101
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In Vitro Corrosion Properties of Mg Matrix In Situ Composites Fabricated by Spark Plasma Sintering. METALS 2017. [DOI: 10.3390/met7090358] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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102
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Biodegradation of Mg-14Li alloy in simulated body fluid: A proof-of-concept study. Bioact Mater 2017; 3:110-117. [PMID: 29744448 PMCID: PMC5935760 DOI: 10.1016/j.bioactmat.2017.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 08/23/2017] [Accepted: 08/29/2017] [Indexed: 11/30/2022] Open
Abstract
High corrosion kinetics and localised corrosion progress are the primary concerns arising from the clinical implementation of magnesium (Mg) based implantable devices. In this study, a binary Mg-lithium (Li) alloy consisting a record high Li content of 14% (in weight) was employed as model material aiming to yield homogenous and slow corrosion behaviour in a simulated body fluid, i.e. minimum essential medium (MEM), in comparison to that of generic Mg alloy AZ31 and biocompatible Mg-0.5Zn-0.5Ca counterparts. Scanning electron microscopy examination reveals single-phase microstructural characteristics of Mg-14Li (β-Li), whilst the presence of insoluble phases, cathodic to α-Mg matrix, in AZ31 and Mg-0.5Zn-0.5Ca. Though slight differences exist in the corrosion kinetics of all the specimens over a short-term time scale (no longer than 60 min), as indicated by potentiodynamic polarisation and electrochemical impedance spectroscopy, profound variations are apparent in terms of immersion tests, i.e. mass loss and hydrogen evolution measurements (up to 7 days). Cross-sectional micrographs unveil severe pitting corrosion in AZ31 and Mg-0.5Zn-0.5Ca, but not the case for Mg-14Li. X-ray diffraction patterns and X-ray photoelectron spectroscopy confirm that a compact film (25 μm in thickness) consisting of lithium carbonate (Li2CO3) and calcium hydroxide was generated on the surface of Mg-14Li in MEM, which contributes greatly to its low corrosion rate. It is proposed therefore that the single-phase structure and formation of protective and defect-free Li2CO3 film give rise to the controlled and homogenous corrosion behaviour of Mg-14Li in MEM, providing new insights for the exploration of biodegradable Mg materials. Mg-14Li (wt.%) binary alloy was studied as a potential degradable material. Single phase of β-Li existed in Mg-14Li. Homogenous corrosion morphology was observed in Mg-14Li in MEM. Corrosion rate of Mg-14Li is lower than that of Mg-0.5Za-0.5Ca and AZ31.
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103
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Ren Y, Babaie E, Lin B, Bhaduri SB. Microwave-assisted magnesium phosphate coating on the AZ31 magnesium alloy. Biomed Mater 2017; 12:045026. [DOI: 10.1088/1748-605x/aa78c0] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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104
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Bai C, Li J, Ta W, Li B, Han Y. In vivo Study on the Corrosion Behavior of Magnesium Alloy Surface Treated with Micro-arc Oxidation and Hydrothermal Deposition. Orthop Surg 2017; 9:296-303. [PMID: 28960817 PMCID: PMC6584445 DOI: 10.1111/os.12342] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 05/04/2017] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE To study the corrosion behavior of magnesium alloy surface treated with micro-arc oxidation and hydrothermal deposition in living animals. METHODS A magnesium oxide (MgO) layer was prepared on Mg alloy using micro-arc oxidation technology, and then a composite coating composed of magnesium hydroxide, hydroxyapatite, and MgO was coated on the MgO layer using the hydrothermal deposition method for 2 h and 24 h. Male 3-month-old white New Zealand rabbits (n = 48) weighting 2200-2300 g, were divided into four groups randomly. The prepared Mg alloy samples with composite coatings were implanted into the femoral medullary cavity of rabbits. For the Mg group, bare Mg samples without any treatment were implanted; for the MgO group, bare Mg samples undergoing MAO treatment were implanted; for the HT2h group, samples of the MgO group undergoing hydrothermal treatment (HT) for 2 h were implanted; and for the HT24h group, samples of group MgO undergoing HT for 24 h were implanted. Then the in vivo corrosion behaviors of implants were evaluated by X-ray observation, micro-CT analysis and serum Mg2+ examination. RESULTS The X-ray showed that samples implanted in animals were decreased as time went by. The micro-CT showed that on the fourth week, the residual volume percentages (RVP) of samples of the Mg, MgO, HT2h, and HT24h groups were 72.81% ± 2.10%, 71.68% ± 1.49%, 81.14% ± 1.54%, and 82.04% ± 0.89%, respectively; on the eighth week, the RVP of four groups were 29.45% ± 1.06%, 41.82% ± 1.13%, 53.92% ± 0.37%, and 62.53% ± 2.06%, respectively; while on the 12th week, RVP were 8.45% ± 0.49%, 9.97% ± 0.75%, 37.09% ± 0.89%, 46.71% ± 1.87%. The RVP of the HT2h group and the HT24h group were higher than for the Mg group and the MgO group for all three time points (P < 0.05); the RVP for HT24h was higher than for HT2h at 8 and 12 weeks, and the differences were significant, indicating that the degradation of Mg alloy slowed down after composite coating. In addition, the composite-coated Mg alloy by 24-h hydrothermal treatment exhibited a slower degradation than that treated by 2 h. Serum Mg2+ concentration results showed that on the second week, the Mg2+ concentrations of the Mg, MgO, HT2h, and HT24h groups were 2.24 ± 0.10 mmol/L, 2.12 ± 0.07 mmol/L, 2.06 ± 0.11 mmol/L, and 2.15 ± 0.12 mmol/L, respectively. On the fourth week, these concentrations were 1.99 ± 0.33 mmol/L, 2.18 ± 0.06 mmol/L, 2.17 ± 0.09 mmol/L, and 2.13 ± 0.14 mmol/L, respectively. On the eighth week, the concentrations were 2.22 ± 0.09 mmol/L, 2.20 ± 0.17 mmol/L, 2.06 ± 0.11 mmol/L, and 2.14 ± 0.07 mmol/L, respectively. On the 12th week, the concentrations were 2.18 ± 0.04 mmol/L, 2.20 ± 0.08 mmol/L, 2.09 ± 0.02 mmol/L, and 2.16 ± 0.11 mmol/L. CONCLUSION The combination of micro-arc oxidation and hydrothermal deposition can greatly improve the anti-corrosion behavior of Mg alloy, and Mg alloy coated with this composite coating is a promising biomaterial with a satisfactory degradation rate.
