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Yang J, Zhang W, Lin B, Mao S, Liu G, Tan K, Tang J. Enhancement of Local Osseointegration and Implant Stability of Titanium Implant in Osteoporotic Rats by Biomimetic Multilayered Structures Containing Catalpol. ACS OMEGA 2024; 9:29544-29556. [PMID: 39005760 PMCID: PMC11238284 DOI: 10.1021/acsomega.4c02322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 06/13/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024]
Abstract
This study examined the surface modification of titanium (Ti) implants to enhance early-stage osseointegration, which reduced the failure rate of internal fixation in osteoporotic fractures that inherently decrease in bone mass and strength. We employed a layer-by-layer electroassembly technique to deposit catalpol-containing hyaluronic acid/chitosan multilayers onto the surface of Ti implants. To evaluate the in vitro osteoinductive effects of catalpol-coated Ti implants, the robust osteoblast differentiation capacity of the murine preosteoblast cell line, MC3T3-E1, was employed. Furthermore, the performance of these implants was evaluated in vivo through femoral intramedullary implantation in Sprague-Dawley rats. The engineered implant effectively regulated catalpol release, promoting increased bone formation during the initial stages of implantation. The in vitro findings demonstrated that catalpol-coated Ti surfaces boosted ALP activity, cell proliferation as measured by CCK-8, and osteogenic protein expression via WB analysis, surpassing the uncoated Ti group (P < 0.05). In vivo micro-computed tomography (CT) and histological analyses revealed that catalpol-coated Ti significantly facilitated the formation and remodeling of new bone in osteoporotic rats at 14 days post-implantation. This study outlines a comprehensive and straightforward methodology for the fabrication of biofunctional Ti implants to address osteoporosis.
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Affiliation(s)
- Jiayi Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital Hospital of Wenzhou Medical University, Nanbaixiang Street, Ouhai District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Wei Zhang
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Binghao Lin
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Shuming Mao
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Guangyao Liu
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Kai Tan
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
| | - Jiahao Tang
- Department of Orthopaedics Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, NO.109, Xueyuan West Road, Lucheng District, Wenzhou 325000, Zhejiang Province, People's Republic of China
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Nguyen TD, Singh C, Lee DH, Kim YS, Lee T, Lee SY. Deciphering Hydrogen Embrittlement Mechanisms in Ti6Al4V Alloy: Role of Solute Hydrogen and Hydride Phase. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1178. [PMID: 38473649 DOI: 10.3390/ma17051178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
Ti6Al4V (Ti64) is a versatile material, finding applications in a wide range of industries due to its unique properties. However, hydrogen embrittlement (HE) poses a challenge in hydrogen-rich environments, leading to a notable reduction in strength and ductility. This study investigates the complex interplay of solute hydrogen (SH) and hydride phase (HP) formation in Ti64 by employing two different current densities during the charging process. Nanoindentation measurements reveal distinct micro-mechanical behavior in base metal, SH, and HP, providing crucial insights into HE mechanisms affecting macro-mechanical behavior. The fractography and microstructural analysis elucidate the role of SH and HP in hydrogen-assisted cracking behaviors. The presence of SH heightens intergranular cracking tendencies. In contrast, the increased volume of HP provides sites for crack initiation and propagation, resulting in a two-layer brittle fracture pattern. The current study contributes to a comprehensive understanding of HE in Ti6Al4V, essential for developing hydrogen-resistant materials.
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Affiliation(s)
- Tien-Dung Nguyen
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Chetan Singh
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dong-Hyun Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - You Sub Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Taeho Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Soo Yeol Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
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3
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Nguyen TD, Ansari N, Lee KH, Lee DH, Han JH, Lee SY. Effect of Strain Rate on Hydrogen Embrittlement of Ti6Al4V Alloy. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1100. [PMID: 38473572 DOI: 10.3390/ma17051100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024]
Abstract
The phenomenon of hydrogen embrittlement (HE) in metals and alloys, which determines the performance of components in hydrogen environments, has recently been drawing considerable attention. This study explores the interplay between strain rates and solute hydrogen in inducing HE of Ti6Al4V alloy. For the hydrogen-charged sample, as the strain rate was decreased from 10-2/s to 10-5/s, the ductility decreased significantly, but the HE effect on mechanical strength was negligible. The low strain rate (LSR) conditions facilitated the development of high-angle grain boundaries, providing more pathways for hydrogen diffusion and accumulation. The presence of solute hydrogen intensified the formation of nano/micro-voids and intergranular cracking tendencies, with micro-crack occurrences observed exclusively in the LSR conditions. These factors expanded the brittle hydrogen-damaged region more deeply into the interior of the lattice. This, in turn, accelerated both crack initiation and intergranular crack propagation, finally resulting in a considerable HE effect and a reduction in ductility at the LSR. The current study underscores the influence of strain rate on HE, enhancing the predictability of longevity and improving the reliability of components operating in hydrogen-rich environments under various loading conditions.
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Affiliation(s)
- Tien-Dung Nguyen
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Nooruddin Ansari
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Keun Hyung Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dong-Hyun Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jun Hyun Han
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Soo Yeol Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
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Hussein MA, Demir BY, Kumar AM, Abdelaal AF. Surface Properties and In Vitro Corrosion Studies of Blasted and Thermally Treated Ti6Al4V Alloy for Bioimplant Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7615. [PMID: 36363207 PMCID: PMC9655274 DOI: 10.3390/ma15217615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The biomedical Ti6Al4V alloy was thermally treated under sandblasting and mirror finish surface preparation conditions. The surface morphology, structure, roughness, wettability, and energy were characterized. Microhardness and in vitro corrosion studies were carried out. X-ray diffraction results showed a formation of rutile TiO2 phase for thermally treated samples under different pretreated conditions. The thermally oxidized samples exhibited an increase in microhardness compared to the untreated mirror finish and sandblasted samples by 22 and 33%, respectively. The wettability study revealed enhanced hydrophilicity of blasted and thermally treated samples. The surface energy of the thermal treatment samples increased by 26 and 32.6% for mirror surface and blasted preconditions, respectively. The acquired in vitro corrosion results using potentiodynamic polarization measurement and electrochemical impedance spectroscopy confirmed the surface protective performance against corrosion in Hank's medium. The enhanced surface characteristics and corrosion protection of treated Ti6Al4V alloy give it potential for bio-implant applications.
