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1Large-scale blow spinning of heat-resistant nanofibrous air filters显示文摘Particulate matter(PM)pollution has become a serious problem worldwide and various kinds of nanofibrous filters aiming to solve the problem have been developed.It is urgent to remove PM from high-temperature pollution sources,such as industrial emissions,coal furnaces,and automobile exhaust gases.However,filtration at pollution sources remains challenging because most existing air filters are not resistant to high temperature.Herein,heat-resistant polyimide(PI)nanofibrous air filters are fabricated via a simple and scalable solution blow-spinning method.These air filters show excellent thermal stability at high temperature up to 420℃.They exhibit a filtration efficiency as high as 99.73%at ambient temperature and over 97%at 300℃.In addition,a field test shows that the filters remove>97%of PM from the car exhaust fumes.Hence,the blow-spun PI nanofibrous membranes combined with the facile preparation strategy have great potential in high temperature air filtration fields and other similar applications such as water purification and protein separation.Ziwei Li Jianan Song Yuanzheng Long Chao Jia Zhenglian Liu Lei Li Cheng Yang Junchen Liu Sen Lin Haiyang Wang Yibo Liu Minghao Fang Hui Wu 2020Nano Research2020,13,3:6
2摩擦纳米发电技术研究进展及其潜在应用显示文摘摩擦纳米发电(triboelectric nanogenerator,TENG)是一种利用摩擦起电现象实现机械能向电能转化的技术.相比于传统的电磁感应发电技术,TENG具有发电电压高、质量轻、体积小、具有柔性及其形状灵活多变且兼容性高等优点.结合本课题组多年来在TENG方面的研究工作,介绍了TENG的4种模式和基本工作原理,并针对其作为功率源、电压源、信号源、控制源等4个方面的研究进展作全面论述,最后对TENG产业化应用前景进行展望.韩昌报 王嫚琪 黄建华 郑嘉煜 赵文康 张浩 张永哲 2020北京工业大学学报2020,46,10:6
3摩擦纳米发电机在自驱动智能交通系统的应用研究进展显示文摘摩擦纳米发电机具有供电和高灵敏度传感的双重功能,能够在自驱动智能交通系统中发挥重要作用。综述了近年来摩擦纳米发电机在公路及铁路智能交通系统中的应用,包括车辆检测、尾气处理、振动能收集、风能收集等,分析了摩擦纳米发电机在智能交通系统应用过程中存在的挑战,展望了摩擦纳米发电机在材料、信息、电子、机械、交通等多学科交叉的发展趋势。靳龙 张磊 张彬彬 杨维清 2022科技导报2022,40,17:1
4Applications of nanomaterials in COVID-19 pandemic显示文摘The novel coronavirus 2019(COVID-19)pandemic represents one of the biggest global health threats in the last two decades,so researchers around the world are searching for solutions and treatments for COVID-19.At the time of writing,there are no specific drugs that have demonstrated suitable effectiveness in treating COVID-19.The current challenge involves designing tools for the prevention,rapid and accurate diagnosis,drug delivery,and effective treatment of this novel coronavirus.In this short review,we discuss how nanotechnology offers new ways to combat COVID-19,and how nanomaterials can be applied to control the COVID-19 outbreak.We also summarize relevant studies regarding the use of nanomaterials for preventing viral spread,preparing vaccines,and diagnosing coronavirus,as well as studies that show how nanoparticles can be used as drug delivery systems for the treatment of viral infections.Research on nanotechnology-based diagnosis,drug delivery,and antiviral therapy is currently in the early stages.However,the unique chemical properties of some nanomaterials highlight the broad prospect of nanomaterials in the future,and we propose that they will play an important role in the fight against COVID-19.Mei-Fang Xiao Chang Zeng Shao-Hui Li Fu-Lai Yuan 2022Rare Metals2022,41,1:1
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