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Advances in Antibacterial Coatings

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Biomaterials".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 2145

Special Issue Editor


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Guest Editor
Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, TO, Italy
Interests: thin films; antibacterial coatings; antiviral coatings; PDV; nanomaterials; ceramics; glasses

Special Issue Information

Dear Colleagues,

Human activities increasingly require antiseptic (and therefore antibacterial, antiviral, antifungal) properties for the surfaces of objects and structures with which we interact every day.

In addition to the most obvious applications such as operating rooms, surgical instruments, prostheses and dental implants or other orthopedic aids, there are also requests from industrial chains such as food handling operations. There are also more and more requests for antibacterial surfaces for commonly used devices such as electronic devices (cell phones, screens, etc.), as well as interiors and furnishings for vehicles (buses, cars) and structures (parts for waiting rooms, etc.). Even in space (i.e., The International Space Station (ISS) or the ExoMars project), antibacterial properties are required to avoid contamination of the living spaces and problems related to fungi on the electrical parts.

Unfortunately, the current pandemic has increased the demand even further.

There are many possible ways to impart antibacterial properties to a surface, but coatings are the most common and industrially exploited methods, both for their versatility and for the cost/benefit ratio that can be obtained.

Therefore, this Special Issue is dedicated to research and review papers tackling the problems of imparting antibacterial properties to objects and surfaces by using coatings for biomedical and other engineering applications.

Possible topics for this Special Issue include, but are not limited to, the following:

  • Antibacterial coatings obtained by physical vapor deposition (PVD) technologies;
  • Antibacterial coatings obtained by chemical vapor deposition (CVD) technologies;
  • Antibacterial coatings obtained by atmospheric plasma treatments;
  • Antibacterial coatings obtained by grafting or surface functionalization;
  • Antibacterial coatings obtained by spraying technologies;
  • Antibacterial coatings obtained by dry and wet chemical process or other surface treatments;
  • Antibacterial coatings obtained by micromachining surfaces.

Dr. Sergio Perero
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. Materials is an international peer-reviewed open access semimonthly 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

  • coatings
  • antibacterial
  • antiviral
  • antiseptic
  • physical vapor deposition (PVD)
  • chemical vapor deposition (CVD)
  • plasma
  • spray
  • wet and dry chemical process
  • micromachining of surfaces

Published Papers (1 paper)

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Research

14 pages, 3519 KiB  
Article
Antimicrobial Activity of a Novel Cu(NO3)2-Containing Sol–Gel Surface under Different Testing Conditions
by Daniela Toplitsch, Jürgen Markus Lackner, Alexander Michael Schwan, Andreas Hinterer, Philipp Stögmüller, Kerstin Horn, Natalie Fritzlar, Andreas Pfuch and Clemens Kittinger
Materials 2021, 14(21), 6488; https://doi.org/10.3390/ma14216488 - 28 Oct 2021
Cited by 4 | Viewed by 1722
Abstract
In this study, assessment of the antimicrobial activity of a novel, plasma-cured 2.5% (w/v) Cu(NO3)2-containing sol–gel surface was performed. In contrast to state-of-the-art sol–gel coatings, the plasma curing led to a gradient in cross-linking with [...] Read more.
In this study, assessment of the antimicrobial activity of a novel, plasma-cured 2.5% (w/v) Cu(NO3)2-containing sol–gel surface was performed. In contrast to state-of-the-art sol–gel coatings, the plasma curing led to a gradient in cross-linking with the highest values at the top of the coating. As a result, the coating behaved simultaneously hard, scratch-resistant, and tough, the latter due to the more flexible bulk of the coating toward the substrate. Further, the diffusion and permeation through the coating also increased toward the substrate. In our study, tests according to ISO 22196 showed antibacterial activity of the 2.5% (w/v) Cu(NO3)2-containing sol–gel surface against all bacterial strains tested, and we expanded the testing further using a “dry” evaluation without an aqueous contact phase, which confirmed the antimicrobial efficacy of the 2.5% (w/v) Cu(NO3)2-containing sol–gel surface. However, further investigation under exposure to soiling with the addition of 0.3% albumin, used to simulate organic load, led to a significant impairment in the antibacterial effect under both tested conditions. Furthermore, re-testing of the surface after disinfection with 70% ethanol led to a total loss of antibacterial activity. Our results showed that besides the mere application of an antimicrobial agent to a surface coating, it is also necessary to consider the future use of these surfaces in the experimental phase combining industry and science. Therefore, a number of tests corresponding to the utilization of the surface should be obligative on the basis of this assessment. Full article
(This article belongs to the Special Issue Advances in Antibacterial Coatings)
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