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Affiliation(s)
- Chuan‐yi Bai
- Department of Orthopaedic SurgeryThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Jian‐wu Li
- Department of Orthopaedic SurgeryArmed Police Corps Hospital of ShaanxiXi’anChina
| | - Wan‐bao Ta
- Department of Orthopaedic SurgeryThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Bo Li
- Department of Orthopaedic SurgeryThe Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’anChina
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105
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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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106
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Jiang Y, Wang B, Jia Z, Lu X, Fang L, Wang K, Ren F. Polydopamine mediated assembly of hydroxyapatite nanoparticles and bone morphogenetic protein-2 on magnesium alloys for enhanced corrosion resistance and bone regeneration. J Biomed Mater Res A 2017; 105:2750-2761. [PMID: 28608421 DOI: 10.1002/jbm.a.36138] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 06/01/2017] [Indexed: 01/22/2023]
Abstract
Magnesium alloys have the great potential to be used as orthopedic implants due to their biodegradability and mechanical resemblance to human cortical bone. However, the rapid degradation in physiological environment with the evolution of hydrogen gas release hinders their clinical applications. In this study, we developed a novel functional and biocompatible coating strategy through polydopamine mediated assembly of hydroxyapatite nanoparticles and growth factor, bone morphogenetic protein-2 (BMP-2), onto the surface of AZ31 Mg alloys. Such functional coating has strong bonding with the substrate and can increase surface hydrophilicity of magnesium alloys. In vitro electrochemical corrosion and hydrogen evolution tests demonstrate that the coating can significantly enhance the corrosion resistance and therefore slow down the degradation of AZ31 Mg alloys. In vitro cell culture reveals that immobilization of HA nanoparticles and BMP-2 can obviously promote cell adhesion and proliferation. Furthermore, in vivo implantation tests indicate that with the synergistic effects of HA nanoparticles and BMP-2, the coating does not cause obvious inflammatory response and can significantly reduce the biodegradation rate of the magnesium alloys and induce the new bone formation adjacent to the implants. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2750-2761, 2017.
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Affiliation(s)
- Yanan Jiang
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, China.,Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Bi Wang
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, China
| | - Zhanrong Jia
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Xiong Lu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Liming Fang
- Department of Polymer Science and Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Fuzeng Ren
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong, 518055, China
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107
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Wang B, Zhao L, Zhu W, Fang L, Ren F. Mussel-inspired nano-multilayered coating on magnesium alloys for enhanced corrosion resistance and antibacterial property. Colloids Surf B Biointerfaces 2017. [PMID: 28645044 DOI: 10.1016/j.colsurfb.2017.06.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Magnesium alloys are promising candidates for load-bearing orthopedic implants due to their biodegradability and mechanical resemblance to natural bone tissue. However, the high degradation rate and the risk of implant-associated infections pose grand challenges for their clinical applications. Herein, we developed a nano-multilayered coating strategy through polydopamine and chitosan assisted layer-by-layer assembly of osteoinductive carbonated apatite and antibacterial sliver nanoparticles on the surface of AZ31 magnesium alloys. The fabricated nano-multilayered coating can not only obviously enhance the corrosion resistance but also significantly increase the antibacterial activity and demonstrate better biocompatility of magnesium alloys.
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Affiliation(s)
- Bi Wang
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
| | - Liang Zhao
- Department of Polymer Science and Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Weiwei Zhu
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
| | - Liming Fang
- Department of Polymer Science and Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fuzeng Ren
- Department of Materials Science and Engineering, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China.
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108
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Dou J, Chen Y, Chi Y, Li H, Gu G, Chen C. Preparation and characterization of a calcium-phosphate-silicon coating on a Mg-Zn-Ca alloy via two-step micro-arc oxidation. Phys Chem Chem Phys 2017; 19:15110-15119. [PMID: 28561125 DOI: 10.1039/c7cp02672b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Magnesium alloys are the most promising implant materials due to their excellent biodegradability. However, their high degradation rate limits their practical application. In this study, we produced a calcium-phosphate (Ca-P) coating and a calcium-phosphate-silicon (Ca-P-Si) coating via one-step and two-step micro-arc oxidation processes, respectively. The microstructure and chemical composition of the MAO coatings were characterized using SEM, XRD and EDS. The degradation behaviors of the MAO coatings and the substrate were investigated using electrochemical techniques and immersion tests in simulated body fluid (SBF). The results show that the silicate was successfully incorporated into the Ca-P coating in the second MAO step, and this also increased the thickness of the coating. The Ca-P-Si coatings remarkably reduced the corrosion rate of the Mg alloy and Ca-P coating during 18 days of immersion in SBF. In addition, the bone-like apatite layer on the sample surface demonstrated the good biomineralization ability of the Ca-P-Si coating. Potentiodynamic polarization results showed that the MAO coating could clearly enhance the corrosion resistance of the Mg alloy. Moreover, we propose the growth mechanism of the MAO coating in the second step.
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Affiliation(s)
- Jinhe Dou
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jingshi Road # 17923, Ji'nan 250061, Shandong, P. R. China.
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109
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Surface Modification of Metallic Biomaterials for Better Tribological Properties: A Review. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-017-2624-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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110
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Babaie E, Lin B, Bhaduri SB. A new method to produce macroporous Mg-phosphate bone growth substitutes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:602-609. [DOI: 10.1016/j.msec.2017.02.111] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 12/05/2016] [Accepted: 02/21/2017] [Indexed: 12/01/2022]
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111
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Asri RIM, Harun WSW, Samykano M, Lah NAC, Ghani SAC, Tarlochan F, Raza MR. Corrosion and surface modification on biocompatible metals: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:1261-1274. [PMID: 28532004 DOI: 10.1016/j.msec.2017.04.102] [Citation(s) in RCA: 189] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 04/18/2017] [Indexed: 12/12/2022]
Abstract
Corrosion prevention in biomaterials has become crucial particularly to overcome inflammation and allergic reactions caused by the biomaterials' implants towards the human body. When these metal implants contacted with fluidic environments such as bloodstream and tissue of the body, most of them became mutually highly antagonistic and subsequently promotes corrosion. Biocompatible implants are typically made up of metallic, ceramic, composite and polymers. The present paper specifically focuses on biocompatible metals which favorably used as implants such as 316L stainless steel, cobalt-chromium-molybdenum, pure titanium and titanium-based alloys. This article also takes a close look at the effect of corrosion towards the implant and human body and the mechanism to improve it. Due to this corrosion delinquent, several surface modification techniques have been used to improve the corrosion behavior of biocompatible metals such as deposition of the coating, development of passivation oxide layer and ion beam surface modification. Apart from that, surface texturing methods such as plasma spraying, chemical etching, blasting, electropolishing, and laser treatment which used to improve corrosion behavior are also discussed in detail. Introduction of surface modifications to biocompatible metals is considered as a "best solution" so far to enhanced corrosion resistance performance; besides achieving superior biocompatibility and promoting osseointegration of biocompatible metals and alloys.
