytotoxicity was evaluated by monitoring of cell morphological changes and reduction in cell proliferation activity of BMMSCs maintained under osteogenic condition using proliferation assays, MTT assay for the direct contact of cells/scaffolds twice in a week, trypan blue and hemocytometer cell counting for indirect contact of cells/scaffolds extracts at day 7. Cell behaviors growth, morphology characteristics were monitored daily under a microscope and cell counting were conducted after 1 week of the incubation of the cells with the extracts of the four composite scaffolds in the osteogenic medium at the end of the week. Results Showed that at 24 h after direct contact with composite scaffold, all scaffolds showed proliferation of cells > 50% and increased in cell density on day 7. The scaffold of the highest percentage of CeO2 in bioactive glass nanoparticles (sample CL/CH/C10) showed the lowest inhibition of cell proliferation (< 25%) at day 7. Moreover, the indirect cell viability test showed that all extracts from the four composite scaffolds did not demonstrate a toxic effect on the cells (inhibition value < 25%). Conclusion The addition of CeO2 to the glass composition improved the biocompatibility of the composite scaffold for the proliferation of rabbit bone marrow mesenchymal stem cells directed to osteogenic lineage. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-022-00302-x.
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Enhanced corrosion resistance, antibacterial properties, and biocompatibility by hierarchical hydroxyapatite/ciprofloxacin-calcium phosphate coating on nitrided NiTi alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111524. [PMID: 33255077 DOI: 10.1016/j.msec.2020.111524] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 01/19/2023]
Abstract
Multi-functional hierarchical coatings are deposited on the nitrided NiTi alloy. The nitrided layer is first deposited by nitrogen plasma immersion ion implantation and a middle layer containing porous hydroxyapatite and ciprofloxacin (Cip) is produced before the top calcium phosphate coating is deposited by the sol-gel method. The thicknesses of the coating and nitrided intermediate layer are about 1.54 μm and 160 nm, respectively and Cip penetrates to a depth of about 530 nm. Calcium phosphate reduces surface defects resulting in a surface roughness of 17 ± 2 nm compared to 34 ± 5 nm of the porous hydroxyapatite coating. The corrosion resistance is improved due to reduced defects and localized corrosion as manifested by the decrease in the Ni2+ release rate by 11.6% from 0.0198 to 0.0175 mg L-1 cm-2. The bacterial resistance against E. coli is also improved by about 88 times on account of Cip release and good biocompatibility is confirmed by proliferation of MC3T3 cells. This multi-functional hierarchical coating has large potential in orthopedic and dental applications.
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Elaboration and Biocompatibility of an Eggshell-Derived Hydroxyapatite Material Modified with Si/PLGA for Bone Regeneration in Dentistry. Int J Dent 2019; 2019:5949232. [PMID: 31885588 PMCID: PMC6915137 DOI: 10.1155/2019/5949232] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/07/2019] [Accepted: 11/04/2019] [Indexed: 11/18/2022] Open
Abstract
Hydroxyapatite (HAp) is the most commonly used biomaterial in modern bone regeneration studies because of its chemical similarity to bone, biocompatibility with different polymers, osteoconductivity, low cost, and lack of immune response. However, to overcome the disadvantages of HAp, which include fragility and low mechanical strength, current studies typically focus on property modification through the addition of other materials. Objective. To develop and evaluate the biocompatibility of a HAp material extracted from eggshells and modified with silicon (Si) and poly(lactic-co-glycolic) acid (PLGA). Materials and Methods. An in vitro experimental study in which a HAp material prepared from eggshells was synthesized by wet chemical and conventional chemical precipitation. Subsequently, this material was reinforced with Si/PLGA using the freezing/lyophilization method, and then osteoblast cells were seeded on the experimental material (HAp/Si/PLGA). To analyse the biocompatibility of this composite material, scanning electron microscopy (SEM) and fluorescence confocal microscopy (FCM) techniques were used. PLGA, bovine bone/PLGA (BB/PLGA), and HAp/PLGA were used as controls. Results. A cellular viability of 96% was observed for the experimental HAp/Si/PLGA material as well as for the PLGA. The viability for the BB/PLGA material was 90%, and the viability for the HAp/PLGA was 86%. Cell adhesion was observed on the exterior surface of all materials. However, a continuous monolayer and the presence of filopodia were observed over both external and internal surface of the experimental materials. Conclusions. The HAp/Si/PLGA material is highly biocompatible with osteoblastic cells and can be considered promising for the construction of three-dimensional scaffolds for bone regeneration in dentistry.
