Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.9
2.6
Journals
Metals
Special Issues
Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials
share announcement

Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials

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

Deadline for manuscript submissions: closed (15 November 2024) | Viewed by 12125

Special Issue Editors

Dr. Silvia Spriano

E-Mail Website
Guest Editor
Department of Applied Science and Technology, Politecnico di Torino, 10126 Torino, Italy
Interests: titanium alloys; magnesium alloys; surfaces; biodegradation; functionalization; polyphenols; essential oils
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Takayoshi Nakano

E-Mail Website
Guest Editor
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita 565-0871, Osaka, Japan
Interests: additive manufacturing; matal 3d printing; biomaterials; bone substitute; crystallographic texture; deformation mechanism; regenerative medicine; biomimetic materials; implantology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleague,

Viable alternatives to traditional materials are urgently needed. First, this is strictly related to climate change and the depletion of the Earth’s finite resources. Second, new functionalities are requested for metals and they can be achieved by coupling bio-based compounds to traditional metals. ‘Bio-based’ materials and compounds come from renewable biomass sources: plants, animals, marine, and forestry materials. Other possible sources include waste or by-products from the food industry. Coupling can occur through surface functionalization with a molecular layer, thin film or thick coatings, or composites. Bio-based materials often exhibit lower toxicity than traditional metals, alongside other novel characteristics, such as biodegradability. This is a new and interesting frontier for metal-based materials with the fast development of new alloys. The material processing and manufacturing of final products using bio-based materials are not inherently more sustainable than traditional materials, because the environmental impact of the entire production process must be considered via life cycle assessments.

The EU predicts and supports a steady growth in the uptake of bio-based materials: research can give a fundamental basis to this innovation and metals can be successfully integrated into this process.

In this Special Issue, we welcome articles that focus on:

  • Metal-based materials with the addition of biobased materials (single compounds or extracts with a biological origin such as oils, chitosan, gelatin, algae, by-products, and/or waste from the food industry). Functionalized or coated metals and metal-matrix composites are included.
  • New compositions or processing of biodegradable metals (such as magnesium, zinc, and iron alloys).
  • Coatings or surface modifications for modulation of the corrosion rate and degradation of biodegradable metals.
  • Methods for the characterization of biodegradable metals.
  • LCA and LCC evaluation of the production and processing of bio-based and biodegradable metals.

Dr. Silvia Spriano
Prof. Dr. Takayoshi Nakano
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

  • ferrous alloys
  • non-ferrous alloys
  • functionalization
  • coatings
  • surface modification
  • biodegradation
  • corrosion rate
  • composites
  • bio-based materials
  • waste

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

13 pages, 3419 KiB  
Article
Behavior of Two Dental Alloys as Ingot and Cast Crown in Artificial Saliva
by Anca Porumb, Santiago Brito-Garcia, Julia Claudia Mirza-Rosca and Anca Fratila
Metals 2024, 14(4), 398; https://doi.org/10.3390/met14040398 - 28 Mar 2024
Cited by 1 | Viewed by 1654
Abstract
Dental alloys based on Co or Ni are commonly used in dentistry to fabricate dental prostheses, including crowns, bridges, and partial dentures, but even though both alloys are highly biocompatible, some patients may experience allergic reactions to nickel. This comparative study investigated the [...] Read more.
Dental alloys based on Co or Ni are commonly used in dentistry to fabricate dental prostheses, including crowns, bridges, and partial dentures, but even though both alloys are highly biocompatible, some patients may experience allergic reactions to nickel. This comparative study investigated the behavior of two dental alloys in the oral cavity, analyzing their microstructure, corrosion behavior, elastic modulus, hardness, and tensile strength for ingot and cast crowns. The microstructures of commercial Ni-Cr and Co-Cr samples were analyzed using optical microscopy, scanning electron microscopy (SEM), and X-Ray Diffraction (XRD); elastic modulus and corrosion behavior were determined after immersing the samples in artificial saliva. Ni-Cr alloy has a corrosion potential more negative than Co-Cr alloy; this means that the first alloy is more likely to undergo corrosion than the second alloy. Ni-Cr sample with a higher elastic modulus is generally more rigid and less flexible than Co-Cr sample with a lower elastic modulus. The analyzed Co-Cr alloy has a higher resistance to corrosion, resulting in a more esthetically pleasing and longer-lasting restoration. The Co-Cr alloy also has a lower density than the Ni-Cr alloy, which, combined with its strength-to-weight ratio, makes them ideal for partial dentures where the prosthesis needs to be lightweight. The Co-Cr alloy is more flexible than the Ni-Cr alloy, making it stronger and more durable. This makes them an ideal choice for dental prostheses that need to withstand high stresses and loads. Full article
(This article belongs to the Special Issue Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials)
►▼ Show Figures

