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Polymers
Special Issues
Bio-Based Polymer Materials: Contribution to Advancing Circular Economy II
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Bio-Based Polymer Materials: Contribution to Advancing Circular Economy II

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biomacromolecules, Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 4917

Special Issue Editors

Dr. Maya Jacob John

E-Mail Website1 Website2
Guest Editor
Advanced Polymer Composites, Centre of Nanostructured and Advanced Material, CSIR, Pretoria 0184, South Africa
Interests: natural fibres; rubber composites; polymer composites; agro-waste derived products
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Sabu Thomas

E-Mail Website1 Website2
Guest Editor
1. International and Interuniversity Centre for Nano Science and Nano Technology, Mahatma Gandhi University, Kottayam 686560, India
2. Basic Department of Biotechnology, School of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av., 660041 Krasnoyarsk, Russia
Interests: nanomaterials; polymer blends; fiber-filled polymer composites; polymer nanocomposites; aging and degradation; pervaporation phenomena; sorption and diffusion; interpenetrating polymer systems; recyclability and reuse of waste plastics and rubbers; elastomer crosslinking; dual porous nanocomposite scaffolds for tissue engineering; polymer nanocomposites for electronic applications; water purification; energy storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue will focus on manuscripts dealing with the development of sustainable materials from renewable resources. Sustainable materials include waste-derived, recyclable, and biodegradable materials. The Special Issue will deal with reviews, new concept ideas, and basic research and developmental manuscripts on the following topics:

  • Waste residues from agro-waste, food industry, etc. as a feedstock and converting to value-added products;
  • Processing, morphology, structure, properties, and applications of waste-derived chemicals and bio-based products;
  • Renewable carbon-based technologies for the chemicals and plastics industry;
  • Manufacturing, characterization, chemical, and physical modification and engineering of bio-based products;
  • Sustainable utilization and conversion of recycled plastic waste to functional products;
  • Biodegradation studies in bio-based materials;
  • Sustainable materials and technologies for the implementation of a circular economy.

Dr. Maya Jacob John
Prof. Dr. Sabu Thomas
Guest Editors

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. Polymers 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 2700 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

  • bio-based materials
  • biopolymers
  • waste
  • recycling
  • circular economy
  • nanocellulose
  • natural fibers

Published Papers (2 papers)

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Research

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12 pages, 3157 KiB  
Article
Proporties and Synthesis of Biosilver Nanofilms for Antimicrobial Food Packaging
by Gülay Baysal, Cihat Demirci and Haydar Özpinar
Polymers 2023, 15(3), 689; https://doi.org/10.3390/polym15030689 - 30 Jan 2023
Cited by 13 | Viewed by 1994
Abstract
In this original research, biodegradable corn starch (CS) and wheat gluten (wg)-based silver nanofilms were synthesized and analyzed by using goji berry extract taurine (ta), garlic extract (GC), whey powder (wh), and montmorillonite clay nanoparticles. Antibacterial-corn-starch-based nano films were analyzed by using the [...] Read more.
In this original research, biodegradable corn starch (CS) and wheat gluten (wg)-based silver nanofilms were synthesized and analyzed by using goji berry extract taurine (ta), garlic extract (GC), whey powder (wh), and montmorillonite clay nanoparticles. Antibacterial-corn-starch-based nano films were analyzed by using the methods of high-performance liquid chromatography (HPLC), Fourier Transform infrared spectroscopy (FTIR-ATR), X-ray diffraction (XRD), dynamic and mechanical (DMA) analysis, and scanning electron microscopy (SEM). In addition, the antibacterial resistances of the corn starch nano films against the bacteria Salmonella and Staphylococcus aureus (S. aureus) and Listeria monocytogenes were examined and the migration assays were carried out. The migration analysis results of CS1, CS2, and CS3 nanocomposite films were found as 0.305, 0.297, and 0.297 mg/dm2, respectively. The inhibition zone of CS1, CS2, and CS3 nanocomposite films were found as 1547, 386, and 1884 mm2 against Salmonella bacteria. The results show that silver nanofilms are suitable as packaging films for the production of packaging in milk and dairy products, liquid foods, and acidic foods. Full article
(This article belongs to the Special Issue Bio-Based Polymer Materials: Contribution to Advancing Circular Economy II)
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Review

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19 pages, 1199 KiB  
Review
Preparation Methods and Functional Characteristics of Regenerated Keratin-Based Biofilms
by Ruirui Wang and Hui Tong
Polymers 2022, 14(21), 4723; https://doi.org/10.3390/polym14214723 - 04 Nov 2022
Cited by 3 | Viewed by 2558
Abstract
The recycling, development, and application of keratin-containing waste (e.g., hair, wool, feather, and so on) provide an important means to address related environmental pollution and energy shortage issues. The extraction of keratin and the development of keratin-based functional materials are key to solving [...] Read more.
The recycling, development, and application of keratin-containing waste (e.g., hair, wool, feather, and so on) provide an important means to address related environmental pollution and energy shortage issues. The extraction of keratin and the development of keratin-based functional materials are key to solving keratin-containing waste pollution. Keratin-based biofilms are gaining substantial interest due to their excellent characteristics, such as good biocompatibility, high biodegradability, appropriate adsorption, and rich renewable sources, among others. At present, keratin-based biofilms are a good option for various applications, and the development of keratin-based biofilms from keratin-containing waste is considered crucial for sustainable development. In this paper, in order to achieve clean production while maintaining the functional characteristics of natural keratin as much as possible, four important keratin extraction methods—thermal hydrolysis, ultrasonic technology, eco-friendly solvent system, and microbial decomposition—are described, and the characteristics of these four extraction methods are analysed. Next, methods for the preparation of keratin-based biofilms are introduced, including solvent casting, electrospinning, template self-assembly, freeze-drying, and soft lithography methods. Then, the functional properties and application prospects of keratin-based biofilms are discussed. Finally, future research directions related to keratin-based biofilms are proposed. Overall, it can be concluded that the high-value conversion of keratin-containing waste into regenerated keratin-based biofilms has great importance for sustainable development and is highly suggested due to their great potential for use in biomedical materials, optoelectronic devices, and metal ion detection applications. It is hoped that this paper can provide some basic information for the development and application of keratin-based biofilms. Full article
(This article belongs to the Special Issue Bio-Based Polymer Materials: Contribution to Advancing Circular Economy II)
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