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Affiliation(s)
- R I M Asri
- Institute of Postgraduate Studies, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300 Kuantan, Pahang, Malaysia
| | - W S W Harun
- Green Research for Advanced Materials Laboratory, Human Engineering Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia.
| | - M Samykano
- Structural and Material Degradation Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
| | - N A C Lah
- Structural and Material Degradation Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
| | - S A C Ghani
- Green Research for Advanced Materials Laboratory, Human Engineering Group, Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
| | - F Tarlochan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar
| | - M R Raza
- Department of Mechanical Engineering, COMSATS Institute of Information Technology, Sahiwal 57000, Pakistan
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112
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Effect of Ca-P compound formed by hydrothermal treatment on biodegradation and biocompatibility of Mg-3Al-1Zn-1.5Ca alloy; in vitro and in vivo evaluation. Sci Rep 2017; 7:712. [PMID: 28386061 PMCID: PMC5428810 DOI: 10.1038/s41598-017-00656-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 03/07/2017] [Indexed: 11/17/2022] Open
Abstract
Chemical combinations of Ca-P produced via plasma electrolytic oxidation (PEO) and a hydrothermal treatment were fabricated to improve the initial corrosion resistance and biocompatibility of a biodegradable Mg-3Al-1Zn-1.5Ca alloy. For the formation of an amorphous calcium phosphate composite layer on the surface of a magnesium alloy, a PEO layer composed of MgO and Mg3(PO4)2 was formed by PEO in electrolytes containing preliminary phosphate ions. During the second stage, a thick and dense Ca layer was formed by Ca electrodeposition after PEO. Finally, a hydrothermal treatment was carried out for chemical incorporation of P ions in the PEO layer and Ca ions in the electrodeposition layer. The amorphous calcium phosphate composite layer formed by the hydrothermal treatment enhanced osteoblast activity and reduced H2O2 production, which is a known stress indicator for cells. As a result of co-culturing osteoblast cells and RAW 264.7 cells, the formation of amorphous calcium phosphate increased osteoblast cell differentiation and decreased osteoclast cell differentiation. Implanting the alloy, which had an amorphous calcium phosphate composite layer that had been added through hydrothermal treatment, in the tibia of rats led to a reduction in initial biodegradation and promoted new bone formation.
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113
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Cao L, Wang L, Fan L, Xiao W, Lin B, Xu Y, Liang J, Cao B. RGDC Peptide-Induced Biomimetic Calcium Phosphate Coating Formed on AZ31 Magnesium Alloy. MATERIALS 2017; 10:ma10040358. [PMID: 28772717 PMCID: PMC5506929 DOI: 10.3390/ma10040358] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/19/2017] [Accepted: 03/24/2017] [Indexed: 01/23/2023]
Abstract
Magnesium alloys as biodegradable metal implants have received a lot of interest in biomedical applications. However, magnesium alloys have extremely high corrosion rates a in physiological environment, which have limited their application in the orthopedic field. In this study, calcium phosphate compounds (Ca–P) coating was prepared by arginine–glycine–aspartic acid–cysteine (RGDC) peptide-induced mineralization in 1.5 simulated body fluid (SBF) to improve the corrosion resistance and biocompatibility of the AZ31 magnesium alloys. The adhesion of Ca–P coating to the AZ31 substrates was evaluated by a scratch test. Corrosion resistance and cytocompatibility of the Ca–P coating were investigated. The results showed that the RGDC could effectively promote the nucleation and crystallization of the Ca–P coating and the Ca–P coating had poor adhesion to the AZ31 substrates. The corrosion resistance and biocompatibility of the biomimetic Ca–P coating Mg alloys were greatly improved compared with that of the uncoated sample.
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Affiliation(s)
- Lin Cao
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Lina Wang
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Lingying Fan
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Wenjun Xiao
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Bingpeng Lin
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Yimeng Xu
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Jun Liang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Baocheng Cao
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
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114
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Zhang L, Pei J, Wang H, Shi Y, Niu J, Yuan F, Huang H, Zhang H, Yuan G. Facile Preparation of Poly(lactic acid)/Brushite Bilayer Coating on Biodegradable Magnesium Alloys with Multiple Functionalities for Orthopedic Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9437-9448. [PMID: 28244328 DOI: 10.1021/acsami.7b00209] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recently magnesium and its alloys have been proposed as a promising next generation orthopedic implant material, whereas the poor corrosion behavior, potential cytotoxicity, and the lack of efficient drug delivery system have limited its further clinical application, especially for the local treatment of infections or musculoskeletal disorders and diseases. In this study, we designed and developed a multifunctional bilayer composite coating of poly(lactic acid)/brushite with high interfacial bonding strength on a Mg-Nd-Zn-Zr alloy, aiming to improve the biocorrosion resistance and biocompatibility of the magnesium-based substrate, as well as to further incorporate the biofunctionality of localized drug delivery. The composite coating consisted of an inner layer of poly(lactic acid) serving as a drug carrier and an outer layer composed of brushite generated through chemical solution deposition, where a facile pretreatment of UV irradiation was applied to the poly(lactic acid) coating to facilitate the heterogeneous nucleation of brushite. The in vitro degradation results of electrochemical measurements and immersion tests indicated a considerable reduction of magnesium degradation provided the composite coating. A systematic investigation of cellular response with cell viability, adhesion, and ALP assays confirmed the coated Mg alloy induced no toxicity to MC3T3-E1 osteoblastic cells but rather fostered cell attachment and proliferation and promoted osteogenic differentiation, revealing excellent biosafety and biocompatibility and enhanced osteoinductive potential. An in vitro drug release profile of paclitaxel from the composite coating was monitored with UV-vis spectroscopy, showing an alleviated initial burst release and a sustained and controlled release feature of the drug-loaded composite coating. These findings suggested that the bilayer poly(lactic acid)/brushite coating provided effective protection for Mg alloy, greatly enhanced cytocompatibility and bioactivity, and, moreover, possessed local drug delivery capability; hence magnesium alloy with poly(lactic acid)/brushite coating presents great potential in orthopedic clinical applications, especially for localized bone therapy.
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Affiliation(s)
- Lei Zhang
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Jia Pei
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Haodong Wang
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Yongjuan Shi
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Jialin Niu
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Feng Yuan
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Hua Huang
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Hua Zhang
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
| | - Guangyin Yuan
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University , Shanghai 200240, China
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Huang CH, Chen RS, Yoshimura M. Direct bioactive ceramics coating via reactive Growing Integration Layer method on α-Ti-alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1216-1223. [PMID: 28482488 DOI: 10.1016/j.msec.2017.03.182] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/08/2017] [Accepted: 03/21/2017] [Indexed: 11/30/2022]
Abstract
This paper demonstrates Ca-P-rich bio-ceramic and hydroxyapatite (HA) coatings formed directly from the solution of calcium acetate (CA) and sodium dihydrogen phosphate (SDP) on α-Ti-alloy substrates by Growing Integration Layer (GIL) technology under DC power supply. The composition of the α-Ti-alloy was Ti7Cu5Sn. The GIL coated films formed in 30min time with different voltages applied had porous and rough ceramic surfaces. They consisted mostly of various oxides like rutile, anatase, and calcium phosphates (including hydroxyapatite) that reduce corrosion rate and increase biocompatibility. An important feature was the reduction of Cu at the surfaces of the alloys. Furthermore, along with the applied voltage, the content of HA, the size of micro-pores, and hardness all increased, while the number of micro-pores in the ceramic membrane got reduced. The potential, current and resistance of corrosion were identified by potentiodynamic (PD) polarization and electrochemical impedance spectroscopy (EIS). The higher applied voltage improved the surface quality, HA formation rate, and the anti-corrosion behavior. Consequently, the samples - prepared at 350V and surface current density of 3A/cm2 - possessed the most compact HA films, and also had the best corrosion resistance - in 0.9wt% NaCl solution at 37±1°C.
