Recent Progress of the Preparation and Application of Electrospun Porous Nanofibers

Polymers, Год журнала: 2023, Номер 15(4), С. 921 - 921

Опубликована: Фев. 12, 2023

Electrospun porous nanofibers have gained a lot of interest recently in various fields because their adjustable structure, high specific surface area, and large number active sites, which can further enhance the performance materials. This paper provides an overview common polymers, preparation, applications electrospun nanofibers. Firstly, polymers commonly used to construct structures main pore-forming methods by electrospinning, namely template method phase separation method, are introduced. Secondly, recent air purification, water treatment, energy storage, biomedicine, food packaging, sensor, sound wave absorption, flame retardant, heat insulation reviewed. Finally, challenges possible research directions for future study discussed.

Язык: Английский

---

Recent Combinations of Electrospinning with Photocatalytic Technology for Treating Polluted Water

Catalysts, Год журнала: 2023, Номер 13(4), С. 758 - 758

Опубликована: Апрель 15, 2023

Dyes, antibiotics, heavy metal ions, and bacteria are important sources of water pollution. How to solve these issues has become a problem in the fields science technology. People have developed variety technologies treat pollutants water. Photocatalytic technology came into being. As simple environmentally friendly treatment technology, it been widely studied by scientific community. Traditional powder photocatalysts cause secondary pollution environment not conducive recycling. Therefore, large specific surface area reusable membrane built electrospinning favorite today’s Nanofiber membranes prepared structures, which can meet needs different occasions. This review summarizes discusses research progress relationship between structure electrospun fiber membranes, their impacts on photocatalytic performance nanofiber membranes. The performance, challenges, future development directions with kinds techniques using photocatalysis pollutants, reviewed.

Язык: Английский

---

Electrospun Biomolecule-Based Drug Delivery Systems

Biomolecules, Год журнала: 2023, Номер 13(7), С. 1152 - 1152

Опубликована: Июль 20, 2023

Drug delivery, mainly a professional term in pharmaceutics, is field of interdisciplinary intersection and integration [...].

Язык: Английский

---

Dual-Step Controlled Release of Berberine Hydrochloride from the Trans-Scale Hybrids of Nanofibers and Microparticles

Biomolecules, Год журнала: 2023, Номер 13(6), С. 1011 - 1011

Опубликована: Июнь 18, 2023

In this nano era, nanomaterials and nanostructures are popular in developing novel functional materials. However, the combinations of materials at micro macro scales can open new routes for trans-scale products with improved or even performances. work, a brand-new hybrid, containing both nanofibers microparticles, was fabricated using sequential electrohydrodynamic atomization (EHDA) process. Firstly, microparticles loaded drug (berberine hydrochloride, BH) molecules cellulose acetate (CA) were solution electrospraying Later, these suspended into co-dissolved that contained BH hydrophilic polymer (polypyrrolidone, PVP) co-electrospun nanofiber/microparticle hybrids. The EHDA processes recorded, resultant showed typical hybrid topography, distributed all over nanofibers, which demonstrated by SEM assessments. FTIR XRD components within hybrids presented an amorphous state had fine compatibility each other. vitro dissolution tests verified able to provide designed dual-step release profiles, combination fast step from PVP through erosion mechanism sustained insoluble CA via Fickian diffusion mechanism. present protocols pave way

Язык: Английский

---

Electrospun Nanofibers as Chemosensors for Detecting Environmental Pollutants: A Review

Chemosensors, Год журнала: 2023, Номер 11(4), С. 208 - 208

Опубликована: Март 25, 2023

Electrospun nanofibers have shown their advantages for applications in a wide variety of scientific fields thanks to unique properties. Meanwhile, electrospinning is closely following the fast development nano science and nanotechnology move forward smaller (pico-technology), more complicated nanostructures/nanodevices order (all kinds arrays). Particularly, multiple-fluid has strong capability creating nanostructures from structural spinneret single-step straightforward “top-down” manner, holding great promise creation on large scale. This review just conclude state-of-art studies related topics also point out that future directions environmental detection require chemosensors, while improvement sensors requires new chemically synthesized functional substances, nanostructured materials, application convenience, integration or synergy. Based developments electrospinning, possibilities can be drawn detecting pollutants with electrospun as support platform.

Язык: Английский

---

Integrating Chinese Herbs and Western Medicine for New Wound Dressings through Handheld Electrospinning

