Electrospinning Academic News

Electrospinning Equipment:Spiral-structured Electrospun Conductive Conduits Filled with Aligned Nanofibers for Peripheral Nerve Regeneration 2025-03-28

Peripheral nerve injury (PNI), with over 5 million annual global cases, currently lacks an ideal treatment as autologous nerve grafting has limitations. To address this, researchers developed helical - structured electrospun conductive nerve guidance conduits (F - P/H - P) filled with oriented nanofibers. By combining hydroxyethyl cellulose (HEC) and poly(3,4 - ethylenedioxythiophene) (PEDOT), the conduit's conductivity was enhanced. In vitro, F - P/H - P significantly promoted Schwann cells (SCs) and PC12 cells adhesion and proliferation, and under electrical stimulation, further increased nerve - related protein expression. In vivo, using a rat sciatic nerve defect model, F - P/H - P conduits accelerated nerve regeneration, angiogenesis, and functional recovery. This study demonstrates the potential of F-P/H-P conduits as an effective alternative for peripheral nerve repair.

Electrospinning Equipment:Antibacterial Nanofiber Membranes via Coaxial Electrospinning for Enhanced Air Filtration 2025-03-28

In this research, ZnO@PVDF - HFP antibacterial nanofiber membranes were prepared via coaxial electrospinning. The shell - feeding rate and Zn(Ac)₂·2H₂O concentration affected membrane properties. As the shell - feeding rate increased, fiber diameter decreased, improving filtration efficiency. At a shell - feeding rate of 0.60 mL/h and 1.5 wt% Zn(Ac)₂·2H₂O, the membrane achieved 99.91% filtration efficiency with 80.70 Pa pressure drop.The membrane showed strong antibacterial activity against Escherichia coli and Staphylococcus aureus. Zebrafish survival experiments confirmed its good biological safety. This study promotes the development of antibacterial air - filtration materials, with potential applications in medical masks and air - purification devices.

Electrospinning Equipment: An infrared-transparent textile with high drawing processed Nylon 6 nanofibers 2025-03-27

This research developed an infrared - transparent textile using highly drawn Nylon 6 nanofibers via electrospinning. It modified the molecular and crystal structures, reducing IR absorption and reflection. Tests indicated excellent cooling and wearability, with about 20% indoor cooling energy savings. It's a novel solution for passive cooling and energy - saving in personal thermal management.

Electrospinning Equipment: Investigating ZnO-PAN Composite Membrane for Dye Removal in Wastewater Treatment 2025-03-27

A ZnO - PAN composite membrane was developed through electrospinning machine. It shows excellent electrocatalytic and permeation properties, high dye - removal efficiency, good long - term stability, and strong antifouling ability. This offers new solutions for wastewater treatment, and future research can optimize its preparation and performance.

Electrospinning Equipment: Synergistic Enhancement of Curcumin@TiO₂ Nanofibers via Triaxial Electrospinning 2025-03-26

This study fabricates cellulose acetate - based curcumin@TiO₂ core - shell nanofibers via improved triaxial electrospinning. It resolves two electrospinning controversies: drug loss and molecule diffusion. The drug encapsulation rates of F1 and F3 are 91.7±5.7% and 97.3±4.8% respectively. Compared with traditional nanofibers, the core - shell ones exhibit enhanced properties. Their hydrophobicity improves with a water contact angle of 114.2±3.9°. The release curve of curcumin is prolonged, and TiO₂ distributes richly on the surface. As a result, antibacterial performance and UV protection efficiency are elevated. This research paves the way for polymeric excipient transformation and understanding core - shell nanomaterials.

Electrospinning Equipment: Cost-effective Fabrication of Mesoporous Alumina Nanofibers via Electrospinning 2025-03-26

In this research, inexpensive precursors such as boehmite, PVA, and silica sol were utilized to fabricate mesoporous alumina nanofibers through electrospinning. Boehmite enabled a three - fold increase in the ceramic/polymer precursor ratio without disrupting the electrospinning process, improving fiber quality and reducing brittleness. XRD, FESEM, FTIR and other analyses were employed to characterize the fibers. The results showed that adding silica and increasing the calcination temperature decreased the fiber diameter, and silica inhibited the phase transformation of alumina, enhancing the thermal stability of the γ - Al₂O₃ phase. The synthesized γ - Al₂O₃ mesoporous fibers had a surface area of 204 m²/g and an average pore diameter of 9.5 nm, making them suitable for catalyst support applications. The use of low - cost precursors not only reduced production costs but also demonstrated potential for industrial - scale production.

