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Daavari M, Atapour M, Mohedano M, Matykina E, Arrabal R, Nesic D. Biological Performance of Duplex PEO + CNT/PCL Coating on AZ31B Mg Alloy for Orthopedic and Dental Applications. J Funct Biomater 2023; 14:475. [PMID: 37754889 PMCID: PMC10532417 DOI: 10.3390/jfb14090475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
To regulate the degradation rate and improve the surface biocompatibility of the AZ31B magnesium alloy, three different coating systems were produced via plasma electrolytic oxidation (PEO): simple PEO, PEO incorporating multi-walled carbon nanotubes (PEO + CNT), and a duplex coating that included a polycaprolactone top layer (PEO + CNT/PCL). Surfaces were characterized by chemical content, roughness, topography, and wettability. Biological properties analysis included cell metabolism and adhesion. PEO ± CNT resulted in an augmented surface roughness compared with the base material (BM), while PCL deposition produced the smoothest surface. All surfaces had a contact angle below 90°. The exposure of gFib-TERT and bmMSC to culture media collected after 3 or 24 h did not affect their metabolism. A decrease in metabolic activity of 9% and 14% for bmMSC and of 14% and 29% for gFib-TERT was observed after 3 and 7 days, respectively. All cells died after 7 days of exposure to BM and after 15 days of exposure to coated surfaces. Saos-2 and gFib-TERT adhered poorly to BM, in contrast to bmMSC. All cells on PEO anchored into the pores with filopodia, exhibited tiny adhesion protrusions on PEO + CNT, and presented a web-like spreading with lamellipodia on PEO + CNT/PCL. The smooth and homogenous surface of the duplex PEO + CNT/PCL coating decreased magnesium corrosion and led to better biological functionality.
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Affiliation(s)
- Morteza Daavari
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Masoud Atapour
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Marta Mohedano
- Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain; (M.M.); (E.M.); (R.A.)
| | - Endzhe Matykina
- Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain; (M.M.); (E.M.); (R.A.)
| | - Raul Arrabal
- Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain; (M.M.); (E.M.); (R.A.)
| | - Dobrila Nesic
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, CH-1211 Geneva, Switzerland
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A Superior Corrosion Protection of Mg Alloy via Smart Nontoxic Hybrid Inhibitor-Containing Coatings. Molecules 2023; 28:molecules28062538. [PMID: 36985514 PMCID: PMC10056050 DOI: 10.3390/molecules28062538] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
The increase of corrosion resistance of magnesium and its alloys by forming the smart self-healing hybrid coatings was achieved in this work in two steps. In the first step, using the plasma electrolytic oxidation (PEO) treatment, a ceramic-like bioactive coating was synthesized on the surface of biodegradable MA8 magnesium alloy. During the second step, the formed porous PEO layer was impregnated with a corrosion inhibitor 8-hydroxyquinoline (8-HQ) and bioresorbable polymer polycaprolactone (PCL) in different variations to enhance the protective properties of the coating. The composition, anticorrosion, and antifriction properties of the formed coatings were studied. 8-HQ allows controlling the rate of material degradation due to the self-healing effect of the smart coating. PCL treatment of the inhibitor-containing layer significantly improves the corrosion and wear resistance and retains an inhibitor in the pores of the PEO layer. It was revealed that the corrosion inhibitor incorporation method (including the number of steps, impregnation, and the type of solvent) significantly matters to the self-healing mechanism. The hybrid coatings obtained by a 1-step treatment in a dichloromethane solution containing 6 wt.% polycaprolactone and 15 g/L of 8-HQ are characterized by the best corrosion resistance. This coating demonstrates the lowest value of corrosion current density (3.02 × 10−7 A cm−2). The formation of the hybrid coating results in the corrosion rate decrease by 18 times (0.007 mm year−1) as compared to the blank PEO layer (0.128 mm year−1). An inhibitor efficiency was established to be 83.9%. The mechanism of corrosion protection of Mg alloy via smart hybrid coating was revealed.
