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Yang N, Venezuela J, Allavena R, Lau C, Dargusch M. Zinc-based subcuticular absorbable staples: An in vivo and in vitro study. Acta Biomater 2023:S1742-7061(23)00355-0. [PMID: 37369266 DOI: 10.1016/j.actbio.2023.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 05/23/2023] [Accepted: 06/21/2023] [Indexed: 06/29/2023]
Abstract
A zinc-nutrient element alloy (Zn-1.0Cu-0.5Ca) was developed into subcuticular absorbable staples (SAS) as a robust alternative to the commercially available poly(l-lactide-co-glycolide) (PLGA) SAS for the first time. The fixation properties of the Zn SAS were measured via pull-out tests and in-situ lap-shear pull-out test comparatively against the PLGA SAS. The Zn SAS exhibited fixation force of 18.9±0.2 N, which was over three times higher than that of PLGA SAS (5.5±0.1 N). The Zn SAS was used to close incision wounds in a SD rat model for biodegradability and biocompatibility characterisation at 1, 4 and 12 weeks. The Zn SAS showed uniform degradation behaviour after in vivo implantation at the average rate of 198±54, 112±28, and 70±24 μm/y after 1, 4, and 12 weeks, which reduced the fixation force to 16.8±1.1 N, 15.4±0.9 N, 12.7±0.7 N, respectively. These findings showed the potential of the Zn SAS for the closure of heavy loading and slowing healing tissues. The Zn SAS enabled successful closure and healing of the incision wound, similar to the PLGA staples. However, the slow long-term degradation rate of the Zn SAS may lead to unnecessary implant retention. In addition, the alloy SAS resulted in higher local foreign body responses due to their stiffness. Reducing the implant cross-section profile and applying low stiffness and a corrosion-accelerating coating are suggested as possible approaches to reduce post-service implant retention and improve the biocompatibility of the Zn SAS. STATEMENT OF SIGNIFICANCE: This work reports the fabrication of the first metallic subcuticular absorbable staples (SAS) made from Zn-Cu-Ca alloy for skin wound closure applications. The Zn-based SAS were characterised in vitro and in vivo (SD rat model) for biodegradability, fixation properties, biocompatibility and inflammatory responses, which were compared against the commercially available PLGA-based SAS. The Zn-based SAS provided a secure attachment of the full-thickness wounds on SD rats and allowed successful healing during the 12-week service period. In addition, the in vitro results showed that the Zn-based SAS provided more than three times higher fixation strength than the commercial PLGA, indicating the potential of the Zn-based SAS for load-bearing wound closure application.
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Affiliation(s)
- Nan Yang
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, Advanced Engineering Building, Bld 49, The University of Queensland, Staff House Rd, St Lucia QLD 4072, Australia
| | - Jeffrey Venezuela
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, Advanced Engineering Building, Bld 49, The University of Queensland, Staff House Rd, St Lucia QLD 4072, Australia
| | - Rachel Allavena
- School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia
| | - Cora Lau
- The University of Queensland, Biological Resources, Brisbane, QLD, 4072, Australia
| | - Matthew Dargusch
- Queensland Centre for Advanced Materials Processing and Manufacturing (AMPAM) School of Mechanical and Mining Engineering, Advanced Engineering Building, Bld 49, The University of Queensland, Staff House Rd, St Lucia QLD 4072, Australia.
