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Structure of BaGd_2(MoO_4)_4 Crystal

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Chinese Journal of Structural Chemistry 2007年第3期26卷 328-332页

作者： zhao dan LIN Zhou-Bin wang Guo-Fu State Key Laboratory of Structural Chemistry Fujian Institute of Research on theStructure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 China Graduate School of the Chinese Academy of Sciences Beijing 100039 China

The title compound belongs to monoclinic, space group C2/c with a = 5.2694（1）, b = 12.6659（4）, c = 19.4108（2） A,β= 91.504（2）°, V = 1295.06（5） A^3, Z = 4 and Dc= 5.599 g/cm^3. The structure of BaGd2（MoO4）4 contains a MoO4 tetrahedron, a distorted GdO8 polyhedron, and Ba^2＋ ions in a tenfold coordination. The GdO8 polyhedra are linked together through edge-sharing to give a two-dimensional Gd layer. The MoO4 tetrahedra connected to the Gd atoms are capped up and down the Gd layer through common oxygen apices, thus-forming a new Gd-Mo layer. Finally, the Gd-Mo layers are held together through bridging BaO10 polyhedra to form a three-dimensional framework. Since the Ba-μ3-O bond has a large average distance of 2.888 A, this structural characteristic will result in a cleavage along the （001） plane.

关键词： Czochralski method BaGd2(MoO4)4 crystal

Regioselective synthesis of α-bromo-α,β-unsaturated carbonyl compounds via photocatalytic α-bromination reactions

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Science China Chemistry 2016年第2期59卷 190-194页

作者： dan wang Yating zhao Chao Yang Wujiong Xia State Key Laboratory of Urban Water Resource and Environment Shenzhen Graduate School Harbin Institute of Technology

A visible light-mediated approach for the preparation of α-bromo-α,β-unsaturated ketones and aldehydes was developed. In comparison to traditional methods that generally take two steps to afford the above compounds, this protocol was highlighted by its operational simplicity, avoiding using hazardous bromine and mild reaction conditions.

关键词： visible light α-bromination α β-unsaturated ketones and aldehydes operational simplicity

Reduced graphene oxide-supported CoP nanocrystals confined in porous nitrogen-doped carbon nanowire for highly enhanced lithium/sodium storage and hydrogen evolution reaction

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Nano Research 2019年第11期12卷 2872-2880页

作者： Xiaojun zhao dan Luo Yan wang Zhi-Hong Liu Key Laboratory for Macromolecular Science of Shaanxi Province School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an710062China

Rational synthesis of a hierarchical porous architecture with highly active and consecutive conductive network is very critical to achieve the high-performance of nanomaterials in electrochemical energy conversion and *** propose here a hierarchical micro-/nanostructured hybrids constructed by the dual carbon shell nanowire host containing CoP nanocrystals of several nanometers,which generates Co-based metal-organic framework on graphene oxide nanosheets in situ and followed a direct phosphorization(CoP@NC/rGO).The dual carbon shell,consisting of Co-based metal-organic framework derived porous doped carbon(NC)and reduced graphene oxide(rGO),can not only impedes CoP nanocrystals from coalescing,and renders highly exposed the electrochemically accessible active sites,but also provides the multidimensional pathways for rapid electron and ion *** importantly,the covered dual carbon shell on CoP nanocrystals plays a role as a protective layer to impede the nanocrystals’*** virtue of compositional and structural advantages,the micro-/nanostructured CoP@NC/rGO hybrids manifest outstanding energy storage properties when evaluated as anodes for lithium/sodium ion ***,it also reveals highly efficient electrocatalytic performance for hydrogen evolution reaction in acid media with low Tafel slope,overpotential and robust durability.

关键词： micro-/nanostructured metal-organic framework CoP@NC/rGO lithium/sodium ion batteries hydrogen evolution reaction

Cytochrome-c aptamer functionalized Pt nanoclusters for enhanced chemodynamic therapy

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Journal of Innovative Optical Health Sciences 2021年第4期4卷 64-71页

作者： Bo Feng dan zhao Yaowei Peng Fu wang Med-X Research Institute and School of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200240P.R.China

Catalysis-based chemodynamic therapy(CDT)is an emerging cancer treatment strategy which uses a Fenton-like reaction to kill tumor cells by catalyzing endogenous hydrogen peroxide(H_(2)O_(2))into a toxic hydroxyl radical(·OH).The performance of CDT is greatly dependent on PDT ***,mitochondria-targeting Pt nanoclusters were synthesized using cytochrome c aptamer(CytcApt)as *** obtained CytcApt-PtNCs can *** by H_(2)O_(2)under the acidic ***,CytcApt-PtNCs could kill 4T1 tumor cells in a pH-dependent manner,but had no side effect on normal 293T ***,CytcApt-PtNCs possess excellent therapeutic effect and good biosafety,indicating their great potential for CDT.

