Anion-conducting ionomer-based nanofibers mats are prepared by electrospinning (ES) technique. Depending on the relative humidity (RH) during the ES process (RH), ionomer nanofibers with different morphologies are obtained. The effect of relative humidity on the ionomer nanofibers morphology, ionic conductivity, and water uptake (WU) is studied. A branching effect in the ES fibers found to occur mostly at RH < 30% is discussed. The anion conductivity and WU of the ionomer electrospun mats prepared at the lowest RH are found to be higher than in those prepared at higher RH. This effect can be ascribed to the large diameter of the ionomer fibers, which have a higher WU. Understanding the effect of RH during the ES process on ionomer-based fibers' properties is critical for the preparation of electrospun fiber mats for specific applications, such as electrochemical devices.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7284427 | PMC |
| http://dx.doi.org/10.3390/polym12051020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Selective adsorption-photocatalytic synergistic breakdown of sulfamethazine in milk using loaded molecularly imprinted AgPO/TiO films.
Food Chem
March 2025
College of Food Science, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangzhou 510642, China. Electronic address:
To remove antibiotics from milk effectively, molecularly imprinted AgPO/TiO photocatalysts (MAT) were prepared using sulfamethazine (SMZ) as a template and butyl titanate as a functional monomer. Molecularly imprinted AgPO/TiO films (MATs) were constructed using quartz glass tubes as the carrier. The morphology and structure of MAT, the properties and mechanism of degradation of SMZ by MATs, and the nutrition and safety of milk were evaluated.
View Article and Find Full Text PDFElectrospun Poly(vinylidene fluoride) Nanocomposites with Ionic Liquid Functionalized Graphene Nanoplatelets by a Noncovalent Method for Piezoresistive Pressure Sensor Applications.
ACS Omega
November 2024
Materials Engineering Special Coordination, Universidade Federal de Santa Catarina (UFSC), Blumenau, SC 89036-256,Brazil.
Piezoresistive pressure sensors have been prepared by the electrospinning of poly(vinylidene fluoride) (PVDF) containing graphene nanoplatelets (GNP) functionalized using 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIM(OTf)) ionic liquid (IL). Optical microscopy demonstrated that the functionalized GNP powder presented particles with a smaller lateral size. The obtained mats were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, differential scanning calorimetry, electrical resistivity using two and four probes, and electromechanical testing with up to 32 load-unload cycles.
View Article and Find Full Text PDFPiezoelectric bilayer fibrous conduit with gellan/curcumin encapsulated alginate infilling for promotion of sciatic nerve regeneration in the rat models.
Int J Biol Macromol
November 2024
Department of Biomedical Engineering, Medical Engineering and Biology Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran. Electronic address:
Article Synopsis
- * A new piezoelectric bilayer fibrous conduit was developed, using advanced materials and embedded with Curcumin-loaded gellan to promote nerve growth and drug release during healing.
- * Results from in vivo testing demonstrated that this conduit significantly outperformed control groups in nerve regeneration metrics, suggesting it could be a viable option for nerve tissue engineering.*
Comparing solution blow spinning and electrospinning methods to produce collagen and gelatin ultrathin fibers: A review.
Int J Biol Macromol
December 2024
São Carlos Institute of Chemistry (IQSC), University of São Paulo (USP), São Carlos, SP, Brazil.
Ultrathin fibers have been used to design functional nanostructured materials for technological and biomedical applications. Combining the use of renewable and compatible sources with the emerging alternative SBS (solution blow spinning) technique opens new opportunities for material applications. In this review, we introduce the benefits of SBS over the classical electrospinning technique by following studies that use collagen or gelatin.
View Article and Find Full Text PDFFormulation, characterization and evaluation of minocycline hydrochloride loaded polyurethane/collagen nanofibers via electrospinning as wound dressings.
Drug Dev Ind Pharm
October 2024
Department of Basic Sciences of Engineering, Kayseri University, Kayseri, Turkey.
Objective: It was aimed to formulate minocyline. HCI loaded electrospun polyurethane/collagen (PU/Col) and polyurethane/collagen/polycaprolactone (PU/Col/PCL) nanofibers are intended for use as a wound dressing.
Methods: The effect of polymer ratio and addition of PCL on the morphology, diameter, drug delivery, encapsulation efficiency, mechanical properties, antibacterial activity against and , cytotoxicity, cell adhesion and proliferation were investigated.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!