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Affiliation(s)
- Mohamed A. Hussein
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
| | - Baha Y. Demir
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
| | - Arumugam Madhan Kumar
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
| | - Ahmed F. Abdelaal
- Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
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A Bibliometric Analysis of Electrospun Nanofibers for Dentistry. J Funct Biomater 2022; 13:jfb13030090. [PMID: 35893458 PMCID: PMC9326643 DOI: 10.3390/jfb13030090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Electrospun nanofibers have been widely used in dentistry due to their excellent properties, such as high surface area and high porosity, this bibliometric study aimed to review the application fields, research status, and development trends of electrospun nanofibers in different fields of dentistry in recent years. All of the data were obtained from the Web of Science from 2004 to 2021. Origin, Microsoft Excel, VOSviewer, and Carrot2 were used to process, analyze, and evaluate the publication year, countries/region, affiliations, authors, citations, keywords, and journal data. After being refined by the year of publication, document types and research fields, a total of 378 publications were included in this study, and an increasing number of publications was evident. Through linear regression calculations, it is predicted that the number of published articles in 2022 will be 66. The most published journal about electrospun dental materials is Materials Science & Engineering C-Materials for Biological Applications, among the six core journals identified, the percent of journals with Journal Citation Reports (JCR) Q1 was 60%. A total of 17.60% of the publications originated from China, and the most productive institution was the University of Sheffield. Among all the 1949 authors, the most productive author was Marco C. Bottino. Most electrospun dental nanofibers are used in periodontal regeneration, and Polycaprolactone (PCL) is the most frequently used material in all studies. With the global upsurge in research on electrospun dental materials, bone regeneration, tissue regeneration, and cell differentiation and proliferation will still be the research hotspots of electrospun dental materials in recent years. Extensive collaboration and citations among authors, institutions and countries will also reach a new level.
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Wei X, Zhang Y, Feng H, Cao X, Ding Q, Lu Z, Zhang G. Bio-Tribology and Corrosion Behaviors of a Si- and N-Incorporated Diamond-like Carbon Film: A New Class of Protective Film for Ti6Al4V Artificial Implants. ACS Biomater Sci Eng 2022; 8:1166-1180. [PMID: 35195404 DOI: 10.1021/acsbiomaterials.1c01370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ti6Al4V artificial implants are increasingly demanded for addressing human dysfunction caused by an aging population and major diseases. However, they are restricted due to the release of vanadium and aluminum ions in the process of corrosion and wear. This work is aimed to provide a protective film for Ti6Al4V artificial implants, and then, a Si-incorporated diamond-like carbon (Si-DLC) film and Si- and N-incorporated DLC (SiN-DLC) film were deposited on the surface of Ti6Al4V by plasma-enhanced chemical vapor deposition. Results suggest that the thickness of the as-deposited DLC film is approximately 2 μm, and the SiN-DLC film shows the lowest surface roughness (53.0 ± 3.6 nm) compared with the Ti6Al4V and DLC films. The above DLC film possesses high mechanical properties compared with Ti6Al4V, and the SiN-DLC film shows the best resistance to plastic deformation. In addition, the DLC film exhibits high adhesive strength (>13 N) with Ti6Al4V, which is a prerequisite for service in liquid environments. Whether in SBF solution or SBF + BSA solution, the friction coefficient and wear rate of the above DLC film are much lower than those of Ti6Al4V, and the SiN-DLC film displays the optimal tribological properties (0.072 and 1.82 × 10-7 mm3·N-1·m-1, respectively). Moreover, Si-DLC and SiN-DLC films possess similar corrosion resistance but are far better than Ti6Al4V. Cytotoxicity test results show that the SiN-DLC film can significantly improve cell viability and promote cell proliferation to a certain extent. Consequently, the SiN-DLC film is a protective film with more potential for artificial implants.
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Affiliation(s)
- Xubing Wei
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yujue Zhang
- Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China.,Beijing Advanced Innovation Centre for Materials Genome Engineering, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Haiyan Feng
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xueqian Cao
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Qi Ding
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Zhibin Lu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangan Zhang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Krawczyk J, Gallardo-Moreno AM, González-Martín ML. Effect of Spontaneous and Water-Based Passivation on Components and Parameters of Ti6Al4V (ELI Grade) Surface Tension and Its Wettability by an Aqueous Solution of Sucrose Ester Surfactants. Molecules 2021; 27:molecules27010179. [PMID: 35011408 PMCID: PMC8746691 DOI: 10.3390/molecules27010179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/23/2021] [Accepted: 12/26/2021] [Indexed: 11/16/2022] Open
Abstract
Solid wettability is especially important for biomaterials and implants in the context of microbial adhesion to their surfaces. This adhesion can be inhibited by changes in biomaterial surface roughness and/or its hydrophilic–hydrophobic balance. The surface hydrophilic–hydrophobic balance can be changed by the specifics of the surface treatment (proper conditions of surface preparation) or adsorption of different substances. From the practical point of view, in systems that include biomaterials and implants, the adsorption of compounds characterized by bacteriostatic or bactericidal properties is especially desirable. Substances that are able to change the surface properties of a given solid as a result of their adsorption and possess at least bacteriostatic properties include sucrose ester surfactants. Thus, in our studies the analysis of a specific surface treatment effect (proper passivation conditions) on a biomaterial alloy’s (Ti6Al4V ELI, Grade 23) properties was performed based on measurements of the contact angles of water, formamide and diiodomethane. In addition, the changes in the studied solid surface’s properties resulting from the sucrose monodecanoate (SMD) and sucrose monolaurate (SML) molecules’ adsorption at the solid–water interface were also analyzed. For the analysis, the values of the contact angles of aqueous solutions of SMD and SML were measured at 293 K, and the surface tensions of the aqueous solutions of studied surfactants measured earlier were tested. From the above-mentioned tests, it was found that water environment significantly influences the components and parameters of Ti6Al4V ELI’s surface tension. It also occurred that the addition of both SMD and SML to water (separately) caused a drop in the water contact angle on Ti6Al4V ELI’s surface. However, the sucrose monolaurate surfactant is characterized by a slightly better tendency towards adsorption at the solid–water interface in the studied system compared to sucrose monodecanoate. Additionally, based on the components and parameters of Ti6Al4V ELI’s surface tension calculated from the proper values of components and parameters of model liquids, it was possible to predict the wettability of Ti6Al4V ELI using the aqueous solutions of SMD and SML at various concentrations in the solution.
