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Recent Advances in Electrospun Polymer Nanofibers

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

Deadline for manuscript submissions: 31 October 2025 | Viewed by 33407

Special Issue Editor


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Guest Editor
Center of Engineering and Exact Sciences, State University of West Paraná, Paraná, Brazil
Interests: polymer materials; electrospinning; nanofibers; eletrochemical sensors

Special Issue Information

Dear Colleagues,

In recent years, electrospun polymer nanofibers have attracted great interest due to their unique properties, such as high surface-to-volume ratio, porosity, flexibility, and mechanical performance. The electrospinning technique enables the production of nanofibers with different compositions and morphologies, expanding their applications in various fields. In the healthcare sector, nanofibers have been used for controlled drug delivery, tissue engineering, and advanced wound dressings due to their ability to mimic the extracellular matrix. In the environmental field, they are employed in water and air filtration thanks to their high efficiency in removing contaminants. Additionally, electrospun nanofibers have shown potential in sensors and electronic devices, offering high sensitivity and the ability to detect small environmental changes. In the energy sector, they are used in batteries and solar cells, improving efficiency and storage capacity. Recent advances include the development of hybrid and multifunctional nanofibers, which combine different materials to optimize their properties and further expand their applications. Thus, the future outlook is promising, with the expectation that electrospun nanofibers will play a crucial role in technological innovation and in solving global challenges.

Dr. Josiane Caetano
Guest Editor

Manuscript Submission Information

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Keywords

  • electrospinning
  • nanofibers
  • hybrid nanofibers
  • biomedical applications
  • environmental applications
  • energy applications
  • nanotechnology

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Published Papers (2 papers)

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Research

21 pages, 2824 KB  
Article
Electrospun Polymeric Film in Red BF-4B Dye Degradation
by Andressa Giombelli Rosenberger, Eduarda Ballmann, Fabiana da Silva Lima, Josiane Caetano, Douglas Cardoso Dragunski, Edvani Curti Muniz and Aparecido Nivaldo Módenes
Polymers 2025, 17(19), 2669; https://doi.org/10.3390/polym17192669 - 2 Oct 2025
Viewed by 32276
Abstract
This work aims to apply polymeric PBAT/PLA fibers electrospun with TiO2 in the photodegradation of the dye Red BF-4B in an aqueous solution and the dye’s subsequent reuse. Initially, the influence of the solution pH was evaluated, and the results showed more [...] Read more.
This work aims to apply polymeric PBAT/PLA fibers electrospun with TiO2 in the photodegradation of the dye Red BF-4B in an aqueous solution and the dye’s subsequent reuse. Initially, the influence of the solution pH was evaluated, and the results showed more significant dye degradation at pH values below the pHpcz (7.42). Kinetic studies show that at 15 mg·L−1, the highest percentage of degradation occurs at 600 min of reaction time; however, degradation equal to (or greater than) 65% was observed at all evaluated concentrations, with the kinetic data being well fitted by the pseudo-first-order model. Additional studies demonstrated the reuse of polymeric films for dye removal, with removal efficiencies ranging from 86.60% to 93.07% over six consecutive reuse cycles. Each cycle consisted of a 600 min removal process, simulating repeated practical applications. After the photocatalytic process, the polymeric fibers remained cylindrical, with several fractures. Diameter decreases of 31.61% and 7.95% were observed after the first and sixth cycles, respectively, with possible exposure of TiO2. The vibrational spectra indicate changes in the bands at 1755 and 1714 cm−1, attributed to C=O (PLA) and C-O (PBAT) stretches, respectively, suggesting a possible conformational change in the polymers. The thermal profiles showed only slight changes after the cycles. X-ray diffractograms indicate that degradation of the polymeric matrix leads to greater exposure of the embedded TiO2 particles. The combined results from different characterization techniques provide evidence of the degradation of the polymeric material. Full article
(This article belongs to the Special Issue Recent Advances in Electrospun Polymer Nanofibers)
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23 pages, 9967 KB  
Article
Analysis of Chemical Heterogeneity in Electrospun Fibers Through Hyperspectral Raman Imaging Using Open-Source Software
by Omar E. Uribe-Juárez, Luis A. Silva Valdéz, Flor Ivon Vivar Velázquez, Fidel Montoya-Molina, José A. Moreno-Razo, María G. Flores-Sánchez, Juan Morales-Corona and Roberto Olayo-González
Polymers 2025, 17(13), 1883; https://doi.org/10.3390/polym17131883 - 6 Jul 2025
Viewed by 761
Abstract
Electrospinning is a versatile technique for producing porous nanofibers with a high specific surface area, making them ideal for several tissue engineering applications. Although Raman spectroscopy has been widely employed to characterize electrospun materials, but most studies report bulk-averaged properties without addressing the [...] Read more.
Electrospinning is a versatile technique for producing porous nanofibers with a high specific surface area, making them ideal for several tissue engineering applications. Although Raman spectroscopy has been widely employed to characterize electrospun materials, but most studies report bulk-averaged properties without addressing the spatial heterogeneity of their chemical composition. Raman imaging has emerged as a promising tool to overcome this limitation; however, challenges remain, including limited sensitivity for detecting minor components, reliance on distinctive high-intensity bands, and the frequent use of commercial software. In this study, we present a methodology based on Raman hyperspectral image processing using open-source software (Python), capable of identifying components present at concentrations as low as 2% and 5%, even in the absence of exclusive bands of high or medium intensity, respectively. The proposed approach integrates spectral segmentation, end member extraction via the N-FINDR algorithm, and analysis of average spectra to map and characterize the chemical heterogeneity within electrospun fibers. Finally, its performance is compared with the traditional approach based on band intensities, highlighting improvements in sensitivity and the detection of weak signals. Full article
(This article belongs to the Special Issue Recent Advances in Electrospun Polymer Nanofibers)
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