Innovations in Hybrid Biomaterials and Coatings

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Bioactive Coatings and Biointerfaces".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 7400

Special Issue Editor


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Guest Editor
Department of General Chemistry, Univeristy Politehnica of Bucharest, 011061 Bucharest, Romania
Interests: development biomaterials; application of biomimetic principles in the obtained of a new generation of biomaterials; fabrication of multicomponent and multifunctional nanoparticles with therapeutic and/or diagnostic potencies; mechanism and kinetic of metal/drugs release; corrosion

Special Issue Information

Dear Colleagues,

Hybrid materials and nanocomposites represent one of the most promising classes of new materials, being at the cutting edge of technological innovations. These unique material properties are obtaining a synergetic-like combination between organic and inorganic components on the molecular scale. One of the most important advantages of inorganic-organic hybrid materials is their simple processing technology, which allows for a tailored design for various applications. Their processing and composition allows them to be used for the production of transparent films, ideal for use as coatings.

These types of materials offer many significant and exciting possibilities of being used as biomaterials in the field of biomedical research; for example, for hard tissue regeneration. In the field of regenerative medicine, biomaterials play a crucial role, since they may serve as a support (scaffold) to promote cell growth and differentiation, in order to promote the healing of tissue lesion.

This Special Issue has two aims. The first is to obtain hybrid biomaterials and coatings, at the nanoscale level, with superior properties. Secondly, the Issue seeks to characterize these new materials in order to make them suitable for tissue engineering or implants, use them as better and innovative materials for scaffold production, or for other biomedical applications. For this purpose, we will analyze the main materials and their characteristics, such as biocompatibility, bioactivity or biodegradation. The way in which these materials’ chemical-physical properties (structural properties, surface morphology, porosity, stiffness, and mechanical strength) could affect the interaction with cells and living systems will be discussed. Many different formulations, in terms of material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics, will be proposed.

In particular, the topics of interest include, but are not limited to:

  • Hybrid organic-ionorganic materials for medical application;
  • Hybrid polymer biomaterials for bone tissue regeneration;
  • Composite and nanocomposite biomaterials;
  • Biomimetic and bioactive coatings and scaffolds;
  • Surface modification of biomaterials;
  • Surface, interface thin films;
  • Corrosion and degradation of biomaterials;
  • Antimicrobial biomaterials and in vivtro/in vivo evaluation.

Prof. Dr. Daniela Ionita
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 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. Coatings 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

  • hybrid biomaterials
  • coating
  • surface engineering
  • antimicrobial
  • ion/drug release

Published Papers (3 papers)

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Research

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12 pages, 3619 KiB  
Article
The Design and Characterization of New Chitosan, Bioglass and ZnO-Based Coatings on Ti-Zr-Ta-Ag
by Mariana Prodana, Daniela Ionita, Andrei Bogdan Stoian, Ioana Demetrescu, Geanina Valentina Mihai and Marius Enăchescu
Coatings 2023, 13(3), 493; https://doi.org/10.3390/coatings13030493 - 23 Feb 2023
Cited by 2 | Viewed by 1424
Abstract
The starting point of this study is a new alloy with rare metals such as Ta and Zr that has Ag in the composition, proven antibacterial properties. New coatings on Ti-Zr-Ta-Ag capable of improving the alloys’ properties and to be suitable for more [...] Read more.
The starting point of this study is a new alloy with rare metals such as Ta and Zr that has Ag in the composition, proven antibacterial properties. New coatings on Ti-Zr-Ta-Ag capable of improving the alloys’ properties and to be suitable for more applications have yet to be fabricated. New formulations based on chitosan (Ch) and bioglass (BG) were designed as multifunctional coatings to be deposited from suspensions on the mentioned alloy. To make the suspensions used for deposition, several samples were made containing Ch, BG and ZnO in various mass ratios. A number of solutions with different component ratios were produced and analyzed by ζ potential and Dynamic Light Scattering (DLS) to determine the most stable mixture, which was subsequently deposited on the Ti-Zr-Ta-Ag samples. The mixtures and the samples obtained after applying the coating were characterized from a morphological and compositional standpoint using Scanning Electron Microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX) and Fourier-transform infrared spectroscopy (FT-IR). Further analyses on the properties of the coating were performed using contact angle and roughness analysis. Zeta potential measurements demonstrated evidence of a good stability of the coatings. The size of the ceramic particles is between 1 and 10 μm. From the SEM, the morphology of all the components from the mixture containing chitosan, bioglass and ZnO are shown to be present on the surface. From the FTIR determination, all the functional groups that appear demonstrated evidence of the presence of BG, ZnO and chitosan. The contact angle values of the coated samples are in the hydrophilic domain but are higher compared to the uncoated alloy values. Such behavior is promising in a potential bioapplication. Full article
(This article belongs to the Special Issue Innovations in Hybrid Biomaterials and Coatings)
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13 pages, 2992 KiB  
Article
Characterization of Three Surface Treatments on TiZr—Coating Properies and Corrosion Behavior
by Manuela Elena Voicu, Andrei Bogdan Stoian, Ioana Demetrescu and Daniela Ionita
Coatings 2021, 11(6), 615; https://doi.org/10.3390/coatings11060615 - 21 May 2021
Cited by 2 | Viewed by 1950
Abstract
Titanium implants remain a reliable treatment for patients in need of restorative orthopedic and oral cavity works due to their high flexibility in manufacturing. Multiple strategies for improving Ti implants have been successfully tested and employed including alloying and surface coatings. Polylactic acid [...] Read more.
Titanium implants remain a reliable treatment for patients in need of restorative orthopedic and oral cavity works due to their high flexibility in manufacturing. Multiple strategies for improving Ti implants have been successfully tested and employed including alloying and surface coatings. Polylactic acid (PLA) based nanofibers can be interesting due to their large surface-to-volume ratio and ability to interact with large volumes of other substances. This paper offers an in-depth characterization of a nanofibrous PLA coating obtained by electrospinning on TiZr oxide. Analyses include morphology characterization, investigation of forces present on the surface, and the observation of the evolution of the coatings immersed in two bioelectrolytes. Full article
(This article belongs to the Special Issue Innovations in Hybrid Biomaterials and Coatings)
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Review

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20 pages, 1296 KiB  
Review
Innovative Coatings of Metallic Alloys Used as Bioactive Surfaces in Implantology: A Review
by Mariana Prodana, Andrei Bogdan Stoian, Cristian Burnei and Daniela Ionita
Coatings 2021, 11(6), 649; https://doi.org/10.3390/coatings11060649 - 28 May 2021
Cited by 16 | Viewed by 3392
Abstract
Metallic implants are widely used in the field of implantology, but there are still problems leading to implant failures due to weak osseointegration, low mechanical strength for the implant, inadequate antibacterial properties, and low patient satisfaction. Implant failure can be caused by bacterial [...] Read more.
Metallic implants are widely used in the field of implantology, but there are still problems leading to implant failures due to weak osseointegration, low mechanical strength for the implant, inadequate antibacterial properties, and low patient satisfaction. Implant failure can be caused by bacterial infections and poor osteointegration. To improve the implant functionalization, many researchers focus on surface modifications to prepare the proper physical and chemical conditions able to increase biocompatibility and osteointegration between implant and bone. Improving the antibacterial performance is also a key factor to avoid the inflammation in the human body. This paper is a brief review for the types of coatings used to increase osseointegration and biocompatibility for the successful use of metal alloys in the field of implantology. Full article
(This article belongs to the Special Issue Innovations in Hybrid Biomaterials and Coatings)
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