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Zhou G, Wang F, Lin G, Tang B, Li X, Ding X, Wang W, Zhang J, Shi Y. Novel coatings for the continuous repair of human bone defects. Colloids Surf B Biointerfaces 2023; 222:113127. [PMID: 36610365 DOI: 10.1016/j.colsurfb.2023.113127] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/29/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
Bone defects are the second most common tissue grafts after blood. However, bone grafts face several problems, such as bone scaffolds, which have low bioactivity and are prone to corrosion. Much of the current research on bone scaffolds is focused on the mechanical aspects such as structure and strength. Surface modification of the bone scaffold is carried out in terms of the mechanical structure or structural design of the bone scaffold with reference to a bionic structure. However, with the development of mechanical designs, materials science, and medicine, many studies have reported that promoting bone growth by modifying the structure of the scaffold or coating is not possible. Therefore, the application of a bioactive coating to the surface of the bone scaffold is particularly important to generate a synergistic effect between the structure and active coating. In this article, we present several perspectives to improve the bioactivity of bone scaffolds, including corrosion resistance, loading of bioactive coatings or drugs on bone scaffolds, improved adhesion to the surface of the bone scaffolds, immune response modulation, and drawing on bionic structures during manufacturing.
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Affiliation(s)
- Guangzhen Zhou
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China.
| | - Fei Wang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China.
| | - Guimei Lin
- School of Pharmaceutical Science, Shandong University, Jinan 250012, China.
| | - Bingtao Tang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China.
| | - Xuelin Li
- School of Arts and Design, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Xinbing Ding
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China.
| | - Wenguang Wang
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China.
| | - Jing Zhang
- Key Laboratory of Modern Preparation of TCM, Jiangxi University of Chinese Medicine, Nanchang 330004, China.
| | - Yanbin Shi
- School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China; Shandong Institute of Mechanical Design and Research, Jinan 250031, China; School of Arts and Design, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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Gnedenkov AS, Sinebryukhov SL, Filonina VS, Ustinov AY, Sukhoverkhov SV, Gnedenkov SV. New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys. Polymers (Basel) 2022; 15:polym15010202. [PMID: 36616552 PMCID: PMC9824560 DOI: 10.3390/polym15010202] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 01/04/2023] Open
Abstract
The method of hybrid coating formation on the surface of a bioresorbable wrought magnesium alloy and magnesium obtained by additive technology was proposed. Plasma electrolytic oxidation (PEO) with subsequent treatment of the material using an organic biocompatible corrosion inhibitor and a bioresorbable polymer material was used to obtain the protective layers. The optimal method of surface treatment was suggested. Using SEM/EDX analysis, XRD, XPS, and confocal Raman microspectroscopy, the composition of the formed surface layers was determined. The corrosion protection performance of the formed coatings was studied by potentiodynamic polarization and electrochemical impedance spectroscopy techniques in 0.9 wt.% NaCl and HBSS. Hydrogen evolution and mass loss tests were performed to study the corrosion rate of samples with different types of protective coatings. Sealing the pores of PEO coating with a polymeric material contributes to a significant reduction in the amount of the inhibitor diffusing into a corrosive medium. The best barrier properties were established for the hybrid coating formed with a one-stage application of benzotriazole and polycaprolactone. Such layers reduce the rate of alloy degradation due to active protection.
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Martin V, Garcia M, Montemor MDF, Fernandes JCS, Gomes PS, Fernandes MH. Simulating In Vitro the Bone Healing Potential of a Degradable and Tailored Multifunctional Mg-Based Alloy Platform. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9060255. [PMID: 35735498 PMCID: PMC9219794 DOI: 10.3390/bioengineering9060255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/05/2023]
Abstract
This work intended to elucidate, in an in vitro approach, the cellular and molecular mechanisms occurring during the bone healing process, upon implantation of a tailored degradable multifunctional Mg-based alloy. This was prepared by a conjoining anodization of the bare alloy (AZ31) followed by the deposition of a polymeric coating functionalized with hydroxyapatite. Human endothelial cells and osteoblastic and osteoclastic differentiating cells were exposed to the extracts from the multifunctional platform (having a low degradation rate), as well as the underlying anodized and original AZ31 alloy (with higher degradation rates). Extracts from the multifunctional coated alloy did not affect cellular behavior, although a small inductive effect was observed in the proliferation and gene expression of endothelial and osteoblastic cells. Extracts from the higher degradable anodized and original alloys induced the expression of some endothelial genes and, also, ALP and TRAP activities, further increasing the expression of some early differentiation osteoblastic and osteoclastic genes. The integration of these results in a translational approach suggests that, following the implantation of a tailored degradable Mg-based material, the absence of initial deleterious effects would favor the early stages of bone repair and, subsequently, the on-going degradation of the coating and the subjacent alloy would increase bone metabolism dynamics favoring a faster bone formation and remodeling process and enhancing bone healing.
