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我国无机纳米复合材料制备进展 总被引:4,自引:0,他引:4
综述了近几年来国内在纳米复合陶瓷、金属基纳米复合材料、纳米复合镀层、介孔纳米复合材料、无机纳米复合膜、纳米多层复合材料及纳米碳管复合材料的研究进展,并指出了当前研究中存在的问题和解决方法。 相似文献
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微纳米艺术是这几年才新兴的一个非主流纳米学科分支。文章结合微纳米艺术的发展现状,阐述了微纳米艺术的内涵和分类,全面介绍了可用于发展微纳米艺术的主要纳米创作技术与方法。最后,围绕微纳米艺术发展的新动态,分析了若干微纳米艺术发展的新特征。 相似文献
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到目前为止,大多数静电纺纳米纤维是以无纺布的形式收集到的,由于其杂乱无章的结构以及较低的力学性能严重束缚了纳米纤维的应用。为了拓展纳米纤维的应用领域,很多学者开始研究取向纳米纤维束以及纳米纤维纱线的制备方法。本文介绍了取向纳米纤维束以及纳米纤维纱线的研究进展,特别阐述了各种加工方法的优缺点,并且对纳米纤维纱线的发展前景进行了展望。 相似文献
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聚合物/碳纳米管复合材料研究进展 总被引:10,自引:0,他引:10
聚合物/碳纳米管复合材料近年来引起人们广泛的关注。本文综述了聚合物/碳纳米管复合材料的研究进展,重点介绍了聚合物/碳纳米管复合材料的类型、制备方法及力学、电学和光学性能等。 相似文献
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The development of single-walled carbon nanotubes for various biomedical applications is an area of great promise. However, the contradictory data on the toxic effects of single-walled carbon nanotubes highlight the need for alternative ways to study their uptake and cytotoxic effects in cells. Single-walled carbon nanotubes have been shown to be acutely toxic in a number of types of cells, but the direct observation of cellular uptake of single-walled carbon nanotubes has not been demonstrated previously due to difficulties in discriminating carbon-based nanotubes from carbon-rich cell structures. Here we use transmission electron microscopy and confocal microscopy to image the translocation of single-walled carbon nanotubes into cells in both stained and unstained human cells. The nanotubes were seen to enter the cytoplasm and localize within the cell nucleus, causing cell mortality in a dose-dependent manner. 相似文献
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Carbon nanotubes are generally insoluble in any solvents, resulting in their poor processability for many proposed potential applications. Several strategies have been developed to introduce carbon nanotubes into solvent systems, including dispersion and suspension under special experimental conditions and the chemical modification and functionalization. The well-dispersed and solubilized carbon nanotubes make it possible to characterize and study the carbon nanotubes by using solution-based techniques, to realize some of the unique properties of the nanotubes, and to carry out further chemical transformations. In this review, recent development in the experimental methods for the dispersion and solubilization of carbon nanotubes will be summarized and discussed. 相似文献
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Advances in Bioapplications of Carbon Nanotubes 总被引:1,自引:0,他引:1
Fushen Lu Lingrong Gu Mohammed J. Meziani Xin Wang Pengju G. Luo Lucia Monica Veca Li Cao Ya‐Ping Sun 《Advanced materials (Deerfield Beach, Fla.)》2009,21(2):139-152
This progress report provides an overview on recent advances in bioapplications of carbon nanotubes including the chemical modification of carbon nanotubes, targeting specifically their covalent and noncovalent conjugations with a variety of biological and bioactive species (proteins and peptides, DNAs/RNAs, and carbohydrates). Furthermore, the significant recent development and progress in the use of carbon nanotubes for biosensors, drug and other delivery systems, bioimaging, etc. and in the understanding of in vivo biodistribution and toxicity of carbon nanotubes are reported. 相似文献
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碳纳米管是近年来国内外广泛关注的一类纳米材料,具有一维特征孔道结构,能够有效促进液体分子的传输速率,是理想的海水淡化膜分离材料。通过将其引入到常用的海水淡化膜基质中,借以提高膜的分离性能,逐渐成为膜分离领域的一个研究热点。综述了碳纳米管在海水淡化膜分离材料中的应用与研究进展,介绍了碳纳米管的结构并阐述了其应用于海水淡化膜分离的优异性能,总结了碳纳米管在反渗透、正渗透、膜蒸馏中的应用研究现状并分析了碳纳米管在反渗透、正渗透、膜蒸馏应用中的挑战,探讨了碳纳米管在海水淡化膜分离材料中的应用潜力。 相似文献
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作为重要的纳米功能纤维,碳纳米管有着令人振奋的广阔的应用前景,引起了世界范围内研究人员的广泛关注.综述了国内外碳纳米管技术的最新研究进展,比较了电弧放电、激光烧蚀以及化学气相沉积等3种主要的碳纳米管合成技术,并着重讨论了当前流行的化学气相沉积法,探讨了拉曼散射、激光诱导荧光、瑞利散射等分子光谱技术在碳纳米管表征中的应用,介绍了碳纳米管出色的力学、机电、场发射、电化学等特性以及基于碳纳米管的电子器件如场效应管、单电子管等. 相似文献