关键词： chemodynamic therapy Pt nanoclusters cytochrome c aptamer

Defects‑Rich Heterostructures Trigger Strong Polarization Coupling in Sulfides/Carbon Composites with Robust Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第1期17卷 528-547页

作者： Jiaolong Liu Siyu Zhang dan Qu Xuejiao Zhou Moxuan Yin Chenxuan wang Xuelin Zhang Sichen Li Peijun Zhang Yuqi Zhou Kai Tao Mengyang Li Bing Wei Hongjing Wu Mengyang Li Bing Wei Hongjing Wu School of Physics Xidian UniversityXi’an 710071People’s Republic of China School of Advanced Materials and Nanotechnology State Key Discipline Laboratory of Wide Band Gap Semiconductor TechnologyXidian UniversityXi’an 710071People’s Republic of China School of Microelectronics Xidian UniversityXi’an 710071People’s Republic of China School of Telecommunication Engineering Xidian UniversityXi’an 710071People’s Republic of China MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China The Ministry of Education Key Laboratory of Micro and Nano Systems forAerospace School of Mechanical EngineeringNorthwestern PolytechnicalUniversityXi’an 710072People’s Republic of China

Defects-rich heterointerfaces integrated with adjustable crystalline phases and atom vacancies,as well as veiled dielectric-responsive character,are instrumental in electromagnetic *** methods,however,constrain their delicate ***,an innovative alternative is proposed:carrageenan-assistant cations-regulated(CACR)strategy,which induces a series of sulfides nanoparticles rooted in situ on the surface of carbon *** unique configuration originates from strategic vacancy formation energy of sulfides and strong sulfides-carbon support interaction,benefiting the delicate construction of defects-rich heterostructures in M_(x)S_(y)/carbon composites(M-CAs).Impressively,these generated sulfur vacancies are firstly found to strengthen electron accumulation/consumption ability at heterointerfaces and,simultaneously,induct local asymmetry of electronic structure to evoke large dipole moment,ultimately leading to polarization coupling,i.e.,defect-type interfacial ***“Janus effect”(Janus effect means versatility,as in the Greek two-headed Janus)of interfacial sulfur vacancies is intuitively confirmed by both theoretical and experimental investigations for the first ***,the sulfur vacancies-rich heterostructured Co/Ni-CAs displays broad absorption bandwidth of 6.76 GHz at only 1.8 mm,compared to sulfur vacancies-free CAs without any dielectric *** defects-rich heterostructures,this one-pot CACR strategy may steer the design and development of advanced nanomaterials,boosting functionality across diverse application domains beyond electromagnetic response.

关键词： Defects-rich heterointerfaces Sulfides Polarization coupling Electromagnetic wave absorption

Intelligent networking in adversarial environment:challenges and opportunities

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Science China(Information Sciences) 2022年第7期65卷 5-15页

作者： Yi zhao Ke XU Qi LI Haiyang wang dan wang Min ZHU Department of Computer Science and Technology Tsinghua University Department of Computer Science University of Minnesota Duluth Institute for Network Sciences and Cyberspace Tsinghua University Department of Computing The Hong Kong Polytechnic University Beijing National Research Center for Information Science and Technology (BNRist)

Although deep learning technologies have been widely exploited in many fields, they are vulnerable to adversarial attacks by adding small perturbations to legitimate inputs to fool targeted ***, few studies have focused on intelligent networking in such an adversarial environment, which can pose serious security threats. In fact, while challenging intelligent networking, adversarial environments also bring about opportunities. In this paper, we, for the first time, simultaneously analyze the challenges and opportunities that the adversarial environment brings to intelligent networking. Specifically, we focus on challenges that the adversarial environment will pose on the existing intelligent networking. Furthermore, we investigate frameworks and approaches that combine adversarial machine learning with intelligent networking to solve the existing deficiencies of intelligent networking. Finally, we summarize the issues, including opportunities and challenges, which can allow researchers to focus on intelligent networking in adversarial environments.