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Affiliation(s)
- Joanna Krawczyk
- Department of Interfacial Phenomena, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, 20-031 Lublin, Poland
- Correspondence: ; Tel.: +48-(81)-537-5649
| | - Amparo María Gallardo-Moreno
- Department of Applied Physics, Faculty of Science, Extremadura University, Avda. de Elvas, s/n, 06006 Badajoz, Spain; (A.M.G.-M.); (M.L.G.-M.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 06006 Badajoz, Spain
- University Institute of Extremadura Sanitary Research (INUBE), 06006 Badajoz, Spain
| | - María Luisa González-Martín
- Department of Applied Physics, Faculty of Science, Extremadura University, Avda. de Elvas, s/n, 06006 Badajoz, Spain; (A.M.G.-M.); (M.L.G.-M.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 06006 Badajoz, Spain
- University Institute of Extremadura Sanitary Research (INUBE), 06006 Badajoz, Spain
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Improvement of the Corrosion Resistance of Biomedical Zr-Ti Alloys Using a Thermal Oxidation Treatment. METALS 2020. [DOI: 10.3390/met10020166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Binary Zr-Ti alloys spontaneously develop a tenacious and compact oxide layer when their fresh surface is exposed either to air or to aqueous environments. Electrochemical impedance spectroscopy (EIS) analysis of Zr-45Ti, Zr-25Ti, and Zr-5Ti exposed to simulated physiological solutions at 37 °C evidences the formation of a non-sealing bilayer oxide film that accounts for the corrosion resistance of the materials. Unfortunately, these oxide layers may undergo breakdown and stable pitting corrosion regimes at anodic potentials within the range of those experienced in the human body under stress and surgical conditions. Improved corrosion resistance has been achieved by prior treatment of these alloys using thermal oxidation in air. EIS was employed to measure the corrosion resistance of the Zr-Ti alloys in simulated physiological solutions of a wide pH range (namely 3 ≤ pH ≤ 8) at 37 °C, and the best results were obtained for the alloys pre-treated at 500 °C. The formation of the passivating oxide layers in simulated physiological solution was monitored in situ using scanning electrochemical microscopy (SECM), finding a transition from an electrochemically active surface, characteristic of the bare metal, to the heterogeneous formation of oxide layers behaving as insulating surfaces towards electron transfer reactions.
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Chen J, Shi X, Zhu Y, Chen Y, Gao M, Gao H, Liu L, Wang L, Mao C, Wang Y. On-demand storage and release of antimicrobial peptides using Pandora's box-like nanotubes gated with a bacterial infection-responsive polymer. Theranostics 2020; 10:109-122. [PMID: 31903109 PMCID: PMC6929614 DOI: 10.7150/thno.38388] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/03/2019] [Indexed: 01/08/2023] Open
Abstract
Background: Localized delivery of antimicrobial agents such as antimicrobial peptides (AMPs) by a biomaterial should be on-demand. Namely, AMPs should be latent and biocompatible in the absence of bacterial infection, but released in an amount enough to kill bacteria immediately in response to bacterial infection. Methods: To achieve the unmet goal of such on-demand delivery, here we turned a titanium implant with titania nanotubes (Ti-NTs) into a Pandora's box. The box was loaded with AMPs (HHC36 peptides, with a sequence of KRWWKWWRR) inside the nanotubes and "closed" (surface-modified) with a pH-responsive molecular gate, poly(methacrylic acid) (PMAA), which swelled under normal physiological conditions (pH 7.4) but collapsed under bacterial infection (pH ≤ 6.0). Thus, the PMAA-gated Ti-NTs behaved just like a Pandora's box. The box retarded the burst release of AMPs under physiological conditions because the gate swelled to block the nanotubes opening. However, it was opened to release AMPs to kill bacteria immediately when bacterial infection occurred to lowering the pH (and thus made the gate collapse). Results: We demonstrated such smart excellent bactericidal activity against a panel of four clinically important bacteria, including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, methicillin-resistant Staphylococcus aureus. In addition, this box was biocompatible and could promote the osteogenic differentiation of human mesenchymal stem cells. Both in vitro and in vivo studies confirmed the smart "on-demand" bactericidal activity of the Pandora's box. The molecularly gated Pandora's box design represents a new strategy in smart drug delivery.
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Affiliation(s)
- Junjian Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- School of Biomedical Science and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Xuetao Shi
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510641, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Ye Zhu
- Department of Chemistry and Biochemistry, University of Oklahoma, Stephenson Life Sciences Research Center Norman, OK, 73019, USA
| | - Yunhua Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Meng Gao
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510006, China
| | - Huichang Gao
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- School of Biomedical Science and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Lei Liu
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510641, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510006, China
| | - Lin Wang
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510641, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510006, China
| | - Chuanbin Mao
- Department of Chemistry and Biochemistry, University of Oklahoma, Stephenson Life Sciences Research Center Norman, OK, 73019, USA
| | - Yingjun Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
- School of Biomedical Science and Engineering, South China University of Technology, Guangzhou 510006, China
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou 510006, China
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10
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Modification of Titanium Implant and Titanium Dioxide for Bone Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1077:355-368. [PMID: 30357698 DOI: 10.1007/978-981-13-0947-2_19] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Bone tissue engineering using titanium (Ti) implant and titanium dioxide (TiO2) with their modification is gaining increasing attention. Ti has been adopted as an implant material in dental and orthopedic fields due to its superior properties. However, it still requires modification in order to achieve robust osteointegration between the Ti implant and surrounding bone. To modify the Ti implant, numerous methods have been introduced to fabricate porous implant surfaces with a variety of coating materials. Among these, plasma spraying of hydroxyapatite (HA) has been the most commonly used with commercial success. Meanwhile, TiO2 nanotubes have been actively studied as the coating material for implants, and promising results have been reported about improving osteogenic activity around implants recently. Also porous three-dimensional constructs based on TiO2 have been proposed as scaffolding material with high biocompatibility and osteoconductivity in large bone defects. However, the use of the TiO2 scaffolds in load-bearing environment is somewhat limited. In order to optimize the TiO2 scaffolds, studies have tried to combine various materials with TiO2 scaffolds including drug, mesenchymal stem cells, Al2O3-SiO2 solid and HA. This article will shortly introduce the properties of Ti and Ti-based implants with their modification, and review the progress of bone tissue engineering using the TiO2 nanotubes and scaffolds.
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11
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Zhou X, Fu X, Chen H, Xiao Z, Min L, Zhou Y, Zhu X, Zhang K, Tu C, Zhang X. Evaluation and regulation of the corrosion resistance of macroporous titanium scaffolds with bioactive surface films for biomedical applications. J Mater Chem B 2019. [DOI: 10.1039/c8tb03359e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A three-layer bioactive film on porous titanium was constructed and evaluated for its corrosion resistance via electrochemical analysis.
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Affiliation(s)
- Xingyu Zhou
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xi Fu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Hongjie Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Li Min
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Yong Zhou
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Kai Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Chongqi Tu
- Department of Orthopaedics
- West China Hospital of Sichuan University
- Chengdu 610041
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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12
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Long-term durability of orthodontic mini-implants. Odontology 2017; 106:208-214. [DOI: 10.1007/s10266-017-0319-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/08/2017] [Indexed: 11/26/2022]
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13
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Biological and Mechanical Effects of Micro-Nanostructured Titanium Surface on an Osteoblastic Cell Line In vitro and Osteointegration In vivo. Appl Biochem Biotechnol 2017; 183:280-292. [PMID: 28321783 DOI: 10.1007/s12010-017-2444-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 02/20/2017] [Indexed: 10/19/2022]
Abstract
Hybrid micro-nanostructure implant surface was produced on titanium (Ti) surface by acid etching and anodic oxidation to improve the biological and mechanical properties. The biological properties of the micro-nanostructure were investigated by simulated body fluid (SBF) soaking test and MC3T3-E1 cell co-culture experiment. The cell proliferation, spreading, and bone sialoprotein (BSP) gene expression were examined by MTT, SEM, and reverse transcription-polymerase chain reaction (RT-PCR), respectively. In addition, the mechanical properties were evaluated by instrumented nanoindentation test and friction-wear test. Furthermore, the effect of the micro-nanostructure surface on implant osteointegration was examined by in vivo experiment. The results showed that the formation of bone-like apatite was accelerated on the micro-nanostructured Ti surface after immersion in simulated body fluid, and the proliferation, spreading, and BSP gene expression of the MC3T3-E1 cells were also upregulated on the modified surface. The micro-nanostructured Ti surface displayed decreased friction coefficient, stiffness value, and Young's modulus which were much closer to those of the cortical bone, compared to the polished Ti surface. This suggested much better mechanical match to the surrounding bone tissue of the micro-nanostructured Ti surface. Furthermore, the in vivo animal experiment showed that after implantation in the rat femora, the micro-nanostructure surface displayed higher bonding strength between bone tissues and implant; hematoxylin and eosin (H&E) staining suggested that much compact osteoid tissue was observed at the interface of Micro-nano-Ti-bone than polished Ti-bone interface after implantation. Based on these results mentioned above, it was concluded that the improved biological and mechanical properties of the micro-nanostructure endowed Ti surface with good biocompatibility and better osteointegration, implying the enlarged application of the micro-nanostructure surface Ti implants in future.