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2
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Okutan B, Schwarze UY, Berger L, Martinez DC, Herber V, Suljevic O, Plocinski T, Swieszkowski W, Santos SG, Schindl R, Löffler JF, Weinberg AM, Sommer NG. The combined effect of zinc and calcium on the biodegradation of ultrahigh-purity magnesium implants. BIOMATERIALS ADVANCES 2023; 146:213287. [PMID: 36669235 DOI: 10.1016/j.bioadv.2023.213287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 12/15/2022] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Magnesium (Mg)-based implants are promising candidates for orthopedic interventions, because of their biocompatibility, good mechanical features, and ability to degrade completely in the body, eliminating the need for an additional removal surgery. In the present study, we synthesized and investigated two Mg-based materials, ultrahigh-purity ZX00 (Mg-Zn-Ca; <0.5 wt% Zn and <0.5 wt% Ca, in wt%; Fe-content <1 ppm) and ultrahigh-purity Mg (XHP-Mg, >99.999 wt% Mg; Fe-content <1 ppm), in vitro and in vivo in juvenile healthy rats to clarify the effect of the alloying elements Zn and Ca on mechanical properties, microstructure, cytocompatibility and degradation rate. Potential differences in bone formation and bone in-growth were also assessed and compared with state-of-the-art non-degradable titanium (Ti)-implanted, sham-operated, and control (non-intervention) groups, using micro-computed tomography, histology and scanning electron microscopy. At 6 and 24 weeks after implantation, serum alkaline phosphatase (ALP), calcium (Ca), and Mg level were measured and bone marrow stromal cells (BMSCs) were isolated for real-time PCR analysis. Results show that ZX00 implants have smaller grain size and superior mechanical properties than XHP-Mg, and that both reveal good biocompatibility in cytocompatibilty tests. ZX00 homogenously degraded with an increased gas accumulation 12 and 24 weeks after implantation, whereas XHP-Mg exhibited higher gas accumulation already at 2 weeks. Serum ALP, Ca, and Mg levels were comparable among all groups and both Mg-based implants led to similar relative expression levels of Alp, Runx2, and Bmp-2 genes at weeks 6 and 24. Histologically, Mg-based implants are superior for new bone tissue formation and bone in-growth compared to Ti implants. Furthermore, by tracking the sequence of multicolor fluorochrome labels, we observed higher mineral apposition rate at week 2 in both Mg-based implants compared to the control groups. Our findings suggest that (i) ZX00 and XHP-Mg support bone formation and remodeling, (ii) both Mg-based implants are superior to Ti implants in terms of new bone tissue formation and osseointegration, and (iii) ZX00 is more favorable due to its lower degradation rate and moderate gas accumulation.
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Affiliation(s)
- Begüm Okutan
- Department of Orthopedics and Traumatology, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
| | - Uwe Y Schwarze
- Department of Orthopedics and Traumatology, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria; Department of Dentistry and Oral Health, Division of Oral Surgery and Orthodontics, Medical University of Graz, Billrothgasse 4, 8010 Graz, Austria.
| | - Leopold Berger
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland.
| | - Diana C Martinez
- Department of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
| | - Valentin Herber
- Department of Dentistry and Oral Health, Division of Oral Surgery and Orthodontics, Medical University of Graz, Billrothgasse 4, 8010 Graz, Austria; Department of Oral Surgery, University Center for Dental Medicine, University of Basel, Mattenstrasse 40, 4058 Basel, Switzerland.
| | - Omer Suljevic
- Department of Orthopedics and Traumatology, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
| | - Tomasz Plocinski
- Department of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
| | - Wojciech Swieszkowski
- Department of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland.
| | - Susana G Santos
- i3S - Instituto de Investigação e Inovação em Saúde, and INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen 208, Porto 4200-135, Portugal.
| | - Rainer Schindl
- Gottfried Schatz Research Center, Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6, 8010 Graz, Austria.
| | - Jörg F Löffler
- Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland.
