共查询到20条相似文献,搜索用时 140 毫秒
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文章综述了水溶性杯芳烃的应用研究进展,详细介绍了其在生命科学、模拟酶、分子离子识别及相转移催化方面的应用,并对其应用前景进行了展望。 相似文献
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分析了纯碱刮板传动输送装置存在的问题,并应用空气射流输送泵对其进行改造,介绍了空气射流输送泵的应用原理、特点,总结了其应用效果及注意事项。 相似文献
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目前在建筑结构中,混凝土建筑结构的应用日益广泛,在建筑施工中模板施工技术作为一种重要的应用技术促进了其快速发展。采用的模板一般都是根据混凝土构件设计与工艺要求,保证其设计感及质量。所以深入研究模板施工技术在混凝土建筑结构中的应用,以及扩大其在混凝土建筑中的应用范围具有重要作用。本文基于混凝土建筑结构模板施工技术的应用现状对其应用进行了较深入地分析。 相似文献
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《化学推进剂与高分子材料》2016,(6):45-50
简述了金属有机框架材料最新研究进展,综述了其特点、合成方法及应用,重点介绍了其在生物领域的应用。同时又阐述了常与金属有机框架交联制备新型复合材料的功能核酸的基本情况、筛选技术,详细介绍了几种功能核酸生物分析方法及其在各个领域的应用。综述了DNA(脱氧核糖核酸)功能化材料的研究进展,并分析了其应用前景。 相似文献
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用于汽车尾气处理的纳米催化技术 总被引:1,自引:0,他引:1
纳米催化剂具有很高的催化活性,在汽车尾气净化处理中有很好的应用前景。综述了近年来纳米级的汽车尾气净化催化材料的研究状况,侧重分析尾气催化剂中的几种组分制成纳米级后其结构和性能的变化,并对其存在的问题和应用趋势进行了探讨。 相似文献
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纳米粒子在润滑油中的分散稳定性研究 总被引:1,自引:0,他引:1
纳米粒子作为润滑油添加剂,具有非常好的抗磨减摩效果.纳米粒子团聚与分散机制比较复杂,形式多样.使用静电抗团聚理论分析纳米粒子在液体介质油中的分散稳定性,找出解决纳米粒子的分散问题,必须要求有足够高的能量以防止粒子间相互膨胀接触而重新团聚.最后用胶体的稳定性理论,即双电层排斥理论探讨纳米粒子在液体介质中的分散性问题,需要利用表面活性剂对其进行表面改性,使其处于良好、充分的分散状态. 相似文献
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L. S. Gal’braikh T. V. Druzhinina G. A. Vikhoreva N. S. Zubkova T. N. Yudanova L. S. Sletkina L. V. Redina 《Fibre Chemistry》2011,43(3):208-216
Results of theoretical and applied studies on the modification of fibrous and film materials that were performed in the Department
of Chemical Fiber and Nanomaterial Technology during recent years were presented. 相似文献
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Nanotechnology has arisen as a key player in the field of nanomedicine. Although the use of engineered nanoparticles is rapidly increasing, safety assessment is also important for the beneficial use of new nanomaterials. Considering that the experimental assessment of new nanomaterials is costly and laborious, in silico approaches hold promise. Several major challenges in nanotechnology indicate a need for nanoinformatics. New database initiatives such as ISA-TAB-Nano, caNanoLab, and Nanomaterial Registry will help in data sharing and developing data standards, and, as the amount of nanomaterials data grows, will provide a way to develop methods and tools specific to the nanolevel. In this review, we describe emerging databases and tools that should aid in the progress of nanotechnology research. 相似文献
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Alexandra Kroll Christian Dierker Christina Rommel Daniela Hahn Wendel Wohlleben Christian Schulze-Isfort Christian G?bbert Matthias Voetz Ferdinand Hardinghaus Jürgen Schnekenburger 《Particle and fibre toxicology》2011,8(1):9
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Engineered nanomaterials display unique properties that may have impact on human health, and thus require a reliable evaluation of their potential toxicity. Here, we performed a standardized in vitro screening of 23 engineered nanomaterials. We thoroughly characterized the physicochemical properties of the nanomaterials and adapted three classical in vitro toxicity assays to eliminate nanomaterial interference. Nanomaterial toxicity was assessed in ten representative cell lines. 相似文献17.
Ela Eroglu Colin L Raston 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2017,92(8):i-i
The cover image, by Ela Eroglu and Colin L Raston, is based on the Mini‐review Nanomaterial processing strategies in functional hybrid materials for wastewater treatment using algal biomass, DOI: 10.1002/jctb.5188 .
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纳米材料修饰阳极可显著提高微生物燃料电池(MFC)性能,本研究主要探索了石墨烯、聚苯胺和石墨烯/聚苯胺复合修饰电极对MFC产电性能的影响。使用电化学方法电镀石墨烯于碳布表面,进一步通过原位聚合法制备聚苯胺来修饰碳布电极。将修饰电极装载入双室型MFC中,测量其产电性能,并对电极进行表征,测量电化学性能。通过扫描电镜观察到, 碳布能够被修饰上石墨烯和聚苯胺,并且聚苯胺附着于碳纤维或石墨烯薄层表面,形成棒状的纳米结构。产电性能方面,装载石墨烯/聚苯胺修饰电极的MFC最大输出电压最高,达到了(291±22)mV,比装载空白碳布电极的对照组MFC提高了175%以上。石墨烯/聚苯胺电极组MFC的最大输出功率密度同样最高,达到了(653 ± 25)mW·m-2,为空白碳布对照组的10.5倍。实验结果表明:石墨烯/聚苯胺复合修饰电极可有效利用石墨烯导电性好和聚苯胺生物相容性高的优点,显著提高MFC的产电性能。 相似文献
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Manoranjan Sahu Komkrit Suttiponparnit Sirikalaya Suvachittanont Tawatchai Charinpanitkul Pratim Biswas 《Chemical engineering science》2011,(15):3482
Nanomaterial suspensions with different dopant types and compositions were investigated to examine their effects on agglomeration through the measurement of hydrodynamic diameter (HD), surface charge, and isoelectric point (IEP). Four different types of nanoparticles, all synthesized by a flame aerosol reactor, were considered for the analysis. The nanoparticles considered were pristine TiO2, Cu–TiO2, V–TiO2, and Pt–TiO2 with dopant concentrations ranging from 1 to 6 wt%. Measurements were conducted over a broad range of pH (3–11) and ionic strengths (0.001–0.1 M) to understand the roles of pH and ionic strength (IS) on dispersion characteristics. Calculations were made using the classical DLVO theory to explain the agglomeration behavior. The results indicate that dopant addition can change surface charge, hydrodynamic diameter, and shift the IEP to higher or lower pH than pristine TiO2, depending on the type of dopant and composition. Vanadium and platinum doping shifted the IEP to lower pH values, whereas copper doping shifted it to higher pH values. For each of the nanoparticles considered, pH and IS were found to have significant effects on the surface charge and HD, which were also verified by calculation from DLVO theory. 相似文献