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Polyelectrolyte Multilayer Coatings
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Polyelectrolyte Multilayer 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 (31 July 2022) | Viewed by 4646

Special Issue Editor

Prof. Dr. Klemen Bohinc

E-Mail Website
Guest Editor
Faculty of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia
Interests: electrostatics and statistical physics of biological macromolecules; polyelectrolytes and membranes; charge determination of nanoparticles; development of new coatings; microbial adhesion to material surfaces
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, many attempts have been made to develop different types of coatings. In medicine, finding optimal antimicrobial and osteointegrative coatings is of special interest. Polyelectrolyte coatings are one of the most promising type of coatings to fulfil the desired properties for implantable devices, such as reduced bacterial adhesion and biofilm formation. A special but very important case of possible biomedical applications is the development of antibacterial polyelectrolyte multilayers. In examining these challenges, suitable topics for this Special Issue on “Polyelectrolyte Multilyer Coatings” include:

  • Preparation of innovative Polyelectrolyte Multilayer Coatings;
  • Characterization of coated surfaces;
  • Development of antimicrobial surfaces;
  • Development of new coatings for implants.

Prof. Dr. Klemen Bohinc
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

  • polyelectrolyte coatings
  • antibacterial coatings
  • surface characterization
  • implants
  • self-cleaning

Published Papers (2 papers)

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Research

17 pages, 14661 KiB  
Article
Antibacterial Effect of Polymethyl Methacrylate Resin Base Containing TiO2 Nanoparticles
by Anamarija Zore, Anže Abram, Aleksander Učakar, Ivo Godina, Franc Rojko, Roman Štukelj, Andrijana Sever Škapin, Rajko Vidrih, Olivera Dolic, Valentina Veselinovic and Klemen Bohinc
Coatings 2022, 12(11), 1757; https://0-doi-org.brum.beds.ac.uk/10.3390/coatings12111757 - 16 Nov 2022
Cited by 4 | Viewed by 1724
Abstract
Restorations in dentistry must reproduce the aspect of the patient’s natural teeth and require non-toxicity, biocompatibility, and good mechanical properties in order to last longer. Restorations are permanently in contact with microbes that can adhere to and form biofilms. The purpose of this [...] Read more.
Restorations in dentistry must reproduce the aspect of the patient’s natural teeth and require non-toxicity, biocompatibility, and good mechanical properties in order to last longer. Restorations are permanently in contact with microbes that can adhere to and form biofilms. The purpose of this study was to determine the adhesion extent of Streptococcus mutans to polymethyl methacrylate (PMMA) resin base containing TiO2 nanoparticles. To understand the adhesion of Streptococcus mutans on the modified resin-based surfaces, the following surface properties were measured: the roughness, contact angle, zeta potential and CIE color parameters. Evaluation of tensile stress performance in TiO2 modified PMMA showed that the maximum tensile stress of the modified PMMA resin decreases with an increasing amount of TiO2 nanoparticles. The increasing amount of TiO2 decreases the roughness and causes contact angles in the border between hydrophilic and hydrophobic surfaces. All the studied surfaces are negatively charged and added TiO2 tends to increase the zeta potential. The addition of TiO2 nanoparticles increases the lightness and decreases the intensity of the red and yellow color. The increasing addition of TiO2 nanoparticles into PMMA increases the morphological change of bacterial cells. Full article
(This article belongs to the Special Issue Polyelectrolyte Multilayer Coatings)
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12 pages, 2617 KiB  
Article
Bacterial Adhesion Capacity of Uropathogenic Escherichia coli to Polyelectrolyte Multilayer Coated Urinary Catheter Surface
by Klemen Bohinc, Lora Kukić, Roman Štukelj, Anamarija Zore, Anže Abram, Tin Klačić and Davor Kovačević
Coatings 2021, 11(6), 630; https://0-doi-org.brum.beds.ac.uk/10.3390/coatings11060630 - 25 May 2021
Cited by 8 | Viewed by 2197
Abstract
The application of catheters to the urinary tract is associated with nosocomial infections. Such infections are one of the most common types of infections in hospitals and health care facilities and can lead to numerous medical complications. Therefore, the understanding of the properties [...] Read more.
The application of catheters to the urinary tract is associated with nosocomial infections. Such infections are one of the most common types of infections in hospitals and health care facilities and can lead to numerous medical complications. Therefore, the understanding of the properties of urinary catheter surfaces and their potential modifications are crucial in order to reduce bacterial adhesion and subsequent biofilm formation. In our study, we consider standard polyvinyl chloride (PVC) catheter surfaces and compare their properties with the properties of the same surfaces coated with poly(diallyldimethylammonium chloride)/poly(sodium 4-styrenesulfonate) (PDADMA/PSS) polyelectrolyte multilayers. Uncoated and coated surfaces were characterized by means of roughness, hydrophobicity, and zeta potential measurements. Finally, bacterial adhesion extent of uropathogenic Escherichia coli on bare and polyelectrolyte multilayer coated surfaces was measured. The obtained results show that on non-treated surfaces, biofilm is formed which was not the case for multilayer coated surfaces. The PSS-terminated multilayer shows the lowest bacterial adhesion and could be helpful in prevention of biofilm formation. The analysis of the properties of the uncoated and coated surfaces reveals that the most significant difference is related to the charge (i.e., zeta potential) of the examined surfaces, while roughness and hydrophobicity of the examined surfaces are similar. Therefore, it could be concluded that the surface charge plays the crucial role in the bacterial adhesion on uncoated and coated PVC catheter surfaces. Full article
(This article belongs to the Special Issue Polyelectrolyte Multilayer Coatings)
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