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14
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Lin N, Liu Q, Zou J, Li D, Yuan S, Wang Z, Tang B. Surface damage mitigation of Ti6Al4V alloy via thermal oxidation for oil and gas exploitation application: characterization of the microstructure and evaluation of the surface performance. RSC Adv 2017. [DOI: 10.1039/c6ra28421c] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ti6Al4V alloy is a promising candidate for petroleum tube. However, low surface hardness, high/unstable friction coefficient, severe adhesive wear and susceptibility to galling are harmful for the direct application of Ti6Al4V alloy in oil/gas well.
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Affiliation(s)
- Naiming Lin
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
- Shanxi Key Laboratory of Material Strength and Structure Impact
| | - Qiang Liu
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Jiaojuan Zou
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Dali Li
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Shuo Yuan
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Zhihua Wang
- Shanxi Key Laboratory of Material Strength and Structure Impact
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Bin Tang
- Research Institute of Surface Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- China
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15
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Hao J, Li Y, Wang X, Zhang X, Li B, Li H, Zhou L, Yin F, Liang C, Wang H. Corrosion resistance and biological properties of a micro–nano structured Ti surface consisting of TiO2 and hydroxyapatite. RSC Adv 2017. [DOI: 10.1039/c7ra01175j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A micro–nanostructured Ti surface consisting of TiO2 and HA was prepared by MAO, and showed improved corrosion resistance and biological properties.
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Affiliation(s)
- Jingzu Hao
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Ying Li
- Stomatological Hospital
- Tianjin Medical University
- Tianjin 300070
- China
| | - Xiaolin Wang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Xianlin Zhang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Baoe Li
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Haipeng Li
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Linxi Zhou
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Fuxing Yin
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Chunyong Liang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
| | - Hongshui Wang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- China
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16
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Bodelón OG, Clemente C, Alobera MA, Aguado-Henche S, Escudero ML, Alonso MCG. Osseointegration of TI6Al4V dental implants modified by thermal oxidation in osteoporotic rabbits. Int J Implant Dent 2016; 2:18. [PMID: 27747710 PMCID: PMC5005616 DOI: 10.1186/s40729-016-0051-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/07/2016] [Indexed: 02/05/2023] Open
Abstract
Background In this work, the effect of the heat treatment on Ti6Al4V implants and topical administration of growth hormone to address a better osseointegration in osteoporotic patients has been analysed. Methods The osseointegration process of Ti6Al4V implants modified by oxidation treatment at 700 °C for 1 h and the influence of local administration of growth hormone (GH) in osteoporotic female rabbits after 15 and 30 days of implantation have been studied. Bone response was analysed through densitometric and histomorphometric studies. Characterization of the surface was provided by scanning electron microscopy. Results The oxidation treatment promotes the formation of an oxide scale grown on the Ti6Al4V implants that alters the nanoroughness of the surface. Bone mineral density (BMD) increases from 0.347 ± 0.014 (commercial) to 0.383 ± 0.012 g cm−2 (modified), and bone-to-implant contact (BIC) goes from 48.01 ± 14.78 (commercial) to 55.37 ± 15.31 (modified) after 30 days of implantation. Conclusions The oxidation treatment on the Ti6Al4V dental implants enhances the early bone formation at the longest periods of implantation. No significant differences in the BMD and BIC results in healthy and osteoporotic rabbits were revealed with respect to the local administration of GH in the implantation site.
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Affiliation(s)
- Oscar G Bodelón
- Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Madrid, Spain
| | - Celia Clemente
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - Miguel Angel Alobera
- Stomatology Department IV, Complutense University of Madrid (UCM), Madrid, Spain
| | - Soledad Aguado-Henche
- Department of Human Anatomy and Embryology, School of Medicine, University of Alcalá, Alcalá de Henares, Spain
| | - María Lorenza Escudero
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain
| | - María Cristina García Alonso
- Department of Surface Engineering, Corrosion and Durability, National Center for Metallurgical Research (CENIM), CSIC, Avda. Gregorio del Amo 8, 28040, Madrid, Spain.
