Special Issue "Current Trends in Antimicrobial Polymeric Materials"

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: 30 April 2020.

Special Issue Editor

Dr. Dawid Stawski
E-Mail Website1 Website2
Guest Editor
Department of Material and Commodity Sciences and Textile Metrology, Lodz University of Technology, Lodz, Poland

Special Issue Information

Dear Colleagues,

the growing interest in a healthy lifestyle in modern society has also caused an increase in the demand for materials showing antibacterial activity. Thanks to such materials, an environment free from pathogenic microorganisms is created in our immediate surroundings. Some polymers have the ability to inhibit microbial growth or even their complete destruction. Due to the type of polymers, as well as the many possibilities of using their antimicrobial properties, the dividing of such macromolecules can be different, and their systematization is not easy. Particular attention should be paid to two parameters: the mechanism of action of polymers, and their chemical structure.

Due to the mechanism of action, polymers are divided into bacteriostatic and bactericidal polymers. The first group consists of polymers which, by acting on the wall and cell membrane of bacteria, inhibit its further development and multiplication. In contrast, biocidal polymers contribute to the complete breakdown of the bacterial cell. Another division, taking into account the combination of the polymer chain with an antibacterial agent, divides polymers into releasing antibacterial agent and the group of contacting, permanent and static antibacterial compounds. Polymers releasing an antibacterial agent unstably bound, most often physical interactions, emit it under appropriate conditions (e.g., temperature or pH change). Such compounds require prior functionalization of the polymer chain with a suitable biocidal compound. The second possibility is polymers whose chains have chemical groups in their structure. The factors permanently associated with the modified surface are more acceptable from this point of view because they do not release into the environment during the using process.

The most popular antibacterial or functionalized polymers with antimicrobial properties include (i) compounds containing quaternary ammonium salts, (ii) halogenated phenols, (iii) nanoparticles of noble metals and metal oxides, or (iv) compounds based on natural biocides. The purpose of this Special Issue is to present the latest solutions in the field of giving polymers antimicrobial properties, the extent of interaction of these compounds and the conditions in which the optimum of these properties is obtained.

Dr. Dawid Stawski
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 papers will be 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. Polymers 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 1500 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

  • polymers
  • antimicrobial properties
  • bacteria

Published Papers (1 paper)

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Research

Open AccessArticle
Durable Antimicrobial Behaviour from Silver-Graphene Coated Medical Textile Composites
Polymers 2019, 11(12), 2000; https://doi.org/10.3390/polym11122000 - 03 Dec 2019
Abstract
Silver nanoparticle (AgNP) and AgNP/reduced graphene oxide (rGO) nanocomposite impregnated medical grade polyviscose textile pads were formed using a facile, surface-mediated wet chemical solution-dipping process, without further annealing. Surfaces were sequentially treated in situ with a sodium borohydride (NaBH4) reducing agent, [...] Read more.
Silver nanoparticle (AgNP) and AgNP/reduced graphene oxide (rGO) nanocomposite impregnated medical grade polyviscose textile pads were formed using a facile, surface-mediated wet chemical solution-dipping process, without further annealing. Surfaces were sequentially treated in situ with a sodium borohydride (NaBH4) reducing agent, prior to formation, deposition, and fixation of Ag nanostructures and/or rGO nanosheets throughout porous non-woven (i.e., randomly interwoven) fibrous scaffolds. There was no need for stabilising agent use. The surface morphology of the treated fabrics and the reaction mechanism were characterised by Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV–Vis) absorption spectra, X-ray diffraction (XRD), Raman spectroscopy, dynamic light scattering (DLS) energy-dispersive X-ray analysis (EDS), and scanning electron microscopic (SEM). XRD and EDS confirmed the presence of pure-phase metallic silver. Variation of reducing agent concentration allowed control over characteristic plasmon absorption of AgNP while SEM imaging, EDS, and DLS confirmed the presence of and dispersion of Ag particles, with smaller agglomerates existing with concurrent rGO use, which also coincided with enhanced AgNP loading. The composites demonstrated potent antimicrobial activity against the clinically relevant gram-negative Escherichia coli (a key causative bacterial agent of healthcare-associated infections; HAIs). The best antibacterial rate achieved for treated substrates was 100% with only a slight decrease (to 90.1%) after 12 equivalent laundering cycles of standard washing. Investigation of silver ion release behaviours through inductively coupled plasmon optical emission spectroscopy (ICP-OES) and laundering durability tests showed that AgNP adhesion was aided by the presence of the rGO host matrix allowing for robust immobilisation of silver nanostructures with relatively high stability, which offered a rapid, convenient, scalable route to conformal NP–decorated and nanocomposite soft matter coatings. Full article
(This article belongs to the Special Issue Current Trends in Antimicrobial Polymeric Materials)
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