Electrospinning Equipment: Metal-Wire Needle-Free Electrospun Polyimide Nanofibers for Efficient High-Temperature PM₀.₃ Filtration 2025-03-25

In this study, researchers from South China University of Technology developed fine - diameter polyimide (PI) nanofiber membranes via a metal wire - based needle - free electrospinning machine technique. By adjusting the voltage from 60 kV to 80 kV in the electrospinning device, an average fiber diameter of 122 nm was achieved. These membranes showed a remarkable PM0.3 filtration efficiency of 99.99% and a low air flow resistance of 189.18 Pa. They maintained a PM0.3 filtration efficiency of 99.96% even after 5 - hour high - temperature treatment at 390 °C, demonstrating excellent thermal stability. With a hydrophobic contact angle of 130°±3°, the membranes are suitable for high - temperature particulate matter filtration, providing a new solution for industrial applications. However, the tensile stress of 6.355 MPa indicates that mechanical properties need further optimization.

Electrospinning Equipment: Polymer-less Electrospinning of Silica Nanofiber Membranes for High Safety Lithium Ion Battery Separators 2025-03-25

This paper first reports the synthesis of a fully silica membrane by polymer - free electrospinning with an electrospinning machine. Eliminating the carrier polymer simplifies the process. The separator shows high temperature resistance, with 89% porosity, 3.59 mS/cm ionic conductivity, and 1566% electrolyte uptake. In a lithium - ion battery half - cell with an LFP cathode, at 1C, the PSN separator has a 90 mAh/g specific capacity, 28% higher than PP. The preparation is simple, cost - effective, and scalable. This membrane is a promising separator for high - safety LIBs and helps realize all - electrospun batteries.

Electrospinning Equipment: Scalable PEI/AOPAN Composite Nanofiber Membrane for Efficient Cr(VI) Removal in Wastewater 2025-03-21

This study addresses heavy metal ion wastewater treatment using a scalable PEI/AOPAN composite nanofiber membrane made via needleless electrospinning and chemical modification. The membrane shows good fiber structure, hydrophilicity, and mechanical properties. It achieves a flux of 1146 L·m⁻²·h⁻¹ and 99.53% rejection rate for 100 mg/L Cr(VI) ions under 0.08 MPa pressure, following pseudo - first - order kinetics and Langmuir isotherm models.

Electrospinning Equipment: Coaxial Electrospun Nanofiber Membranes for Oil-Water Separation 2025-03-21

Poly(vinylidene fluoride) (PVDF) nanofiber membranes with multi-scale microporous channel structures were prepared via coaxial electrospinning and a sacrificial template strategy. Iron phytate nanoparticles were in situ grown on the fibers to fill the porous structures, creating an interlocking structure that significantly enhanced the stability and durability of the membrane. The modified membrane exhibited exceptional superhydrophilicity and underwater superoleophobicity, achieving over 99% separation efficiency for various oil-in-water emulsions and high water flux. Additionally, it demonstrated excellent resistance to crude oil contamination and adsorption capability for cationic dyes. This study provides new insights for developing high-performance and durable oil–water separation membranes.

Electrospinning Equipment:Electrospun PAN/PEG/Gd₂O₃ Composite Electrolytes for Enhanced Energy Storage 2025-03-20

This study explores the development of high-performance solid polymer electrolytes (SPEs) for lithium-ion batteries, addressing the safety and performance limitations of traditional liquid electrolytes. Using electrospinning technology, we fabricated composite nanofiber electrolytes from poly(acrylonitrile) (PAN) and poly(ethylene glycol) (PEG), doped with gadolinium oxide (Gd₂O₃). The Gd₂O₃ nanoparticles were synthesized via the sol–gel method and incorporated into the polymer matrix at various weight ratios. The resulting electrolyte membranes exhibited enhanced mechanical properties, thermal stability, and significantly improved ionic conductivity. Specifically, the PAN/PEG/LiTFSI/Gd₂O₃ membrane with 15% Gd₂O₃ achieved an ionic conductivity of 1.026×10⁻⁴ S cm⁻¹ at room temperature, a wide electrochemical stability window of 5.5 V, and a high lithium-ion transference number of 0.83. These findings suggest that Gd₂O₃-modified SPEs hold promise for future solid-state lithium batteries.

Electrospinning Equipment: New Method for Pore Optimization and Hydrophilic Modification of PTFE Nanofiber Membrane 2025-03-20

In the field of membrane separation for wastewater treatment, polytetrafluoroethylene (PTFE) nanofiber membranes have great potential due to their high stability. However, challenges like pore structure control and hydrophobicity limit their application. This study presents an innovative approach. By adjusting the mass ratio of PEO and PTFE in electrospinning and subsequent acetalization with PVA, the pore size is reduced from 288.5 nm to 161.3 nm, and the water contact angle decreases from 135.7° to 50.9°. The modified membrane shows a significant increase in water flux, reaching 1056.16 L·m⁻²·h⁻¹, and high rejection rates for carbon (99.3%) and SiO₂ (97.3%) particles. Moreover, it exhibits excellent hydrophilic stability in harsh environments and after friction, making it a promising option for wastewater treatment applications.

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