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Affiliation(s)
- Chi-Huang Huang
- Promotion Center for Global Materials Research (PCGMR), Department of Material Science and Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Engineering Science, National Cheng-Kung University, No.1, University Road, Tainan City, Taiwan
| | - Rong-Sheng Chen
- Department of Engineering Science, National Cheng-Kung University, No.1, University Road, Tainan City, Taiwan
| | - Masahiro Yoshimura
- Promotion Center for Global Materials Research (PCGMR), Department of Material Science and Engineering, National Cheng Kung University, Tainan, Taiwan.
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116
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Xia K, Pan H, Wang T, Ma S, Niu J, Xiang Z, Song Y, Yang H, Tang X, Lu W. Effect of Ca/P ratio on the structural and corrosion properties of biomimetic Ca P coatings on ZK60 magnesium alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 72:676-681. [DOI: 10.1016/j.msec.2016.11.132] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/24/2016] [Accepted: 11/28/2016] [Indexed: 10/20/2022]
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117
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Sun Q, Yang Y, Luo W, Zhao J, Zhou Y. The Influence of Electrolytic Concentration on the Electrochemical Deposition of Calcium Phosphate Coating on a Direct Laser Metal Forming Surface. Int J Anal Chem 2017; 2017:8610858. [PMID: 28250771 PMCID: PMC5303588 DOI: 10.1155/2017/8610858] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/31/2016] [Accepted: 01/10/2017] [Indexed: 02/05/2023] Open
Abstract
A calcium phosphate (CaP) coating on titanium surface enhances its biocompatibility, thus facilitating osteoconduction and osteoinduction with the inorganic phase of the human bone. Electrochemical deposition has been suggested as an effective means of fabricating CaP coatings on porous surface. The purpose of this study was to develop CaP coatings on a direct laser metal forming implant using electrochemical deposition and to investigate the effect of electrolytic concentration on the coating's morphology and structure by X-ray diffraction, scanning electron microscopy, water contact angle analysis, and Fourier transform infrared spectroscopy. In group 10-2, coatings were rich in dicalcium phosphate, characterized to be thick, layered, and disordered plates. In contrast, in groups 10-3 and 10-4, the relatively thin and well-ordered coatings predominantly consisted of granular hydroxyapatite. Further, the hydrophilicity and cell affinity were improved as electrolytic concentration increased. In particular, the cells cultured in group 10-3 appeared to have spindle morphology with thick pseudopodia on CaP coatings; these spindles and pseudopodia strongly adhered to the rough and porous surface. By analyzing and evaluating the surface properties, we provided further knowledge on the electrolytic concentration effect, which will be critical for improving CaP coated Ti implants in the future.
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Affiliation(s)
- Qianyue Sun
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou 510140, China
| | - Yuhui Yang
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130033, China
| | - Wenjing Luo
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China
| | - Jinghui Zhao
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China
| | - Yanmin Zhou
- Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin Province 130021, China
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118
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Hiromoto S, Yamazaki T. Micromorphological effect of calcium phosphate coating on compatibility of magnesium alloy with osteoblast. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2017; 18:96-109. [PMID: 28179963 PMCID: PMC5259964 DOI: 10.1080/14686996.2016.1266238] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/24/2016] [Accepted: 11/25/2016] [Indexed: 05/15/2023]
Abstract
Octacalcium phosphate (OCP) and hydroxyapatite (HAp) coatings were developed to control the degradation speed and to improve the biocompatibility of biodegradable magnesium alloys. Osteoblast MG-63 was cultured directly on OCP- and HAp-coated Mg-3Al-1Zn (wt%, AZ31) alloy (OCP- and HAp-AZ31) to evaluate cell compatibility. Cell proliferation was remarkably improved with OCP and HAp coatings which reduced the corrosion and prevented the H2O2 generation on Mg alloy substrate. OCP-AZ31 showed sparse distribution of living cell colonies and dead cells. HAp-AZ31 showed dense and homogeneous distribution of living cells, with dead cells localized over and around corrosion pits, some of which were formed underneath the coating. These results demonstrated that cells were dead due to changes in the local environment, and it is necessary to evaluate the local biocompatibility of magnesium alloys. Cell density on HAp-AZ31 was higher than that on OCP-AZ31 although there was not a significant difference in the amount of Mg ions released in medium between OCP- and HAp-AZ31. The outer layer of OCP and HAp coatings consisted of plate-like crystal with a thickness of around 0.1 μm and rod-like crystals with a diameter of around 0.1 μm, respectively, which grew from a continuous inner layer. Osteoblasts formed focal contacts on the tips of plate-like OCP and rod-like HAp crystals, with heights of 2-5 μm. The spacing between OCP tips of 0.8-1.1 μm was wider than that between HAp tips of 0.2-0.3 μm. These results demonstrated that cell proliferation depended on the micromorphology of the coatings which governed spacing of focal contacts. Consequently, HAp coating is suitable for improving cell compatibility and bone-forming ability of the Mg alloy.
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Affiliation(s)
- Sachiko Hiromoto
- Corrosion Property Group, Research Center for Structural Materials, National Institute for Materials Science, Tsukuba, Japan
| | - Tomohiko Yamazaki
- Biosystem Control Group, Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan
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119
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Ibrahim H, Esfahani SN, Poorganji B, Dean D, Elahinia M. Resorbable bone fixation alloys, forming, and post-fabrication treatments. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:870-888. [DOI: 10.1016/j.msec.2016.09.069] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/31/2016] [Accepted: 09/28/2016] [Indexed: 12/13/2022]
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120
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Li X, Liu X, Wu S, Yeung KWK, Zheng Y, Chu PK. Design of magnesium alloys with controllable degradation for biomedical implants: From bulk to surface. Acta Biomater 2016; 45:2-30. [PMID: 27612959 DOI: 10.1016/j.actbio.2016.09.005] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 01/24/2023]
Abstract
The combination of high strength, light weight, and natural biodegradability renders magnesium (Mg)-based alloys promising in orthopedic implants and cardiovascular stents. Being metallic materials, Mg and Mg alloys made for scaffolds provide the necessary mechanical support for tissue healing and cell growth in the early stage, while natural degradation and reabsorption by surrounding tissues in the later stage make an unnecessarily follow-up removal surgery. However, uncontrolled degradation may collapse the scaffolds resulting in premature implant failure, and there has been much research in controlling the degradation rates of Mg alloys. This paper reviews recent progress in the design of novel Mg alloys, surface modification and corrosion mechanisms under different conditions, and describes the effects of the structure, composition, and surface conditions on the degradation behavior in vitro and in vivo. STATEMENT OF SIGNIFICANCE Owing to their unique mechanical properties, biodegradability, biocompatibility, Mg based biomaterials are becoming the most promising substitutes for tissue regeneration for impaired bone, vascular and other tissues because these scaffolds can provide not only ideal space for the growth and differentiation of seeded cells but also enough strength before the formation of normal tissues. The most important is that these scaffolds can be fully degraded after tissue regeneration, which can satisfy the increasing demand for better biomedical devices and functional tissue engineering biomaterials in the world. However, the rapid degradation rate of these scaffolds restricts the wide application in clinic. This paper reviews recent progress on how to control the degrdation rate based on the relevant corrosion mechanisms through the design of porous structure, phase structure, grains, and amorphous structure as well as surface modification, which will be beneficial to the better understanding and functional design of Mg-based scaffolds for wide clinical applications in tissue reconstruction in near futures.