| | - Annelie M Weinberg
- Department of Orthopedics and Traumatology, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
| | - Nicole G Sommer
- Department of Orthopedics and Traumatology, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
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3
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Dargusch MS, Balasubramani N, Yang N, Johnston S, Ali Y, Wang G, Venezuela J, Carluccio J, Lau C, Allavena R, Liang D, Mardon K, Ye Q. In vivo performance of a rare earth free Mg–Zn–Ca alloy manufactured using twin roll casting for potential applications in the cranial and maxillofacial fixation devices. Bioact Mater 2022; 12:85-96. [PMID: 35087965 PMCID: PMC8777300 DOI: 10.1016/j.bioactmat.2021.10.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/24/2021] [Accepted: 10/18/2021] [Indexed: 12/20/2022] Open
Abstract
A magnesium alloy containing essential, non-toxic, biodegradable elements such as Ca and Zn has been fabricated using a novel twin-roll casting process (TRC). Microstructure, mechanical properties, in vivo corrosion and biocompatibility have been assessed and compared to the properties of the rare earth (RE) element containing WE43 alloy. TRC Mg-0.5 wt% Zn- 0.5 wt% Ca exhibited fine grains with an average grain size ranging from 70 to 150 μm. Mechanical properties of a TRC Mg-0.5Zn-0.5Ca alloy showed an ultimate tensile strength of 220 MPa and ductility of 9.3%. The TRC Mg-0.5Zn-0.5Ca alloy showed a degradation rate of 0.51 ± 0.07 mm/y similar to that of the WE43 alloy (0.47 ± 0.09 mm/y) in the rat model after 1 week of implantation. By week 4 the biodegradation rates of both alloys studied were lowered and stabilized with fewer gas pockets around the implant. The histological analysis shows that both WE43 and TRC Mg-0.5Zn-0.5Ca alloy triggered comparable tissue healing responses at respective times of implantation. The presence of more organized scarring tissue around the TRC Mg-0.5Zn-0.5Ca alloys suggests that the biodegradation of the RE-free alloy may be more conducive to the tissue proliferation and remodelling process. Mg-0.5Zn-0.5Ca alloy plates were fabricated by a twin-roll casting (TRC) process. TRC alloy showed an ultimate strength and elongation of 221 ± 2 MPa and 9 ± 2%. Gas development during in vivo degradation was analysed using μ-CT techniques. Histological analysis revealed a good biocompatibility and promoted healing.
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4
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Microstructure Evolution and Properties of β-TCP/Mg-Zn-Ca Biocomposite Processed by Hot Extrusion Combined with Multi-Pass ECAP. METALS 2022. [DOI: 10.3390/met12040685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To further improve the comprehensive performance of Mg-based alloy, hot extrusion combined with multi-pass equal channel angular pressing (ECAP) was applied to process Mg-3 wt%Zn-0.2 wt%Ca alloy and 1 wt%β-TCP/Mg-3 wt%Zn-0.2 wt%Ca biocomposites. The microstructure evolution, mechanical properties, corrosion behavior, and cell biocompatibility of the experimental specimens were systematically investigated. The average grain size of 13.4 ± 0.6 μm in MgZnCa alloy and 9.6 ± 0.3 μm in composites materials can be achieved by six ECAP passes. The uniaxial compressive strength (UCS) of 388.4 ± 7.3 MPa and the strain at failure of 14.3 ± 1.5% were confirmed in MgZnCa alloy, while the UCS of 405.3 ± 7.4 MPa and the strain at failure of 9.8 ± 1.9% were achieved by the addition of β-TCP after six ECAP passes. In spite of different compositions, the minimum corrosion rate of 0.895 mm·Y−1 and 1.117 mm·Y−1 can be achieved by two ECAP passes at 593 K. The cytocompatibility evaluation revealed that the experimental materials processed by six ECAP passes had no significant cytotoxicity to L929 cells, and the addition of β-TCP improved the cytocompatibility.
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5
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Zinc-nutrient element based alloys for absorbable wound closure devices fabrication: Current status, challenges, and future prospects. Biomaterials 2021; 280:121301. [PMID: 34922270 DOI: 10.1016/j.biomaterials.2021.121301] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/25/2021] [Accepted: 11/29/2021] [Indexed: 01/22/2023]
Abstract
The need for the development of load-bearing, absorbable wound closure devices is driving the research for novel materials that possess both good biodegradability and superior mechanical characteristics. Biodegradable metals (BMs), namely: magnesium (Mg), zinc (Zn) and iron (Fe), which are currently being investigated for absorbable vascular stent and orthopaedic implant applications, are slowly gaining research interest for the fabrication of wound closure devices. The current review presents an overview of the traditional and novel BM-based intracutaneous and transcutaneous wound closure devices, and identifies Zn as a promising substitute for the traditional materials used in the fabrication of absorbable load-bearing sutures, internal staples, and subcuticular staples. In order to further strengthen Zn to be used in highly stressed situations, nutrient elements (NEs), including calcium (Ca), Mg, Fe, and copper (Cu), are identified as promising alloying elements for the strengthening of Zn-based wound closure device material that simultaneously provide potential therapeutic benefit to the wound healing process during implant biodegradation process. The influence of NEs on the fundamental characteristics of biodegradable Zn are reviewed and critically assessed with regard to the mechanical properties and biodegradability requirements of different wound closure devices. The opportunities and challenges in the development of Zn-based wound closure device materials are presented to inspire future research on this rapidly growing field.