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Affiliation(s)
- Victor Martin
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal; (V.M.); (M.G.); (P.S.G.)
- LAQV/REQUIMTE, University of Porto, 4100-007 Porto, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, 1649-003 Lisboa, Portugal
- CQE, IMS, Departamento de Engenharia Química, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal; (M.d.F.M.); (J.C.S.F.)
- EST Setúbal, CDP2T, Instituto Politécnico de Setúbal, 2910-761 Setúbal, Portugal
| | - Mónica Garcia
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal; (V.M.); (M.G.); (P.S.G.)
| | - Maria de Fátima Montemor
- CQE, IMS, Departamento de Engenharia Química, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal; (M.d.F.M.); (J.C.S.F.)
| | - João Carlos Salvador Fernandes
- CQE, IMS, Departamento de Engenharia Química, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisboa, Portugal; (M.d.F.M.); (J.C.S.F.)
| | - Pedro Sousa Gomes
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal; (V.M.); (M.G.); (P.S.G.)
- LAQV/REQUIMTE, University of Porto, 4100-007 Porto, Portugal
| | - Maria Helena Fernandes
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal; (V.M.); (M.G.); (P.S.G.)
- LAQV/REQUIMTE, University of Porto, 4100-007 Porto, Portugal
- Correspondence:
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Zhou W, Yan J, Li Y, Wang L, Jing L, Li M, Yu S, Cheng Y, Zheng Y. Based on the synergistic effect of Mg 2+ and antibacterial peptides to improve the corrosion resistance, antibacterial ability and osteogenic activity of magnesium-based degradable metals. Biomater Sci 2021; 9:807-825. [PMID: 33210105 DOI: 10.1039/d0bm01584a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To overcome the restricted degradation, poor antiacterial and osteoindctive problems of magnesium and its alloys, this study presented the spinning coating of an antimicrobial peptide (AP)-loaded silk fibroin (SF) composite onto a corrosion-resistant MgO-coated AZ31 Mg alloy via anodization (aMgO) and electrodeposition (eMgO) methods. The composite coatings not only created a smooth and hydrophilic surface, but also obviously improved the corrosion resistance according to the test of corrosion potential and current density. The colonization of E. coli on MgO-AP composite coatings was significantly reduced as compared to the MgO layers, due to the potential synergetic effects of APs and Mg2+. Compared with the bare AZ31, the composite coating inhibited the corrosion of the substrate and the release of Mg2+, supported the adhesion, spreading and proliferation of osteoblasts, and presented a significantly improved osteogenic differentiation trend. Therefore, the MgO-AP composite coating, which had both antibacterial and bone-promoting abilities, was expected to be applied for surface modification of magnesium alloy implants to solve the clinical problems of bacterial infection and poor osseointegration.
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Affiliation(s)
- Wenhao Zhou
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Jianglong Yan
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Yangyang Li
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Lan Wang
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Lei Jing
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Ming Li
- China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Sen Yu
- Shaanxi Key Laboratory of biomedical metal materials, Northwest Institute for Non-ferrous Metal Research, Xi'an 710016, P R China.
| | - Yan Cheng
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China.
