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Polymers
Special Issues
Electrospinning of Polymer Systems
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Electrospinning of Polymer Systems

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 2075

Special Issue Editors

Prof. Dr. Linge Wang

E-Mail Website
Guest Editor
School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
Interests: soft matter; block copolymers; polymer characterization; small-angle X-ray scattering; electrospinning; tissue engineering; drug delivery; polymer vesicles; polymeric optical film; thermal energy storage materials
Prof. Dr. Paul Topham

E-Mail Website
Guest Editor
Aston Institute of Materials Research (AIMR), Chemical Engineering and Applied Chemistry, Aston University, Birmingham B4 7ET, UK
Interests: polymer science; synthesis; block copolymer self-assembly; organic photovoltaics; polymer nanotechnology; electrospinning
Special Issues, Collections and Topics in MDPI journals
Dr. Qianqian Yu

E-Mail Website
Guest Editor
School of Emergent Soft Matter, South China University of Technology, Guangzhou 510640, China
Interests: biomaterials; nanomedicine; electrospinning; tissue engineering; drug delivery; cancer therapy

Special Issue Information

Dear Colleagues,

Electrospinning is a fascinating technology that has gained a lot of attention in recent years as a simple method for producing exquisite polymer nanofibers. It is a process that uses an electric force to create ultrafine fibres from a polymer solution. These resulting fibres have controllable morphology with a high surface area-to-volume ratio, rendering them useful in a wide variety of applications such as smart fabrics, filtration, tissue engineering, drug delivery, cancer therapy, to name but a few. In addition to its biomedical applications, electrospinning has also been explored in the fields of electronics and energy. For example, electrospinning can be used to create nanofibers for use in batteries and fuel cells, as well as for producing high-performance sensors and electronic devices.

Thus, we have created a Special Issue with the topic "Electrospinning of Polymer Systems" which is available to academics and scientists from all over the world who want to contribute to polymer science with a broad scope encompassing the design, fabrication, modification, and/or application of polymeric nanofibres, including polymeric blends and polymer composites, for a variety of applications such as biomedical, smart fabrics, catalysis, tissue engineering, filtration, etc. Electrospinning processing and subsequent characterization (chemical, physical, thermal, mechanical and performance properties) of polymer systems are considered.

The scope of the Special Issue will be broad, with a focus on the design and fabrication of polymer nano- and microfibres via electrospinning for cutting-edge applications.

Prof. Dr. Linge Wang
Prof. Dr. Paul Topham
Dr. Qianqian Yu
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

  • electrospinning
  • polymer nanofibres
  • nanofibrous membranes
  • biomedicine and healthcare
  • tissue engineering
  • drug delivery
  • fuel cells and thermal storage
  • textiles and fabrics
  • sensors
  • hybrid materials

Published Papers (3 papers)

