Special Issue "Corrosion Science in Biomedical Materials"
Deadline for manuscript submissions: 15 October 2020.
Interests: corrosion; electrochemistry; metal–electrolyte interfacial electrochemistry kinetics; electrochemical impedance spectroscopy
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
Manuscript Submission Information
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- Mg-based alloys
- Ti- based alloys
- high-entropy alloys
- degradation/corrosion mechanism
- electrochemical impedance spectroscopy
- hydrogene evolution