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静电纺纳米纤维的研究及应用进展 总被引:2,自引:1,他引:2
简述了静电纺丝基本原理及纺丝过程中射流存在的几种不稳定性形式;探讨了静电纺丝制备纳米纤维的主要影响因素。回顾了静电纺丝的发展历程,介绍了纳米纤维在电子器件、生物医学领域、滤材、防护服用材料纤维增强复合材料及传感器感知膜等方面的应用。指出静电纺纳米纤维性能优异、应用广泛,应用于生物医学领域是研发热点,必将进一步产业化。 相似文献
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静电纺纳米纤维的应用 总被引:1,自引:0,他引:1
综述了静电纺纳米纤维在保护性服用材料、传感器、过滤防护材料、高分子纳米模板、纳米复合改性材料、航空航天等方面的应用;详述了在生物医用材料方面的应用;展望了静电纺丝纳米纤维的发展前景;指出应继续研发具有特殊性能的静电纺纳米纤维新产品,扩大其应用领域,最终实现成果产业化。 相似文献
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静电纺丝纳米纤维较传统纳米材料有许多独特的性能,静电纺丝纳米纤维修饰电极的研究是其新热点;按修饰方法的不同,静电纺丝纳米纤维修饰电极分为直接修饰和非直接修饰电极两大类。综合近年来国内外的静电纺丝纳米纤维修饰电极相关研究,阐述了静电纺丝技术直接修饰电极、静电纺丝技术非直接修饰电极的相关纳米纤维材料的制备、特性及应用;指出由于静电纺丝纳米材料的多样化与优异性,静电纺丝纳米纤维修饰电极具有灵活性与灵敏性,其在生物传感器、生物芯片、染料电池等方面的应用极具开发潜力,在未来多个领域和研究中发挥重要作用。 相似文献
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Six solvents [acetic acid, acetonitrile, m‐cresol, toluene, tetrahydrofuran (THF) and dimethylformamide (DMF)] with different properties (eg density, boiling point, solubility parameter, dipole moment and dielectric constant) were used to prepare electrospun polystyrene (PS) fibers. Fiber diameters were found to decrease with increasing density and boiling point of the solvents. A large difference between the solubility parameters of PS and the solvent was responsible for the bead‐on‐string morphology observed. Productivity of the fibers (the numbers of fiber webs per unit area per unit time) increased with increasing dielectric constant and dipole moment of the solvents. Among the solvents studied, DMF was the best solvent that provided PS fibers with highest productivity and optimal morphological characteristics. The beadless, well‐aligned PS fibers with a diameter of ca 0.7 µm were produced from the solution of 10 % (w/v) of PS in DMF at an applied electrostatic field of 15 kV/10 cm, a nitrogen flow rate of 101 ml min?1 and a rotational speed of the collector of 1500 rev min?1. Copyright © 2004 Society of Chemical Industry 相似文献
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BACKGROUND: Electrospinning is known as a novel fabrication method to form nanofibrous scaffolds for tissue‐engineering application. Previously, many natural biopolymers of protein have been electrospun. However, keratin has not attracted enough attention. In this study, keratin and gelatin were co‐electrospun with polylactide (PLA), respectively. RESULTS: The resulting nanofibers were characterized by a field emission scanning electron microscope (FE‐SEM), an attenuated total reflection‐Fourier transform infrared spectroscopy (ATR‐FTIR), and an electron spectroscopy for chemical analysis (ESCA). The biodegradation of mats in the presence of trypsin solution was studied. Cell attachment experiments showed that NIH 3T3 cells adhered more and spread better onto the PLA/keratin and PLA/gelatin nanofibrous mats than that onto the blank PLA mats. MTT and BrdU assay showed that PLA/keratin and PLA/gelatin nanofibrous mats could both accelerate the viability and proliferation of fibroblast cells as compared to PLA nanofibrous mats. CONCLUSION: The present study suggests that the introduction of gelatin and keratin can both improve cell‐material interaction, especially, the former is more effective. Copyright © 2008 Society of Chemical Industry 相似文献
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通过紫外引发多巴胺氧化自聚生成聚多巴胺,对角蛋白/聚乳酸纳米纤维膜进行表面修饰,以改善其薄膜亲水性差、力学性能不足和细胞活性较低等问题。通过扫描电子显微镜、傅里叶变换红外光谱、热重分析、接触角实验、电子万能试验机、细胞活性毒性实验和细胞黏附性实验对表面修饰前后纳米纤维膜的形貌、结构、热稳定性和热降解率、亲水性、力学性能、细胞活性毒性和黏附性进行测试和表征。结果表明,聚多巴胺成功地黏附在纤维的表面,表面修饰后的纤维平均直径增大,由(356±78)nm增大至(507±98)nm,接触角由103.34?降至82.46?,弹性模量与断裂伸长率分别增大了2.75~5.33MPa和31.75%~51.50%,接种24h后细胞活性由72%增大至221%,增大了149%。 相似文献
