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Bio-Based Polymers against Viral, Bacterial, and Fungal Pathogens

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 11426

Special Issue Editor


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Guest Editor
Consejo Superior de Investigaciones Científicas, Instituto de Ciencia y Tecnología de Polímeros and Interdisciplinary, Platform for Sustainable Plastics towards a Circular Economy, Calle Juan de la Cierva, 3, 28006 Madrid, Spain
Interests: polymers; bacterial resistance; biomaterials; sustainability
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Scientists, engineers, and biotechnologists are called to take urgent action providing realistic solutions to the societal challenges that are compromising the present and future generations’ wellbeing. Among them, microbial resistance and sustainable development are of great importance due to their direct impact on the global economic and social burden. Microbial resistance is today at the center of international health strategies to overcome the devastating incidence of the COVID-19 pandemic, but we must be aware of future bacterial, viral, and fungal dangers that may imperil our societies worldwide.

In this context, polymer science is playing a pivotal role in facing these problems by providing a new generation of materials that can be obtained from renewable resources and be modified or processed in combination with antimicrobial substances and patterned microstructures with the capacity to limit or even rid the bacterial, viral, and fungal capability to adhere, proliferate, and survive in contact with bioactive surfaces.

This Special Issue of Applied Sciences aims to focus on the most recent advances obtaining antimicrobial sustainable materials with improved performance for application in antimicrobial food packaging, bacteriostatic textiles, antiviral polymers, barrier membranes, antifouling, antibacterial biomaterials, and polymer–drug conjugates.

Dr. Luis Rojo del Olmo
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. Applied Sciences 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 2400 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
  • bacterial resistance
  • fungal resistance
  • viral resistance
  • antiviral polymers
  • antimicrobial food packaging
  • bacteriostatic textiles
  • antifouling
  • antibacterial biomaterials
  • polymer–drug conjugates
  • barrier membranes
  • biodegradable
  • bio-based materials
  • sustainable
  • eco-friendly

Published Papers (2 papers)

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Research

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14 pages, 9674 KiB  
Article
Starch-Polyvinyl Alcohol-Based Films Reinforced with Chitosan Nanoparticles: Physical, Mechanical, Structural, Thermal and Antimicrobial Properties
by Yahya Garavand, Amin Taheri-Garavand, Farhad Garavand, Feizollah Shahbazi, Diako Khodaei and Ilaria Cacciotti
Appl. Sci. 2022, 12(3), 1111; https://doi.org/10.3390/app12031111 - 21 Jan 2022
Cited by 30 | Viewed by 2816
Abstract
The main purpose of the current study was to propose innovative composite films based on a corn starch/polyvinyl alcohol (PVA) blend (starch:PVA 40:60) and loaded with 3 different levels of chitosan nanoparticles (CNPs) (1, 3, and 5% w/v) to strengthen [...] Read more.
The main purpose of the current study was to propose innovative composite films based on a corn starch/polyvinyl alcohol (PVA) blend (starch:PVA 40:60) and loaded with 3 different levels of chitosan nanoparticles (CNPs) (1, 3, and 5% w/v) to strengthen its physical, mechanical, structural, thermal and antimicrobial attributes. The synthesized CNPs were spherical with a particle size of ca. 100 nm as demonstrated by scanning electron microscopy (SEM) micrographs and dynamic light scattering tests. The results showed that the CNPs incorporation within the starch-PVA 40:60 films promoted a uniform surface without any considerable pores. These films were characterized by a homogeneous CNP distribution within the polymer matrix, causing a significant decrease in water vapor permeability (WVP) (e.g., from 0.41 for the control film to 0.28 g·mm/kPa·h·m2 for the composite film loaded with 5% CNPs). The film solubility, transparency, glass transition and melting temperatures, and elongation at break were also reduced by increasing the CNP content from 1% to 5%, while total color and tensile strength parameters increased. The antibacterial effects of CNPs were more effective against Gram-positive bacteria (Staphylococcus aureus) than Gram-negative bacteria (Escherichia coli and Salmonella typhimurium). It can be concluded that the addition of CNPs to the starch-PVA matrix could improve its functional and technological attributes for food packaging applications. Full article
(This article belongs to the Special Issue Bio-Based Polymers against Viral, Bacterial, and Fungal Pathogens)
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Review

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11 pages, 1901 KiB  
Review
Hyaluronic Acid-Based Wound Dressing with Antimicrobial Properties for Wound Healing Application
by Francesca Della Sala, Gennaro Longobardo, Antonio Fabozzi, Mario di Gennaro and Assunta Borzacchiello
Appl. Sci. 2022, 12(6), 3091; https://doi.org/10.3390/app12063091 - 17 Mar 2022
Cited by 43 | Viewed by 8038
Abstract
Wound healing is a naturally occurring process that can be aided by a wound dressing properly designed to assure an efficient healing process. An infection caused by several microorganisms could interfere with this process, delaying or even impairing wound healing. Hyaluronic acid (HA), [...] Read more.
Wound healing is a naturally occurring process that can be aided by a wound dressing properly designed to assure an efficient healing process. An infection caused by several microorganisms could interfere with this process, delaying or even impairing wound healing. Hyaluronic acid (HA), a main constituent of the extracellular matrix (ECM) of a vertebrate’s connective tissue, represents a promising biomaterial for wound dressing thanks to its intrinsic biocompatibility, hydrophilicity and bacteriostatic properties. In this review, different and recent types of HA-based wound dressings endowed with intrinsic antimicrobial properties or co-adjuvated by antimicrobial natural or synthetic agents are highlighted. Full article
(This article belongs to the Special Issue Bio-Based Polymers against Viral, Bacterial, and Fungal Pathogens)
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