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Metals
Special Issues
Corrosion and Surface Modification of Metallic Biomaterials
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Corrosion and Surface Modification of Metallic Biomaterials

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Corrosion and Protection".

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 14091

Special Issue Editors

Prof. Dr. Han-Cheol Choe

E-Mail Website
Guest Editor
Chosun University, Dept Dent Mat, Coll Dent, Gwangju, South Korea
Interests: corrosion; mechanical properties; heat treatment; materials; thin films; surface modification; Ti alloys; dental materials; thin films and nanotechnology; 3D printing; PVD; wet coating
Special Issues, Collections and Topics in MDPI journals
Dr. Mosab Kaseem

E-Mail Website
Guest Editor
Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
Interests: corrosion matter of protective metallic materials via plasma electrolysis; surface modification via organic–inorganic conjugation; electrochemical interpretation per equivalent circuit model; plasticity control and mechanical modeling of nanostructured crystalline solid; biodegradable polymers; development of bioactive coatings on metallic materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metallic biomaterials have considered to be one of the most important academy and industry fields that can strongly contribute to major advances in human health. The corrosion resistance of an implant metallic material, however, influences its functionality and durability and is a key factor controlling biocompatibility. Surface modification of metallic biomaterials would offer the ability to improve corrosion and biological responses through changes in the metal’s characteristics, such as surface chemistry, topography, energy, and charge, while still maintaining the bulk properties of the metallic implant.

In this Special Issue, we are inviting submissions exploring the latest advances in the field of corrosion and surface modification of metallic biomaterials. Topics include, but are not limited to, surface modifications for enhanced corrosion and biological responses, new metallic biomaterials, coatings, bio-functionalization, osseointegration, and new trends in metallic biomaterials. All manuscripts will be peer reviewed and those accepted will be published immediately online as a Special Issue entitled “Corrosion and Surface Modification of Metallic Biomaterials”. This special issue of Metals invites innovative contributions in terms of full research papers, letters, and reviews from leading groups around the world.

Prof. Dr. Han-Cheol Choe
Dr. Mosab Kaseem
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Biomaterials
  • Bioimplants
  • Biodegradable metals
  • Surface Modification
  • Ceramics
  • Corrosion
  • Coatings
  • Bone formation
  • Osteointegration
  • Applications

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Published Papers (5 papers)