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6
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Fan X, Zan R, Bian L, Chen Y. Hem-O-Lok clips may lead to misdiagnosis in postoperative follow-up of tumor patients: A case report. Asian J Surg 2021; 44:1123-1124. [PMID: 34272098 DOI: 10.1016/j.asjsur.2021.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 10/20/2022] Open
Affiliation(s)
- Xinqi Fan
- Department of General Surgery, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Jiangsu, 214002, China
| | - Rui Zan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Linjie Bian
- Department of Medical Imaging Department, Wuxi No.2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, Jiangsu, 214002, China
| | - Yigang Chen
- Department of General Surgery, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Jiangsu, 214002, China; Department of General Surgery, Affiliated Wuxi Clinical College of Nantong University, Jiangsu, 214002, China.
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7
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Akgöl S, Ulucan-Karnak F, Kuru Cİ, Kuşat K. The usage of composite nanomaterials in biomedical engineering applications. Biotechnol Bioeng 2021; 118:2906-2922. [PMID: 34050923 DOI: 10.1002/bit.27843] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 05/04/2021] [Accepted: 05/23/2021] [Indexed: 12/23/2022]
Abstract
Nanotechnology is still developing over the decades and it is commonly used in biomedical applications with the design of nanomaterials due to the several purposes. With the investigation of materials on the molecular level has increased the develop composite nanomaterials with exceptional properties using in different applications and industries. The application of these composite nanomaterials is widely used in the fields of textile, chemical, energy, defense industry, electronics, and biomedical engineering which is growing and developing on human health. Development of biosensors for the diagnosis of diseases, drug targeting and controlled release applications, medical implants and imaging techniques are the research topics of nanobiotechnology. In this review, overview of the development of nanotechnology and applications which is use of composite nanomaterials in biomedical engineering is provided.
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Affiliation(s)
- Sinan Akgöl
- Department of Biochemistry, Faculty of Science, Ege University, İzmir, Turkey
| | | | - Cansu İlke Kuru
- Department of Biochemistry, Faculty of Science, Ege University, İzmir, Turkey
| | - Kevser Kuşat
- Department of Chemistry, Faculty of Science, Dokuz Eylul University, İzmir, Turkey
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8
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Cheng S, Zhang D, Li M, Liu X, Zhang Y, Qian S, Peng F. Osteogenesis, angiogenesis and immune response of Mg-Al layered double hydroxide coating on pure Mg. Bioact Mater 2021; 6:91-105. [PMID: 32817917 PMCID: PMC7426541 DOI: 10.1016/j.bioactmat.2020.07.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 12/15/2022] Open
Abstract
Layered double hydroxides (LDHs) are widely studied to enhance corrosion resistance and biocompatibility of Mg alloys, which are promising bone implants. However, the influence of LDH coating on the osteointegration of Mg implants lacks of a systematic study. In this work, Mg-Al LDH coating was prepared on pure Mg via hydrothermal treatment. The as-prepared Mg-Al LDH coated Mg exhibited better in vitro and in vivo corrosion resistance than bare Mg and Mg(OH)2 coated Mg. In vitro culture of mouse osteoblast cell line (MC3T3-E1) suggested that Mg-Al LDH coated Mg was more favorable for its osteogenic differentiation. In vitro culture of HUVECs revealed that cells cultured in the extract of Mg-Al LDH coated Mg showed superior angiogenic behaviors. More importantly, the immune response of Mg-Al LDH coated Mg was studied by in vitro culturing murine-derived macrophage cell line (RAW264.7). The results verified that Mg-Al LDH coated Mg could induce macrophage polarize to M2 phenotype (anti-inflammatory). Furthermore, the secreted factor in the macrophage-conditioned culture medium of Mg-Al LDH group was more suitable for the bone differentiation of rat bone marrow stem cells (rBMSCs) and the angiogenic behavior of human umbilical vein endothelial cells (HUVECs). Finally, the result of femoral implantation suggested that Mg-Al LDH coated Mg exhibited better osteointegration than bare Mg and Mg(OH)2 coated Mg. With favorable in vitro and in vivo performances, Mg-Al LDH is promising as protective coating on Mg for orthopedic applications.