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17
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Adhikari SP, Pant HR, Mousa HM, Lee J, Kim HJ, Park CH, Kim CS. Synthesis of high porous electrospun hollow TiO2 nanofibers for bone tissue engineering application. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2015.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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18
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Crespo L, Hierro-Oliva M, Barriuso S, Vadillo-Rodríguez V, Montealegre MÁ, Saldaña L, Gomez-Barrena E, González-Carrasco JL, González-Martín ML, Vilaboa N. On the interactions of human bone cells with Ti6Al4V thermally oxidized by means of laser shock processing. Biomed Mater 2016; 11:015009. [DOI: 10.1088/1748-6041/11/1/015009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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19
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Lieblich M, Barriuso S, Multigner M, González-Doncel G, González-Carrasco J. Thermal oxidation of medical Ti6Al4V blasted with ceramic particles: Effects on the microstructure, residual stresses and mechanical properties. J Mech Behav Biomed Mater 2016; 54:173-84. [DOI: 10.1016/j.jmbbm.2015.09.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/25/2015] [Accepted: 09/26/2015] [Indexed: 11/24/2022]
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20
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Thermally oxidized titania nanotubes enhance the corrosion resistance of Ti6Al4V. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:677-689. [DOI: 10.1016/j.msec.2015.10.056] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/24/2015] [Accepted: 10/20/2015] [Indexed: 12/31/2022]
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21
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Pradhan D, Wren A, Misture S, Mellott N. Investigating the structure and biocompatibility of niobium and titanium oxides as coatings for orthopedic metallic implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:918-26. [DOI: 10.1016/j.msec.2015.09.059] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/03/2015] [Accepted: 09/13/2015] [Indexed: 11/28/2022]
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22
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Bai Y, Deng Y, Zheng Y, Li Y, Zhang R, Lv Y, Zhao Q, Wei S. Characterization, corrosion behavior, cellular response and in vivo bone tissue compatibility of titanium-niobium alloy with low Young's modulus. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 59:565-576. [PMID: 26652409 DOI: 10.1016/j.msec.2015.10.062] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/02/2015] [Accepted: 10/20/2015] [Indexed: 11/17/2022]
Abstract
β-Type titanium alloys with a low elastic modulus are a potential strategy to enhance bone remodeling and to mitigate the concern over the risks of osteanabrosis and bone resorption caused by stress shielding, when used to substitute irreversibly impaired hard tissue. Hence, in this study, a Ti-45Nb alloy with low Young's modulus and high strength was developed, and microstructure, mechanical properties, corrosion behaviors, cytocompatibility and in vivo osteo-compatibility of the alloy were systematically investigated for the first time. The results of mechanical tests showed that Young's modulus of the Ti-Nb alloy was reduced to about 64.3GPa (close to human cortical bone) accompanied with higher tensile strength and hardness compared with those of pure Ti. Importantly, the Ti-Nb alloy exhibited superior corrosion resistance to Ti in different solutions including SBF, MAS and FAAS (MAS containing NaF) media. In addition, the Ti-Nb alloy produced no deleterious effect to L929 and MG-63 cells, and cells performed excellent cell attachment onto Ti-Nb surface, indicating a good in vitro cytocompatibility. In vivo evaluations indicated that Ti-Nb had comparable bone tissue compatibility to Ti determined from micro-CT and histological evaluations. The Ti-Nb alloy with an elasticity close to human bone, thus, could be suitable for orthopedic/dental applications.
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Affiliation(s)
- Yanjie Bai
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China; Department of Stomatology, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Science, Beijing 100012, China
| | - Yi Deng
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China; Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yunfei Zheng
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China
| | - Yongliang Li
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China
| | - Ranran Zhang
- Department of Stomatology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Yalin Lv
- Department of Stomatology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Qiang Zhao
- Department of Stomatology, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Science, Beijing 100012, China.
| | - Shicheng Wei
- Department of Oral and Maxillofacial Surgery, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China; Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
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23
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Jin X, Gao L, Liu E, Yu F, Shu X, Wang H. Microstructure, corrosion and tribological and antibacterial properties of Ti–Cu coated stainless steel. J Mech Behav Biomed Mater 2015; 50:23-32. [DOI: 10.1016/j.jmbbm.2015.06.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 05/25/2015] [Accepted: 06/02/2015] [Indexed: 11/24/2022]
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24
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Butt A, Hamlekhan A, Patel S, Royhman D, Sukotjo C, Mathew MT, Shokuhfar T, Takoudis C. A Novel Investigation of the Formation of Titanium Oxide Nanotubes on Thermally Formed Oxide of Ti-6Al-4V. J ORAL IMPLANTOL 2015; 41:523-31. [DOI: 10.1563/aaid-joi-d-13-00340] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Traditionally, titanium oxide (TiO2) nanotubes (TNTs) are anodized on Ti-6Al-4V alloy (Ti-V) surfaces with native TiO2 (amorphous TiO2); subsequent heat treatment of anodized surfaces has been observed to enhance cellular response. As-is bulk Ti-V, however, is often subjected to heat treatment, such as thermal oxidation (TO), to improve its mechanical properties. Thermal oxidation treatment of Ti-V at temperatures greater than 200°C and 400°C initiates the formation of anatase and rutile TiO2, respectively, which can affect TNT formation. This study aims at understanding the TNT formation mechanism on Ti-V surfaces with TO-formed TiO2 compared with that on as-is Ti-V surfaces with native oxide. Thermal oxidation–formed TiO2 can affect TNT formation and surface wettability because TO-formed TiO2 is expected to be part of the TNT structure. Surface characterization was carried out with field emission scanning electron microscopy, energy dispersive x-ray spectroscopy, water contact angle measurements, and white light interferometry. The TNTs were formed on control and 300°C and 600°C TO-treated Ti-V samples, and significant differences in TNT lengths and surface morphology were observed. No difference in elemental composition was found. Thermal oxidation and TO/anodization treatments produced hydrophilic surfaces, while hydrophobic behavior was observed over time (aging) for all samples. Reduced hydrophobic behavior was observed for TO/anodized samples when compared with control, control/anodized, and TO-treated samples. A method for improved surface wettability and TNT morphology is therefore discussed for possible applications in effective osseointegration of dental and orthopedic implants.
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Affiliation(s)
- Arman Butt
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
| | - Azhang Hamlekhan
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, Mich
| | - Sweetu Patel
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
| | - Dmitry Royhman
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Cortino Sukotjo
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, Ill
| | - Mathew T. Mathew
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Orthopedics, Rush University Medical Center, Chicago, Ill
| | - Tolou Shokuhfar
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, Mich
| | - Christos Takoudis
- Department of Bioengineering, University of Illinois at Chicago, Chicago, Ill
- Institute of Biomaterials, Tribocorrosion and Nanomedicine (IBTN), Chicago, Ill
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Ill
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25
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Bueno-Vera JA, Torres-Zapata I, Sundaram PA, Diffoot-Carlo N, Vega-Olivencia CA. Electrochemical characterization of MC3T3-E1 cells cultured on γTiAl and Ti-6Al-4V alloys. Bioelectrochemistry 2015; 106:316-27. [PMID: 26145813 DOI: 10.1016/j.bioelechem.2015.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 06/17/2015] [Accepted: 06/21/2015] [Indexed: 11/28/2022]
Abstract
Electrochemical impedance spectroscopy (EIS) was used to study the behavior of MC3T3-E1 cells cultured in an αMEM+FBS solution on two Ti-based alloys (Ti-6Al-4V and γTiAl) for 4, 7 and 14 days. EIS measurements were carried out at an open-circuit potential in a 1 mHz to 100 kHz frequency range. Results indicate a general increase in impedance on the Ti alloy surfaces with cells as a function of time. Bode plots indicate changes corresponding to the passive oxide film, adsorption of proteins and cell tissue on surfaces with the passage of time. Normal cellular activity based on the polygonal morphology, with long and fine cytoplasmic prolongations of the cells on Ti-6Al-4V and γTiAl was observed from SEM images. Similarly, mineralization nodules corresponding to cell differentiation associated with the osseogenetic process were observed confirmed by Alizarin Red S staining. Immunofluorescence analysis to detect the presence of collagen Type I showed an increase in the segregation of collagen as a function of time. The impedance values obtained from EIS testing are indicative of the corrosion protection offered to the Ti alloy substrates by the cell layer. This study shows that γTiAl has better corrosion resistance than that of Ti-6Al-4V in the αMEM+FBS environment in the presence of MC3T3-E1 cells.
