Surface Properties of Implants and Biomedical Devices

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Coatings for Biomedicine and Bioengineering".

Deadline for manuscript submissions: 10 March 2025 | Viewed by 2737

Special Issue Editors


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Guest Editor
Integral Dentistry Department, Universidad de La Frontera, Temuco 4811230, Chile
Interests: corrosion of biomedical materials; osseointegration; dental materials; dental implant design; biomaterials; dental microscopy
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Integral Dentistry Department, Universidad de La Frontera, Temuco 4811230, Chile
Interests: biomaterials and bio grafts applied to oral biology; dental implant ultrastructure; electron microscopy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The current development of technologies requires a constant analysis of emerging materials. In this sense, the surfaces of implants and biomedical devices are constantly being improved by being subjected to physical, biochemical, and/or chemical treatments. The use of additive manufacturing has increased considerably in the last few years, as has the use of innovative devices.

This Special Issue is open to all medical specializations that can contribute information about advanced surface analyses for implants and biomedical devices, the characterization of ceramic devices, new metal alloys to be used as implant materials, innovations in microscopy software, the interpretation of soft tissue interactions with composites, bioceramics, polymers, and metal alloys.

The scope of this Special Issue will serve as a forum for research on the following concepts:

  • Surface treatments and tissue interactions.
  • Surface functionalization of biomedical devices.
  • Surfaces and materials for implants.
  • Recent insights into biomedical devices.
  • Surface characterization of dental materials.

In this Special Issue of Coatings, high-quality research from all biomedical fields that includes and improves the knowledge about surface analyses for implants and biomedical devices will be published.

Dr. Eduardo Borie
Dr. Fernando José Dias
Guest Editors

Manuscript Submission Information

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Keywords

  • dental implants
  • surface treatment of biomedical devices
  • microscopy of biomedical devices
  • dental materials
  • biomedical device analysis

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Published Papers (2 papers)

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Research

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19 pages, 7395 KiB  
Article
Simple UV-Grafting of PolyAcrylic and PolyMethacrylic Acid on Silicone Breast Implant Surfaces: Chemical and Mechanical Characterizations
by Anna Wozniak, Vincent Humblot, Romain Vayron, Rémi Delille and Céline Falentin-Daudré
Coatings 2023, 13(11), 1888; https://doi.org/10.3390/coatings13111888 - 2 Nov 2023
Cited by 1 | Viewed by 1333
Abstract
Poly(dimethyl siloxane) (PDMS) is one of the most widely used materials in the biomedical field. Despite its numerous advantages, its hydrophobic character promotes bacterial adhesion and biofilm formation. For breast implants, biocompatibility is challenged due to the biofilm formed around the implant that [...] Read more.
Poly(dimethyl siloxane) (PDMS) is one of the most widely used materials in the biomedical field. Despite its numerous advantages, its hydrophobic character promotes bacterial adhesion and biofilm formation. For breast implants, biocompatibility is challenged due to the biofilm formed around the implant that can degenerate to severe capsular contracture over time. Thus, the laboratory has set up strategies to prevent bacterial contamination by grafting covalently hydrophilic bioactive polymers on the surface of implants. In this study, poly(methacrylic acid) (PMAc) and poly(acrylic acid) (PAAc) were chosen as non-toxic and biocompatible bioactive polymers known for reducing bacteria adhesion. These polymers are also good candidates to lend reactivity on the surface for further functionalization. X-ray photoelectron Spectroscopy (XPS) and Fourier-Transform Infrared spectroscopy (FTIR) analysis have highlighted the covalent grafting of these polymers. Apparent water contact angle measurements have shown the change in hydrophilicity on the surface, and a colorimetric assay allowed us to assess the grafting rate of PMAc and PAAc. Tensile strength assays were performed to ensure that the functionalization process does not significantly alter the material’s mechanical properties. Analyses of the surface aspect and roughness by Scanning Electron Microscope (SEM) and optical profilometer allow us to formulate hypotheses to approach the understanding of the behavior of the polymer once grafted. Full article
(This article belongs to the Special Issue Surface Properties of Implants and Biomedical Devices)
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Review

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8 pages, 4119 KiB  
Review
Zirconia Implants: A Brief Review and Surface Analysis of a Lost Implant
by Eduardo Borie, Eduardo Rosas, Raphael Freitas de Souza and Fernando José Dias
Coatings 2024, 14(8), 995; https://doi.org/10.3390/coatings14080995 - 6 Aug 2024
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Abstract
Zirconia implants have emerged as a valuable alternative for clinical scenarios where aesthetic demands are high, as well as in cases of hypersensitivity to titanium or for patients who refuse metallic objects in their bodies due to personal reasons. However, these implants have [...] Read more.
Zirconia implants have emerged as a valuable alternative for clinical scenarios where aesthetic demands are high, as well as in cases of hypersensitivity to titanium or for patients who refuse metallic objects in their bodies due to personal reasons. However, these implants have undergone various changes in geometry, manufacturing techniques, and surface modifications since the introduction of the first zirconia implants. The present study aims to review the current evidence on zirconia implants, considering the changes they have undergone in recent years. Additionally, it aims to analyze the three-dimensional surface characteristics of a failed zirconia implant using scanning electron microscopy and elemental analysis with energy-dispersive X-ray spectrometry (EDX). A zirconia implant lost three weeks after placement was immediately assessed using VP-SEM equipment and chemically analyzed by EDX using a 410-M detector connected to the microscope. Sparse material depositions were found on all parts of the implant, with a notable concentration in the thread grooves. The elements identified in the sample included zirconium, oxygen, carbon, calcium, and phosphorus. This report demonstrates that the surface of zirconia implants can accumulate elements early in the process of bone matrix neoformation, which is consistent with the initial stage of osseointegration. Full article
(This article belongs to the Special Issue Surface Properties of Implants and Biomedical Devices)
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