Special Issue "Corrosion Science in Biomedical Materials"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Corrosion and Materials Degradation".

Deadline for manuscript submissions: 15 October 2020.

Special Issue Editor

Assoc. Prof. Virginie Roche
Website
Guest Editor
Grenoble Alpes University, CNRS, LEPMI, F-38000, Grenoble, France
Interests: corrosion; electrochemistry; metal–electrolyte interfacial electrochemistry kinetics; electrochemical impedance spectroscopy

Special Issue Information

Dear Colleagues,

Biodegradable implants are considered to be of great interest for biomedical applications because they can avoid the needs for implant removal surgery and the long-term harmful effects of permanent implants. Bone fractures sometimes require the use of reconstruction implants, which are usually removed after a certain period. The materials currently used for these implants may trigger various problems, especially concerning the removal surgery. Bio-resorbable materials are therefore investigated. Finally, we propose to examine at least three imperatives to optimize the life time of a bone implant: a) minimizing the mechanical stresses related to the differences in values of Young's moduli between the constituent materials of the implant and the bone; b) using biocompatible implants without toxic components such as V, Al, Ni, Cu, etc.; c) adjusting the bio-activity and the rate of corrosion, because there is an opposite tendency between the anti-corrosive properties and an acceptable and necessary implant bioactivity.

Another interesting field, corrosion for biomedical applications, concerns surgery tools. Surgical tools are designed for specific actions in specific types of surgery, and can have long lifespans. They can also become contaminated, however, due to the adherence of bacteria to the material, especially if there are corroded or worn areas where the adherence of deposits is facilitated by the inadequate or imperfect cleaning of surgical instruments. Such contamination can have a tremendous impact on patient health. High corrosion resistance under application-relevant conditions is a decisive criterion for the commercialization of new materials. The development of materials that are free of toxic elements with adequate corrosion resistance for medical tool applications is needed.

It is my pleasure to invite you to submit a manuscript to this Special Issue. Full papers, communications, and reviews are all welcome on the different alloys that are classically used as implants (e.g., titanium or magnesium alloys), Zr-based alloys for example for surgery tools, and more unusual alloys (e.g., mechanically or chemically modified alloys), investigating both bioactivity and corrosion properties. Great attention will be paid to the proposed mechanisms for the electrochemical kinetics of the investigated alloys.

Assoc. Prof. Virginie Roche
Guest Editor

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 papers will be 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.

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Keywords

  • Mg-based alloys
  • Ti- based alloys
  • high-entropy alloys
  • degradation/corrosion mechanism
  • electrochemical impedance spectroscopy
  • hydroxyapatite
  • bioactivity
  • hydrogene evolution

Published Papers (1 paper)

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Research

Open AccessArticle
Novel Coating to Minimize Corrosion of Glass-Ceramics for Dental Applications
Materials 2020, 13(5), 1215; https://doi.org/10.3390/ma13051215 - 08 Mar 2020
Abstract
The effect of a novel silicon carbide (SiC) coating on the chemical durability of a fluorapatite glass-ceramic veneer was investigated by examining weight loss and ion release levels. The hypothesis that this novel coating will exhibit significant corrosion resistance was tested. Inductively coupled [...] Read more.
The effect of a novel silicon carbide (SiC) coating on the chemical durability of a fluorapatite glass-ceramic veneer was investigated by examining weight loss and ion release levels. The hypothesis that this novel coating will exhibit significant corrosion resistance was tested. Inductively coupled plasma atomic emission spectrometer (ICP) was used for ion concentration determination and scanning electron microscopy (SEM) for surface morphology analyses. Samples were immersed in pH 10 and pH 2 buffer solutions to represent extreme conditions in the oral cavity. Analyses were done at 15 and 30 days. The SiC coated group demonstrated significant reduction in weight loss across all solutions and time points (p < 0.0001). Ion release analyses demonstrated either a marginally lower or a significantly lower release of ions for the SiC-coated disks. SEM analysis reveals planarization of surfaces by the SiC-coated group. The surfaces of coated samples were not as corroded as the non-coated samples, which is indicative of the protective nature of these coatings. In conclusion, SiC is a novel coating that holds promise for improving the performance of ceramic materials used for dental applications. Full article
(This article belongs to the Special Issue Corrosion Science in Biomedical Materials)
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