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Research

29 pages, 8708 KiB  
Article
Chitosan/Hyaluronate Complex-Coated Electrospun Poly(3-hydroxybutyrate) Materials Containing Extracts from Melissa officinalis and/or Hypericum perforatum with Various Biological Activities: Antioxidant, Antibacterial and In Vitro Anticancer Effects
by Ina Anastasova, Milena Ignatova, Nevena Manolova, Iliya Rashkov, Nadya Markova, Reneta Toshkova, Ani Georgieva, Mariana Kamenova-Nacheva, Antoaneta Trendafilova, Viktoria Ivanova and Tsvetelina Doncheva
Polymers 2024, 16(15), 2105; https://doi.org/10.3390/polym16152105 - 24 Jul 2024
Viewed by 229
Abstract
The present study aimed to fabricate innovative fibrous materials with various biological activities from poly(3-hydroxybutyrate), sodium hyaluronate (HA), chitosan (Ch), Melissa officinalis (MO), Hypericum perforatum (HP) extract, or a combination of both extracts. Electrospinning or electrospinning followed by dip coating and the subsequent [...] Read more.
The present study aimed to fabricate innovative fibrous materials with various biological activities from poly(3-hydroxybutyrate), sodium hyaluronate (HA), chitosan (Ch), Melissa officinalis (MO), Hypericum perforatum (HP) extract, or a combination of both extracts. Electrospinning or electrospinning followed by dip coating and the subsequent formation of a polyelectrolyte complex were the methods used to prepare these materials. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and attenuated total reflection–Fourier transform infrared spectroscopy (ATR–FTIR) were applied for investigating the morphology of materials, their thermal characteristics, and their surface chemical composition. The composition and design of the mats had an influence on the in vitro release behavior of the main bioactive compounds present in the MO and HP extracts incorporated in the materials. It was found that as-created materials comprising a combination of both extracts and a Ch/HA complex exerted higher antioxidant activity than that of (non-)coated MO-containing mats and Ch/HA-coated mats containing HP. The novel materials manifested antibacterial efficacy towards the pathogenic bacteria S. aureus and E. coli, as evidenced by the performed microbiological screening. Furthermore, the mats possessed a great growth inhibitory effect on HeLa cancer cells but had a less pronounced effect on the growth of normal mouse BALB/3T3 fibroblasts. The loading of both extracts in the mats and the formation of coating led to the enhancement of the in vitro anticancer and antibacterial activities of the materials. Thus, the novel materials have potential for use in local cancer therapy as well as for use as wound dressings. Full article
(This article belongs to the Special Issue Electrospinning of Polymer Systems)
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15 pages, 10911 KiB  
Article
Imparting Photocatalytic and Antioxidant Properties to Electrospun Poly(L-lactide-co-D,L-lactide) Materials
by Ina Anastasova, Petya Tsekova, Milena Ignatova and Olya Stoilova
Polymers 2024, 16(13), 1814; https://doi.org/10.3390/polym16131814 - 26 Jun 2024
Viewed by 848
Abstract
The focus of the present study is on the fabrication of effective and eco-friendly hybrid electrospun materials based on poly(L-lactide-co-D,L-lactide) (PLDLLA), Fe3O4 and ZnO with an appropriate design for antioxidant and photocatalytic performance. The design of the fibrous [...] Read more.
The focus of the present study is on the fabrication of effective and eco-friendly hybrid electrospun materials based on poly(L-lactide-co-D,L-lactide) (PLDLLA), Fe3O4 and ZnO with an appropriate design for antioxidant and photocatalytic performance. The design of the fibrous materials was purposely tailored in one step by electrospinning and simultaneous electrospinning/electrospraying. Electrospinning of PLDLLA and its mixture with Fe3O4 resulted in the fabrication of materials with design type “in”. Furthermore, the surface of the electrospun PLDLLA and Fe3O4-in-PLDLLA was decorated with ZnO particles by simultaneous electrospraying, thus materials with design type “on” were obtained. In this case, quaternized N,N,N-trimethyl chitosan iodide (QCOS) was used as a sticking agent of ZnO particles onto the fiber’s surface. Different structures and morphologies of the electrospun materials were observed by SEM equipped with EDX and TEM. TGA and XRD analyses show that the presence of inorganic particles had an impact on the thermal properties and crystallinity of the electrospun materials. Furthermore, the material type “on” showed improved wettability with a water contact angle less than 90° compared to the material type “in” with an angle larger than 90°. In particular, the presence of Fe3O4 imparts complementary magnetic properties, while ZnO considerably increased the antioxidant activity of the fibrous materials. Materials with design type “on” displayed over 70% radical scavenging capacity in contrast to the material type “in” with less than 20% capacity within 30 min of contact. Moreover, the purposely tailored design type “on” materials provided excellent photocatalytic degradation of model organic pollutant methylene blue dye under UV light irradiation even after 5-fold use, and at the end of the fifth cycle these materials degraded more than 90% of the dye. These results reveal not only a strategy for the fabrication of electrospun hybrid bio-based materials with targeted design but also provide a promising, simple and effective way for mitigating water pollution. Full article
(This article belongs to the Special Issue Electrospinning of Polymer Systems)
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16 pages, 21716 KiB  
Article
Bilayer Scaffolds of PLLA/PCL/CAB Ternary Blend Films and Curcumin-Incorporated PLGA Electrospun Nanofibers: The Effects of Polymer Compositions and Solvents on Morphology and Molecular Interactions
by Areeya Tuanchai, Phakanan Iamphring, Pattaraporn Suttaphakdee, Medta Boupan, Jaroslav Mikule, Juan Pablo Pérez Aguilera, Patnarin Worajittiphon, Yujia Liu, Gareth Michael Ross, Stepan Kunc, Petr Mikeš, Masafumi Unno and Sukunya Ross
Polymers 2024, 16(12), 1679; https://doi.org/10.3390/polym16121679 - 13 Jun 2024
Viewed by 563
Abstract
Tissue engineering scaffolds have been dedicated to regenerating damaged tissue by serving as host biomaterials for cell adhesion, growth, differentiation, and proliferation to develop new tissue. In this work, the design and fabrication of a biodegradable bilayer scaffold consisting of a ternary PLLA/PCL/CAB [...] Read more.
Tissue engineering scaffolds have been dedicated to regenerating damaged tissue by serving as host biomaterials for cell adhesion, growth, differentiation, and proliferation to develop new tissue. In this work, the design and fabrication of a biodegradable bilayer scaffold consisting of a ternary PLLA/PCL/CAB blend film layer and a PLGA/curcumin (CC) electrospun fiber layer were studied and discussed in terms of surface morphology, tensile mechanical properties, and molecular interactions. Three different compositions of PLLA/PCL/CAB—60/15/25 (TBF1), 75/10/15 (TBF2), and 85/5/10 (TBF3)—were fabricated using the solvent casting method. The electrospun fibers of PLGA/CC were fabricated using chloroform (CF) and dimethylformamide (DMF) co-solvents in 50:50 and 60:40 volume ratios. Spherical patterns of varying sizes were observed on the surfaces of all blend films—TBF1 (17–21 µm) > TBF2 (5–9 µm) > TBF3 (1–5 µm)—caused by heterogeneous surfaces inducing bubble nucleation. The TBF1, TBF2, and TBF3 films showed tensile elongation at break values of approximately 170%, 94%, and 43%, respectively. The PLGA/CC electrospun fibers fabricated using 50:50 CF:DMF had diameters ranging from 100 to 400 nm, which were larger than those of the PLGA fibers (50–200 nm). In contrast, the PLGA/CC electrospun fibers fabricated using 60:40 CF:DMF had diameters mostly ranging from 200 to 700 nm, which were larger than those of PLGA fibers (200–500 nm). Molecular interactions via hydrogen bonding were observed between PLGA and CC. The surface morphology of the bilayer scaffold demonstrated adhesion between these two solid surfaces resembling “thread stitches” promoted by hydrophobic interactions, hydrogen bonding, and surface roughness. Full article
(This article belongs to the Special Issue Electrospinning of Polymer Systems)
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