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Affiliation(s)
- Xia Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Faculty of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Xiangmei Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Faculty of Materials Science & Engineering, Hubei University, Wuhan 430062, China.
| | - Shuilin Wu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Faculty of Materials Science & Engineering, Hubei University, Wuhan 430062, China.
| | - K W K Yeung
- Division of Spine Surgery, Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Paul K Chu
- Department of Physics & Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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121
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Surmeneva M, Nikityuk P, Hans M, Surmenev R. Deposition of Ultrathin Nano-Hydroxyapatite Films on Laser Micro-Textured Titanium Surfaces to Prepare a Multiscale Surface Topography for Improved Surface Wettability/Energy. MATERIALS 2016; 9:ma9110862. [PMID: 28773985 PMCID: PMC5457199 DOI: 10.3390/ma9110862] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/28/2016] [Accepted: 10/14/2016] [Indexed: 12/12/2022]
Abstract
The primary aim of this study was to analyse the correlation between topographical features and chemical composition with the changes in wettability and the surface free energy of microstructured titanium (Ti) surfaces. Periodic microscale structures on the surface of Ti substrates were fabricated via direct laser interference patterning (DLIP). Radio-frequency magnetron sputter deposition of ultrathin nanostructured hydroxyapatite (HA) films was used to form an additional nanoscale grain morphology on the microscale-structured Ti surfaces to generate multiscale surface structures. The surface characteristics were evaluated using atomic force microscopy and contact angle and surface free energy measurements. The structure and phase composition of the HA films were investigated using X-ray diffraction. The HA-coated periodic microscale structured Ti substrates exhibited a significantly lower water contact angle and a larger surface free energy compared with the uncoated Ti substrates. Control over the wettability and surface free energy was achieved using Ti substrates structured via the DLIP technique followed by the deposition of a nanostructured HA coating, which resulted in the changes in surface chemistry and the formation of multiscale surface topography on the nano- and microscale.
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Affiliation(s)
- Maria Surmeneva
- Department of Experimental Physics, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634029, Russia.
| | - Polina Nikityuk
- Department of Experimental Physics, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634029, Russia.
| | - Michael Hans
- Functional Materials, Materials Science Department, Saarland University, Saarbrücken 66123, Germany.
| | - Roman Surmenev
- Department of Experimental Physics, National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634029, Russia.
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122
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Chen W, Tian B, Lei Y, Ke QF, Zhu ZA, Guo YP. Hydroxyapatite coatings with oriented nanoplate and nanorod arrays: Fabrication, morphology, cytocompatibility and osteogenic differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:395-408. [DOI: 10.1016/j.msec.2016.04.106] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 03/28/2016] [Accepted: 04/27/2016] [Indexed: 11/30/2022]
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123
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Effect of phosphate additives on the microstructure, bioactivity, and degradability of microarc oxidation coatings on Mg-Zn-Ca-Mn alloy. Biointerphases 2016; 11:031006. [PMID: 27440396 DOI: 10.1116/1.4959127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Calcium phosphate coatings were prepared on the surface of self-designed Mg-Zn-Ca-Mn alloy using microarc oxidization technology. To characterize the microstructures, cross-section morphologies, and compositions of the coatings, the authors used scanning electron microscopy equipped with an energy-disperse spectrometer, x-ray diffraction, and Fourier transform infrared spectroscopy. Potentiodynamic polarization in the simulated body fluid (SBF) was used to evaluate the corrosion behaviors of the samples. An SBF immersion test was used to evaluate the coating bioactivity and degradability. After the immersion tests, some bonelike apatite formed on the coating surfaces indicate that bioactivity of the coatings is excellent. The coating prepared in electrolyte containing (NaPO3)6 had slower degradation rate after immersion test for 21 days.
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124
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Controllable degradation of medical magnesium by electrodeposited composite films of mussel adhesive protein (Mefp-1) and chitosan. J Colloid Interface Sci 2016; 478:246-55. [DOI: 10.1016/j.jcis.2016.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/29/2016] [Accepted: 06/01/2016] [Indexed: 11/20/2022]
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125
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Influence of biodegradable polymer coatings on corrosion, cytocompatibility and cell functionality of Mg-2.0Zn-0.98Mn magnesium alloy. Colloids Surf B Biointerfaces 2016; 144:284-292. [DOI: 10.1016/j.colsurfb.2016.04.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/25/2016] [Accepted: 04/09/2016] [Indexed: 11/18/2022]
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126
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Shangguan Y, Wan P, Tan L, Fan X, Qin L, Yang K. Investigation of the inner corrosion layer formed in pulse electrodeposition coating on Mg-Sr alloy and corresponding degradation behavior. J Colloid Interface Sci 2016; 481:1-12. [PMID: 27450886 DOI: 10.1016/j.jcis.2016.07.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022]
Abstract
Magnesium-based metals are considered as promising biodegradable orthopedic implant materials due to their potentials of enhancing bone healing and reconstruction, and in vivo absorbable characteristic without second operation for removal. However, the rapid corrosion has limited their clinical applications. Ca-P coating by electrodeposition has been supposed to be effective to control the degradation rate and enhance the bioactivity. In this work, a brushite coating was fabricated on the Mg-Sr alloy by pulse electrodeposition (PED) to evaluate its efficacy for orthopedic application. Interestingly, an inner corrosion layer was observed between the PED coating and the alloy substrate. Meanwhile the results of in vitro immersion and electrochemical tests showed that the corrosion resistance of the coated alloy was undermined in comparison with the uncoated alloy. It was deduced that the existence of this corrosion layer was attributed to the worse corrosion performance of the alloy. The mechanism on formation of the inner corrosion layer and its influence on consequent degradation were analyzed. It can be concluded that the electrodeposition coating should be not suitable for those magnesium alloys with poor corrosion resistance such as the Mg-Sr alloy. More importantly, it should be noted that the process of coating formation combined with the nature of substrate alloy is important to evaluate the efficacy of coating for biodegradable Mg-based implants application.
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Affiliation(s)
- Yongming Shangguan
- Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Peng Wan
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China; Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region.
| | - Lili Tan
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Xinmin Fan
- Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ling Qin
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.