Biomedicines, Год журнала: 2023, Номер 11(8), С. 2146 - 2146

Опубликована: Июль 30, 2023

In this nanotechnology era, nanostructures play a crucial role in the investigation of novel functional nanomaterials. Complex and their corresponding fabrication techniques provide powerful tools for development high-performance materials. study, advanced micro-nanomanufacturing technologies composite micro-nanostructures were applied to new type pharmaceutical formulation, aiming achieve rapid hemostasis, pain relief, antimicrobial properties. Briefly, an approach combining electrohydrodynamic atomization (EHDA) technique reversed-phase solvent was employed fabricate beaded nanofiber structure (BNS), consisting micrometer-sized particles distributed on nanoscale fiber matrix. Firstly, Zein-loaded Yunnan Baiyao (YB) prepared using solution electrospraying process. Subsequently, these suspended co-solvent containing ciprofloxacin (CIP) hydrophilic polymer polyvinylpyrrolidone (PVP) electrospun into hybrid structural microfibers handheld electrospinning device, forming EHDA product E3. The fiber-beaded morphology E3 confirmed through scanning electron microscopy (SEM) images. Fourier-transform infrared (FTIR) spectroscopy X-ray diffraction (XRD) analysis revealed amorphous state CIP BNS membrane due good compatibility between PVP. dissolution experiment that exhibits fast disintegration properties promotes CIP. Moreover, vitro drug release study demonstrated complete within 1 min. Antibacterial assays showed significant reduction number adhered bacteria BNS, indicating excellent antibacterial performance. Compared with traditional YB powders Chinese herbs, series advantages potential wound dressing. These include improved effect, sustained active ingredients from YB, convenient covering application, which resulted integration herbs Western medicine. This provides valuable insights multiscale micro-/nano-composite materials pioneers developments types medicines combination herbal medicines.

Язык: Английский

---

A Sequential Electrospinning of a Coaxial and Blending Process for Creating Double-Layer Hybrid Films to Sense Glucose

Sensors, Год журнала: 2023, Номер 23(7), С. 3685 - 3685

Опубликована: Апрель 2, 2023

This study presents a glucose biosensor based on electrospun core-sheath nanofibers. Two types of film were fabricated using different electrospinning procedures. Film F1 was composed solely nanofibers modified coaxial process. F2 double-layer hybrid through sequential and blending The bottom layer comprised process, in which pure polymethacrylate type A (Eudragit L100) used as the core section water-soluble lignin (WSL) phenol loaded sheath section. top contained oxidase (GOx) gold nanoparticles, distributed throughout polyvinylpyrrolidone K90 (PVP K90) single-fluid investigated process detail. experimental results demonstrated that had higher degradation efficiency β-D-glucose than F1, reaching maximum over 70% after 12 h within concentration range 10-40 mmol/L. is for colorimetric sensing 1-15 solution exhibited color deepened gradually with an increase concentration. Electrospinning flexible creating structures bio-cascade reactions, can provide simple template developing other nanomaterials.

Язык: Английский

---

Electrospun Scaffolds are Not Necessarily Always Made of Nanofibers as Demonstrated by Polymeric Heart Valves for Tissue Engineering

Advanced Healthcare Materials, Год журнала: 2024, Номер 13(16)

Опубликована: Март 30, 2024

Abstract In the last 30 years, there are ≈60 000 publications about electrospun nanofibers, but it is still unclear whether nanoscale fibers really necessary for tissue engineering scaffolds. The present report puts forward this argument and reveals that compared with microfibers diameter of ≈3 µm (named as “oligo‐micro fiber”) more appropriate scaffolds owing to their better cell infiltration ability caused by larger pores available nuclear deformation. To further increase pore sizes, poly(ε‐caprolactone) (PCL) fabricated using latticed collectors meshes. Fiber orientation leads sufficient mechanical strength albeit increases porosity. exhibit good biocompatibility improve infiltration. Under aortic conditions in vitro, performances satisfactory terms acute systolic hemodynamic functionality, except higher regurgitation fraction enlarged pores. This hierarchical scaffold sparse macropores oligo‐micro filaments provides new insights into design scaffolds, may provide living heart valves regenerative capabilities patients severe valve disease future.

Язык: Английский

---

A Correlation Analysis between Undergraduate Students’ Safety Behaviors in the Laboratory and Their Learning Efficiencies

Behavioral Sciences, Год журнала: 2023, Номер 13(2), С. 127 - 127

Опубликована: Фев. 2, 2023

Students' behaviors have a close relationship with their learning efficiencies, particularly about professional knowledge. Different types of should different influences. Disclosing the special between undergraduate students' conscious safety in laboratory experiments efficiencies is important for fostering them into talents. In this study, course entitled "Advanced Methods Materials Characterization" was arranged to contain three sections: theoretical classroom, eight characterization sequence, and self-training apply final examination, eighteen percent allocated examination questions issues. The scores section were associated total roll scores. Two quantitative relationships are disclosed. One score (y) subjective consciousness (x) experiments, as y = 5.56 + 4.83 x (R 0.9192). other grade point average behavior evaluation 0.51 0.15 0.7296). Undergraduate scientific laboratories need be verified positive knowledge efficiencies. This offers hint that improving enhancing awareness conducive efficiency

Язык: Английский

---

Fast and convenient delivery of fluidextracts liquorice through electrospun core-shell nanohybrids

Frontiers in Bioengineering and Biotechnology, Год журнала: 2023, Номер 11

Опубликована: Апрель 6, 2023

As an interdisciplinary field, drug delivery relies on the developments of modern science and technology. Correspondingly, how to upgrade traditional dosage forms for a more efficacious, safer, convenient poses continuous challenge researchers.

Язык: Английский

---