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Affiliation(s)
- J A Bueno-Vera
- Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, PR 00680, USA
| | - I Torres-Zapata
- Department of Biology, University of Puerto Rico, Mayaguez, PR 00680, USA
| | - P A Sundaram
- Department of Mechanical Engineering, University of Puerto Rico, Mayaguez, PR 00680, USA.
| | - N Diffoot-Carlo
- Department of Biology, University of Puerto Rico, Mayaguez, PR 00680, USA
| | - C A Vega-Olivencia
- Department of Chemistry, University of Puerto Rico, Mayaguez, PR 00680, USA
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26
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In situ electrochemical study of the interaction of cells with thermally treated titanium. Biointerphases 2015; 10:021006. [PMID: 25947388 DOI: 10.1116/1.4919778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Micromotion and fretting wear between bone and Ti-based alloys in stem and dental implants breaks the passive film and exposes the metal to the action of the complex surrounding medium, generating substantial amounts of debris and continuous Ti ion release. In this work, oxidation treatments at low temperatures (277 °C, 5 h) have been used to promote the formation of wear-corrosion resistant titanium oxide on the Ti surface. The objective of this paper has been the study of the influence of live cells on the protectiveness of the oxide formed at these low temperatures. The interaction of cells with the modified surface has been studied by scanning electron microscopy, electrochemical impedance spectroscopy, polarization curves, and x-ray photoelectron spectroscopy (XPS). The chemical composition of the thermally treated Ti surface is mainly TiO2 as anatase-rich titanium dioxide with a low concentration of hydroxyl groups and a low mean nanoroughness that could promote good cell adhesion. The electrochemical results indicate that the cells alter the overall resistance of the thermally treated Ti surfaces by decreasing the oxide resistance with time. At the same time, the anodic current increases, which is associated with cathodic control, and is probably due to the difficulty of access of oxygen to the Ti substrate. XPS reveals the presence of proteins on the surface of the treated specimens in contact with the cells and a decrease in the Ti signal associated with the extracellular matrix on the surface and the reduction of the oxide thickness.
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27
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Gül EB, Atala MH, Eşer B, Polat NT, Asiltürk M, Gültek A. Effects of coating with different ceromers on the impact strength, transverse strength and elastic modulus of polymethyl methacrylate. Dent Mater J 2015; 34:379-87. [PMID: 25904101 DOI: 10.4012/dmj.2014-203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the mechanical properties of polymethyl methacrylate (PMMA) after coating with different ceromers. For transverse strength and modulus of elasticity tests, specimens of 65×10×2.5 mm dimensions were prepared (5 groups, n=10). For impact strength test, specimens of 60×7.5×4 mm dimensions were prepared (5 groups, n=10). Test group specimens were coated with one of four different types of ceromers, and specimens in the control group were not coated. After specimens were tested for transverse and impact strengths, the data were analyzed with Kruskal-Wallis and Conover post hoc tests (p<0.05). GLYMOTEOS-TiO2 and A174-TEOS significantly increased the transverse strength of PMMA. All ceromers caused a statistically significant increase in the elastic modulus of PMMA. While GLYMO-TEOS-ZrO2 significantly decreased the impact strength, the other ceromers did not cause any statistically significant difference in impact strength. Coating with ceromers substantially improved the mechanical properties of PMMA.
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Affiliation(s)
- Esma Başak Gül
- Department of Prosthodontics, Faculty of Dentistry, İnönü University
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28
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Seo JH, Leesungbok R, Ahn SJ, Park SJ, Lee MH, Lee SW. Effect of titanium surface microgrooves and thermal oxidation onin vitroosteoblast responses. ACTA ACUST UNITED AC 2015. [DOI: 10.4047/jkap.2015.53.3.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jin-Ho Seo
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Richard Leesungbok
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Su-Jin Ahn
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Su-Jung Park
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - Myung-Hyun Lee
- Green Ceramics Division, Korea Institute of Ceramic Engineering and Technology, Seoul, Republic of Korea
| | - Suk Won Lee
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
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29
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Wang Z, Xing M, Ojo O. Mussel-inspired ultrathin film on oxidized Ti–6Al–4V surface for enhanced BMSC activities and antibacterial capability. RSC Adv 2014. [DOI: 10.1039/c4ra08322a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
To improve the biocompatibility and antibacterial capability of thermally oxidized Ti–6Al–4V, an ultrathin alginate/chitosan film that contains nano-silver was constructed through mussel-inspired poly(dopamine).
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Affiliation(s)
- Ziyuan Wang
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg, Canada
| | - Malcolm Xing
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg, Canada
- Manitoba Institute of Child Health
- Winnipeg, Canada
| | - Olanrewaju Ojo
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg, Canada
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Patel SB, Hamlekhan A, Royhman D, Butt A, Yuan J, Shokuhfar T, Sukotjo C, Mathew MT, Jursich G, Takoudis CG. Enhancing surface characteristics of Ti–6Al–4V for bio-implants using integrated anodization and thermal oxidation. J Mater Chem B 2014; 2:3597-3608. [DOI: 10.1039/c3tb21731k] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Implications of Surface and Bulk Properties of Abutment Implants and Their Degradation in the Health of Periodontal Tissue. MATERIALS 2013; 6:5951-5966. [PMID: 28788432 PMCID: PMC5452748 DOI: 10.3390/ma6125951] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/04/2013] [Accepted: 12/05/2013] [Indexed: 11/17/2022]
Abstract
The aim of the current review was to investigate the implications of the surface and bulk properties of abutment implants and their degradation in relation to periodontal health. The success of dental implants is no longer a challenge for dentistry. The scientific literature presents several types of implants that are specific for each case. However, in cases of prosthetics components, such as abutments, further research is needed to improve the materials used to avoid bacterial adhesion and enhance contact with epithelial cells. The implanted surfaces of the abutments are composed of chemical elements that may degrade under different temperatures or be damaged by the forces applied onto them. This study showed that the resulting release of such chemical elements could cause inflammation in the periodontal tissue. At the same time, the surface characteristics can be altered, thus favoring biofilm development and further increasing the inflammation. Finally, if not treated, this inflammation can cause the loss of the implant.
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Bolat G, Mareci D, Chelariu R, Izquierdo J, González S, Souto R. Investigation of the electrochemical behaviour of TiMo alloys in simulated physiological solutions. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.09.116] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Improvement of the biomedical properties of titanium using SMAT and thermal oxidation. Colloids Surf B Biointerfaces 2013; 116:658-65. [PMID: 24269052 DOI: 10.1016/j.colsurfb.2013.10.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 10/23/2013] [Accepted: 10/24/2013] [Indexed: 10/26/2022]
Abstract
Titanium and its alloys are excellent candidates for biomedical implant. However, they exhibit relatively poor tribological properties. In this study, a two-step treatment including surface mechanical attrition treatment (SMAT) combined with thermal oxidation process has been developed to improve the tribological properties and biocompatibility of Ti. Ti after two-step treatment shows excellent wear-resistance and biocompatibility among all Ti samples, which can be ascribed to the highest surface energy, well crystallinity of rutile layer on its surface. Overall, the two-step treatment is a prospective method to produce excellent biomedical Ti materials.
