ResearchGate |
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ZnO Nanofiber Derived from Zinc Loaded Chitosan Nanofiber as an Efficient Adsorbent for Congo Red from Aqueous Solution |
In this study, uniform Zn²⁺ incorporated chitosan nanofibers were first prepared by electrospinning with PEO as the cospinning agent and ZnO as the Zn²⁺ source. Then, these composite nanofibers were carbonized at 600 oC under argon atmosphere to achieve ZnO embedded carbon (Zn@C) nanofibers. Afterward, these ZnO@C nanofibers were annealed at 400 oC under air atmosphere to prepare ZnO nanofibers. SEM, XPS and TEM results confirmed the successful preparation of ZnO nanofibers. The BET analysis shows that the surface area of ZnO nanofibers was up to 154.5 m²/g. These ZnO nanofibers exhibited excellent adsorption performance for Congo red with adsorption capacity of up to 224.2 mg/g. |
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2024-08-01 Read more about this article in source |
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To study the effect of electrospinning nanofiber mats synthesized using hydroxypropyl chitosan in conjugation with poly (vinyl alcohol) on the osteogenesis in MC3T3 cell, we fabricated different ratios of hydroxypropyl chitosan (HPCH) and poly (vinyl alcohol) to electrospin the nanofiber mats, the mechanical and physical properties of nanofiber mats were tested by using SEM, FT-IR and conventional methods. Then the effect of the electrospinning mats on osteogenesis in MC3T3 cell were evaluated by Alizarin Red stain, ALP stain and expression of relevant genes. We found that the nanofiber mats fabricated by hydroxypropyl chitosan (50%) and poly (vinyl alcohol)(50%) can induce osteoblast 01/01/2025 -
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ResearchGate more ...
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Nanofibers are gaining significant attention for their adaptability in biomedical fields, including tissue engineering, drug delivery systems, and wound healing, due to their large surface area, nanoscale porosity, and remarkable ability to load and deliver drugs effectively. Electrospinning, a cost-effective and scalable technique, enables precise control over nanofiber morphology while allowing the incorporation of bioactive molecules. Choosing the right polymers is essential to optimize mechanical, biocompatible, and biodegradable properties of electrospun scaffolds to suit various biomedical applications. As a surface modification technique, plasma treatment has shown significant 12/01/2024 -
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Antibacterial materials are increasingly significant, particularly for biomaterials and food packaging applications. Materials with good elasticity and antibacterial properties are crucial in this line of work. This study focused on the investigation of nanofiber properties in elasticity and antibacterial by combining Moringa oleifera (MO) zinc oxide nanoparticles (ZnO NPs) with polyvinyl alcohol (PVA) nanofiber. The PVA/MO/ZnO nanofiber is fabricated using the electrospinning method. The morphology of PVA/MO/ZnO nanofiber shows smooth and uniform fibers with 292 nm in diameter size. The EDX mapping also demonstrates the successful loading of ZnO NPs into fibers, 12/01/2024 -
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As noise pollution becomes an increasingly important environmental issue, the development of advanced materials for noise reduction has attracted widespread attention. Nanofiber membranes, due to their high specific surface area, low density, and unique porous structure, exhibit excellent sound absorption performance, especially in the mid-to-low frequency range. In this study, polyacrylonitrile (PAN) nanofiber membranes with different mass fractions were fabricated using the electrospinning technique to investigate their sound absorption properties. The acoustic characteristics of the nanofiber membranes were analyzed through experiments and COMSOL simulation. 12/01/2024 -
Due to the direct long-term contact with living tissue, the biocompatibility of implants is particularly demanding. In this context, biointegration of implants highly depends on cell colonialization on the surface or in the gap between implant and tissue, as well as cell ingrowth in porous implant structures. Fibrous material is predestined based on two variable parameters, fiber thickness and pore size. Various applications in implant coating, stenting, wound treatment, bone surgery, or cardiovascular field are possible. Coating with cell-friendly material can significantly improve the biocompatibility of the underlying material. In this study, the biocompatibility of medical device 12/01/2024
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Purpose As a result of referee evaluation, the subject scope of the article has been expanded. Previously, only polycaprolactone (PCL) loaded with peppermint extract had been studied. As a result of peer review, nanostructure production was made with peppermint-loaded polylactic acid (PLA). Literature information about PLA polymer has been added to the Introduction section. Additionally, to analyze the presence of peppermint extract in Fourier transform infrared (FTIR) measurements, a comparison was made with 100% PCL, 100% PLA and 100% peppermint extract. In order to observe the effect of polymer type, evaluations were made between the produced peppermint-loaded nanostructures containing 12/01/2024
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ResearchGate more ...
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ResearchGate more ...
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Injury caused by excess reactive oxygen species (ROS) may lead to susceptibility to bacterial infection and sustained inflammatory response, which are the major factors impeding diabetic wound healing. By utilizing optimal anti-inflammatory, antioxidant, and antibacterial biomaterials for multifunctional wound dressings is critical in clinical applications. In this study, a novel electrospun PLGA/MoS2@Pd nanofiber membrane was synthesized by encapsulating antioxidant and near-infrared (NIR) responsive MOS2@Pd nanozymes in PLGA nanofibers to form a multifunctional dressing for diabetic wound repair. With excellent biocompatibility and hemostatic ability, this novel PLGA/MoS2@Pd nanofiber 12/01/2024 -
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Wound management is a complex clinical challenge that needs advanced materials and techniques for satisfactory results. Electrospun nanofiber mats have emerged as an innovative alternative for wound healing purposes due to their porous architecture, greater surface area, ease of water absorption, mimicry of the extracellular matrix of natural tissues and tunable mechanical properties. This paper sheds light on recent advances in the fabrication techniques, properties, structural features and application of electrospun polymeric nanofiber mats for wound healing purposes emphasizing the importance of polymer selection and processing parameters in tailoring their physicochemical properties. 12/01/2024 -
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Due to changing lifestyles, millions of people worldwide experience dry eye disease (DED). The treatment for DED primarily involves the topical use of artificial tears and anti-inflammatory eye drops. Frequent administration of conventional eye drops leads to reduced patient adherence. This study aims to improve the convenience and reduce the dosing frequency, by designing dexamethasone sodium phosphate (DSP)-loaded multilayer nanofiber inserts (MLNI) for managing DED. The drug-loaded electrospun nanofibers were sandwiched between two blank nanofiber scaffolds. The outer nanofiber scaffolds will aid mucoadhesion and lubricate the cornea to reduce the dryness. 12/01/2024 -
ResearchGate more ...
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