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127
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Comparison study of different coatings on degradation performance and cell response of Mg-Sr alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:95-107. [PMID: 27612693 DOI: 10.1016/j.msec.2016.06.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/13/2016] [Accepted: 06/22/2016] [Indexed: 12/26/2022]
Abstract
To solve the problem of rapid degradation for magnesium-based implants, surface modification especially coating method is widely studied and showed the great potential for clinical application. However, as concerned to the further application and medical translation for biodegradable magnesium alloys, there are still lack of data and comparisons among different coatings on their degradation and biological properties. This work studied three commonly used coatings on Mg-Sr alloy, including micro-arc oxidation coating, electrodeposition coating and chemical conversion coating, and compared these coatings for requirements of favorable degradation and biological performances, how each of these coating systems has performed. Finally the mechanism for the discrepancy between these coatings is proposed. The results indicate that the micro-arc oxidation coating on Mg-Sr alloy exhibited the best corrosion resistance and cell response among these coatings, and is proved to be more suitable for the orthopedic application.
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128
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Sun W, Zhang G, Tan L, Yang K, Ai H. The fluoride coated AZ31B magnesium alloy improves corrosion resistance and stimulates bone formation in rabbit model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:506-11. [DOI: 10.1016/j.msec.2016.03.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 02/25/2016] [Accepted: 03/06/2016] [Indexed: 10/22/2022]
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129
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Wagener V, Virtanen S. Protective layer formation on magnesium in cell culture medium. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:341-51. [DOI: 10.1016/j.msec.2016.03.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/18/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
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130
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Rahim MI, Tavares A, Evertz F, Kieke M, Seitz JM, Eifler R, Weizbauer A, Willbold E, Jürgen Maier H, Glasmacher B, Behrens P, Hauser H, Mueller PP. Phosphate conversion coating reduces the degradation rate and suppresses side effects of metallic magnesium implants in an animal model. J Biomed Mater Res B Appl Biomater 2016; 105:1622-1635. [DOI: 10.1002/jbm.b.33704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 02/05/2016] [Accepted: 04/21/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Muhammad Imran Rahim
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Ana Tavares
- Institute for Multiphase Processes, Leibniz University of Hannover; Appelstrasse 11 30167 Hannover Germany
| | - Florian Evertz
- Institute for Multiphase Processes, Leibniz University of Hannover; Appelstrasse 11 30167 Hannover Germany
| | - Marc Kieke
- Institute for Inorganic Chemistry, Leibniz University of Hannover; Callinstrasse 9 30167 Hannover Germany
| | - Jan-Marten Seitz
- Institute of Materials Science, Leibniz University of Hannover; An der Universität 2 30823 Garbsen Germany
- Department of Materials Science and Engineering; Michigan Technological University; 1400 Townsend Dr. Houghton Michigan 49931
| | - Rainer Eifler
- Institute of Materials Science, Leibniz University of Hannover; An der Universität 2 30823 Garbsen Germany
| | - Andreas Weizbauer
- CrossBIT, Center for Biocompatibility and Implant-Immunology, Department of Orthopedic Surgery, Hannover Medical School; Feodor-Lynen-Strasse 31 30625 Hannover Germany
- Laboratory for Biomechanics and Biomaterials, Department of Orthopedic Surgery; Hannover Medical School; Anna-von-Borries-Strasse 1-7 30625 Hannover Germany
| | - Elmar Willbold
- CrossBIT, Center for Biocompatibility and Implant-Immunology, Department of Orthopedic Surgery, Hannover Medical School; Feodor-Lynen-Strasse 31 30625 Hannover Germany
- Laboratory for Biomechanics and Biomaterials, Department of Orthopedic Surgery; Hannover Medical School; Anna-von-Borries-Strasse 1-7 30625 Hannover Germany
| | - Hans Jürgen Maier
- Institute of Materials Science, Leibniz University of Hannover; An der Universität 2 30823 Garbsen Germany
| | - Birgit Glasmacher
- Institute for Multiphase Processes, Leibniz University of Hannover; Appelstrasse 11 30167 Hannover Germany
| | - Peter Behrens
- Institute for Inorganic Chemistry, Leibniz University of Hannover; Callinstrasse 9 30167 Hannover Germany
| | - Hansjörg Hauser
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Peter P. Mueller
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 38124 Braunschweig Germany
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131
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Su Y, Li D, Su Y, Lu C, Niu L, Lian J, Li G. Improvement of the Biodegradation Property and Biomineralization Ability of Magnesium–Hydroxyapatite Composites with Dicalcium Phosphate Dihydrate and Hydroxyapatite Coatings. ACS Biomater Sci Eng 2016; 2:818-828. [DOI: 10.1021/acsbiomaterials.6b00013] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yingchao Su
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
| | - Dayong Li
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
| | - Yichang Su
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
| | - Chengjia Lu
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
| | - Liyuan Niu
- Department of Material Engineer, Zhejiang Industry & Trade Vocational College,717 Fudong Street, Wenzhou 325003, China
| | - Jianshe Lian
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
| | - Guangyu Li
- Key
Laboratory of Automobile Materials, Ministry of Education, College
of Materials Science and Engineering, Jilin University, 5988 Renmin
Street, Changchun 130025, China
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132
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Rahim MI, Rohde M, Rais B, Seitz JM, Mueller PP. Susceptibility of metallic magnesium implants to bacterial biofilm infections. J Biomed Mater Res A 2016; 104:1489-99. [DOI: 10.1002/jbm.a.35680] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/29/2016] [Accepted: 02/05/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Muhammad Imran Rahim
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 Braunschweig 38124 Germany
| | - Manfred Rohde
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 Braunschweig 38124 Germany
| | - Bushra Rais
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 Braunschweig 38124 Germany
| | - Jan-Marten Seitz
- Institute of Materials Science, Leibniz University of Hannover; An Der Universität 2 Garbsen 30823 Germany
- Department of Materials Science and Engineering; Michigan Technological University; 1400 Townsend Dr Houghton Michigan 49931
| | - Peter P. Mueller
- Helmholtz Centre for Infection Research; Inhoffenstrasse 7 Braunschweig 38124 Germany
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133
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Rueda LM, Nieves C, Hernández Barrios CA, Coy AE, Viejo F. Design of TEOS-GPTMS sol-gel coatings on rare-earth magnesium alloys employed in the manufacture of orthopaedic implants. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/687/1/012013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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134
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Ratna Sunil B, Sampath Kumar T, Chakkingal U, Nandakumar V, Doble M, Devi Prasad V, Raghunath M. In vitro and in vivo studies of biodegradable fine grained AZ31 magnesium alloy produced by equal channel angular pressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:356-367. [DOI: 10.1016/j.msec.2015.10.028] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 09/11/2015] [Accepted: 10/09/2015] [Indexed: 10/22/2022]
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135
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Dou J, Gu G, Chen C, Pan Y. Characterization and biodegradation behavior of micro-arc oxidation coatings formed on Mg–Zn–Ca alloys in two different electrolytes. RSC Adv 2016. [DOI: 10.1039/c6ra22666c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic illustrations of degradation mechanism of the porous MAO coating on Mg alloys in SBF.