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34
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Electrochemical characterization of ZrTi alloys for biomedical applications. Part 2: The effect of thermal oxidation. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.05.093] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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35
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Krząkała A, Służalska K, Dercz G, Maciej A, Kazek A, Szade J, Winiarski A, Dudek M, Michalska J, Tylko G, Osyczka AM, Simka W. Characterisation of bioactive films on Ti–6Al–4V alloy. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.12.081] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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36
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Saebnoori E, Shahrabi T, Jafarian H, Ghaffari M. Changes in the resistance to corrosion of thermally passivated titanium aluminide during exposure to sodium chloride solution. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1255-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zuldesmi M, Waki A, Kuroda K, Okido M. High Osteoconductive Surface of Pure Titanium by Hydrothermal Treatment. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jbnb.2013.43036] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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Cimpean A, Mitran V, Ciofrangeanu CM, Galateanu B, Bertrand E, Gordin DM, Iordachescu D, Gloriant T. Osteoblast cell behavior on the new beta-type Ti–25Ta–25Nb alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1554-63. [DOI: 10.1016/j.msec.2012.04.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 11/16/2011] [Accepted: 04/20/2012] [Indexed: 10/28/2022]
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39
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Kim HJ, Park IK, Kim JH, Cho CS, Kim MS. Gas foaming fabrication of porous biphasic calcium phosphate for bone regeneration. Tissue Eng Regen Med 2012. [DOI: 10.1007/s13770-012-0022-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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40
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Barranco V, Escudero M, García-Alonso M. Influence of the microstructure and topography on the barrier properties of oxide scales generated on blasted Ti6Al4V surfaces. Acta Biomater 2011; 7:2716-25. [PMID: 21382529 DOI: 10.1016/j.actbio.2011.02.040] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 02/25/2011] [Accepted: 02/28/2011] [Indexed: 11/26/2022]
Abstract
The long-term interfacial bond between an implant and bone may be improved by creating a rough surface on the implant in order to increase the surface area available for bone/implant apposition. A natural consequence of surface roughening is an increase in metal ion release, which is itself a surface dominated process. Based on this fact, the aim of this work is to study the influence of the microstructure and topography on the barrier properties of oxide scales thermally generated at 700 °C for 1h on Ti6Al4V surfaces after blasting with Al(2)O(3) particles (coarse) or SiO(2) and ZrO(2) particles (fine). The microstructural and topographical characterization of the thermally treated blasted surfaces has been studied by means of scanning electron microscopy coupled with energy dispersive X-ray analysis, contact profilometry and X-ray diffraction. The barrier properties and corrosion behaviour of the oxide layers have been studied by means of electrochemical impedance spectroscopy (EIS) in Hank's solution. Thermal treatment at 700 °C for 1h promotes the formation of oxide scales with different morphologies and crystalline structures depending on the degree of deformation of the blasted surface. The oxide scale grown on the finely blasted sample has a pine needle-like morphology which is mainly formed of anatase TiO(2). In contrast, the oxide scale grown on the coarsely blasted sample has a globular morphology formed mainly of rutile TiO(2). The differences in morphology, i.e. fine or coarse, of the oxide scales influence the corrosion response of the blasted thermally treated samples in Hank's solution. The EIS results permit evaluation of the different oxide scales from the capacitance and resistance values obtained in the high-frequency region and show a good correlation between the morphology and barrier properties. Oxidation treatment at 700 °C for 1h of Ti6Al4V samples coarsely blasted with Al(2)O(3) improves the corrosion behaviour due to an increase in the thickness of a compact, ordered and more structurally stable oxide scale. This is due to the globular morphology of the rutile (TiO(2)) structure maintaining an average surface roughness suitable for optimal osseo-integration with long-term interfacial bonding between the implant and bone.
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41
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Yamamoto O, Alvarez K, Kashiwaya Y, Fukuda M. Surface characterization and biological response of carbon-coated oxygen-diffused titanium having different topographical surfaces. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:977-987. [PMID: 21365295 DOI: 10.1007/s10856-011-4267-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 02/17/2011] [Indexed: 05/30/2023]
Abstract
The materials (C-ODTi) with different topographical surfaces that possess interstitial oxygen atoms into the host titanium lattice and an upper nanometric surface layer of anatase-TiO(2) covered by a carbon thin layer were fabricated in this study. The carbon thin layer on the surface of C-ODTi was composed of amorphous carbon and nano-graphite crystals. In vitro tests, using human bone marrow-derived mesenchymal cells (hBMCs), were performed to check cytotoxicity, examining in particular cell morphology, cell proliferation, cell differentiation, and mineralization capability. After 10 days of culture a higher degree of cell viability was observed on the surface of C-ODTi with an abraded surface. We also observed that hBMCs cultured in direct contact with C-ODTi maintained their capability to express alkaline phosphatase activity (ALP) and formed mineralized nodules similar to the control cultures. Our results demonstrate that the carbon layer coating on the surface of C-ODTi possess better biological response than commercially pure titanium (cp Ti), which was evidenced by the higher proliferation rates of osteoblasts, higher osteo-differentiation and a higher mineralization capability.
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Affiliation(s)
- Osamu Yamamoto
- Center for Geo-Environmental Science, Graduate School of Engineering and Resource Science, Akita University, 1-1 Tegata Gakuen-machi, Akita 010-8502, Japan.
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Wang YB, Zheng YF, Wei SC, Li M. In vitro study on Zr-based bulk metallic glasses as potential biomaterials. J Biomed Mater Res B Appl Biomater 2010; 96:34-46. [DOI: 10.1002/jbm.b.31725] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Functional Coatings or Films for Hard-Tissue Applications. MATERIALS 2010; 3:3994-4050. [PMID: 28883319 PMCID: PMC5445792 DOI: 10.3390/ma3073994] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2010] [Revised: 06/23/2010] [Accepted: 07/07/2010] [Indexed: 12/21/2022]
Abstract
Metallic biomaterials like stainless steel, Co-based alloy, Ti and its alloys are widely used as artificial hip joints, bone plates and dental implants due to their excellent mechanical properties and endurance. However, there are some surface-originated problems associated with the metallic implants: corrosion and wear in biological environments resulting in ions release and formation of wear debris; poor implant fixation resulting from lack of osteoconductivity and osteoinductivity; implant-associated infections due to the bacterial adhesion and colonization at the implantation site. For overcoming these surface-originated problems, a variety of surface modification techniques have been used on metallic implants, including chemical treatments, physical methods and biological methods. This review surveys coatings that serve to provide properties of anti-corrosion and anti-wear, biocompatibility and bioactivity, and antibacterial activity.
