Advances and Trends in Bio-Based Electrospun Nanofibers

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Bioactive Coatings and Biointerfaces".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1339

Special Issue Editors


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Guest Editor
School of Chemistry and Food, Federal University of Rio Grande, Rio Grande 96203-900, Brazil
Interests: bioactives; biopolymers; encapsulation; nanofibers

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Guest Editor
Industrial Technology Laboratory, School of Chemistry and Food, Federal University of Rio Grande FURG, Rio Grande 96203-900, RS, Brazil
Interests: chemical and food engineering; sustainable industrial processes and advanced materials; adsorption technologies; food drying; separation processes; wastewater treatment; waste valorization; green chemistry; the development and characterization of biopolymers; chitosan, and nanomaterials for environmental and food industry applications; reaction kinetics; heterogeneous catalysis; advanced oxidation processes
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Special Issue Information

Dear Colleagues,

 Electrospinning is a well-established technique for synthesizing nanofibers. The morphology of the resulting electrospun fibers is influenced by various factors, including the properties of the solution, processing conditions, and ambient environment. It is important to note that most nanofibers developed so far are based on synthetic polymers. Therefore, studying the effect of electrospinning parameters on the development of bio-based nanofibers has become a growing area of interest.

Bio-based nanofibers have gained attention across various fields due to their unique properties, particularly their high surface area-to-volume ratio, nontoxicity, biocompatibility, and biodegradability. In the biomedical field, they are widely used as scaffolds for tissue engineering, supporting cell growth and regeneration. In the food industry, nanofiber-based packaging materials offer improved barrier properties, extending the shelf-life of food products. In pharmaceuticals, nanofibers play a crucial role in drug delivery systems, enabling the controlled release of therapeutic agents. They are also employed in the development of modified electrodes for biosensors, improving the sensitivity and accuracy of quantitative analyses. Furthermore, bio-based nanofibers have applications in filtration, environmental remediation, and enzyme immobilization.

Topics of interest include, but are not limited to, the following:

  • Active and intelligent edible bio-based nanofibers for shelf-life extension;
  • The encapsulation of bioactives or enzymes in bio-based nanofibers;
  • The adsorption of organic compounds using bio-based nanofibers;
  • The development of bio-based nanofibers as drug delivery carriers;
  • Bio-based nanofibers for electrochemical biosensors;
  • Functional bio-based nanofiber scaffolds for biomedical applications. 

Dr. Bruna Silva de Farias
Prof. Dr. Pinto Luiz Antonio de Almeida
Guest Editors

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Keywords

  • bioactive coatings
  • bioactive films
  • biodegradable materials
  • drug delivery
  • electrospinning
  • food packing
  • tissue engineering

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Published Papers (2 papers)

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Research

11 pages, 1851 KiB  
Article
The Influence of Two Spinning Processes of T800 Grade Carbon Fibers on the Mechanical Properties of Thermoplastic Composite Material
by Xu Cui, Xuefeng Sun, Weiguo Su, Shuo Wang and Han Guo
Coatings 2025, 15(1), 90; https://doi.org/10.3390/coatings15010090 - 15 Jan 2025
Viewed by 455
Abstract
Two types of T800 grade carbon fibers, produced using distinct spinning processes, were utilized to fabricate thermoplastic prepregs via the hot melt method. These prepregs were subsequently employed to produce thermoplastic composites. A universal testing machine was used to assess the tensile, bending, [...] Read more.
Two types of T800 grade carbon fibers, produced using distinct spinning processes, were utilized to fabricate thermoplastic prepregs via the hot melt method. These prepregs were subsequently employed to produce thermoplastic composites. A universal testing machine was used to assess the tensile, bending, and interlaminar shear properties of the composites, evaluating the impact of the two different spinning processes on their mechanical characteristics. The experimental results indicate that the dry spray wet spinning carbon fiber (T800-DJWS) exhibits a smoother surface, more regular cross-section, and more uniform distribution compared to the wet spinning carbon fiber (T800-WS), enhancing the prepreg preparation via the hot melt method. The T800-DJWS/PAEK composite demonstrates a tensile strength that is 706 MPa higher than the T800-WS/PAEK composite, while the latter exhibits a bending modulus 31 GPa higher than the former. Full article
(This article belongs to the Special Issue Advances and Trends in Bio-Based Electrospun Nanofibers)
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12 pages, 2211 KiB  
Article
Microbial Transglutaminase-Mediated Modification of Heat-Denatured Whey Proteins for the Preparation of Bio-Based Materials
by Manar Abdalrazeq, Diaa Aref, Loredana Mariniello and Concetta Valeria Lucia Giosafatto
Coatings 2025, 15(1), 66; https://doi.org/10.3390/coatings15010066 - 9 Jan 2025
Viewed by 708
Abstract
This study sheds light on the potential of microbial transglutaminase (mTG)-mediated modification to enhance the properties of heat-denatured whey protein-based films. In this study, we investigated the biochemical modification of heat-denatured whey proteins (WPs) using mTG, an enzyme known for the ability of [...] Read more.
This study sheds light on the potential of microbial transglutaminase (mTG)-mediated modification to enhance the properties of heat-denatured whey protein-based films. In this study, we investigated the biochemical modification of heat-denatured whey proteins (WPs) using mTG, an enzyme known for the ability of crosslinking reactions. By introducing ε-(γ-glutamyl)-lysine crosslinks via an acyl transfer reaction, mTG enhances the properties of bio-based materials. In this research, heated WPs were demonstrated to effectively serve as mTG substrates. The preparation of crosslinked bio-based material was achieved using a casting method under alkaline conditions (pH 12) in the presence of glycerol (40% w/w), which was added as a plasticizer to the film-forming solution (FFS). A comprehensive characterization of the FFSs and the resulting materials was carried out. The FFSs were quite stable as evidenced by Zeta potential values that were always around 30/40 mV regardless of the presence of the enzyme. The enzymatic modification increased the elongation at break of the materials from 10.4 ± 4.9 MPa to 27.6 ± 8.9 MPa, while decreasing both tensile strength and Young’s modulus, thereby making the resulting material more extensible. On the other hand, the enzyme affected both the CO2 and O2 barrier properties, with permeability values for these gases being 0.90 cm3 mm m−2 day−1 kPa and 0.26 cm3 mm m−2 day−1 kPa, respectively, when the films were cast without the enzymatic treatment, but decreasing to 0.14 ± 0.02 cm3 mm m−2 day−1 kPa (CO2) and 0.02 ± 0.02 cm3 mm m−2 day−1 kPa (O2) in the presence of 24 U/g of mTG. These novel materials, prepared from renewable sources, could potentially be used in the food packaging field to replace/reduce the highly pollutant petroleum-based ones. Full article
(This article belongs to the Special Issue Advances and Trends in Bio-Based Electrospun Nanofibers)
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