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作为非病毒基因载体的环糊精及其衍生物

中国生物工程杂志 2008年第10期28卷 113-117页

作者：张晓郭执章黄岚李建树四川大学高分子科学与工程学院医用高分子材料及人工器官系成都610065

环糊精由于自身的生物相容性和结构易裁剪性,通过结构修饰、聚合或超分子组合等设计被逐渐应用于非病毒基因载体系统。分别从环糊精、其小分子衍生物、含环糊精聚合物以及超分子结构综述国内外近几年的设计思路和研究进展,并探讨含环糊... 详细信息

环糊精由于自身的生物相容性和结构易裁剪性,通过结构修饰、聚合或超分子组合等设计被逐渐应用于非病毒基因载体系统。分别从环糊精、其小分子衍生物、含环糊精聚合物以及超分子结构综述国内外近几年的设计思路和研究进展,并探讨含环糊精及其衍生物的非病毒基因载体的"结构—安全性—基因转染效率"关系。

关键词：环糊精环糊精衍生物聚合物非病毒基因载体转染效率

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平行轨道加速器等离子体动力学特性研究

物理学报 2018年第6期67卷 161-169页

作者：刘帅黄易之郭海山张永鹏杨兰均西安交通大学电力设备电气绝缘国家重点实验室西安710049

等离子体电磁加速器可产生高速度、高密度等离子体射流而广泛应用于核物理、天体物理等领域.本文通过光电二极管、磁探头研究了不同放电电流和初始气压条件下等离子体在平行轨道加速器内的轴向运动特性.通过电流截断的方法,采用冲击摆... 详细信息

等离子体电磁加速器可产生高速度、高密度等离子体射流而广泛应用于核物理、天体物理等领域.本文通过光电二极管、磁探头研究了不同放电电流和初始气压条件下等离子体在平行轨道加速器内的轴向运动特性.通过电流截断的方法,采用冲击摆测量了首次等离子体射流的动量.平行轨道加速器驱动电源由14级脉冲形成网络组成,每级电容为1.5μF,每级电感约为300 nH,得到振荡衰减型方波的电流波形.实验发现,电流过零时,轨道起始处一般会发生二次击穿,并形成二次轴向运动的等离子体.放电电流为10—55 kA、初始气压为200—1000 Pa时,等离子体的轴向速度为8—25 km/s.实验获得的等离子体的运动速度为雪犁模型理论结果的60%—80%,这主要是理论模型忽略了电极表面对电弧的黏滞阻力以及电极烧蚀引起的质量增加.等离子体动量与电流的平方随时间的积分成正比.放电电流为21-51.6 kA时,首次等离子体射流的动量为1.49—9.88 g·m/s.等离子体运动过程中除了受到洛伦兹力外,还会受到电极表面的黏滞阻力,造成等离子体动量约为理论结果的75%.

关键词：平行轨道等离子体速度动量

Nanograting‑Based Dynamic Structural Colors Using Heterogeneous Materials

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Nano-Micro Letters 2025年第3期17卷 138-151页

作者： Jingang Wang Haibo Yu Jianchen Zheng Yuzhao zhang Hongji guo Ye Qiu Xiaoduo Wang Yongliang Yang Lianqing Liu State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China

Dynamic structuralcolors can change in response todifferent environmental *** ability remains effectiveeven when the size of the speciesresponsible for the structural coloris reduced to a few micrometers,providing a promising sensingmechanism for solving microenvironmentalsensing problems inmicro-robotics and ***, the lack of dynamicstructural colors that can encoderapidly, easily integrate, and accuratelyreflect changes in physical quantities hinders their use in microscale sensing applications. Herein, we present a 2.5-dimensionaldynamic structural color based on nanogratings of heterogeneous materials, which were obtained by interweaving a pH-responsive hydrogelwith an IP-L photoresist. Transverse gratings printed with pH-responsive hydrogels elongated the period of longitudinal grating in the swollenstate, resulting in pH-tuned structural colors at a 45° incidence. Moreover, the patterned encoding and array printing of dynamic structuralcolors were achieved using grayscale stripe images to accurately encode the periods and heights of the nanogrid structures. Overall, dynamicstructural color networks exhibit promising potential for applications in information encryption and in situ sensing for microfluidic chips.

关键词： Dynamic structural colors Four-dimensional printing pH-responsive Nanogrid Heterogeneous materials

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基于Creo钣金模块的异型纸盒设计方法

包装工程 2016年第19期37卷 22-26页

作者：李国志张晓静陕西科技大学西安710021

目的研究异型纸盒以三维造型为基础完成二维展开结构的逆向设计。方法以Creo钣金模块为主要设计工具,分析不同类型异形纸盒展成二维图形的方法及规律。结果提出了适用于不同纸盒造型的3种钣金建模方法,总结了以长方体造型为基础的异型... 详细信息

目的研究异型纸盒以三维造型为基础完成二维展开结构的逆向设计。方法以Creo钣金模块为主要设计工具,分析不同类型异形纸盒展成二维图形的方法及规律。结果提出了适用于不同纸盒造型的3种钣金建模方法,总结了以长方体造型为基础的异型纸盒钣金件展平结果。结论通过设计案例证明,利用Creo钣金工具进行异形纸盒逆向设计可以降低设计工作对设计师技能的依赖程度,并可加快新盒型的开发进程。