关键词： intelligent networking adversarial attacks defense security

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Hollow Micro-/Nanostructure Reviving Lithium-sulfur Batteries

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Chemical Research in Chinese Universities 2020年第3期36卷 313-319页

作者： zhao Jilu YANG Mei Yang Nailiang wang Jiangyan wang dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China

Higb-energy-density lhiumslu(Li-S)bttries are drawing dramatic research interests to fulill the ever-increasing demands of etrical ***,chllenges with the insulating poperty of sulfur and its lihistion products aund its large volume expansion,aund the sutle eflet of lthiumn polysulides,hinder the commer-cial application of Li-S *** of material design concepts have bocn developed to address the failure *** them,bollw micro-/anostructures with abundant compositional und geometrical feasibility have been prored fuitful in adresing the cureut obstacles of LiS bttries Here,lypical examples of designing hollw mi-co-/anostructures to address the problemns of Li-S bttries and sinultuneously improve the practical capacity and lifespan are *** purticular,the great efeet of structural engineering on minimizing volume change,inhi-biting the shutle efiet and catalyzing plysulide conversion are disussed systeatically. Fially fuure dreetions of hollow nanostrucure design to enhance the progress of Li-S butteries are also provided.

关键词： Hollow Mico-/nanostructure Lithium-ulfur buttary

螺内酯对心肌肥厚大鼠左心室可溶性ST2及核转录因子_κB的影响

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中华高血压杂志 2017年第9期25卷 841-846页

作者：邢瑞星琚肖肖井海云赵玉兰王丹刘刚包晓青陈文哲郑州市中心医院心血管内科河南郑州450014 郑州大学第二附属医院心内科

目的探讨螺内酯对心肌肥厚大鼠可溶性ST2(sST2)及核转录因子_κB(NF-_κB)的影响。方法选取健康雄性SD大鼠30只,随机分为对照组(n=10)、模型组(n=10)、药物干预组(n=10)。对照组大鼠皮下注射生理盐水;模型组皮下注射异丙肾上腺素(ISO);... 详细信息

目的探讨螺内酯对心肌肥厚大鼠可溶性ST2(sST2)及核转录因子_κB(NF-_κB)的影响。方法选取健康雄性SD大鼠30只,随机分为对照组(n=10)、模型组(n=10)、药物干预组(n=10)。对照组大鼠皮下注射生理盐水;模型组皮下注射异丙肾上腺素(ISO);药物干预组皮下注射ISO,同时给予螺内酯20mg/(kg·d)灌胃。14d后处死大鼠,计算心脏质量/体质量、左心室质量/体质量,观察心肌细胞直径;免疫组化及逆转录聚合酶链反应(RT-PCR)法检测心肌组织中sST2及NF-_κB的表达;Masson染色观察心肌纤维化程度。结果与对照组比,模型组心脏质量/体质量、左心室质量/体质量、心肌细胞直径升高[(3.39±0.11)比(2.47±0.07)mg/g,(2.34±0.11)比(1.78±0.07)mg/g,(26.30±0.95)比(14.53±0.47)μm;均P<0.05];sST2与NF-_κB mRNA和蛋白表达升高(均P<0.05)。与模型组比较,药物干预组心脏质量/体质量、左心室质量/体质量、心肌细胞直径降低[(2.79±0.07)比(3.39±0.11)mg/g,(1.92±0.10)比(2.34±0.11)mg/g,(20.96±0.65)比(26.30±0.95)μm;均P<0.05],sST2与NF-_κB mRNA和蛋白表达降低(均P<0.05)。心肌纤维化程度:模型组大于对照组,干预组小于模型组。结论螺内酯可能通过调节sST2的表达,抑制下游NF-_κB的表达,对抗ISO诱导的大鼠心肌肥厚。

关键词：螺内酯心肌肥厚可溶性ST2 核转录因子_κB

Experimental study on slope sliding and debris flow evolution with and without barrier

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Water Science and Engineering 2015年第1期8卷 68-77页

作者： Ji-kun zhao dan wang Jia-hong Chen College of Engineering Nanjing Agricultural University Jiangsu Key Laboratory for Intelligent Agricultural Equipment Nanjing Agricultural University College of Civil Engineering Tongji University

A constitutive model on the evolution of debris flow with and without a barrier was established based on the theory of the Bingham model. A certain area of the Laoshan Mountain in Nanjing, Jiangsu Province, in China was chosen for experimental study, and the slope sliding and debris flow detection system was utilized. The change curve of the soil moisture content was attained, demonstrating that the moisture content of the shallow soil layer increases faster than that of the deep soil layer, and that the growth rate of the soil moisture content of the steep slope is large under the first weak rainfall, and that of the gentle slope is significantly affected by the second heavy rainfall. For the steep slope, slope sliding first occurs on the upper slope surface under heavy rainfall and further develops along the top platform and lower slope surface, while under weak rainfall the soil moisture content at the lower part of the slope first increases because of the high runoff velocity, meaning that failure occurring there is more serious. When a barrier was placed at a high position on a slope, debris flow was separated and distributed early and had less ability to carry solids, and the variation of the greatest depth of erosion pits on soil slopes was not significant.

关键词： Debris flow Slope sliding Geological disaster Time domain reflectometry (TDR) technique Detection system Constitutive model