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Research

12 pages, 4395 KiB  
Article
Fabrication of a Protective Hybrid Coating Composed of TiO2, MoO2, and SiO2 by Plasma Electrolytic Oxidation of Titanium
by Tehseen Zehra, Mosab Kaseem, Shakhawat Hossain and Young-Gun Ko
Metals 2021, 11(8), 1182; https://doi.org/10.3390/met11081182 - 25 Jul 2021
Cited by 35 | Viewed by 3126
Abstract
This work examined the influence of dual incorporation of MoO2 and SiO2 on the corrosion behavior of pure titanium treated via plasma electrolytic oxidation (PEO). To achieve this purpose, pure titanium substrate was treated via PEO in an alkaline-molybdate electrolyte without [...] Read more.
This work examined the influence of dual incorporation of MoO2 and SiO2 on the corrosion behavior of pure titanium treated via plasma electrolytic oxidation (PEO). To achieve this purpose, pure titanium substrate was treated via PEO in an alkaline-molybdate electrolyte without and with SiO2 nanoparticles. The microstructural observation revealed that the addition of SiO2 nanoparticles into the electrolyte during PEO helped to seal the structural defects in the PEO coating so that a rougher, thicker, and denser coating rich in SiO2 was successfully obtained. From the electrochemical measurements in a 3.5 wt.% NaCl solution, the TiO2-MoO2-SiO2 hybrid coating exhibited a higher corrosion resistance than the TiO2-MoO2 coating which was attributed to the sealing effect by stable SiO2 nanoparticles. Full article
(This article belongs to the Special Issue Corrosion and Surface Modification of Metallic Biomaterials)
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15 pages, 4730 KiB  
Article
A Combined Strategy to Improve the Performance of Dental Alloys Using a New CoCrNbMoZr Alloy with Mn and Si Coated via an Anodic Oxidation Procedure
by Florentina Gina Ionascu, Mariana Prodana, Florentina Golgovici and Ioana Demetrescu
Metals 2021, 11(7), 1017; https://doi.org/10.3390/met11071017 - 24 Jun 2021
Cited by 2 | Viewed by 1717
Abstract
The aim of the paper is based on a combined approach to improve dental alloy performance using a new Ni-free Co–Cr composition with Mo, Nb and Zr and coated with an anodic oxidation film. The coated and uncoated samples were surface characterized by [...] Read more.
The aim of the paper is based on a combined approach to improve dental alloy performance using a new Ni-free Co–Cr composition with Mo, Nb and Zr and coated with an anodic oxidation film. The coated and uncoated samples were surface characterized by performing SEM (scanning electronic microscopy), XRD (X-rays diffraction) contact angle measurements and corrosion studies with open circuit potential, potentiodynamic polarization and EIS (impedance electrochemical spectroscopy) procedures. The SEM equipment with an EDX (Energy-dispersive X-ray spectroscopy) module indicated the sample morphology and the XRD investigations established the formation of the oxides. The electrochemical procedures were performed in Ericsson artificial saliva for coated samples in various conditions. Based on all the experiments, including the decrease in the hydrophobic character of the uncoated samples and the decrease in the hydrophilic values of the anodized alloys, the improved performance of the coated samples was established as a conclusion. Full article
(This article belongs to the Special Issue Corrosion and Surface Modification of Metallic Biomaterials)
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16 pages, 10978 KiB  
Article
Effects of Incorporating Β-Tricalcium Phosphate with Reaction Sintering into Mg-Based Composites on Degradation and Mechanical Integrity
by Kai Narita, Sachiko Hiromoto, Equo Kobayashi and Tatsuo Sato
Metals 2021, 11(2), 227; https://doi.org/10.3390/met11020227 - 28 Jan 2021
Cited by 10 | Viewed by 2180
Abstract
For applications of biodegradable load-bearing implants, we incorporated 10 or 20 vol% β-tricalcium phosphate (β-TCP) into Mg-based composites through reaction sintering in the spark plasma sintering process. We previously reported that the evolved microstructure enhanced mechanical properties before degradation and modified in vitro [...] Read more.
For applications of biodegradable load-bearing implants, we incorporated 10 or 20 vol% β-tricalcium phosphate (β-TCP) into Mg-based composites through reaction sintering in the spark plasma sintering process. We previously reported that the evolved microstructure enhanced mechanical properties before degradation and modified in vitro degradation behaviors. In this study, immersion tests in physiological saline and subsequent compression tests in the air were conducted to investigate the effects of degradation on mechanical integrity. In the immersion tests, Mg/β-TCP composites showed no visible disintegration of sintered particles due to interfacial strength enhanced by reaction sintering. Local corrosion was observed in the Mg matrix adjacent to the reaction products. In addition, Mg/10% β-TCP showed dense degradation products of Mg(OH)2 compared with Mg and Mg/20% β-TCP. Those degradation behaviors resulted in reducing the effective load transfer from the Mg matrix to the reaction products as reinforcement. The yield strength decreased by 18.1% for Mg/10% β-TCP and 70.9% for Mg/20% β-TCP after six days of immersion. These results can give a broad view of designing spark plasma sintered Mg/bioceramic composites with the consideration of mechanical integrity. Full article
(This article belongs to the Special Issue Corrosion and Surface Modification of Metallic Biomaterials)
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13 pages, 3988 KiB  
Article
Acceleration of Bone Formation and Adhesion Ability on Dental Implant Surface via Plasma Electrolytic Oxidation in a Solution Containing Bone Ions
by Mosab Kaseem and Han-Cheol Choe
Metals 2021, 11(1), 106; https://doi.org/10.3390/met11010106 - 7 Jan 2021
Cited by 24 | Viewed by 3317
Abstract
The present study examined the in vitro and in vivo bone formation and adhesion ability on the surface of a titanium dental implant made by plasma electrolytic oxidation (PEO) in electrolytes containing bioactive ions. To achieve this goal, screw-shaped fabricated Ti-6Al-4V alloy implants [...] Read more.
The present study examined the in vitro and in vivo bone formation and adhesion ability on the surface of a titanium dental implant made by plasma electrolytic oxidation (PEO) in electrolytes containing bioactive ions. To achieve this goal, screw-shaped fabricated Ti-6Al-4V alloy implants were processed via PEO using an electrolyte solution containing calcium (Ca), phosphorous (P), magnesium (Mg), zinc (Zn), strontium (Sr), silicon (Si), and manganese (Mn) species. The screw implants doped with bioactive elements via PEO were placed in rabbit tibia, and the results were compared to the sand-blasted Ti-6Al-4V alloy implants. At eight-week post-surgery, there was no significant difference in the values of removal torque between sand-blasted and PEO-treated implants. However, it was observed that the PEO treatment of dental implants led to the formation of more periphery bone as compared to the case of sand-blasted implants. Accordingly, the PEO-treated implants have the potential to be used as promising materials for dental applications. Full article
(This article belongs to the Special Issue Corrosion and Surface Modification of Metallic Biomaterials)
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14 pages, 3713 KiB  
Article
Use of Impedance Spectroscopy for the Characterization of In-Vitro Osteoblast Cell Response in Porous Titanium Bone Implants
by Mercè Giner, Alberto Olmo, Miguel Hernández, Paloma Trueba, Ernesto Chicardi, Ana Civantos, María Ángeles Vázquez, María-José Montoya-García and Yadir Torres
Metals 2020, 10(8), 1077; https://doi.org/10.3390/met10081077 - 10 Aug 2020
Cited by 5 | Viewed by 2431
Abstract
The use of titanium implants with adequate porosity (content, size and morphology) could solve the stress shielding limitations that occur in conventional titanium implants. Experiments to assess the cellular response (adhesion, proliferation and differentiation of osteoblasts) on implants are expensive, time-consuming and delicate. [...] Read more.
The use of titanium implants with adequate porosity (content, size and morphology) could solve the stress shielding limitations that occur in conventional titanium implants. Experiments to assess the cellular response (adhesion, proliferation and differentiation of osteoblasts) on implants are expensive, time-consuming and delicate. In this work, we propose the use of impedance spectroscopy to evaluate the growth of osteoblasts on porous titanium implants. Osteoblasts cells were cultured on fully-dense and 40 vol.% porous discs with two ranges of pore size (100–200 μm and 355–500 μm) to study cell viability, proliferation, differentiation (Alkaline phosphatase activity) and cell morphology. The porous substrates 40 vol.% (100–200 µm) showed improved osseointegration response as achieved more than 80% of cell viability and higher levels of Cell Differentiation by Alkaline Phosphatase (ALP) at 21 days. This cell behavior was further evaluated observing an increase in the impedance modulus for all study conditions when cells were attached. However, impedance levels were higher on fully-dense due to its surface properties (flat surface) than porous substrates (flat and pore walls). Surface parameters play an important role on the global measured impedance. Impedance is useful for characterizing cell cultures in different sample types. Full article
(This article belongs to the Special Issue Corrosion and Surface Modification of Metallic Biomaterials)
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