Electrospinning Academic News

Electrospinning Equipment: Green Chemistry in Flexible Electrodes for Wearable Technology 2025-04-15

This paper presents a study on the development of flexible electrodes and piezoelectric sensors for wearable technology. The researchers synthesized flexible electrodes by combining biosynthesized silver nanoflakes from durian waste with Ecoflex, ensuring high conductivity and biocompatibility. An electrospinning machine was used to fabricate PVDF/BaTiO₃ composite nanofibers for the piezoelectric layer. The assembled device can efficiently capture mechanical energy, maintain stable performance under various pressures, and endure up to 10,000 cycles. This green chemistry - based approach not only offers a sustainable solution for electrode fabrication but also paves the way for advanced wearable sensors in health monitoring and human - machine interaction.

Electrospinning Equipment: Electrospun Membranes with High Resilience by In situ Crosslinking 2025-04-15

In the realm of tissue engineering and regenerative medicine, elastic biodegradable scaffolds are crucial for soft tissue regeneration and small - diameter vascular grafts (SDVGs). However, existing materials like PCL have drawbacks. A team from Tianjin University fabricated electrospun membranes and tubular scaffolds with enhanced elasticity. They used in - situ photocrosslinking of PGS - MA and PEGDA at various PCL/PGS ratios, with an electrospinning device. The crosslinked structures offer good elasticity, low hemolysis, and proper cytocompatibility. As PGS content rises, the tensile strength of membranes and the resilience of scaffolds improve. The 5PCL/5PGS tubular scaffold's compliance matches that of the natural saphenous vein, and 4PCL/6PGS has the highest compliance. This method holds great potential for SDVGs in vascular regeneration.

Electrospinning Equipment: Poly(β-amino) Ester Electrospun Dressings with Controlled Release 2025-04-14

Skin injuries can lead to chronic wounds, which are hard to heal and prone to infection. This study aimed to develop a novel wound dressing. The researchers synthesized two PBAE macromers from isobutylamine and PEGDA. These macromers had different hydrophobicity and crystallinity. Using an electrospinning machine, they prepared membranes with PEO, which were then UV - cured. The membranes' properties resembled those of their respective macromers. Ciprofloxacin was loaded into the membranes. The drug release showed a burst effect followed by slow release. Kirby - Bauer and Kill time tests demonstrated the antibacterial activity of the released drug against E. coli. UV cross - linking improved the membranes' stability in water. This research shows the potential of PBAE - based electrospun membranes in wound dressing, though their cytotoxicity needs further study.

Electrospinning Equipment: Electrospun and Dip-Coated PI/PTFE@PI Nanocomposite Dielectric Membranes 2025-04-11

This study aimed to develop advanced dielectric materials for high - frequency telecommunication. PI/PTFE@PI nanocomposite membranes were prepared by electrospinning and dip - coating. The electrospinning machine and specific parameters were used to make nanofiber membranes first, which were then processed by dip - coating. These membranes showed dielectric constants between 1.24 - 2.00 and low dielectric losses from 0.008 - 0.071 at 8.2 - 12.4 GHz. They had good thermal stability with Tmax ranging from 641 - 659°C and Td5% from 407 - 450°C. The CM - 20% membrane had a tensile strength of 26.8 MPa. The water absorption rate of CM - 40% was only 0.5%. These results indicate the membranes' potential for high - performance telecommunications applications, especially in high - frequency environments.

Electrospinning Equipment: A Novel Janus Membrane for Oil-Water Separation & Cr(VI) Removal 2025-04-11

A novel multifunctional Janus membrane, PCP@PAN - PEI, was developed through layer - by - layer electrospinning assembly. It has distinct asymmetric wettability, with the Janus - PCP side being superhydrophobic (WCA = 154.4 ± 0.6°) and the Janus - PAN - PEI side being superhydrophilic (WCA = 0°). This membrane exhibits excellent separation performance for oil - water mixtures (flux: 7428.5 L·m⁻²·h⁻¹, efficiency > 99.5%) and emulsions (flux: 1797.7 L·m⁻²·h⁻¹, efficiency > 98.1%), along with good cycling stability. The relevant separation mechanisms were explored. Moreover, it can effectively remove 78.7% of Cr(VI) at pH = 3. The adsorption behavior follows the pseudo - second - order and Langmuir models. The PCP@PAN - PEI Janus membrane holds great promise for oil - water separation and heavy metal removal in wastewater treatment, and this research offers a practical strategy for the design of multifunctional Janus membranes.

Electrospinning Equipment: Effect of Key Factors on Electrospun PA-11 Fibers 2025-04-10

This study delves into the influence of multiple factors on electrospun PA11 fibers via electrospinning machine. Solution concentration is crucial; a 6% (w/v) PA11/FA solution can't form fibers, while 10% (w/v) yields smoother ones. Voltage's impact on fiber morphology is complex and related to the tip - to - collector distance. The optimal distance for electrospinning PA11/FA solution is 12 cm. Flow rate also significantly affects fiber diameter. Additionally, the introduction of a second electric field, especially with two voltage - increasing metal rings, remarkably improves fiber quality, reducing the average diameter to 145.7 ± 23.7 nm with minimal bead formation. These findings are essential for optimizing the electrospinning process of PA11 fibers.