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Nikbakht A, Dehghanian C, Parichehr R. Silane coatings modified with hydroxyapatite nanoparticles to enhance the biocompatibility and corrosion resistance of a magnesium alloy. RSC Adv 2021; 11:26127-26144. [PMID: 35479429 PMCID: PMC9037114 DOI: 10.1039/d1ra01018b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 08/11/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022] Open
Abstract
The fast corrosion rate of magnesium alloys has restricted their use as biodegradable implants. Hence developing a practical approach to retard the corrosion rate of the AZ31 magnesium alloy, as well as promoting cell adhesion and proliferation is of great importance. Silane coatings were applied through dip coating, on samples pretreated in hydrofluoric acid. Samples were immersed in simulated body fluid at 37 °C, and the coating performance was assessed by electrochemical impedance spectroscopy. The coating morphologies of samples were investigated through field emission scanning electron microscopy and a cell viability/proliferation (MTT) test was performed to evaluate cellular response. A 2.2 μm-thick coating was accomplished, which increased the corrosion resistance to three orders of magnitude higher than that of the bare sample. Hydroxyapatite nanoparticles were added to the silane coating to improve biocompatibility and facilitate bone formation. Changing the concentration of hydroxyapatite nanoparticles not only helped to optimize the barrier properties of the silane coating but also ameliorated MG-63 osteoblastic cell growth. The findings showed great promise to enhance and maintain the corrosion barrier property and induce high osteoblastic differentiation by employing 1000 mg L−1 of hydroxyapatite nanoparticles. Incorporation of hydroxyapatite nanoparticles in silane coatings improves both corrosion resistance and cell viability on magnesium AZ31 implants.![]()
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Affiliation(s)
- Aida Nikbakht
- School of Metallurgy and Materials Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Changiz Dehghanian
- School of Metallurgy and Materials Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Rasoul Parichehr
- School of Metallurgy and Materials Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
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Ansari Z, Kalantar M, Soriente A, Fasolino I, Kharaziha M, Ambrosio L, Raucci MG. In-Situ Synthesis and Characterization of Chitosan/Hydroxyapatite Nanocomposite Coatings to Improve the Bioactive Properties of Ti6Al4V Substrates. MATERIALS 2020; 13:ma13173772. [PMID: 32859071 PMCID: PMC7503881 DOI: 10.3390/ma13173772] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/20/2020] [Accepted: 08/24/2020] [Indexed: 12/17/2022]
Abstract
Ti6Al4V alloy is still attracting great interest because of its application as an implant material for hard tissue repair. This research aims to produce and investigate in-situ chitosan/hydroxyapatite (CS/HA) nanocomposite coatings based on different amounts of HA (10, 50 and 60 wt.%) on alkali-treated Ti6Al4V substrate through the sol-gel process to enhance in vitro bioactivity. The influence of different contents of HA on the morphology, contact angle, roughness, adhesion strength, and in vitro bioactivity of the CS/HA coatings was studied. Results confirmed that, with increasing the HA content, the surface morphology of crack-free CS/HA coatings changed for nucleation modification and HA nanocrystals growth, and consequently, the surface roughness of the coatings increased. Furthermore, the bioactivity of the CS/HA nanocomposite coatings enhanced bone-like apatite layer formation on the material surface with increasing HA content. Moreover, CS/HA nanocomposite coatings were biocompatible and, in particular, CS/10 wt.% HA composition significantly promoted human mesenchymal stem cells (hMSCs) proliferation. In particular, these results demonstrate that the treatment strategy used during the bioprocess was able to improve in vitro properties enough to meet the clinical performance. Indeed, it is predicted that the dense and crack-free CS/HA nanocomposite coatings suggest good potential application as dental implants.
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Affiliation(s)
- Zahra Ansari
- Department of Mining and Metallurgical Engineering, Yazd University, Yazd 89195-741, Iran;
| | - Mahdi Kalantar
- Department of Mining and Metallurgical Engineering, Yazd University, Yazd 89195-741, Iran;
- Correspondence: (M.K.); (M.G.R.)
| | - Alessandra Soriente
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), 80078 Naples, Italy; (A.S.); (I.F.); (L.A.)
| | - Ines Fasolino
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), 80078 Naples, Italy; (A.S.); (I.F.); (L.A.)
| | - Mahshid Kharaziha
- Biomaterials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), 80078 Naples, Italy; (A.S.); (I.F.); (L.A.)
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), 80078 Naples, Italy; (A.S.); (I.F.); (L.A.)
- Correspondence: (M.K.); (M.G.R.)
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Abstract
Structural elements in buildings exposed to high temperature may lose their original stability. Application of steel structures has several advantages; however, deflection under exposure to high temperatures may be a potential obstacle. Therefore, the aim of the study was to determine how temperature affects decomposition of protective paints applied in the construction. A dedicated installation for the analysis of the combustion process of protective coating paints in a laboratory scale was prepared. The experimental device consisted of the following parts: top-loading furnace connected to the gas conditioner, the LAT MG-2 gas mixer, and portable gas analyzer GASMET DX-4010. The following type of the protective powder coating paints were analyzed: alkyd and polyurethane. The obtained results indicated that during thermal decomposition of paints, formaldehyde, benzene, heptane, and butanol were released, however in different concentrations. Moreover, decomposition temperature affected the type and amount of released gas mixture components. With increasing temperature, increased release of formaldehyde and benzene was noticed, while the concentration of butanol and heptane decreased. Finally, the product of thermal decomposition emitted in the highest concentration was formaldehyde, which can cause irritation and sensitization in humans.