Figure 1

16 pages, 3371 KiB  
Article
Functionalization of Ti6Al4V Alloy with Polyphenols: The Role of the Titanium Surface Features and the Addition of Calcium Ions on the Adsorption Mechanism
by Camilla Reggio, Jacopo Barberi, Sara Ferraris and Silvia Spriano
Metals 2023, 13(8), 1347; https://doi.org/10.3390/met13081347 - 27 Jul 2023
Cited by 10 | Viewed by 2955
Abstract
Functionalization of medical devices with biomolecules is a key strategy to control implant outcomes, for instance, polyphenols can produce fast osseointegration and reduce both the infection risk and inflammatory response. This paper is designed to evaluate the role of calcium ions and surface [...] Read more.
Functionalization of medical devices with biomolecules is a key strategy to control implant outcomes, for instance, polyphenols can produce fast osseointegration and reduce both the infection risk and inflammatory response. This paper is designed to evaluate the role of calcium ions and surface features in surface functionalization with a red pomace extract. An in-depth investigation of the binding mechanism between surfaces and polyphenols was also performed. A smooth Ti6Al4V alloy was used as a control substrate and compared with a bioactive and nanotextured chemical-treated Ti6Al4V alloy. Solutions with and without the addition of calcium ions were used for functionalization. The results showed that polyphenols were adsorbed in all cases, but in a larger amount in the presence of calcium ions. The functionalized surfaces were hydrophilic (contact angles in the range of 45–15°) and had isoelectric points at pH 2.8–3.1. The acidic hydroxyl groups on the chemically treated titanium alloy favored the chemisorption of complex compounds of flavonoids and condensed tannins with calcium ions, through a bridging mechanism, and made desorption sensitive to pH. On the smooth surface, the absence of reactive functional groups led to a lower amount of adsorbed molecules and a physisorption mechanism. Selective physisorption of phenolic acids was supposed to be predominant on the smooth surface in the presence of calcium ions in the solution. Full article
(This article belongs to the Special Issue Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials)
►▼ Show Figures

Figure 1

18 pages, 3080 KiB  
Article
Enhancing the Antibacterial Properties and Biocompatibility of Ti-Cu Alloy by Roughening and Anodic Oxidation
by Yanchun Xie, Ming Lu, Xinru Mao, Hailong Yu and Erlin Zhang
Metals 2022, 12(10), 1726; https://doi.org/10.3390/met12101726 - 14 Oct 2022
Cited by 6 | Viewed by 2099
Abstract
Although Ti-Cu alloys have been shown to possess good antibacterial properties, they are still biologically inert. In this study, sandblasting and acid etching combined with anodic oxidation were applied to roughen the surface as well as to form a TiO2/CuO/Cu2 [...] Read more.
Although Ti-Cu alloys have been shown to possess good antibacterial properties, they are still biologically inert. In this study, sandblasting and acid etching combined with anodic oxidation were applied to roughen the surface as well as to form a TiO2/CuO/Cu2O composite film, which would benefit both the antibacterial properties and the biocompatibility. The surface morphology, the phase composition, and the physicochemical properties were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Electrochemical testing and inductively coupled plasma spectrometry (ICP) were used to determine the corrosion resistance and Cu ion release, the plate counting method was used to evaluate the antibacterial performance, and the CCK-8 method was used to evaluate the cytocompatibility. It was revealed that a rough surface with densely porous double layer composed of TiO2/CuO/Cu2O was produced on Ti-Cu alloy surface after the combined surface modification, which enhanced the corrosion resistance significantly. The plate counting results demonstrated that the modified sample had strong long-term antibacterial performance (antibacterial rate > 99%), which was attributed to the formation of TiO2/CuO/Cu2O composite film. The cell compatibility evaluation results indicated that the surface modification improved the cytocompatibility. It was demonstrated that the combined modification provided very strong antibacterial ability and good cytocompatiblity, potentially making it a good candidate surface modification technique for Ti-Cu alloy for biomedical applications. Full article
(This article belongs to the Special Issue Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials)
►▼ Show Figures