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Özge Erdemli;Bengi Yilmaz;İrem Göksu Saran;Erdal Serin; 《Polymer International》2024,73(10):833-843
This study focuses on developing a sustainable and biocompatible polycaprolactone (PCL)-based scaffold for bone tissue engineering through electrospinning, utilizing calcium carbonate (CaCO3) from Pomacea canaliculata shells and keratin from human hair, known for stimulating bone regeneration. The isolated CaCO3 has been identified to demonstrate two polymorphs, vaterite and calcite, as determined by X-ray diffraction. The isolation of keratin from human hair was confirmed through sodium dodecyl sulfate polyacrylamide gel electrophoresis and Fourier transform infrared spectroscopy analysis, revealing the presence of α-keratin structures around 45–50 kDa and β-keratin structures around 55–60 kDa. According to scanning electron microscope observations, the addition of keratin to PCL fibers reduced their diameter from 457 ± 345 to 371 ± 103 nm. Further addition of calcium carbonate led to a mean diameter of 258 ± 76 nm. The melting temperature of PCL fibers containing keratin and CaCO3 was determined to be 76.17 °C via differential scanning calorimetry, while thermogravimetric analysis, conducted at temperatures up to 600 °C, revealed a remaining ash content of 9.59%. Calcium phosphate accumulation was observed to initiate on PCL fibers containing keratin and CaCO3 following a 7-day exposure to simulated body fluid. The fibers exhibit cytocompatibility, showing no toxicity while supporting the growth and proliferation of Saos-2 osteosarcoma cells. The results suggest that the innovative incorporation of keratin and CaCO3 into PCL nanofibers could serve as a bioactive matrix compared to pure PCL matrices, thereby offering enhanced potential for bone tissue engineering applications. © 2024 The Author(s). Polymer International published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. 相似文献
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概述了静电纺丝技术的原理及其在生物性纳米复合材料制备过程中的作用.该技术可将多种材料以不同的方式复合到同一根纤维中,使得纤维又增添了多种新的功能,因此其在多功能复合材料制备方面的应用广受关注.同时由于海藻酸钠纳米材料具有良好的理化性质、功能特性、生物相容性及特殊的纳米效应,利用静电纺丝技术将高效抗菌剂均匀分布到海藻酸钠材料中制备成抗菌复合薄膜,使其在食品包装、创伤敷料、药物载体及组织工程支架等方面体现出了重要的应用价值.此外,本文还在该技术的基础上,提出了关于静电纺丝制备海藻酸钠抗菌复合薄膜过程中改性剂的优化、抗菌剂的选择等方面的问题,并展望了基于静电纺丝技术的海藻酸钠抗菌复合薄膜的应用前景. 相似文献
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Polymeric nanofiber webs have attained much attention because they can provide high surface area with various functional groups. To obtain the polymeric nanofiber webs, electrospinning is the most attractive method because this can provide the versatility of material selection. However, it is relatively difficult to obtain the nanofiber webs, which have highly reactive functional groups and high mechanical strength with high production rate. Here, the helically probed rotating cylinder (HPRC) system based on syringeless electrospinning and chemical vapor deposition (CVD) is introduced to prepare the polyacrylonitrile (PAN) nanofiber webs, having high functional groups and high mechanical strength in fast production rate. The HPRC system can provide the PAN nanofiber webs in high production rate, and the CVD process can provide high reactive functional groups on the PAN nanofiber. In addition, the nanofiber webs can be applied to diverse potential application fields, which require a high number of functional moieties. 相似文献
