Electrospinning Academic News

Electrospinning Equipment: Enhancing Lithium-Ion Battery Anodes with Silicon-Carbon Nanofibers in Porous Biochar 2025-04-18

With the development of electric vehicles and renewable energy storage, the demand for high - performance lithium - ion batteries grows. Traditional graphite anodes are insufficient. Silicon - based materials have high potential but face volume expansion issues. A team from Lanzhou University of Technology synthesized a new silicon - carbon nanofiber/carbonized Poria powder composite via electrospinning and heat treatment. The composite shows excellent electrochemical performance, such as high capacity, good cycling stability, and enhanced rate performance, offering a promising solution for lithium - ion battery anodes.

Electrospinning Equipment: Curcumin-Loaded PCLBSA Composite Fibers via Surfactant-Free Electrospinning for Biomedical Use 2025-04-18

This research by China University of Mining and Technology's team focuses on surfactant - free emulsion electrospinning with the use of electrospinning machine. An ethyl acetate/water system is used to prepare curcumin - loaded PCL/BSA composite fibers. BSA concentration and oil - to - water ratio affect emulsion droplets and fiber properties. As BSA rises, droplets shrink and fibers become uniform. A higher oil - to - water ratio increases fiber diameter. Fibers with a 7:3 ratio show excellent mechanicals and drug - release. The super - hydrophilic fibers have great potential in biomedical applications, aiming to expand PCL's use in this field.

Electrospinning Equipment: Electrospun Janus Composite Fiber Membrane and its Separation and Antibacterial Properties 2025-04-17

In this study, a PVDF@MC/PAN@MC composite fiber membrane with a Janus structure was successfully fabricated through electrospinning machine. Polyvinylidene fluoride (PVDF) and polyacrylonitrile (PAN) were used as raw materials, and N - halamine antibacterial agent 1 - chloro - 2,2,5,5 - tetramethyl - 4 - imidazolidinone (MC) was added to endow the membrane with antibacterial properties. The prepared membrane had one side hydrophilic and underwater oleophobic, and the other side hydrophobic and underwater oleophobic. It showed certain separation performance for mud, oil - water emulsion, metal ions, and organic dyes. Moreover, it had a good antibacterial effect on Staphylococcus aureus and Escherichia coli. However, due to the low content of MC, it couldn't achieve rapid sterilization in a short time. This research provides new ideas for the development of high - performance separation membranes and promotes the application of Janus membranes in separation and antibacterial fields.

Electrospinning Equipment: A Liquid Diode-based Smart Bandage with Ultrasensitive pH Sensing Ability for Chronic Wound Management 2025-04-17

This research focuses on chronic wound management. A novel smart bandage is developed with the hlep of electrospinning machine, integrating a biocompatible liquid diode membrane and an ultrasensitive 3D polyaniline (M - PANI) network - based pH biosensor. The liquid diode enables unidirectional drainage of wound exudate, while the M - PANI - based sensor can dynamically monitor the wound pH environment. The sensor exhibits a high sensitivity of 61.5 mV/pH and a wide detection range from 4.0 to 10.0. It also shows excellent stability after 48 - hour dynamic testing and 28 - day storage. Simulated skin and rat experiments verify its practicality and potential for clinical applications, offering a new approach for advanced wound care and home - based wound management.

Electrospinning Equipment: Electrospun Hydrophobically Modified Polyacrylic Acid Hydrogel Nanofibers for Ciprofloxacin Removal 2025-04-16

The global water scarcity crisis is worsened by water pollution from persistent pharmaceuticals like ciprofloxacin (CIP). This study fabricated electrospun acrylic acid (AAc)-based hydrogels modified with n-hexadecyl acrylate (C16A) via electrospinning machine. The hydrogel with 35 mol% C16A showed optimal morphology, achieving a 98% CIP removal efficiency. Adsorption followed the pseudo-second-order model, indicating chemisorption, and the Langmuir model, suggesting monolayer adsorption. Electrostatic and π-π interactions were the main adsorption mechanisms. These results highlight the potential of AAc-based hydrogels in sustainable wastewater treatment. However, challenges like irreversible adsorption exist. Future research will focus on enhancing reusability and evaluating performance in complex real - wastewater matrices.

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.

Academic News