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Advances in Biomedical Alloys and Surface Modification
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Advances in Biomedical Alloys and Surface Modification

A special issue of Journal of Functional Biomaterials (ISSN 2079-4983). This special issue belongs to the section "Synthesis of Biomaterials via Advanced Technologies".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 4236

Special Issue Editors

Dr. Karolina Dudek

E-Mail Website
Guest Editor
Łukasiewicz Research Network - Institute of Ceramics and Building Materials, Cementowa 8, 31-983 Kraków, Poland
Interests: ceramics; surface modification; coatings; X-ray diffraction; nanomaterials; shape memory alloys
Prof. Dr. Rong-Chang Zeng

E-Mail Website
Guest Editor
College of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
Interests: magnesium alloy; corrosion; degradation; coating; intermetallic compound; biocompatibility; surface modification
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are currently organizing a Special Issue of the Journal of Functional Biomaterials, entitled “Advances in Biomedical Alloys and Surface Modification”.

The challenge for modern science is to produce new metallic biomaterials adapted to specific medical applications while at the same time meeting stringent biocompatibility standards. In addition to improving mechanical properties, modern biomedical alloys are also being developed to minimize the body's immune reactions. An important aspect of designing advanced biomedical alloys that meet the specific needs and requirements of medical applications is the modification of their surfaces. The creation of functional coatings on the surface of alloys significantly improves their effectiveness and biocompatibility in the context of regenerative medicine. Thanks to advanced technologies and research on surface engineering, it is possible to develop increasingly effective and advanced regenerative therapies.

In today's world, the search for new biomaterials is necessary to apply personalized regenerative medicine, improve the quality of life of patients, and accelerate convalescence processes. Therefore, the aim of the Special Issue is to present the results of research on the production and characterization of advanced biomedical alloys and their surface modification.

Dr. Karolina Dudek
Prof. Dr. Rong-Chang Zeng
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. Journal of Functional Biomaterials 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 2700 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

  • biomedical alloys
  • surface modification
  • biocompatibility
  • nanomaterials
  • porous biomaterials
  • surface functionalization

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Published Papers (4 papers)