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Affiliation(s)
- Jinhe Dou
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Shandong University
- Jinan 250061
| | - Guochao Gu
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Shandong University
- Jinan 250061
| | - Chuanzhong Chen
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Shandong University
- Jinan 250061
| | - Yaokun Pan
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials
- Ministry of Education
- School of Materials Science and Engineering
- Shandong University
- Jinan 250061
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136
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Srinivasan A, Shin KS, Rajendran N. Influence of bicarbonate concentration on the conversion layer formation onto AZ31 magnesium alloy and its electrochemical corrosion behaviour in simulated body fluid. RSC Adv 2016. [DOI: 10.1039/c6ra08478h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The electrochemical corrosion behaviour of a magnesium carbonate conversion layer-coated AZ31 magnesium alloy was evaluated in simulated body fluid (SBF) solution.
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Affiliation(s)
- Arthanari Srinivasan
- Department of Chemistry
- College of Engineering Guindy Campus
- Anna University
- Chennai-600 025
- India
| | - Kwang Seon Shin
- Magnesium Technology Innovation Center
- School of Materials Science and Engineering
- Seoul National University
- Seoul-151-744
- Republic of Korea
| | - Nallaiyan Rajendran
- Department of Chemistry
- College of Engineering Guindy Campus
- Anna University
- Chennai-600 025
- India
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137
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Liu B, Xiao GY, Jiang CC, Zheng YZ, Wang LL, Lu YP. Formation initiation and structural changes of phosphate conversion coating on titanium induced by galvanic coupling and Fe2+ ions. RSC Adv 2016. [DOI: 10.1039/c6ra16847g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A scholzite coating was precipitated on Ti by a galvanically coupled approach and addition of iron ions in the bath.
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Affiliation(s)
- Bing Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
| | - Gui-yong Xiao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
| | - Cong-cong Jiang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
| | - Yong-zhen Zheng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
| | - Ling-ling Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
| | - Yu-peng Lu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials
- Ministry of Education
- Shandong University
- Ji'nan 250061
- China
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138
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Li B, Han Y, Li M. Enhanced osteoblast differentiation and osseointegration of a bio-inspired HA nanorod patterned pore-sealed MgO bilayer coating on magnesium. J Mater Chem B 2016; 4:683-693. [DOI: 10.1039/c5tb02101d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The osteogenetic capability of Mg was significantly enhanced by a bio-inspired hydroxyapatite (HA) nanorod patterned pore-sealed MgO bilayer coating.
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Affiliation(s)
- Bo Li
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Mei Li
- State Key Laboratory for Mechanical Behavior of Materials
- Xi'an Jiaotong University
- Xi'an 710049
- China
- Hospital of Orthopedics
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139
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Nakamura M, Oyane A. Physicochemical fabrication of calcium phosphate-based thin layers and nanospheres using laser processing in solutions. J Mater Chem B 2016; 4:6289-6301. [DOI: 10.1039/c6tb01362g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We achieved simple and rapid fabrication of calcium phosphate (CaP)-based thin layers and nanospheres by laser processing in supersaturated solutions.
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Affiliation(s)
- Maki Nakamura
- Nanomaterials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Central 5
- Tsukuba
- Japan
| | - Ayako Oyane
- Nanomaterials Research Institute
- National Institute of Advanced Industrial Science and Technology (AIST)
- Central 5
- Tsukuba
- Japan
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140
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Anodisation and Sol–Gel Coatings as Surface Modification to Promote Osseointegration in Metallic Prosthesis. MODERN ASPECTS OF ELECTROCHEMISTRY 2016. [DOI: 10.1007/978-3-319-31849-3_3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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141
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Huan Z, Xu C, Ma B, Zhou J, Chang J. Substantial enhancement of corrosion resistance and bioactivity of magnesium by incorporating calcium silicate particles. RSC Adv 2016. [DOI: 10.1039/c5ra27302a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We discovered that calcium silicate is an effective reinforcement phase to improve the corrosion resistance, mechanical strength and biological performance of Mg or Mg-based alloys to overcome their major drawbacks for orthopedic implant applications.
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Affiliation(s)
- Zhiguang Huan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Chen Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Bing Ma
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Jie Zhou
- Department of Biomechanical Engineering
- Delft University of Technology
- 2628 CD Delft
- The Netherlands
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
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142
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Kieke M, Feyerabend F, Lemaitre J, Behrens P, Willumeit-Römer R. Degradation rates and products of pure magnesium exposed to different aqueous media under physiological conditions. ACTA ACUST UNITED AC 2016. [DOI: 10.1515/bnm-2015-0020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractAs magnesium and many of its alloys are a promising class of degradable implant materials, a thorough understanding of their degradation under physiological conditions is a key challenge in the field of biomaterial science. In order to increase the predictive power of in vitro studies, it is necessary to imitate the in vivo conditions, track the decomposition process and identify the products that form during the degradation pathway. In this in vitro study, slices of pure magnesium were exposed to Hank’s Balanced Salt Solution (HBSS), Dulbecco’s Modified Eagle Medium (DMEM) and simulated body fluid (SBF), respectively, under cell culture conditions, which included CO
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143
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A review of hydroxyapatite-based coating techniques: Sol-gel and electrochemical depositions on biocompatible metals. J Mech Behav Biomed Mater 2015; 57:95-108. [PMID: 26707027 DOI: 10.1016/j.jmbbm.2015.11.031] [Citation(s) in RCA: 222] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/26/2015] [Accepted: 11/30/2015] [Indexed: 12/22/2022]
Abstract
New promising techniques for depositing biocompatible hydroxyapatite-based coatings on biocompatible metal substrates for biomedical applications have continuously been exploited for more than two decades. Currently, various experimental deposition processes have been employed. In this review, the two most frequently used deposition processes will be discussed: a sol-gel dip coating and an electrochemical deposition. This study deliberates the surface morphologies and chemical composition, mechanical performance and biological responses of sol-gel dip coating as well as the electrochemical deposition for two different sample conditions, with and without coating. The review shows that sol-gel dip coatings and electrochemical deposition were able to obtain the uniform and homogeneous coating thickness and high adherent biocompatible coatings even in complex shapes. It has been accepted that both coating techniques improve bone strength and initial osseointegration rate. The main advantages and limitations of those techniques of hydroxyapatite-based coatings are presented. Furthermore, the most significant challenges and critical issues are also highlighted.
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144
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Zhang F, Cai S, Xu G, Shen S, Li Y, Zhang M, Wu X. Corrosion behavior of mesoporous bioglass-ceramic coated magnesium alloy under applied forces. J Mech Behav Biomed Mater 2015; 56:146-155. [PMID: 26703229 DOI: 10.1016/j.jmbbm.2015.11.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 11/18/2015] [Accepted: 11/28/2015] [Indexed: 01/28/2023]
Abstract
In order to research the corrosion behavior of bioglass-ceramic coated magnesium alloys under applied forces, mesoporous 45S5 bioactive glass-ceramic (45S5 MBGC) coatings were successfully prepared on AZ31 substrates using a sol-gel dip-coating technique followed by a heat treatment at the temperature of 400°C. In this work, corrosion behavior of the coated samples under applied forces was characterized by electrochemical tests and immersion tests in simulated body fluid. Results showed that the glass-ceramic coatings lost the protective effects to the magnesium substrate in a short time when the applied compressive stress was greater than 25MPa, and no crystallized apatite was formed on the surface due to the high Mg(2+) releasing and the peeling off of the coatings. Whereas, under low applied forces, apatite deposition and crystallization on the coating surface repaired cracks to some extent, thus improving the corrosion resistance of the coated magnesium during the long-term immersion period.