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Rasskazova LA, Zhuk IV, Korotchenko NM, Brichkov AS, Chen YW, Paukshtis EA, Ivanov VK, Kurzina IA, Kozik VV. Synthesis of Magnesium- and Silicon-modified Hydroxyapatites by Microwave-Assisted Method. Sci Rep 2019; 9:14836. [PMID: 31619688 PMCID: PMC6795999 DOI: 10.1038/s41598-019-50777-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 09/19/2019] [Indexed: 01/31/2023] Open
Abstract
Nanopowders of hydroxyapatite (HA), modified by magnesium (MgHA) and by silicon (SiHA) were obtained by liquid-phase microwave synthesis method. X-ray diffraction and IR spectroscopy results showed that Mg2+ and SiO44- ions were present in the synthesized products both as secondary phases and as part of the HA phase. Whitlockite was found in the magnesium-modified HA (MgHA) and larnite was found in the silicon-modified HA (SiHA); ion substitution for both materials resulted in solid solutions. In the synthesized samples of modified HA, the increase of particle size of powders was in the order HA < SiHA < MgHA, which was calculated through data specific surface area and measured pycnometric density of the powders. The Lewis acid sites (Ca2+, Mg2+, Si4+) were present using spectral probes on the surface of the samples of HA, MgHA, and SiHA, and the acidity of these sites decreased in the order SiHA > MgHA > HA. The rates of calcium phosphate layer deposition on the surface of these materials at 37 °C in the model simulated body fluid solution showed similar dependence.
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Affiliation(s)
| | - Ilya V Zhuk
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
| | | | - Anton S Brichkov
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia.
| | - Yu-Wen Chen
- Department of Chemical Engineering, National Central University, Jhongli, 32001, Taiwan.
| | - Evgeniy A Paukshtis
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
| | - Vladimir K Ivanov
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
| | - Irina A Kurzina
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
| | - Vladimir V Kozik
- National Research Tomsk State University, 36 Lenina Avenue, Tomsk, 634050, Russia
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Janson O, Sörensen JH, Strømme M, Engqvist H, Procter P, Welch K. Evaluation of an alkali-treated and hydroxyapatite-coated orthopedic implant loaded with tobramycin. J Biomater Appl 2019; 34:699-720. [PMID: 31408413 DOI: 10.1177/0885328219867968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Oscar Janson
- 1 Division of Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | | | - Maria Strømme
- 3 Division of Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Håkan Engqvist
- 1 Division of Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Philip Procter
- 1 Division of Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Ken Welch
- 3 Division of Nanotechnology and Functional Materials, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
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Green synthesis of bacterial cellulose/bioactive glass nanocomposites: Effect of glass nanoparticles on cellulose yield, biocompatibility and antimicrobial activity. Int J Biol Macromol 2019; 138:975-985. [PMID: 31351958 DOI: 10.1016/j.ijbiomac.2019.07.144] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/14/2019] [Accepted: 07/24/2019] [Indexed: 01/25/2023]
Abstract
Despite the advantages of bacterial cellulose (BC) over traditional cellulose, its low yield and little bioactivity makes a limitation to be used in an industrial scale. This paper was mainly dual aimed to increase the BC yield using a nanobioactive glass (NBG), and in situ synthesize BC/NBG bioactive nanocomposites by a novel and simple green method. Accordingly, the composites were prepared via in situ fermentation approach by incorporation of NBG particles into BC producing culture medium. The effect of NBG addition on the production process of cellulose, biocompatibility, bioactivity and antimicrobial activity were investigated. The results showed that NBG was enhanced and increased the BC yield and this has been achieved by maintaining these NBG on the pH value of the culture medium during the fermentation period. Moreover, it was effectively improved biocompatibility and antimicrobial properties of BC. This study evidenced that BC/NBG composite can be expected to be widely applied in biomedical industries such as bone regeneration and wound healing with the unique of being not harmful to humans.
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Farag MM, Al-Rashidy ZM, Ahmed MM. In vitro drug release behavior of Ce-doped nano-bioactive glass carriers under oxidative stress. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:18. [PMID: 30671708 DOI: 10.1007/s10856-019-6220-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Ce-containing bioactive glasses are known to decrease reactive oxygen activities inside the body. That is because of their excellent catalytic activities which come from the fast interchange of Ce3+/Ce4+ oxidation states. This research was mainly aimed at preparing new Ce-doped nano-bioactive glasses based on 60SiO2-(10-x)B2O3-25CaO-5P2O5-xCeO2, in mole% (x = 0 and 5 mol%) as multifunctional bone fillings. Moreover, the glasses were used as a delivery system for ciprofloxacin to intensely solve the bone infection complications. Nevertheless, there were no previous works studied of the nature immersing solution effect on the drug release behavior from Ce-doped nano-bioactive glass carriers. Therefore, phosphate-free and phosphate-containing buffer solutions with/without superoxide species (H2O2) were used to investigate the efficacy of this drug delivery system in different environment. The results showed that Ce addition enhanced the formation of apatite layer and cell viability. Moreover, the percentage of released drug was apparently affected by the glass composition and nature of soaking fluid, specifically, in the media containing superoxide species (H2O2). In conclusion, the prepared Ce-doped glass nanoparticles illustrated multifunctional bone filling material, but when it intended to be utilized as a drug delivery system, the nature of surrounding medium have to be taken into consideration.