关键词：异形纸盒结构设计 Creo 钣金

Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui guo Yun Chen Hao zhang Jiawei Xiao Maoxiang Hou Huilong Liu Li Ma Xin Chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

Li,Na,and Cs-based metal-organic frameworks for room temperature phosphorescence applications

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Science China Chemistry 2025年

作者： Jiaqi Ma Rui Feng Yanyuan Jia Mingshi zhang Shuo guo College of Chemistry and Chemical Engineering Inner Mongolia University School of Materials Science and Engineering Smart Sensing Interdisciplinary Science Center Nankai University & TKL of Metal and Molecule Based Material Chemistry Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University Department of Chemistry and Biochemistry University of California San Diego

The conventional design of metal-organic frameworks (MOFs) with room-temperature phosphorescence (RTP) mostly relies on using heavy metals,as the heavy atom effect can effectively increase the efficiency of intersystem crossing (ISC) to get a better phosphorescence *** the first time,we reported the highly efficient RTP of a lithium-based MOF IMU-101 with a lifetime (τ) of 299 ms and a quantum yield (QY) of 4.91%.In addition,MOFs IMU-102 and IMU-103,with sodium and cesium as metal nodes,were successfully *** phosphorescence properties of this series of alkali metal MOFs were systematically studied and *** crystallography and computational calculation show that the mechanism for achieving RTP for this material lies in the ultrashort coordination bond of Li,which enables the reduction of non-radiative ***-101,as a cheap and environmentally friendly room-temperature phosphorescent material,has been further developed into composite polymer inks and bulk *** makes them promising for applications in anti-counterfeiting and information encryption.

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用于聚合物太阳能电池的芳香亚胺类阴极修饰材料及其研究进展

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中国科学：化学 2020年第8期50卷 900-915页

作者：邹博森张铭黄晏绮姚嘉白阳薛灵伟张志国北京化工大学材料科学与工程学院北京100029

聚合物太阳能电池作为一种新型太阳能电池,具有质量轻、成本低、易于大面积制备等突出优势,在学术界和工业界引起了广泛关注.近年来,聚合物太阳能电池能量转换效率提高迅速,单结器件效率值已超过17%.在器件优化中,构建高效阴极有机修饰... 详细信息

聚合物太阳能电池作为一种新型太阳能电池,具有质量轻、成本低、易于大面积制备等突出优势,在学术界和工业界引起了广泛关注.近年来,聚合物太阳能电池能量转换效率提高迅速,单结器件效率值已超过17%.在器件优化中,构建高效阴极有机修饰层成为提高光伏器件效率与稳定性的重要策略之一.芳香亚胺类阴极修饰材料因具有大共轭平面、优异的电子传输性能、丰富的化学修饰位点以及合适的能级等特点近年来备受关注.本文简单介绍了阴极修饰层材料的功能,总结和评述了苝酰亚胺和萘酰亚胺类阴极修饰材料的研究进展,最后结合实际应用的要求展望了这类材料的未来发展趋势与前景.

关键词：聚合太阳能电池阴极修饰层苝酰亚胺萘酰亚胺效率与稳定性

The potential mechanism and clinical application value of remote ischemic conditioning in stroke

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Neural Regeneration Research 2025年第6期20卷 1613-1627页

作者： Yajun Zhu Xiaoguo Li Xingwei Lei Liuyang Tang Daochen Wen Bo Zeng Xiaofeng zhang Zichao Huang Zongduo guo The First Affiliated Hospital of Chongqing Medical University ChongqingChina

Some studies have confirmed the neuroprotective effect of remote ischemic conditioning against stroke. Although numerous animal researches have shown that the neuroprotective effect of remote ischemic conditioning may be related to neuroinflammation, cellular immunity, apoptosis, and autophagy, the exact underlying molecular mechanisms are unclear. This review summarizes the current status of different types of remote ischemic conditioning methods in animal and clinical studies and analyzes their commonalities and differences in neuroprotective mechanisms and signaling pathways. Remote ischemic conditioning has emerged as a potential therapeutic approach for improving stroke-induced brain injury owing to its simplicity, non-invasiveness, safety, and patient tolerability. Different forms of remote ischemic conditioning exhibit distinct intervention patterns, timing, and application range. Mechanistically, remote ischemic conditioning can exert neuroprotective effects by activating the Notch1/phosphatidylinositol 3-kinase/Akt signaling pathway, improving cerebral perfusion, suppressing neuroinflammation, inhibiting cell apoptosis, activating autophagy, and promoting neural regeneration. While remote ischemic conditioning has shown potential in improving stroke outcomes, its full clinical translation has not yet been achieved.

关键词： Akt apoptosis autophagy cerebral perfusion cerebral vascular stenosis clinical transformation hemorrhagic stroke ischemic stroke neuroinflammation neuroprotection Notch1 PI3K remote ischemic conditioning stroke

The geochronology and geochemistry of Bingdaban ophilitic mélange in Central Tianshan,NW China

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The geochronology and geochemistry of Bingdaban ophilitic m...