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Etim IP, Zhang W, Tan L, Yang K. Influence of stamping on the biodegradation behavior of Mg-2Zn-0.5Nd (ZN20) sheet. Bioact Mater 2020; 5:133-141. [PMID: 32055747 PMCID: PMC7005560 DOI: 10.1016/j.bioactmat.2020.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/15/2020] [Accepted: 01/20/2020] [Indexed: 10/26/2022] Open
Abstract
Stamping processing is commonly used to form medical devices and implant. However, for biodegradable Mg alloy, the stamping will influence the degradation behavior because of the change in microstructure after stamping. So in this study, the As-rolled Mg-2Zn-0.5Nd alloy (ZN20) was processed by stamping. The microstructure, crystallographic orientation and corrosion performance of this processing method was investigated to reveal the influence of the stamping process on the degradation rate of Rolled Mg-2Zn-Nd (ZN20). The degradation rate was measured by immersion of the Mg-2Zn-0.5Nd alloy in simulated body fluid using Electrochemical Impedance Spectroscopy, Potentiodynamic polarization and mass loss. The in vitro degradation result shows that the degradation rate of the Rolled Mg-2Zn-0.5Nd increased from 0.2 mm/year to 0.5 mm/year after stamping processing. The result reveals that the activation of the { 10 1 ‾ 2 } tension twin during stamping can remarkably weaken the { 0001} basal texture and have a significant influence on the corrosion rate of Stamped Mg-2Zn-0.5Nd sheet. After removing the deformation by annealing, the degradation rate was reduced to 0.15 mm/year. This work is expected to prompt better microstructural design of biomedical Mg in order to control its degradation behavior for biomedical application.
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Affiliation(s)
- Iniobong P Etim
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Wen Zhang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.,School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
| | - Lili Tan
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
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11
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Xu W, Yagoshi K, Asakura T, Sasaki M, Niidome T. Silk Fibroin as a Coating Polymer for Sirolimus-Eluting Magnesium Alloy Stents. ACS APPLIED BIO MATERIALS 2020; 3:531-538. [PMID: 35019396 DOI: 10.1021/acsabm.9b00957] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Magnesium (Mg) alloy-based, bioresorbable scaffolding is a promising candidate for next-generation stents. Rapid corrosion of Mg alloy in the physiological environment, however, hinders its clinical application. Hydrofluoric acid (HF) treatment and biodegradable polymer coating have been widely reported to enhance corrosion resistance of the Mg alloy. Poor biocompatibility of biodegradable polymers, however, is known to promote adverse events such as intimal hyperplasia and thrombosis. We selected silk fibroin (SF) as the polymer for stent coating and evaluated drug release from the SF layer, corrosion resistance of the Mg alloy, and biocompatibility. After the stent was coated with SF, ethanol treatment of the SF layer enriched the β-sheet content. Release of sirolimus (SRL), a drug that prevents intimal hyperplasia, from the SF layer was slower than that with a poly(ε-caprolactone), the conventional biodegradable polymer used on medical devices. Ethanol treatment of the SF-coated stent further slowed SRL release from the SF layer. Crystalline domains in SF formed by the β-sheet structure could contribute to the slow release of SRL. The SF coating suppressed local and deep corrosion of the Mg alloy stent, although total corrosion remained unaffected. Uniform corrosion without local or deep corrosion prolongs the stent's radial strength. The SF coating showed excellent biocompatibility with human umbilical vein endothelial cells and minimal platelet adhesion. SF is expected to replace traditional biodegradable polymers for use on bioresorbable stents.