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44
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Kumar S, Narayanan TS, Ganesh Sundara Raman S, Seshadri S. Surface modification of CP-Ti to improve the fretting-corrosion resistance: Thermal oxidation vs. anodizing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2010. [DOI: 10.1016/j.msec.2010.03.024] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Bello SA, de Jesús-Maldonado I, Rosim-Fachini E, Sundaram PA, Diffoot-Carlo N. In vitro evaluation of human osteoblast adhesion to a thermally oxidized gamma-TiAl intermetallic alloy of composition Ti-48Al-2Cr-2Nb (at.%). JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1739-1750. [PMID: 20162332 PMCID: PMC2871339 DOI: 10.1007/s10856-010-4016-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 01/28/2010] [Indexed: 05/28/2023]
Abstract
Ti-48Al-2Cr-2Nb (at.%) (gamma-TiAl), a gamma titanium aluminide alloy originally designed for aerospace applications, appears to have excellent potential as implant material. Thermal treatment of gamma-TiAl renders this alloy extremely corrosion resistant in vitro, which could improve its biocompatibility. In this study, the surface oxides produced by thermal oxidation (at 500 degrees C, and at 800 degrees C for 1 h in air) on gamma-TiAl were characterized by X-ray photoelectron spectroscopy (XPS). hFOB 1.19 cell adhesion on thermally oxidized gamma-TiAl was examined in vitro by a hexosaminidase assay, scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM) after 1, 7 and 14 days. Ti-6Al-4V surfaces were used for comparison. Hexosaminidase assay data and CLSM analysis of focal contacts and cytoskeleton organization showed no differences in cell attachment on autoclaved and both heat-treated gamma-TiAl surfaces at the different time points. SEM images showed well organized multi-layers of differentiated cells adhered on thermally oxidized gamma-TiAl surfaces at day 14. Unexpectedly, thermally oxidized Ti-6Al-4V surfaces oxidized at 800 degrees C exhibited cytotoxic effects on hFOB 1.19 cells. Our results indicate that thermal oxidation of gamma-TiAl seems to be a promising method to generate highly corrosion resistant and biocompatible surfaces for implant applications.
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Affiliation(s)
- Samir A Bello
- Department of Biology, University of Puerto Rico, Call Box 9000, Mayagüez Campus, Mayagüez, PR 00681-9000, USA
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46
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Bajgai MP, Parajuli DC, Park SJ, Chu KH, Kang HS, Kim HY. In vitro bioactivity of sol-gel-derived hydroxyapatite particulate nanofiber modified titanium. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:685-694. [PMID: 19851842 DOI: 10.1007/s10856-009-3902-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Accepted: 10/05/2009] [Indexed: 05/28/2023]
Abstract
A chemically-etched titanium surface was modified by electrospinning a sol-gel-derived hydroxyapatite (HAp) that was subjected to calcination within the temperature range of 200-1400 degrees C in the normative atmospheric condition. After heat treatment, crystal structures of the filmed titanium oxide and HAp on the titanium's surface were identified using wide-angle X-ray diffraction. A highly porous layer of HAp was found to have formed on the oxidized titanium surfaces. The surfaces of three different samples; (1) electrospun HAp, (2) HAp calcined at 600 degrees C, and (3) HAp calcined at 800 degrees C, were investigated for their ability to foster promotion, proliferation, and differentiation of human osteoblasts (HOB) (in the 9th passage) in vitro up to 6 days. Among the three samples, cells cultured on the HAp calcined at 800 degrees C titanium surfaces displayed the best results with regard to adhesion, growth, and proliferation of HOB. This novel method for fabrication of titanium substrates would provide a promising improvement for titanium-based medical devices over the current standards, which lack such substrates. These titanium substrates explicitly provide enhanced HOB proliferation in terms of both desired surface properties and their produced bulk quantity.
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Affiliation(s)
- Madhab Prasad Bajgai
- Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea
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47
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Bajgai MP, Parajuli DC, Park SJ, Chu KH, Kang HS, Kim HY. Hydroxyapatite Particulate Nanofiber Modified Titanium: In-Vitro Bioactivity. ACTA ACUST UNITED AC 2010. [DOI: 10.4303/bda/d110131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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48
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Yamamoto O, Alvarez K, Kikuchi T, Fukuda M. Fabrication and characterization of oxygen-diffused titanium for biomedical applications. Acta Biomater 2009; 5:3605-15. [PMID: 19523543 DOI: 10.1016/j.actbio.2009.06.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 05/13/2009] [Accepted: 06/05/2009] [Indexed: 10/20/2022]
Abstract
Although titanium has been successful as an orthopedic or dental implant material, performance problems still persist concerning implant-bone interfacial bonding strength. In this study a novel oxygen-diffused titanium (ODTi), fabricated by introducing oxygen into the titanium crystal lattice by thermal treatment, was investigated. The fabricated material is the result of a surface modification made on commercially pure titanium (cp Ti) previously coated with poly(vinyl alcohol) (PVA) by means of a thermal treatment performed at 700 degrees C in an ultra-pure argon atmosphere. The thermal treatment at 700 degrees C led to the formation of an anatase TiO(2) film on the cp Ti surface and a concentration gradient of oxygen into titanium. The surface of the fabricated ODTi consisted of an outer nanometric layer of anatase TiO(2) and an inner nanometric layer of Ti(2)O(x) (x<1) in which the oxygen is in solid solution with the titanium metal. It was found that ODTi possesses in vitro apatite formation ability after being soaked into simulated body fluid (SBF) solution. This apatite formation ability is attributed to the presence of the anatase TiO(2) outermost surface layer and to abundant hydroxyl groups (-OH) formed on the ODTi surface after immersion in SBF.
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49
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Leinenbach C, Eifler D. Influence of oxidation treatment on fatigue and fatigue-induced damage of commercially pure titanium. Acta Biomater 2009; 5:2810-9. [PMID: 19394905 DOI: 10.1016/j.actbio.2009.03.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Revised: 02/20/2009] [Accepted: 03/24/2009] [Indexed: 11/18/2022]
Abstract
In this investigation, the cyclic deformation behaviour of commercially pure titanium was characterized in axial stress controlled constant amplitude and load increase tests, as well as in rotating bending tests. The influence of different clinically relevant surface treatments (polishing, thermal and anodic oxidizing) on the fatigue behaviour was investigated. All tests were realized in oxygen-saturated Ringer's solution. The cyclic deformation behaviour was characterized by mechanical hysteresis measurements. In addition, the change of the free corrosion potential and the corrosion current during the fatigue tests in simulated physiological media indicated such types of surface damage as slip bands, microcracks and oxide film ablation. Microstructural changes on the specimen surfaces were examined by scanning electron microscopy.
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Affiliation(s)
- C Leinenbach
- EMPA-Swiss Federal Laboratories for Materials Testing and Research, Laboratory of Joining and Interface Technology, Ueberlandstrasse 129, CH-8600 Duebendorf, Switzerland.
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50
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Kumar S, Narayanan TS, Raman SGS, Seshadri S. Thermal oxidation of CP-Ti: Evaluation of characteristics and corrosion resistance as a function of treatment time. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2009.03.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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