Electrospinning Equipment: Selective Emission Fabric for All-Day Passive Cooling in Personal Thermal Management 2025-04-10

This study focuses on developing a novel radiative cooling fabric for efficient indoor and outdoor use. By employing electrospinning technology with an electrospinning device, PVDF - PVP fabric is prepared. The resulting FP - 12 - 6 fabric has a full - scale structure with nano - level semi - interpenetrating pores and micro - level fibers. This structure, along with the selective emission characteristics of PVDF, enables it to achieve a 94% reflectivity in the solar band and only 6% in the mid - infrared band. The fabric shows a radiation emissivity of 81% in the 8 - 13μm band and a transmittance of 25% in the 2.5 - 25μm band. Theoretical calculations indicate net cooling powers of 60 W/m² outdoors and 26 W/m² indoors. Actual tests verify its significant cooling effects, both indoors and outdoors, solving the compatibility issue between indoor and outdoor cooling and contributing to personal thermal management.

Electrospinning Equipment: Fabrication and Characterization of Electrospun PANI - based Enzymatic Biofuel Cell Anode 2025-04-09

This study fabricated a fibrous bioanode for enzymatic biofuel cells (EBFCs) using an electrospinning machine. Composite fibers of polyaniline and polystyrene were deposited on a glassy carbon electrode and immobilized with glucose oxidase. Material characterization showed good properties. Electrochemical studies via CV, LSV, and EIS indicated efficient electron transfer and glucose - sensing ability. The anode had excellent electrical response at 20 mM glucose and good stability. The electrospinning process enhanced enzyme immobilization. This work offers a way to reduce mediator dependence in EBFCs and paves the way for developing miniaturized and wearable EBFCs.

Electrospinning Equipment: One-Step Electrospinning of Cellulose@g-C₃N₄@ZIF-67 Membranes for Enhanced PMS Activation 2025-04-09

This article focuses on a one - step fabricated cellulose@g - C₃N₄@ZIF-67 membrane with electrospinning machine. It activates peroxymonosulfate for high - efficiency photodegradation of organic pollutants in wastewater. The membrane shows good stability and recycling performance, with great potential in wastewater treatment.

Electrospinning Equipment: Tannic Acid-Crosslinked PLCL/Gelatin Electrospun Membranes for Blueberry Preservation 2025-04-08

This study fabricated poly(lactic - co - caprolactone)/Gelatin/Tannic acid (PLCL/GEL/TA) nanofibrous membranes via electrospinning and cross - linking. The membranes' microstructures, mechanical and wetting properties, biodegradability, antioxidant and antibacterial activities, and cytotoxicity were comprehensively characterized. The results indicated that all electrospun membranes had smooth and uniform morphologies. The addition of TA enhanced the membranes' mechanical strength, wettability, biodegradability, and bioactivities. TA was released in a controlled and sustained manner. The membranes were non - toxic to NIH/3T3 cells. When applied to blueberries, PLCL/GEL/TA membranes effectively inhibited decay and weight loss, with the 10% TA - containing membrane showing the best preservation performance. Overall, these membranes have great potential as innovative packaging materials for food preservation, offering a sustainable solution to reduce fruit waste.

Electrospinning Equipment: Fabrication and Physicomechanical Performance of κ- carrageenan/casein Nanofibers 2025-04-08

This study explores κ-carrageenan/casein nanofibers via electrospinning machine. Casein's electrospinnability is restricted by its traits. The impacts of ethanol content, temperature, and κ-carrageenan concentration on nanofiber properties were investigated. Dispersions at 50% ethanol, pH 10, and 60 °C form EMs with few bead defects. EMs with 1 wt% κ - carrageenan have good fiber qualities. After exposure to 100% relative humidity, they absorb much water, transform, and show improved mechanical properties. The interaction between κ-carrageenan and casein enhances nanofiber structure. Low K-carrageenan levels are optimal. Standalone EMs with over 98 wt% casein were made, promising for various applications.

Electrospinning Equipment: The Versatility of Electrospun Janus Wound Dressings 2025-04-07

Recently, a research review was published in Reviews in Chemical Engineering, exploring electrospun Janus wound dressings produced by electrospinning machine. Electrospun nanofibers show potential as wound dressings, and Janus nanofibers have more versatility. They can be made by side - by - side electrospinning with an eccentric spinneret. Janus nanofibers have unique multi - chamber structures, offering advantages like synergistic healing effects. However, challenges remain in mass production, clinical application, and mechanism research. Future efforts are needed to overcome these and realize their full potential in wound management.

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