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Affiliation(s)
- Feiyang Zhang
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, People׳s Republic of China
| | - Shu Cai
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, People׳s Republic of China.
| | - Guohua Xu
- Shanghai Changzheng Hospital, Shanghai 200003, People׳s Republic of China.
| | - Sibo Shen
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, People׳s Republic of China
| | - Yan Li
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, People׳s Republic of China
| | - Min Zhang
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, People׳s Republic of China
| | - Xiaodong Wu
- Shanghai Changzheng Hospital, Shanghai 200003, People׳s Republic of China
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145
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Kaabi Falahieh Asl S, Nemeth S, Tan MJ. Novel biodegradable calcium phosphate/polymer composite coating with adjustable mechanical properties formed by hydrothermal process for corrosion protection of magnesium substrate. J Biomed Mater Res B Appl Biomater 2015; 104:1643-1657. [PMID: 26340081 DOI: 10.1002/jbm.b.33505] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 07/31/2015] [Accepted: 08/03/2015] [Indexed: 11/08/2022]
Abstract
Ceramic type coatings on metallic implants, such as calcium phosphate (Ca-P), are generally stiff and brittle, potentially leading to the early failure of the bone-implant interface. To reduce material brittleness, polyacrylic acid and carboxymethyl cellulose were used in this study to deposit two types of novel Ca-P/polymer composite coatings on AZ31 magnesium alloy using a one-step hydrothermal process. X-ray diffraction and scanning electron microscopy showed that the deposited Ca-P crystal phase and morphology could be controlled by the type and concentration of polymer used. Incorporation of polymer in the Ca-P coatings reduced the coating elastic modulus bringing it close to that of magnesium and that of human bone. Nanoindentation test results revealed significantly decreased cracking tendency with the incorporation of polymer in the Ca-P coating. Apart from mechanical improvements, the protective composite layers had also enhanced the corrosion resistance of the substrate by a factor of 1000 which is sufficient for implant application. Cell proliferation studies indicated that the composite coatings induced better cell attachment compared with the purely inorganic Ca-P coating, confirming that the obtained composite materials could be promising candidates for surface protection of magnesium for implant application with the multiple functions of corrosion protection, interfacial stress reduction, and cell attachment/cell growth promotion. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1643-1657, 2016.
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Affiliation(s)
- Sara Kaabi Falahieh Asl
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 639708, Singapore. .,Singapore Institute Of Manufacturing Technology, 638075, Singapore.
| | - Sandor Nemeth
- Singapore Institute Of Manufacturing Technology, 638075, Singapore
| | - Ming Jen Tan
- School of Mechanical & Aerospace Engineering, Nanyang Technological University, 639708, Singapore
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146
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A Biodegradable Coating Based on Self-Assembled Hybrid Nanoparticles to Control the Performance of Magnesium. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500214] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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147
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Biodegradable Materials for Bone Repair and Tissue Engineering Applications. MATERIALS 2015; 8:5744-5794. [PMID: 28793533 PMCID: PMC5512653 DOI: 10.3390/ma8095273] [Citation(s) in RCA: 354] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/09/2015] [Accepted: 08/24/2015] [Indexed: 12/21/2022]
Abstract
This review discusses and summarizes the recent developments and advances in the use of biodegradable materials for bone repair purposes. The choice between using degradable and non-degradable devices for orthopedic and maxillofacial applications must be carefully weighed. Traditional biodegradable devices for osteosynthesis have been successful in low or mild load bearing applications. However, continuing research and recent developments in the field of material science has resulted in development of biomaterials with improved strength and mechanical properties. For this purpose, biodegradable materials, including polymers, ceramics and magnesium alloys have attracted much attention for osteologic repair and applications. The next generation of biodegradable materials would benefit from recent knowledge gained regarding cell material interactions, with better control of interfacing between the material and the surrounding bone tissue. The next generations of biodegradable materials for bone repair and regeneration applications require better control of interfacing between the material and the surrounding bone tissue. Also, the mechanical properties and degradation/resorption profiles of these materials require further improvement to broaden their use and achieve better clinical results.
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148
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149
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Iskandar ME, Aslani A, Tian Q, Liu H. Nanostructured calcium phosphate coatings on magnesium alloys: characterization and cytocompatibility with mesenchymal stem cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:189. [PMID: 25917827 PMCID: PMC5057181 DOI: 10.1007/s10856-015-5512-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 03/30/2015] [Indexed: 06/04/2023]
Abstract
This article reports the deposition and characterization of nanostructured calcium phosphate (nCaP) on magnesium-yttrium alloy substrates and their cytocompatibility with bone marrow derived mesenchymal stem cells (BMSCs). The nCaP coatings were deposited on magnesium and magnesium-yttrium alloy substrates using proprietary transonic particle acceleration process for the dual purposes of modulating substrate degradation and BMSC adhesion. Surface morphology and feature size were analyzed using scanning electron microscopy and quantitative image analysis tools. Surface elemental compositions and phases were analyzed using energy dispersive X-ray spectroscopy and X-ray diffraction, respectively. The deposited nCaP coatings showed a homogeneous particulate surface with the dominant feature size of 200-500 nm in the long axis and 100-300 nm in the short axis, and a Ca/P atomic ratio of 1.5-1.6. Hydroxyapatite was the major phase identified in the nCaP coatings. The modulatory effects of nCaP coatings on the sample degradation and BMSC behaviors were dependent on the substrate composition and surface conditions. The direct culture of BMSCs in vitro indicated that multiple factors, including surface composition and topography, and the degradation-induced changes in media composition, influenced cell adhesion directly on the sample surface, and indirect adhesion surrounding the sample in the same culture. The alkaline pH, the indicator of Mg degradation, played a role in BMSC adhesion and morphology, but not the sole factor. Additional studies are necessary to elucidate BMSC responses to each contributing factor.
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Affiliation(s)
- Maria Emil Iskandar
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, MSE 227, Riverside, CA 92521, USA
| | - Arash Aslani
- N2 Biomedical LLC, One Patriots Park, Bedford, MA 01730, USA
| | - Qiaomu Tian
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, MSE 227, Riverside, CA 92521, USA
| | - Huinan Liu
- Department of Bioengineering, University of California at Riverside, 900 University Avenue, MSE 227, Riverside, CA 92521, USA
- Materials Science and Engineering, University of California at Riverside, 900 University Avenue, MSE 227, Riverside, CA 92521, USA
- Stem Cell Center, University of California at Riverside, 900 University Avenue, MSE 227, Riverside, CA 92521, USA
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150
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Gao Y, Yerokhin A, Matthews A. Mechanical behaviour of cp-magnesium with duplex hydroxyapatite and PEO coatings. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:190-200. [DOI: 10.1016/j.msec.2014.12.081] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 11/30/2014] [Accepted: 12/07/2014] [Indexed: 11/28/2022]
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