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Affiliation(s)
- Shi Cheng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Dongdong Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Mei Li
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Cixi Center of Biomaterials Surface Engineering, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
| | - Shi Qian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Cixi Center of Biomaterials Surface Engineering, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Ningbo, 315300, China
| | - Feng Peng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, China
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9
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Yu X, Li D, Liu Y, Ding P, He X, Zhao Y, Chen M, Liu D. In vitro and in vivo studies on the degradation and biosafety of Mg-Zn-Ca-Y alloy hemostatic clip with the carotid artery of SD rat model. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111093. [PMID: 32600697 DOI: 10.1016/j.msec.2020.111093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/25/2020] [Accepted: 05/11/2020] [Indexed: 02/07/2023]
Abstract
An Mg-Zn-Ca-Y alloy operative clip was developed to overcome the drawbacks of the Ti clips such as ion dissolution inflammation, interference imaging diagnosis, and the potential harm that permanent retention brings to the patient. The structure optimization design of the hemostatic clip was carried out by the finite element numerical simulation method to realize the matching between the structure design and the material properties. Hot extrusion and wire cutting process was used to prepare the Mg-Zn-Ca-Y alloy operative clip. Corrosion degradation behavior of Mg-Zn-Ca-Y alloy in vitro was investigated using electrochemical noise (EN) and immersion test in Simulated body fluid (SBF). The carotid artery of SD rats was clipped using the Mg-Zn-Ca-Y operative clip to evaluate occlusion safety and the complete corrosion degradation behavior and biocompatibility of Mg-Zn-Ca-Y alloy clip in vivo were investigated using micro-computed tomography, histological analysis, and blood biochemical indicators. It was found that the newly designed Mg-Zn-Ca-Y clip can successfully ligate the carotid artery, and no blood leakage occurred after surgery. After eight months, the Mg-Zn-Ca-Y clip degraded utterly. Histological analysis and various blood biochemical parameters in SD rat serum samples collected at different time periods showed no tissue inflammation around the clips.
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Affiliation(s)
- Xiao Yu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Dongyang Li
- Tianjin Medical University General Hospital, Department of General Surgery, Tianjin 300070, China
| | - Yuanchao Liu
- Tianjin Medical University General Hospital, Department of General Surgery, Tianjin 300070, China
| | - Pengfei Ding
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Xianghui He
- Tianjin Medical University General Hospital, Department of General Surgery, Tianjin 300070, China
| | - Yue Zhao
- School of Mechanical, Materials & Mechatronic Engineering, University of Wollongong, NSW2522, Australia
| | - Minfang Chen
- Tianjin Key Laboratory for Photoelectric Materials and Devices, Tianjin 300384, China
| | - Debao Liu
- National Demonstration Center for Experimental Function Materials Education, Tianjin University of Technology, Tianjin 300384, China.
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10
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Xi Z, Wu Y, Xiang S, Sun C, Wang Y, Yu H, Fu Y, Wang X, Yan J, Zhao D, Wang Y, Zhang N. Corrosion Resistance and Biocompatibility Assessment of a Biodegradable Hydrothermal-Coated Mg-Zn-Ca Alloy: An in Vitro and in Vivo Study. ACS OMEGA 2020; 5:4548-4557. [PMID: 32175501 PMCID: PMC7066561 DOI: 10.1021/acsomega.9b03889] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 02/13/2020] [Indexed: 05/09/2023]
Abstract
A hydrothermal (HT) coating was applied to the biomedical Mg-Zn-Ca alloy surface by microarc oxidation (MAO) and heat treatment. Then, the corrosion resistance and biocompatibility of the coated alloy was evaluated in vitro and in vivo. The corrosion rate (CR) of HT-coated implants was significantly lower in experiment. In addition, this CR increased over time in vivo but was stable, albeit higher, in vitro. The proliferation, adhesion, and live activity of bone marrow stem cells (BMSCs) were significantly greater on the surface of the HT-coated Mg alloy in vitro. Serum Mg2+ was always within the normal range in rabbits with implants, although Ca2+ was higher than normal for both uncoated and coated scaffolds. There were no significant pathological effects on the main organs of alloy-implanted rabbits compared with healthy animals. Thus, the HT coating significantly improved the corrosion resistance and biocompatibility of the Mg-Zn-Ca alloy.
