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Special Issue "Biosynthesis and Biodegradation—Eco-Concept for Polymer Materials"

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Materials Science".

Deadline for manuscript submissions: 31 December 2022 | Viewed by 1618

Special Issue Editors

Dr. Wanda Sikorska
E-Mail Website
Guest Editor
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34, M. Curie-Sklodowska St., 41-819 Zabrze, Poland
Interests: polyester synthesis; (bio)degradation studies; organic recycling; biodegradable polymers
Special Issues, Collections and Topics in MDPI journals
Dr. Joanna Rydz
E-Mail Website
Guest Editor
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland
Interests: biobased or/and biodegradable polymers; polyesters; (bio)degradation; prediction study
Special Issues, Collections and Topics in MDPI journals
Dr. Marta Musioł
E-Mail Website
Guest Editor
Centre of Polymer and Carbon Materials Polish Academy of Sciences, Zabrze, Poland
Interests: biodegradable or/and compostable polymers; biocomposites; (bio)degradation; composting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Research on the design, characterization, production, and development of environmentally friendly and sustainable materials with higher efficiency and lower costs, in particular resource-efficient materials, is a rapidly growing field. The European Union strategy identifies the most important actions that national and regional authorities as well as industry should take. The current advanced production chain combines various intermediate links, such as raw material suppliers, producers of high-value polymer materials, and waste recyclers. Both biosynthesis, such as the production of complex chemicals from simpler precursors as a result of enzymatic reactions by a living organism, and biodebradation, such as the decomposition of substances catalyzed by enzymes in vivo, fit into the assumptions of green chemistry, which uses a set of principles that limit or eliminate the use or generation of hazardous substances when designing, manufacturing, and using chemical products.

The purpose of this Special Issue is to provide a contemporary overview of the latest developments in the field of materials, in particular, the latest breakthroughs and approaches in the science of bio-based and/or biodegradable polymers leading to the development of the new-generation. resource-efficient, environmentally friendly, and sustainable polymer materials as a new eco-concept for polymer materials for the circular economy. Reviews, original scientific research articles, case reports, letters, and short communications, covering aspects of the current trends in the expansion of such materials are all welcome.

Dr. Wanda Sikorska
Dr. Joanna Rydz
Dr. Marta Musioł
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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • materials for a sustainable future
  • current barriers and future needs of environmentally friendly polymers
  • latest breakthroughs and approaches in the molecular sciences
  • bio-based and/or biodegradable polymers based on natural, renewable, and synthetic polymers
  • synthesis, design, characterization, and development of innovative, technologically advanced, adaptable, and multifunctional bio-based and/or biodegradable polymers in chemistry, biology, and medicine
  • relationships between structure, properties, functions, and performance of bio-based and/or biodegradable polymers
  • sustainability, recycling, environmental issues of bio-based and/or biodegradable polymers
  • commercial applications: concepts, methodologies, and tools
  • applications in the medical, pharmaceutical, dental, packaging, food service, agricultural, horticultural, aeronautical, automotive, transportation, building, construction, consumer goods, electric, and electronic sectors
  • 3D printing for personalized consumer products

Published Papers (2 papers)

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Research

Article
Polymeric Nanorepellent Systems Containing Geraniol and Icaridin Aimed at Repelling Aedes aegypti
Int. J. Mol. Sci. 2022, 23(15), 8317; https://doi.org/10.3390/ijms23158317 - 27 Jul 2022
Viewed by 465
Abstract
Repellents are among the leading products used against diseases transmitted by the Aedes aegypti mosquito. However, their indiscriminate use or high concentrations can cause severe adverse reactions, particularly in children and pregnant women. To protect them, nanotechnology is a promising tool to encapsulate [...] Read more.
Repellents are among the leading products used against diseases transmitted by the Aedes aegypti mosquito. However, their indiscriminate use or high concentrations can cause severe adverse reactions, particularly in children and pregnant women. To protect them, nanotechnology is a promising tool to encapsulate active compounds against degradation, increase their effectiveness, and decrease their toxicity, as it can promote the modified release of the active compound. This study aimed to develop polymeric nanocapsules containing the repellent actives geraniol and icaridin using low concentrations of the active component, with the objective of promoting effective activity and greater safety against adverse reactions. The nanocapsules were developed by the interfacial deposition method, and the physicochemical properties of the nanocapsules were evaluated using dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), zeta potential, differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), release kinetics assay, and mathematical modeling. Cell viability was assessed by the MTT assay and genotoxicity analysis using the comet assay. The developed nanocapsules containing geraniol and icaridin showed mean diameters of 260 nm and 314 nm, respectively, with a polydispersity index < 0.2. The nanocapsules showed encapsulation efficiency values of 73.7 ± 0.1% for icaridin and 98.7 ± 0.1% for geraniol. Morphological analysis showed spherical nanocapsules with low polydispersity. The kinetic parameters calculated using the Korsmeyer–Peppas model indicated an anomalous release profile. Cell viability and genotoxicity analyses showed that the nanocapsules did not alter cell viability or damage DNA. The results demonstrate a promising nanostructured system with good physicochemical characteristics and good stability, with repellent activity against Aedes aegypti. Full article
(This article belongs to the Special Issue Biosynthesis and Biodegradation—Eco-Concept for Polymer Materials)
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Article
Nematic-to-Isotropic Phase Transition in Poly(L-Lactide) with Addition of Cyclodextrin during Abiotic Degradation Study
Int. J. Mol. Sci. 2022, 23(14), 7693; https://doi.org/10.3390/ijms23147693 - 12 Jul 2022
Viewed by 343
Abstract
Poly(L-lactide) is capable of self-assembly into a nematic mesophase under the influence of temperature and mechanical stresses. Therefore, subsequent poly(L-lactide) films were obtained and characterized, showing nematic liquid crystal properties both before and after degradation. Herein, we present that, [...] Read more.
Poly(L-lactide) is capable of self-assembly into a nematic mesophase under the influence of temperature and mechanical stresses. Therefore, subsequent poly(L-lactide) films were obtained and characterized, showing nematic liquid crystal properties both before and after degradation. Herein, we present that, by introducing β-cyclodextrin into the polymer matrix, it is possible to obtain a chiral nematic mesophase during pressing, regardless of temperature and time. The obtained poly(L-lactide) films exhibiting liquid crystal properties were subjected to degradation tests and the influence of degradation on these properties was determined. Thermotropic phase behavior was investigated using polarized optical microscopy, X-ray diffraction, and differential scanning calorimetry. The degradation process demonstrated an influence on the liquid crystal properties of pressed polymer films. The colored planar texture of the chiral nematic mesophase, which was not observed prior to degradation in films without the addition of β-cyclodextrin, appeared after incubation in water as a result of the entrapment of degradation products in the polymer matrix. These unusual tailor-made properties, obtained in liquid crystals in (bio)degradable polymers using a simple method, demonstrate the potential for advanced photonic applications. Full article
(This article belongs to the Special Issue Biosynthesis and Biodegradation—Eco-Concept for Polymer Materials)
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