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Affiliation(s)
- Wei Xu
- Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Kai Yagoshi
- Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Tetsuo Asakura
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Makoto Sasaki
- Japan Medical Device Technology Co., Ltd., 2020-3 Tahara, Mashiki-machi, Kumamoto 861-2202, Japan
| | - Takuro Niidome
- Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
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Palanisamy MS, Kulandaivelu R, T. S. Nellaiappan SN. Improving the corrosion resistance and bioactivity of magnesium by a carbonate conversion-polycaprolactone duplex coating approach. NEW J CHEM 2020. [DOI: 10.1039/c9nj06030h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Decreasing the rate of degradation of Mg has been the focus of developing magnesium carbonate-polycaprolactone duplex coatings for Mg.
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Affiliation(s)
| | | | - Sankara Narayanan T. S. Nellaiappan
- School of Mechanical, Aerospace and Nuclear Engineering (MANE) Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Republic of Korea
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13
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Julmi S, Krüger AK, Waselau AC, Meyer-Lindenberg A, Wriggers P, Klose C, Maier HJ. Processing and coating of open-pored absorbable magnesium-based bone implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1073-1086. [DOI: 10.1016/j.msec.2018.12.125] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 07/25/2018] [Accepted: 12/28/2018] [Indexed: 11/30/2022]
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14
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Córdoba LC, Hélary C, Montemor F, Coradin T. Bi-layered silane-TiO 2/collagen coating to control biodegradation and biointegration of Mg alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:126-138. [PMID: 30423694 DOI: 10.1016/j.msec.2018.09.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 08/07/2018] [Accepted: 09/10/2018] [Indexed: 11/30/2022]
Abstract
Magnesium alloys have shown high potential as biodegradable implants for bone repair applications. However, their fast degradation in physiological media demands tuning their corrosion rate to accompany the natural tissue healing processes. Here, a new bi-layered silane-TiO2/collagen coating efficient in stabilizing and biofunctionalizing the surface of AZ31 and ZE41 Mg alloys is presented. Corrosion tests performed in cell culture medium over 7 weeks showed that the bi-layered coating promotes the formation of a stable layer of Mg(OH)2/MgCO3/CaCO3 that provides effective protection to the alloys at advanced immersion stages. The intrinsic reactivity of each alloy plus formation of transitory calcium phosphate phases, resulted in distinct corrosion behavior in the short term. Cell experiments showed that the bi-layered coating improved osteoblasts and fibroblasts proliferation compared to bare and silane-TiO2-coated alloys. Different responses in terms of cell adhesion could be related to the intrinsic corrosion rate of each alloy and some toxicity from the alloying elements. The results evidenced the complex interplay between alloy nature, coating-alloy combination and cell type. The silane-TiO2/collagen coating showed to be a promising strategy to improve cell response and viability and to control degradation rate of Mg alloys in the long term.
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Affiliation(s)
- Laura C Córdoba
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France; CQE, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Christophe Hélary
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
| | - Fátima Montemor
- CQE, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Thibaud Coradin
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
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15
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Agarwal S, Riffault M, Hoey D, Duffy B, Curtin J, Jaiswal S. Biomimetic Hyaluronic Acid-Lysozyme Composite Coating on AZ31 Mg Alloy with Combined Antibacterial and Osteoinductive Activities. ACS Biomater Sci Eng 2017; 3:3244-3253. [PMID: 33445367 DOI: 10.1021/acsbiomaterials.7b00527] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study presents the covalent grafting of a hyaluronic acid-lysozyme (HA-LZ) composite onto corrosion-resistant silane-coated AZ31 Mg alloy via EDC-NHS coupling reactions. The HA-LZ composite coatings created a smooth and hydrophilic surface with the increased concentration of functional lysozyme complexed to the hyaluronic acid. This was confirmed by the measurement of AFM, water contact angle, and quantification of hyaluronic acid and lysozyme. The colonization of S.aureus on HA-LZ composite-coated substrates was significantly reduced as compared to the hyaluronic acid, lysozyme coated and uncoated AZ31 controls. Such activity is due to the enhanced antibacterial activity of lysozyme component as observed from the spread plate assay, propidium iodide staining, and scanning electron microscopy. Furthermore, morphology of the osteoblast cells, alkaline phosphatase activity and DNA quantification studies demonstrated the improved biocompatibility and osteoinductive properties of HA-LZ-coated substrates. This was verified by comparing with the lysozyme coated and uncoated AZ31 substrates in terms of cell adhesion, proliferation, and differentiation of osteoblastic cells. Therefore, such multifunctional composite coatings with antibacterial and osteoinductive properties are promising can be potentially used for the surface modifications of orthopedic implants.