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Research

22 pages, 6976 KiB  
Article
Comparison of Key Properties of Ag-TiO2 and Hydroxyapatite-Ag-TiO2 Coatings on NiTi SMA
by Karolina Dudek, Aleksandra Strach, Daniel Wasilkowski, Bożena Łosiewicz, Julian Kubisztal, Anna Mrozek-Wilczkiewicz, Patryk Zioła and Adrian Barylski
J. Funct. Biomater. 2024, 15(9), 264; https://doi.org/10.3390/jfb15090264 - 12 Sep 2024
Viewed by 798
Abstract
To functionalize the NiTi alloy, multifunctional innovative nanocoatings of Ag-TiO2 and Ag-TiO2 doped with hydroxyapatite were engineered on its surface. The coatings were thoroughly characterized, focusing on surface topography and key functional properties, including adhesion, surface wettability, biocompatibility, antibacterial activity, and [...] Read more.
To functionalize the NiTi alloy, multifunctional innovative nanocoatings of Ag-TiO2 and Ag-TiO2 doped with hydroxyapatite were engineered on its surface. The coatings were thoroughly characterized, focusing on surface topography and key functional properties, including adhesion, surface wettability, biocompatibility, antibacterial activity, and corrosion resistance. The electrochemical corrosion kinetics in a simulated body fluid and the mechanisms were analyzed. The coatings exhibited hydrophilic properties and were biocompatible with fibroblast and osteoblast cells while also demonstrating antibacterial activity against E. coli and S. epidermidis. The coatings adhered strongly to the NiTi substrate, with superior adhesion observed in the hydroxyapatite-doped layers. Conversely, the Ag-TiO2 layers showed enhanced corrosion resistance. Full article
(This article belongs to the Special Issue Advances in Biomedical Alloys and Surface Modification)
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16 pages, 5088 KiB  
Article
Comparative Study of Zirconium Nitride Multilayer Coatings: Crystallinity, In Vitro Oxidation Behaviour and Tribological Properties Deposited via Sputtering and Arc Deposition
by Julius C. Dohm, Susann Schmidt, Ana Laura Puente Reyna, Berna Richter, Antonio Santana and Thomas M. Grupp
J. Funct. Biomater. 2024, 15(8), 223; https://doi.org/10.3390/jfb15080223 - 13 Aug 2024
Viewed by 829
Abstract
This study aims to evaluate and compare the properties of a biomedical clinically established zirconium nitride (ZrN) multilayer coating prepared using two different techniques: pulsed magnetron sputtering and cathodic arc deposition. The investigation focuses on the crystalline structure, grain size, in-vitro oxidation behaviour [...] Read more.
This study aims to evaluate and compare the properties of a biomedical clinically established zirconium nitride (ZrN) multilayer coating prepared using two different techniques: pulsed magnetron sputtering and cathodic arc deposition. The investigation focuses on the crystalline structure, grain size, in-vitro oxidation behaviour and tribological performance of these two coating techniques. Experimental findings demonstrate that the sputter deposition process resulted in a distinct crystalline structure and smaller grain size compared to the arc deposition process. Furthermore, in vitro oxidation caused oxygen to penetrate the surface of the sputtered ZrN top layer to a depth of 700 nm compared to 280 nm in the case of the arc-deposited coating. Finally, tribological testing revealed the improved wear rate of the ZrN multilayer coating applied by sputter deposition. Full article
(This article belongs to the Special Issue Advances in Biomedical Alloys and Surface Modification)
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15 pages, 7467 KiB  
Article
Electrophoretic Deposition of Chitosan Coatings on the Porous Titanium Substrate
by Julia Flesińska, Magdalena Szklarska, Izabela Matuła, Adrian Barylski, Sylwia Golba, Julia Zając, Maciej Gawlikowski, Przemysław Kurtyka, Barbara Ilnicka and Grzegorz Dercz
J. Funct. Biomater. 2024, 15(7), 190; https://doi.org/10.3390/jfb15070190 - 9 Jul 2024
Viewed by 1266
Abstract
Medicine is looking for solutions to help implant patients recover more smoothly. The porous implants promote osteointegration, thereby providing better stabilization. Introducing porosity into metallic implants enhances their biocompatibility and facilitates osteointegration. The introduction of porosity is also associated with a reduction in [...] Read more.
Medicine is looking for solutions to help implant patients recover more smoothly. The porous implants promote osteointegration, thereby providing better stabilization. Introducing porosity into metallic implants enhances their biocompatibility and facilitates osteointegration. The introduction of porosity is also associated with a reduction in Young’s modulus, which reduces the risk of tissue outgrowth around the implant. However, the risk of chronic inflammation remains a concern, necessitating the development of coatings to mitigate adverse reactions. An interesting biomaterial for such modifications is chitosan, which has antimicrobial, antifungal, and osteointegration properties. In the present work, a porous titanium biomaterial was obtained by powder metallurgy, and electrophoretic deposition of chitosan coatings was used to modify its surface. This study investigated the influence of ethanol content in the deposition solution on the quality of chitosan coatings. The EPD process facilitates the control of coating thickness and morphology, with higher voltages resulting in thicker coatings and increased pore formation. Ethanol concentration in the solution affects coating quality, with higher concentrations leading to cracking and peeling. Optimal coating conditions (30 min/10 V) yield high-quality coatings, demonstrating excellent cell viability and negligible cytotoxicity. The GIXD and ATR-FTIR analysis confirmed the presence of deposited chitosan coatings on Ti substrates. The microstructure of the chitosan coatings was examined by scanning electron microscopy. Biological tests showed no cytotoxicity of the obtained materials, which allows for further research and the possibility of their use in medicine. In conclusion, EPD offers a viable method for producing chitosan-based coatings with controlled properties for biomedical applications, ensuring enhanced patient outcomes and implant performance. Full article
(This article belongs to the Special Issue Advances in Biomedical Alloys and Surface Modification)
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22 pages, 55272 KiB  
Article
Anodic Production and Characterization of Biomimetic Oxide Layers on Grade 4 Titanium for Medical Applications
by Delfina Nowińska, Patrycja Osak, Joanna Maszybrocka and Bożena Łosiewicz
J. Funct. Biomater. 2024, 15(7), 180; https://doi.org/10.3390/jfb15070180 - 29 Jun 2024
Viewed by 969
Abstract
Biomaterials are the basis for the development of medicine because they allow safe contact with a living organism. The aim of this work was to produce innovative oxide layers with a microporous structure on the surface of commercially pure titanium Grade 4 (CpTi [...] Read more.
Biomaterials are the basis for the development of medicine because they allow safe contact with a living organism. The aim of this work was to produce innovative oxide layers with a microporous structure on the surface of commercially pure titanium Grade 4 (CpTi G4) and to characterize their properties as drug carriers. The anodization of the CpTi G4 subjected to mechanical grinding and electrochemical polishing was carried out in a solution of 1M ethylene glycol with the addition of 40 g of ammonium fluoride at a voltage of 20 V for 2, 18, 24, and 48 h at room temperature. It was found that the longer the anodization time, the greater the number of pores formed on the CpTi G4 surface as revealed using the FE-SEM method, and the greater the surface roughness determined in profilometric tests. As the anodizing time increases, the amount of the drug in the form of gentamicin sulfate incorporated into the resulting pores decreases. The most favorable drug release kinetics profile determined via UV–VIS absorption spectroscopy was found for the CpTi G4 anodized for 2 h. Full article
(This article belongs to the Special Issue Advances in Biomedical Alloys and Surface Modification)
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