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Affiliation(s)
- Mohammad M Farag
- Glass Research Department, National Research Centre, 33 El-Behooth Str., Dokki, Cairo, 12622, Egypt.
| | - Zainab M Al-Rashidy
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33 El-Behooth Str., Dokki, Cairo, 12622, Egypt
| | - Manar M Ahmed
- Glass Research Department, National Research Centre, 33 El-Behooth Str., Dokki, Cairo, 12622, Egypt
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Hydrothermal Fabrication of Highly Porous Titanium Bio-Scaffold with a Load-Bearable Property. MATERIALS 2017; 10:ma10070726. [PMID: 28773090 PMCID: PMC5551769 DOI: 10.3390/ma10070726] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/12/2017] [Accepted: 06/28/2017] [Indexed: 11/17/2022]
Abstract
Porous titanium (P_Ti) is considered as an effective material for bone scaffold to achieve a stiffness reduction. Herein, biomimetic (bio-)scaffolds were made of sintered P_Ti, which used NaCl as the space holder and had it removed via the hydrothermal method. X-ray diffraction results showed that the subsequent sintering temperature of 1000 °C was the optimized temperature for preparing P_Ti. The compressive strength of P_Ti was measured using a compression test, which revealed an excellent load-bearing ability of above 70 MPa for that with an addition of 50 wt % NaCl (P_Ti_50). The nano-hardness of P_Ti, tested upon their solid surface, was presumably consistent with the density of pores vis-à-vis the addition of NaCl. Overall, a load-bearable P_Ti with a highly porous structure (e.g., P_Ti_50 with a porosity of 43.91% and a pore size around 340 μm) and considerable compressive strength could be obtained through the current process. Cell proliferation (MTS) and lactate dehydrogenase (LDH) assays showed that all P_Ti samples exhibited high cell affinity and low cell mortality, indicating good biocompatibility. Among them, P_Ti_50 showed relatively good in-cell morphology and viability, and is thus promising as a load-bearable bio-scaffold.
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Gao J, Wang M, Shi C, Wang L, Wang D, Zhu Y. Synthesis of trace element Si and Sr codoping hydroxyapatite with non-cytotoxicity and enhanced cell proliferation and differentiation. Biol Trace Elem Res 2016; 174:208-217. [PMID: 27075548 DOI: 10.1007/s12011-016-0697-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 03/31/2016] [Indexed: 10/22/2022]
Abstract
The main inorganic minerals in natural bones are non-stoichiometric hydroxyapatite (HA, Ca10[PO4]6[OH]2) doped with various trace elements, which may possess important biochemical effects. To investigate the functions of Sr and Si elements in human hard tissues, non-doped HA, trace Si doped HA, Si and Sr codoped HA with the concentration of natural bones are synthesized by hydrothermal method in this study. The samples are characterized by powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM). The biological activities are evaluated via cytotoxicity study, adhesion and proliferation of osteoblast measurement, and alkaline phosphatase (ALP) assay. All the synthesized materials are HA phase, which have hierarchical structures with oriented HA nanorods assembled into the platy particles. These materials are non-cytotoxic against L929 cells line even at 400 μg/ml powder suspension. The results clearly indicate that the proliferation of L929 cells increases with trace elements doping from trace Si-HA to Si + Sr-HA. The adhesion and proliferation of osteoblast measurement illustrates that proliferation of osteoblasts advances about 1.3 times for Si-HA and about 1.8 times for Si + Sr-HA compared with undoped HA. In general, Si-HA with trace Si element shows enhanced cell differentiation, and Si + Sr-HA dual-doped with Si and Sr elements presents increased biological activity compared with Si-HA.
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Affiliation(s)
- Jianyong Gao
- Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, 200082, China
| | - Ming Wang
- Key Lab of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Chao Shi
- Key Lab of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Liping Wang
- Key Lab of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Dalin Wang
- Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, 200082, China
| | - Yingchun Zhu
- Key Lab of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China.
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Surmenev RA, Surmeneva MA, Ivanova AA. Significance of calcium phosphate coatings for the enhancement of new bone osteogenesis--a review. Acta Biomater 2014; 10:557-79. [PMID: 24211734 DOI: 10.1016/j.actbio.2013.10.036] [Citation(s) in RCA: 317] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/25/2013] [Accepted: 10/29/2013] [Indexed: 12/15/2022]
Abstract
A systematic analysis of results available from in vitro, in vivo and clinical trials on the effects of biocompatible calcium phosphate (CaP) coatings is presented. An overview of the most frequently used methods to prepare CaP-based coatings was conducted. Dense, homogeneous, highly adherent and biocompatible CaP or hybrid organic/inorganic CaP coatings with tailored properties can be deposited. It has been demonstrated that CaP coatings have a significant effect on the bone regeneration process. In vitro experiments using different cells (e.g. SaOS-2, human mesenchymal stem cells and osteoblast-like cells) have revealed that CaP coatings enhance cellular adhesion, proliferation and differentiation to promote bone regeneration. However, in vivo, the exact mechanism of osteogenesis in response to CaP coatings is unclear; indeed, there are conflicting reports of the effectiveness of CaP coatings, with results ranging from highly effective to no significant or even negative effects. This review therefore highlights progress in CaP coatings for orthopaedic implants and discusses the future research and use of these devices. Currently, an exciting area of research is in bioactive hybrid composite CaP-based coatings containing both inorganic (CaP coating) and organic (collagen, bone morphogenetic proteins, arginylglycylaspartic acid etc.) components with the aim of promoting tissue ingrowth and vascularization. Further investigations are necessary to reveal the relative influences of implant design, surgical procedure, and coating characteristics (thickness, structure, topography, porosity, wettability etc.) on the long-term clinical effects of hybrid CaP coatings. In addition to commercially available plasma spraying, other effective routes for the fabrication of hybrid CaP coatings for clinical use still need to be determined and current progress is discussed.
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Affiliation(s)
- Roman A Surmenev
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia; Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, 70569 Stuttgart, Germany.
| | - Maria A Surmeneva
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Anna A Ivanova
- Department of Theoretical and Experimental Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
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MUNIR GILLIAN, HUANG JIE, EDIRISINGHE MOHAN, NANGREJO RAFIQUE, BONFIELD WILLIAM. ELECTROHYDRODYNAMIC PROCESSING OF CALCIUM PHOSPHATES: COATING AND PATTERNING FOR MEDICAL IMPLANTS. ACTA ACUST UNITED AC 2012. [DOI: 10.1142/s1793984411000426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Hydroxyapatite (HA)-coated metallic prostheses, which combine the osteoconductivity of HA and high strength of metallic alloys, have been increasingly the choice of joint replacement prostheses by surgeons as the general population lives longer. Surface modification of metallic implant surfaces is one of the key focal points to implantation technology. In addition to material chemistry, surface topography has been found to positively impact cellular response and is able to enhance the life time of the implant. Recently, a new technique, template-assisted electrohydrodynamic atomization (TAEA) spraying, developed using the principles of electrohydrodynamic atomization spraying, which is an electrically driven jet-based deposition method, is of considerable interest in surface topography formation. The process offers the attractive advantages of compatibility with micro-fabrication technology and versatility in pattern specification for advanced implant designs. This technology incorporates nanosized calcium phosphate to mimic the size and chemical composition of bone mineral in a micrometer-dimension pattern configuration to guide cellular responses. In vitro studies showed that both pillar and track nano Silicon-substituted HA (SiHA) patterns were able to encourage the attachment and growth of osteoblast cells, the track patterns provided the favourite surface for the initial cell attachment while a fast cell proliferation rate was found on the pillar pattern from day 1 to day 5 in comparison with that of a SiHA-coated surface. The alignment of actin cytoskeleton of osteoblast cells matched the orientation of the entire cell. The shear peel strength of the patterned interlocking nano-HA coating was found to be at least an order of magnitude higher than the conventional HA coating. Therefore, TAEA offers great potential for producing new coatings with a tailored surface topography, on both the micro- and nano-scale in a more cost effective way to enhance the performance of medical implants.
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Affiliation(s)
- GILLIAN MUNIR
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - JIE HUANG
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - MOHAN EDIRISINGHE
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - RAFIQUE NANGREJO
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - WILLIAM BONFIELD
- Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, United Kingdom
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Lei-Lei Z, He-Jun L, Jin-Hua L, Ke-Zhi L, Sheng C, Xue-Ni Z, Zi-Bo H. Surface characteristic and cell response of CVD SiC coating for carbon/carbon composites used for hip arthroplasty. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.5021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhang Lei-Lei
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - Li He-Jun
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - Lu Jin-Hua
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - Li Ke-Zhi
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - Cao Sheng
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - Zhao Xue-Ni
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
| | - He Zi-Bo
- State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072 China
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Surface microstructure and cell compatibility of calcium silicate and calcium phosphate composite coatings on Mg–Zn–Mn–Ca alloys for biomedical application. Colloids Surf B Biointerfaces 2011; 83:96-102. [DOI: 10.1016/j.colsurfb.2010.11.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Revised: 11/01/2010] [Accepted: 11/01/2010] [Indexed: 11/19/2022]
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