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Affiliation(s)
- Sankalp Agarwal
- Centre for Research in Engineering and Surface Technology, FOCAS Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland.,School of Food Science and Environmental Health, Dublin Institute of Technology, Cathal Brugha Street, Dublin 1, Ireland
| | - Mathieu Riffault
- Advanced Materials and Bioengineering Research Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
| | - David Hoey
- Advanced Materials and Bioengineering Research Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
| | - Brendan Duffy
- Centre for Research in Engineering and Surface Technology, FOCAS Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
| | - James Curtin
- School of Food Science and Environmental Health, Dublin Institute of Technology, Cathal Brugha Street, Dublin 1, Ireland
| | - Swarna Jaiswal
- Centre for Research in Engineering and Surface Technology, FOCAS Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
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16
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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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17
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Chen J, Tan L, Yang K. Effect of heat treatment on mechanical and biodegradable properties of an extruded ZK60 alloy. Bioact Mater 2016; 2:19-26. [PMID: 29744407 PMCID: PMC5935012 DOI: 10.1016/j.bioactmat.2016.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 12/11/2016] [Accepted: 12/12/2016] [Indexed: 11/25/2022] Open
Abstract
ZK60 magnesium alloy possess good mechanical properties and is a potential biodegradable material. But its high degradation rate is not desirable. In this study the effect of heat treatment on the biodegradable property of ZK60 alloy was investigated. T5 treated, T6 treated, as-cast and as-extruded ZK60 alloys were studied. Microstructure characterization, electrochemical measurement and immersion test were carried out. The results showed that both the mechanical properties and degradation behavior were improved after T5 treatment due to the formation of small and uniformly distributed MgZn phases. The as-cast alloys also exhibited good corrosion resistance. However, the as-extruded and T6 treated samples were severely corroded due to the formation of large amounts of second phases accelerating the corrosion rate owing to the galvanic corrosion. The corrosion resistance of ZK60 alloy was as following: T5 treated > as-cast > T6 treated > as-extruded. The strength and corrosion resistance of ZK60 alloys are improved by T5 treatment due to the formation of small and uniformly distributed MgZn phases. After T6 treatment, certain amount of MgZn2 phase is precipitated along the grain boundary which deteriorates the corrosion resistance. The as-extruded ZK60 exhibits the worst corrosion resistance. The content of ZnZr phase is high in the second phase.
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Affiliation(s)
- Junxiu Chen
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Lili Tan
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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18
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Lim HK, Byun SH, Lee JY, Lee JW, Kim SM, Lee SM, Kim HE, Lee JH. Radiological, histological, and hematological evaluation of hydroxyapatite-coated resorbable magnesium alloy screws placed in rabbit tibia. J Biomed Mater Res B Appl Biomater 2016; 105:1636-1644. [PMID: 27174442 DOI: 10.1002/jbm.b.33703] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 03/15/2016] [Accepted: 04/21/2016] [Indexed: 11/11/2022]
Abstract
Titanium (Ti) screw has excellent mechanical property, and osseointegration capacity. However, they require surgery for removal. In contrast, polymer screws are resorbable, but they have poor mechanical properties. In this research, magnesium alloy screws (WE43: Mg-Y-Nd-Zr) that have advantages of titanium and polymer were manufactured. In addition, to increase biocompatibility and control degradation rate, the Mg alloy was coated with hydroxyapatite (HA). Torsion test and corrosion test were performed in vitro. For clinical, radiological and histological evaluation, on the eight rabbits, two HA-coated screws were installed in left tibia, and two noncoated screws were installed in right tibia. Each four rabbits were sacrificed 6 and 12 weeks postoperatively. For hematological evaluation, the same type of screws were installed on both legs. Complete blood count (CBC), Mg2+ concentrate were sampled from the ear central artery on the operation day for a control point, and at 1, 2, 4, 6, 8, and 12 weeks. Mg alloy screws have no differences of biocompatibility according to the HA coating. However, resorption of screw was slower in case of the HA coating. The hematological problem related releasing of Mg was not found. The results suggest that Mg alloy screws have feasibility for clinical application. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1636-1644, 2017.