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Elena Pulidori Simone Micalizzi Emilia Bramanti Luca Bernazzani Celia Duce Carmelo De Maria Francesca Montemurro Chiara Pelosi Aurora De Acutis Giovanni Vozzi Maria Rosaria Tin 《International journal of molecular sciences》2021,22(17)
Poultry feathers are among the most abundant and polluting keratin-rich waste biomasses. In this work, we developed a one-pot microwave-assisted process for eco-friendly keratin extraction from poultry feathers followed by a direct electrospinning (ES) of the raw extract, without further purification, to obtain keratin-based bioplastics. This microwave-assisted keratin extraction (MAE) was conducted in acetic acid 70% v/v. The effects of extraction time, solvent/feathers ratio, and heating mode (MAE vs. conventional heating) on the extraction yield were investigated. The highest keratin yield (26 ± 1% w/w with respect to initial feathers) was obtained after 5 h of MAE. Waste-derived keratin were blended with gelatin to fabricate keratin-based biodegradable and biocompatible bioplastics via ES, using 3-(Glycidyloxypropyl)trimethoxysilane (GPTMS) as a cross-linking agent. A full characterization of their thermal, mechanical, and barrier properties was performed by differential scanning calorimetry, thermogravimetric analysis, uniaxial tensile tests, and water permeability measurements. Their morphology and protein structure were investigated using scanning electron microscopy and attenuated total reflection-infrared spectroscopy. All these characterizations highlighted that the properties of the keratin-based bioplastics can be modulated by changing keratin and GPTMS concentrations. These bioplastics could be applied in areas such as bio-packaging and filtration/purification membranes. 相似文献
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Yuting Wang Hui Wu Dandan Lin Rui Zhang Heping Li Wei Zhang Wei Liu Siya Huang Lei Yao Jing Cheng Muhammad Shahid Mengfei Zhang Takahiro Suzuki Wei Pan 《Journal of the American Ceramic Society》2022,105(2):765-785
One-dimensional sensing materials that are prepared via electrospinning and controlled annealing exhibit intrinsic properties, such as electron transmissivity, magnetic susceptibility, specific heat capacity, as well as optical and mechanical characteristics. Particularly, the electronic transmission characteristics of the ceramic fiber materials, such as the electrical conductivity, photocurrent, magnetoresistance, nanocontact resistance, and dielectric properties, exhibited great potential for applications in the next generation of electronic sensing devices. First, electrospun ceramic materials with different structural and functional characteristics were reviewed here, after which the strategies for improving their properties, as well as the method for assembling the flexible devices, are summarized. Moreover, the electrospun ceramic nanofibers were detailedly discussed regarding applications in device construction and wearable electronics, such as photosensors, gas sensors, mechanical sensors, and other energy storage devices. Finally, the future development direction of the electrospinning technology for multifunctional and wearable electronics skin was proposed. 相似文献
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静电纺丝制备的纳米纤维孔隙率高、吸附能力强,可用于高效地处理化工行业油污染问题。聚乳酸(PLA)作为生物可降解材料,来源广泛且不会造成二次污染,具有广阔的应用前景。本文利用自制的熔体微分电纺装置,制备了PLA/乙酰基柠檬酸三丁酯(ATBC)纤维膜,探究了物料性质和增塑剂ATBC含量对PLA纤维形貌及吸油性能的影响,并获得了最佳的纺丝温度和ATBC含量。研究表明,在纺丝温度为240℃、ATBC质量分数为10%时制备的纤维直径为320nm。该纤维膜水接触角为145°,表现出良好的疏水性能,吸油倍率为138.4g/g,是市售PP无纺布吸油性能的4~5倍,保油倍率为85.8g/g。重复吸/放油5次循环后,纤维膜仍具有良好的强度而未发生断裂且可继续进行吸油,重复使用性能较好,可被应用于化工行业油污染处理。 相似文献