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Science China Chemistry 2013年第9期56卷 1247-1252页

作者： ZHU ZhenFeng zhao XinYuan QIN Wei CHEN guangdi QIAN Jun XU ZhengPing Centre for Optical and Electromagnetic Research Zhejiang Provincial Key Laboratory for Sensing TechnologiesZhejiang University Bioelectromagnetics Laboratory School of MedicineZhejiang University Department of Chemistry The Hong Kong University of Science and Technology

2,3-Bis(4-(phenyl(4-(1,2,2-triphenylvinyl)phenyl)amino)phenyl) fumaronitrile (TPE-TPA-FN or TTF), which possesses aggregation-induced emission (AIE) characteristic, is doped in organically modified silica (ORMOSIL) nanoparticles. By increasing the weight ratio of TTF to the precursor of silica nanoparticles (the quantities of the precursors were kept the same), the fluorescence intensity of nanoparticles increased correspondingly, due to the formation of larger AIE dots in the cores of ORMOSIL nanoparticles. The fluorescent and biocompatible nanoprobes were then utilized for in vitro imaging of HeLa cells. Two-photon fluorescence microscopy clearly illustrated that the nanoparticles have the capacity of nucleus permeability, as well as cytoplasm staining towards tumor cells. Our experimental results may offer a promising method for fast and bright fluorescence imaging, as well as bio-molecule/drug delivery to cell nucleus.

关键词： TTF aggregation-induced emission organically modified silica two-photon nucleus permeability

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热灼减率分析仪校准方法研究

工业计量 2024年第2期34卷 1-3+7页

作者：陈超殷世波王理张广迪曾曌湖南省计量检测研究院

为了对热灼减率分析仪进行量值溯源，提出了一种行之有效的校准方法。校准项目包括称量示值误差和重复性、温度示值误差和炉温稳定度、热灼减率示值误差和重复性。试验验证结果表明校准方法操作性及适用性强，可以进一步推广和应用。

关键词：热灼减率分析仪校准方法示值误差重复性不确定度评定

A New Zirconocene Complex and Its Catalytic Properties for Olefin Polymerization

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Chemical Research in Chinese Universities 2000年第2期16卷 179-181页

作者： ZHANG Fan MU Ying BU Weiming zhao Ligang CHEN Congxi ZHAI Huimin YANG guangdi 吉林大学吉林长春吉林大学超分子结构与谱学开放实验室吉林长春 1 30 0 2 3

The synthesis and characterization of a new zirconocene complex, bis(1-methyl-3,4-diphenylcyclopentadienyl)zirconium dichloride (1), and its catalytic properties for ethylene and propylene polymerizations is presented. This compound is the first example of metallocene complexes with 1-alkyl-3,4-diarylcyclopentadienyl as the ligand. Ultra-high molecular weight polyethylenes with high melting transition temperatures are obtained with complex (1) at low Al/Zr molar ratios. This results are attributed to the steric hindrance of the complex. Large steric hindrance prevents the active catalyst from bimolecular deactivation and interaction with methylaluminoxane (MAO), and lower the chain termination rate.

关键词： Zirconium Metallocene Olefin polymerization Catalysis Polyethylene Polypropylene

One‑Pot Rational Deposition of Coaxial Double‑Layer MnO_(2)/Ni(OH)_(2) Nanosheets on Carbon Nanofibers for High‑Performance Supercapacitors

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Advanced Fiber Materials 2022年第5期4卷 1129-1140页

作者： guangdi Nie Zhenyuan Zhang Yingqi Liu Jian Wang Chen Fu Haiqi Yin Juan Chen Lin zhao Zhenghui Pan Industrial Research Institute of Nonwovens and Technical Textiles Collaborative Innovation Center for Eco‑Textiles of Shandong ProvinceCollege of Textiles and ClothingQingdao UniversityQingdao 266071People’s Republic of China College of Textile and Clothing Xinjiang UniversityUrumchi 830046People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Constructing“nanoglue”between inorganic electroactive species and conductive carbon scaffolds is an effective strategy to improve their compatibility and binding interaction,holding a great promise for fabricating high-performance hybrid electrodes for ***,multistep reactions are usually required to obtain these multicomponent systems,thus giving rise to the complicated and time-consuming ***,we for the first time,demonstrate a green one-pot method to anchor coaxial double-layer MnO_(2)/Ni(OH)_(2)nanosheets on electrospun carbon nanofibers(CNFs)(denoted as MNC),where the intermediate MnO_(2)layer serves as the“nanoglue”to couple the vertically aligned Ni(OH)_(2)nanosheets and conductive *** from the unique chemical composition and hierarchical architecture,the resultant electrode delivers outstanding electrochemical performance,including an excellent specific capacitance(1133.3 F g^(-1)at 1 A g^(-1))and an ultrahigh rate capability(844.4 F g^(-1)at 20 A g^(-1)).Moreover,the asymmetric supercapacitor assembled by using the MNC as positive electrode and the CNF as negative electrode can achieve an optimal energy density of 35.1 Wh kg^(-1)and a maximum power density of 8000 W kg^(-1).The one-pot strategy that stabilizes electroactive metal hydroxides on conductive carbons using a MnO_(2)“nanoglue”to design advanced hybrid electrodes is expected to be broadly applicable not only to the supercapacitor technology but also to other electrochemical applications.

关键词： “Nanoglue” One-pot method Coaxial double-layer architecture Electrospinning Supercapacitors

Toxicity assessment and long-term three-photon fluorescence imaging of bright aggregation-induced emission nanodots in zebrafish

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Nano Research 2016年第7期9卷 1921-1933页

作者： Dongyu Li Xinyuan zhao Wei Qin Hequn Zhang Yue Fei Liwei Liu Ken-Tye Yong guangdi Chen Ben Zhong Tang Jun Qian State Key Laboratory of Modern Optical Instrumentation Centre for Optical and Electromagnetic Research Zhejiang Provincial Key Laboratory for Sensing Technologies Zhejiang University Hangzhou 310058 China Bioelectromagnetics Laboratory Institute of Environmental Health Zhejiang University School of Medicine Hangzhou 310058 China Department of Chemistry The Hang Kong University of Science & Technology Clear Water Bay Kowloon Hong Kong China Changchun University of Science and Technology (CUST) Changchun 130022 China School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore

Aggregation-induced emission （AIE） luminogen displays bright fluorescence and has photobleaching resistance in its aggregation state. It is an ideal fluorescent contrast agent for bioimaging. Multiphoton microscopy is an important tool for bioimaging since it possesses the ability to penetrate deep into biological tissues. Herein, we used AIE luminogen together with multiphoton microscopy for long-term imaging of zebrafish. A typical AIE luminogen, 2,3-bis（4-（phenyl（4- （1,Z2-triphenylvinyl） phenyl）amino）phenyl） fumaronitrile （TPE-TPA-FN or TTF）, was encapsulated with 1,2-distearoyl-sn-glycero-3-phosphoethanola-mine-N- [methoxy（polyethylene glycol）-2000] （DSPE-mPEG2000） to form nanodots that exhibited bright three-photon fluorescence under 1,560 nm-femtosecond （fs） laser excitation. The TTF-nanodots were chemically stable in a wide range of pH values and showed no in vivo toxicity in zebrafish according to a series of biological tests. The TTF-nanodots were microinjected into zebrafish embryos, and the different growth stages of the labeled embryos were monitored with a three-photon fluorescence microscope. TTF-nanodots could be traced inside the zebrafish body for as long as 120 hours. In addition, the TTF-nanodots were utilized to target the blood vessel of zebrafish, and three-photon fluorescence angiogram was performed. More importantly, these nanodots were highly resistant to photobleaching under 1,560 nm-fs excitation, allowing long-term imaging of zebrafish.

关键词： biocompatible organicnanodots aggregation-inducedemission three-photon fluorescence bioimaging zebrafish

磁有序CoH_(2)SeO_(4)薄片中的室温铁电性

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Science China Materials 2024年第5期67卷 1654-1660页

作者：陈璐秋余冰沈阳刘逸飞王号南冯光迪朱秋香罗卫东刘俊明万建国赵庆彪田博博褚君浩段纯刚 Key Laboratory of Polar Materials and Devices(MOE) Shanghai Center of Brain-inspired Intelligent Materials and Devicesand Department of ElectronicsEast China Normal UniversityShanghai200241China Zhejiang Lab Hangzhou310000China Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures Nanjing UniversityNanjing210093China Key Laboratory of Artificial Structures and Quantum Control School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai200240China School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan430205China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai200083China Institute of Optoelectronics Fudan UniversityShanghai200433China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan030006China

本文通过第一性原理计算和实验表征证明了二维CoH_(2)SeO_(4)薄膜的磁有序和滑移铁电性.首先,实验结果证实了粉末CoH_(2)SeO_(4)样品的反铁磁序.同时,第一性原理计算表明单层CoH_(2)SeO_(4)具有反铁磁(AFM-I)基态(TN≈75 K),且预测了二... 详细信息

本文通过第一性原理计算和实验表征证明了二维CoH_(2)SeO_(4)薄膜的磁有序和滑移铁电性.首先,实验结果证实了粉末CoH_(2)SeO_(4)样品的反铁磁序.同时,第一性原理计算表明单层CoH_(2)SeO_(4)具有反铁磁(AFM-I)基态(TN≈75 K),且预测了二维CoH_(2)SeO_(4)薄膜具有以不对称的三重势阱态为特征的滑移铁电性,并在实验中测得了180°压电滞回线、可反转铁电畴和二次谐波信号.此外,在基于二维CoH_(2)SeO_(4)薄膜的电容器中获得铁电材料所特有的电滞回线和蝴蝶状的电容曲线.介电温谱测试表明二维CoH_(2)SeO_(4)薄膜的铁电转变温度约为370 ***_(2)SeO_(4)中滑移铁电性和反铁磁性的出现为获得低维多铁材料指出了一条新的途径.

关键词： two-dimensional materials sliding ferroelectricity multiferroic materials

川中地区震旦系灯影组-寒武系龙王庙组储层焦沥青赋存特征与成因机制

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石油实验地质 2024年第5期46卷 1039-1049页

作者：牛思琪柳广弟王云龙宋泽章朱联强赵文智田兴旺杨岱林李亿殊油气资源与探测国家重点实验室中国石油大学(北京) 北京102249 大庆油田有限责任公司成都勘探开发研究院成都610051 中国石油西南油气田公司成都610051 中国石油西南油气田公司勘探开发研究院成都610041

川中地区震旦系灯影组—下寒武统龙王庙组储层内存在明显的热液活动痕迹,焦沥青也表现出热液蚀变的特征,然而很少有研究去探讨热液活动与天然气成藏演化的关系,导致现今对灯影组油气成藏演化史的认识还存在明显不足。然而,热液对灯影组... 详细信息

川中地区震旦系灯影组—下寒武统龙王庙组储层内存在明显的热液活动痕迹,焦沥青也表现出热液蚀变的特征,然而很少有研究去探讨热液活动与天然气成藏演化的关系,导致现今对灯影组油气成藏演化史的认识还存在明显不足。然而,热液对灯影组油气成藏的影响不可忽略,要正确认识灯影组天然气的成藏演化过程并识别勘探有利区,还需要对热液裂解气聚集成藏方面进行更深入的研究。基于对焦沥青的充填特征、光学纹理及结构特征的详细研究,结合热液矿物捕获的流体包裹体地球化学的研究方法,探讨了灯影组—龙王庙组储层内焦沥青的成因,分析了热液活动与原油裂解之间的关系。川中地区灯影组—龙王庙组焦沥青形成于热液活动期间,具有与中间相相同的光学各向异性特征。焦沥青可以划分为4种类型:细粒镶嵌型、中粒镶嵌型、粗粒镶嵌型及流线型,其形成温度过300℃,远超地层最大埋深温度,显示出热液成因的特征。热液活动发生于晚二叠世,与峨眉山地幔柱活动相关,热液流体温度超过300℃,导致了灯影组—龙王庙组储层内的原油裂解。研究发现热液活动将灯影组—龙王庙组古油藏内原油裂解的时间提前到了晚二叠世,打破了灯影组—龙王庙组现有的成藏模式,有助于对天然气成藏演化过程的重新认识和聚集有利区的识别。

关键词：光学纹理焦沥青热液活动灯影组龙王庙组:川中地区

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高硼铁基耐磨合金组织性能的研究进展

辽宁科技大学学报 2023年第3期46卷 176-180,186页

作者：赵广迪李阳秦墨周王兆宇魏耀澎王天宇刘俊王茜雯心辽宁科技大学材料与冶金学院辽宁鞍山114051

高硼铁基耐磨合金是一种以硼为主要合金元素的新型耐磨材料,具有制备工艺简单、成本低、耐磨性能优异等特点,但这类合金存在韧性差的缺点,严重限制了其广泛应用。为了补足高硼铁基耐磨合金的短板,助推耐磨材料行业发展,本文综述了合金... 详细信息

高硼铁基耐磨合金是一种以硼为主要合金元素的新型耐磨材料,具有制备工艺简单、成本低、耐磨性能优异等特点,但这类合金存在韧性差的缺点,严重限制了其广泛应用。为了补足高硼铁基耐磨合金的短板,助推耐磨材料行业发展,本文综述了合金元素、变质处理和热处理对这类合金组织性能影响的研究现状,重点分析硼元素对其强韧性的影响机理,并对高硼铁基耐磨合金研究中存在的主要问题及未来的研究方向进行探讨与展望。

关键词：耐磨合金硼变质处理热处理

Application of 5G telesurgery in urology

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UroPrecision 2023年第1期1卷 31-37页

作者： Fanshuo Meng guangdi Chu zhao Zhang Hang Yuan Chengjun Li Haitao Niu Department of Urology The Affiliated Hospital of Qingdao UniversityQingdaoChina

The fifth generation of mobile communication technology(5G technology)features large system capacity,fast data transmission rate,support for large-scale device connection,low latency,and high *** the development and popularization of 5G technology,it is also widely used in *** recent years,5G telesurgery has been paid attention to and made continuous progress,and the research related to its combination with urology has also made significant *** collect the combination of 5G technology and urology improves the uneven distribution of medical resources,provides timely,highquality remote surgical interventions for urology patients,reduces the financial burden on patients,surgical complications,and the difficulty of accessing medical care from a distance,and brings new opportunities for medical development.

关键词： 5G application robot telesurgery urology

Antimony induces G2/M cell cycle arrest in A549 cells in a ROSdependent manner

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Antimony induces G2/M cell cycle arrest in A549 cells in a R...