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Affiliation(s)
- Ho-Kyung Lim
- Department of Oral and Maxillofacial Surgery, Clinical Trial Center, Seoul National University Dental Hospital, Seoul, Korea.,Department of Oral and Maxillofacial Surgery, Korea University Medical Center, Guro Hospital, Seoul, Korea
| | - Soo-Hwan Byun
- Department of Oral and Maxillofacial Surgery, Dongtan Sacred Heart Hospital, Hallym University Medical Center, Kyonggi-do, Korea
| | - Jin-Yong Lee
- Department of Oral and Maxillofacial Surgery, Korea University Medical Center, Guro Hospital, Seoul, Korea
| | - Jung-Woo Lee
- Department of Oral and Maxillofacial Surgery, Kyunghee University Dental Hospital, Seoul, Korea
| | - Sae-Mi Kim
- Department of Material Science and Engineering, Seoul National University, Seoul, Korea
| | - Sung-Mi Lee
- Department of Material Science and Engineering, Seoul National University, Seoul, Korea
| | - Hyoun-Ee Kim
- Department of Material Science and Engineering, Seoul National University, Seoul, Korea
| | - Jong-Ho Lee
- Department of Oral and Maxillofacial Surgery, Clinical Trial Center, Seoul National University Dental Hospital, Seoul, Korea
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19
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Bakhsheshi-Rad H, Hamzah E, Kasiri-Asgarani M, Jabbarzare S, Iqbal N, Abdul Kadir M. Deposition of nanostructured fluorine-doped hydroxyapatite–polycaprolactone duplex coating to enhance the mechanical properties and corrosion resistance of Mg alloy for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:526-537. [DOI: 10.1016/j.msec.2015.11.057] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/31/2015] [Accepted: 11/20/2015] [Indexed: 11/28/2022]
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20
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Kaleekkal NJ, Rana D, Mohan D. Functionalized MWCNTs in improving the performance and biocompatibility of potential hemodialysis membranes. RSC Adv 2016. [DOI: 10.1039/c6ra09354j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Functionalized multi-walled carbon nanotube incorporated polyetherimide mixed matrix membranes for blood purification application.
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Affiliation(s)
- Noel Jacob Kaleekkal
- Membrane Laboratory
- Department of Chemical Engineering
- Anna University
- Chennai-600025
- India
| | - Dipak Rana
- Department of Chemical and Biological Engineering
- University of Ottawa
- Ottawa
- Canada
| | - D. Mohan
- Membrane Laboratory
- Department of Chemical Engineering
- Anna University
- Chennai-600025
- India
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21
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Agarwal S, Morshed M, Labour MN, Hoey D, Duffy B, Curtin J, Jaiswal S. Enhanced corrosion protection and biocompatibility of a PLGA–silane coating on AZ31 Mg alloy for orthopaedic applications. RSC Adv 2016. [DOI: 10.1039/c6ra24382g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper reports a multi-step procedure to fabricate a novel corrosion resistant and biocompatible PLGA–silane coating on the magnesium (Mg) alloy AZ31.
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Affiliation(s)
- Sankalp Agarwal
- Centre for Research in Engineering and Surface Technology
- FOCAS Institute
- Dublin Institute of Technology
- Dublin 8
- Ireland
| | - Muhammad Morshed
- Centre for Research in Engineering and Surface Technology
- FOCAS Institute
- Dublin Institute of Technology
- Dublin 8
- Ireland
| | - Marie-Noelle Labour
- Trinity Centre for Bioengineering
- Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - David Hoey
- Trinity Centre for Bioengineering
- Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Brendan Duffy
- Centre for Research in Engineering and Surface Technology
- FOCAS Institute
- Dublin Institute of Technology
- Dublin 8
- Ireland
| | - James Curtin
- School of Food Science and Environmental Health
- Dublin Institute of Technology
- Dublin 1
- Ireland
| | - Swarna Jaiswal
- Centre for Research in Engineering and Surface Technology
- FOCAS Institute
- Dublin Institute of Technology
- Dublin 8
- Ireland
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22
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Zomorodian A, Santos C, Carmezim M, Silva TE, Fernandes J, Montemor M. “In-vitro” corrosion behaviour of the magnesium alloy with Al and Zn (AZ31) protected with a biodegradable polycaprolactone coating loaded with hydroxyapatite and cephalexin. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.04.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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