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Affiliation(s)
- Zheng Xi
- The
Second Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, Heilongjiang, People’s Republic
of China
| | - Yunfeng Wu
- Institute
for Advanced Ceramics, Harbin Institute
of Technology, Harbin 150001, Heilongjiang, People’s Republic of China
| | - Shouyang Xiang
- The
Second Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang, People’s Republic
of China
| | - Chu Sun
- The
Second Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, Heilongjiang, People’s Republic
of China
| | - Yongxuan Wang
- Affiliated
Zhongshan Hospital of Dalian University, Dalian 116027, Liaoning, People’s Republic of China
| | - Haiming Yu
- The
Second Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, Heilongjiang, People’s Republic
of China
| | - Yu Fu
- The
Second Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, Heilongjiang, People’s Republic
of China
| | - Xintao Wang
- The
Second Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang, People’s Republic
of China
| | - Jinglong Yan
- The
Second Affiliated Hospital of Harbin Medical University, Harbin 150000, Heilongjiang, People’s Republic
of China
| | - Dewei Zhao
- Affiliated
Zhongshan Hospital of Dalian University, Dalian 116027, Liaoning, People’s Republic of China
- E-mail: (D.Z.)
| | - Yaming Wang
- Institute
for Advanced Ceramics, Harbin Institute
of Technology, Harbin 150001, Heilongjiang, People’s Republic of China
- E-mail: (Y.W.)
| | - Nan Zhang
- The
Second Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, Heilongjiang, People’s Republic
of China
- E-mail: (N.Z.)
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11
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Chen K, Xie X, Tang H, Sun H, Qin L, Zheng Y, Gu X, Fan Y. In vitro and in vivo degradation behavior of Mg-2Sr-Ca and Mg-2Sr-Zn alloys. Bioact Mater 2020; 5:275-285. [PMID: 32128466 PMCID: PMC7044521 DOI: 10.1016/j.bioactmat.2020.02.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
Magnesium alloys with integration of degradability and good mechanical performance are desired for orthopedic implants. In this paper, Mg-2Sr-Ca and Mg-2Sr-Zn alloys were prepared and the degradation as well as the bone response were investigated. Compared with the binary Mg-2Sr alloys, the addition of Ca and Zn improved the in vitro and in vivo corrosion resistance. Mg-2Sr-Ca and Mg-2Sr-Zn alloys exhibited more uniform corrosion and maintained the configuration of the implants 4 weeks post-implantation. The in vivo corrosion rates were 0.85 mm/yr for Mg-2Sr-Zn and 1.10 mm/yr for Mg-2Sr-Ca in comparison with 1.37 mm/yr for Mg-2Sr. The in vitro cell tests indicated that Mg-2Sr-Ca and Mg-2Sr-Zn alloys exhibited higher MG63 cell viability than Mg-2Sr alloy. Furthermore, these two alloys can promote the mineralization and new bone formation without inducing any significant adverse effects and this sound osteogenic properties suggest its attractive clinical potential.
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Affiliation(s)
- Kai Chen
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
| | - Xinhui Xie
- The Department of Orthopedics, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, 210009, China.,Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong National Research Center for Rehabilitation Technical Aids, Beijing, 100176, China
| | - Hongyan Tang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
| | - Hui Sun
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
| | - Ling Qin
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong National Research Center for Rehabilitation Technical Aids, Beijing, 100176, China
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Xuenan Gu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang University, Beijing, 100083, China.,National Research Center for Rehabilitation Technical Aids, Beijing, 100176, China
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