Figure 1

20 pages, 5379 KiB  
Article
The Influence of Copper Content on the Elastic Modulus and Antibacterial Properties of Ti-13Nb-13Zr-xCu Alloy
by Xinru Mao, Anqi Shi, Renxian Wang, Jingjun Nie, Gaowu Qin, Dafu Chen and Erlin Zhang
Metals 2022, 12(7), 1132; https://doi.org/10.3390/met12071132 - 1 Jul 2022
Cited by 9 | Viewed by 2419
Abstract
Device-related infection or inflammatory and stress shield are still the main problems faced by titanium alloy implants for long-term implantation application; therefore, it is of great significance to design an alloy with low elastic modulus and good antibacterial properties as well as good [...] Read more.
Device-related infection or inflammatory and stress shield are still the main problems faced by titanium alloy implants for long-term implantation application; therefore, it is of great significance to design an alloy with low elastic modulus and good antibacterial properties as well as good biocompatibility. In this paper, Ti-13Nb-13Zr-xCu(x = 3, 7 wt.%) alloys were designed and prepared to reveal the influence of Cu content on the elastic modulus and antibacterial property. X-ray diffractometer, metallographic microscope, scanning electron microscope, and transmission electron microscope were used to study the phase transformation, microstructure, mechanical properties, antibacterial properties, and cytotoxicity of the alloys. The experimental results have demonstrated that the antibacterial performance and the elastic modulus were significantly improved but the corrosion resistance deteriorated with the increase of the copper content. Ti-13Nb-13Zr-3Cu with a low modulus of 73 GPa and an antibacterial rate of over 90% against Staphylococcus aureus (S. aureus) exhibited great potential as a candidate for implant titanium in the future. Full article
(This article belongs to the Special Issue Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials)
►▼ Show Figures

Figure 1

13 pages, 5217 KiB  
Article
Construction of a Rough Surface with Submicron Ti2Cu Particle on Ti-Cu Alloy and Its Effect on the Antibacterial Properties and Cell Biocompatibility
by Yanchun Xie, Ming Lu, Shenshen Cui, Hailong Yu, Ling Wang, Hongdan Ke and Erlin Zhang
Metals 2022, 12(6), 1008; https://doi.org/10.3390/met12061008 - 13 Jun 2022
Cited by 7 | Viewed by 2379
Abstract
Titanium-copper (Ti-Cu) alloy is an advanced antibacterial material with excellent mechanical properties, thermodynamic stability, corrosion resistance and biocompatibility. Sandblasting and acid-etching was applied to the Ti-3Cu alloy to construct a rough surface with Ti2Cu phase on the surface in order to [...] Read more.
Titanium-copper (Ti-Cu) alloy is an advanced antibacterial material with excellent mechanical properties, thermodynamic stability, corrosion resistance and biocompatibility. Sandblasting and acid-etching was applied to the Ti-3Cu alloy to construct a rough surface with Ti2Cu phase on the surface in order to improve the antibacterial properties and the osseointegration. The phase constitutes and the physical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and confocal laser scanning microscope (CLSM), and the surface chemical properties were analyzed by X-ray photoelectron spectroscopy (XPS) and electrochemical testing. The antibacterial property was assessed by the plate-count method and the cell compatibility was evaluated by the CCK-8 test in order to reveal the effect of surface characteristics on the antibacterial ability and bioactivity. The results demonstrated a rough and lamellar surface structure with many submicron Ti2Cu particles on the surface of Ti-3Cu, which could enhance the antibacterial ability and promote the cell proliferation and the initial adhesion of osteoblasts. However, the surface treatment also reduced the corrosion resistance and accelerated the Cu ion release. Full article
(This article belongs to the Special Issue Editorial Board Members’ Collection Series: Advanced Metallic Biomaterials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop