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Coordination geometry of Zn^(2+) on hexagonal turbostratic birnessites with different Mn average oxidation states and its stability under acid dissolution

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Journal of Environmental Sciences 2018年第3期30卷 282-292页

作者： Hui Yin Xinping wang Zhangjie Qin Matthew Ginder-Vogel shuang Zhang Shuqi Jiang Fan Liu Shiwei Li jing Zhang Yan wang Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River) Ministry of Agriculture College of Resources and Environment Huazhong Agricultural University Department of Civil and Environmental Engineering Environmental Chemistry and Technology Program The University of Wisconsin-Madison Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences

Hexagonal turbostratic birnessite,with the characteristics of high contents of vacancies,varying amounts of structural and adsorbed Mn^（3＋）,and small particle size,undergoes strong adsorption reactions with trace metal（TM）*** the interactions of TM,i.e.,Zn^（2＋）,with birnessite are well understood,the effect of birnessite structural characteristics on the coordination and stability of Zn^（2＋）on the mineral surfaces under proton attack is as yet *** the present study,the effects of a series of synthesized hexagonal turbostratic birnessites with different Mn average oxide states（AOSs）on the coordination geometry of adsorbed Zn^（2＋）and its stability under acidic conditions were *** decreasing Mn AOS,birnessite exhibits smaller particle sizes and thus larger specific surface area,higher amounts of layer Mn^（3＋）and thus longer distances for the first Mn／O and Mn／Mn shells,but a low quantity of available vacancies and thus low adsorption capacity for Zn^（2＋）.Zn K-edge EXAFS spectroscopy demonstrates that birnessite with low Mn AOS has smaller adsorption capacity but more tetrahedral Zn（^（IV）Zn）complexes on vacancies than octahedral（^（VI）Zn）complexes,and Zn^（2＋）is more unstable under acidic conditions than that adsorbed on birnessite with high Mn *** Zn^（2＋）loading favors the formation of^（VI）Zn complexes over^（IV）Zn complexes,and the release of Zn^（2＋）is faster than at low *** results will deepen our understanding of the interaction mechanisms of various TMs with natural birnessites,and the stability and thus the potential toxicity of heavy metal pollutants sequestered by engineered nano-sized metal oxide materials.

关键词： Birnessite Zn2+ EXAFS Coordination Stability

The Bott-Chern and Aeppli Cohomologies of Complex Structures on S^(3)×S^(3)

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Acta Mathematica Sinica,English Series 2021年第4期37卷 581-587页

作者： jing jing wang School of Mathematical Sciences Fudan UniversityShanghai 200433P.R.China

We calculate the dimensions of Bott–Chern and Aeppli cohomologies associated to a complex structure on S^(3)×S^(3).We express them in terms mainly of Hogde numbers.

关键词： Complex structure S^(3)×S^(3) Bott–Chern cohomology Aeppli cohomology

When Electronically Inert Polymers Meet Conjugated Polymers:Emerging Opportunities in Organic Photovoltaics

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Chinese Journal of Polymer Science 2022年第8期40卷 861-869,I0006页

作者： jing-jing wang Long Ye School of Materials Science&Engineering Tianjin Key Laboratory of Molecular Optoelectronic SciencesTianjin UniversityCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin300350China State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun130033China

Insulating polymers(commodity plastics in particular)are a major category of polymeric materials widely used in our daily life,but they exhibit abysmal electrical ***,conjugated polymers are gaining tremendous interest due to their excellent electrical properties and versatile applications in organic *** this perspective,we provide a concise account of the added value in organic solar cells,as brought by the combined use of conjugated and insulating *** challenging tasks and prospective directions are given to the potential benefits of employing insulating polymer additives,which spans from common commodity plastics to high-temperature resistant resins and thermoplastic ***,the inert polymers can improve many important properties such as mechanical and thermal robustness but not sacrifice optoelectronic performance.

关键词： Organic solar cells Insulating polymers Photovoltaic polymers Miscibility Morphology

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两种方法治疗跟骨骨折的疗效比较

临床骨科杂志 2023年第3期26卷 443-447页

作者：夏洪乐王景双沈润斌冯元超贺达刘振利河北省沧州中西医结合医院创伤矫形骨科河北沧州061001

目的比较微创钢板与常规网状钢板内固定治疗跟骨骨折的疗效。方法将57例跟骨骨折患者按照内固定方法不同分为微创组(采用微创钢板内固定治疗,27例)和常规组(采用常规网状钢板内固定治疗,30例)。比较两组围手术期指标、临床观察指标、影... 详细信息

目的比较微创钢板与常规网状钢板内固定治疗跟骨骨折的疗效。方法将57例跟骨骨折患者按照内固定方法不同分为微创组(采用微创钢板内固定治疗,27例)和常规组(采用常规网状钢板内固定治疗,30例)。比较两组围手术期指标、临床观察指标、影像学指标。结果患者均获得随访,时间10~14(12.11±1.24)个月。①围手术期指标:切口长度、术中出血量、手术时间、术后抗生素使用时间、住院时间微创组均明显短(少)于常规组,差异均有统计学意义(P0.05);术后各时间点疼痛VAS评分、AOFAS踝-后足评分及足内、外翻活动度微创组均明显优于常规组(P0.05)。结论与常规网状钢板内固定相比,微创钢板内固定治疗跟骨骨折具有创伤小、关节面显露良好、手术时间短、住院时间短、并发症发生率低的优点,且患者踝关节功能恢复更满意。

关键词：跟骨骨折微创钢板常规网状钢板内固定

Ilizarov骨搬移技术轴向偏移的临床观察

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中国骨伤 2016年第1期29卷 73-76页

作者：王景双胡思斌孙宏辉郑继会赵均福刘道阔林亮邓海峰张永波河北省沧州中西医结合医院河北沧州061001

目的：探讨Iliazrov骨搬移技术治疗骨不连出现轴向偏移的角度、发生率、原因及对策。方法：自2007年1月至2012年12月,对10例骨不连患者行Ilizarov骨搬移技术治疗,其中男8例,女2例;年龄18-49岁,平均（30.3±10.6）岁。骨缺损部位：胫... 详细信息

目的：探讨Iliazrov骨搬移技术治疗骨不连出现轴向偏移的角度、发生率、原因及对策。方法：自2007年1月至2012年12月,对10例骨不连患者行Ilizarov骨搬移技术治疗,其中男8例,女2例;年龄18-49岁,平均（30.3±10.6）岁。骨缺损部位：胫骨上段2例,胫骨中段2例,胫骨下段5例,股骨上段1例。根据Paley骨缺损分型：B1型6例,B3型4例。观察术后患者发生轴向偏移角度、发生率,并采用Paley评价标准对其骨性结果进行评价。结果：10例患者术后均获得随访,时间19-32个月,平均（22.0±5.6）个月。3例患者对合端自然愈合,其余7例经植骨相应处理后愈合。佩戴外固定架时间16-28个月,末次随访时发生冠状位成角3例,成角度数5°-11°,平均（8.7±3.2）°;矢状位成角4例,成角6°-9°,平均（8.5±2.1）°。发生轴向偏移共4例。末次随访时Paley评价标准,骨性结果：优7例,良3例;功能结果：优6例,良4例。结论：轴向偏移在Ilizarov骨搬移术后较常见,造成骨愈合延迟及患肢力线不良,术中术后应采取相应措施避免或减少其发生以提高骨愈合率。

关键词： Ilizarov技术骨搬移轴向偏移外固定器

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胃间质瘤:螺旋CT表现与手术病理对照

医学影像学杂志 2005年第7期15卷 568-571页

作者：蒋力明王爽李静周纯武中国医学科学院中国协和医科大学肿瘤医院影像诊断科北京100021

目的:分析胃间质瘤的螺旋CT表现,评价螺旋CT鉴别胃间质瘤良恶性价值。方法:对29例胃间质瘤患者行螺旋CT扫描,对肿瘤的部位、大小、形态、增强特点、肿瘤与邻近器官的关系及有无转移进行回顾性分析,结果与手术病理对照。结果:良性6例,交... 详细信息

目的:分析胃间质瘤的螺旋CT表现,评价螺旋CT鉴别胃间质瘤良恶性价值。方法:对29例胃间质瘤患者行螺旋CT扫描,对肿瘤的部位、大小、形态、增强特点、肿瘤与邻近器官的关系及有无转移进行回顾性分析,结果与手术病理对照。结果:良性6例,交界性5例,恶性18例。CT表现:肿物多具有壁在性、外生性特点(23例),腔内型6例。除5例良性肿物密度均匀外,其余均表现密度不均匀。6例高度恶性肿物表现边缘强化,中心大片低密度。病理所见:肿瘤实性部分为由梭形细胞和(或)上皮样细胞组成,变性、出血、囊变及坏死在CT均表现为低密度。肿物内伴斑点样钙化1例。胰腺、脾受侵各1例,胃壁受侵7例。多平面重建图像(MPR)排除横断面诊断胰岛细胞瘤和肝癌各1例。合并肝转移2例,淋巴结转移1例。结论:胃间质瘤的CT表现与其病理组织学相关。螺旋CT特别是MPR图像,在肿瘤的检出、判断肿瘤与周围器官的关系及有无转移上发挥重要作用,在判断肿瘤的良恶性上仍有困难。

关键词：胃肿瘤,胃间质瘤体层摄影术,X线计算机病理学

Layer-by-layer alloying of NIR-Ⅱ emissive M50(Au/Ag/Cu)superatomic nanocluster

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Nano Research 2022年第6期15卷 5569-5574页

作者： Xiao-Hong Ma jing-Tao Jia Peng Luo Zhao-Yang wang shuang-Quan Zang Thomas C.W.Mak Henan Key Laboratory of Crystalline Molecular Functional Materials Henan International Joint Laboratory of Tumor Theranostical Cluster MaterialsGreen Catalysis Centerand College of ChemistryZhengzhou UniversityZhengzhou 450001China Department of Chemistry The Chinese University of Hong KongHong Kong 999077China

The intermetallic synergy plays a critical role in exploring the chemical-physical properties of metal ***,the controlled doping or layer-by-layer alloying of atom-precise metal nanoclusters(NCs)has long been a challenging *** this work,two novel alloy nanoclusters[PPh_(4)]_(4)[Ag_(32)Cu_(18)(PFBT)_(36)]((AgCu)_(50))and[PPh_(4)]_(4)[Au_(12)Ag_(20)Cu_(18)(PFBT)_(36)](Au_(12)(AgCu)_(38)),where PFBT is pentafluorobenzenethiolate,with shell-by-shell configuration of M_(12)@Ag_(20)@Cu_(18)(PFBT)_(36)(M=Ag/Au)were synthesized by a facile one-pot co-reduction ***,a fingerprint library of[Ag_(50)−xCux(PFBT)_(36)]^(4−)(x=0 to 50)from Ag_(50)to Cu_(50)has been successfully established as revealed by electrospray ionization mass ***-crystal X-ray diffraction analysis of trimetallic Au_(12)(AgCu)_(38)confirmed the layer-by-layer alloying under reducing *** is more,(AgCu)_(50)and Au12(AgCu)_(38)both show broad photoluminescence(PL)peak in the second near-infrared(NIR-II)window,and the Au doping in the innermost shell considerably enhances the photoluminescence *** work not only offers an insight in the process of metal cluster alloying but also provides a platform to study the doping-directed PL properties in the multimetallic cluster system.

关键词： alloy nanocluster second near infrared(NIR-II)emission superatom doping

A bibliometric analysis of molybdenum-based nanomaterials in the biomedical field

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Tungsten 2024年第1期6卷 17-47页

作者： Zhi-Qiang wang Ya-Wen Pan jing Wu Hong-Bin Qi shuang Zhu Zhan-Jun Gu School of Science China University of GeosciencesBeijing 100083China CAS Key Laboratory for Biomedical Eff ects of Nanomaterials and Nanosafety Institute of High Energy PhysicsBeijing 100049China CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaChinese Academy of SciencesBeijing 100190China College of Materials Science and Optoelectronic Technology University of Chinese Academy of SciencesBeijing 100049China

Molybdenum(Mo)-based nanomaterials have been widely used in biomedical fields due to their various nanostructures and unique physical/chemical *** various reviews have described the development of Mo-based materials in the biomedical field,an objective and comprehensive summary and analysis of research trends in this field is still ***,we used the bibliometric analysis method to analyze all relevant literature on the biological application of Mobased nanomaterials in recent ***,we use bibliometric tools to analyze the dataset by year,country/region,institution and research hotspot to obtain the research ***,based on objectively identified research hotspots,the biomedical applications of Mo-based nanomaterials are reviewed comprehensively,mainly including sensors,cancer imaging/therapy and antibacterial ***,we discussed the application prospects and challenges of Mo-based *** article provides a new perspective to understand the current research progress and further promote the development of Mobased nanomaterials in biomedical research.

关键词： Molybdenum Nanomaterial Biomedicine Bibliometric analysis

Danlou Tablet Improves Chronic Intermittent Hypoxia-Induced Dyslipidemia and Arteriosclerosis by HIF-1α-Angptl4 mRNA Signaling Pathway

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Chinese Journal of Integrative Medicine 2022年第6期28卷 509-517页

作者： TANG jing-jing LI Guang-xi LIU Zhi-guo YI Rong YU Dong ZHANG Yue-bo ZHAO shuang-qiao wang Shi-han Department of Pneumology Guang’anmen HospitalChinese Academy of Chinese Medical SciencesBeijing100053China Department of Pulmonary and Critical Care Medicine Mayo ClinicRochesterMN55905USA Drug Clinical Trial Agency Guang’anmen HospitalChinese Academy of Chinese Medical SciencesBeijing100053China Department of Cardiovascular Medicine Mayo ClinicRochesterMN55905USA Department of Gynecology Guang’anmen HospitalChinese Academy of Chinese Medical SciencesBeijing100053China Department of Cardiovascular Medicine Guang’anmen HospitalChinese Academy of Chinese Medical SciencesBeijing100053China

Objective:To detect whether Danlou Tablet(DLT)regulates the hypoxia-induced factor(HIF)-1α-angiopoietin-like 4(Angptl4)mRNA signaling pathway and explore the role of DLT in treating chronic intermittent hypoxia(CIH)-induced dyslipidemia and ***:The mature adipocytes were obtained from3 T3-L1 cell culturation and allocated into 8 groups including control groups(Groups 1 and 5,0.1 mL of cell culture grade water);DLT groups(Groups 2 and 6,0.1 mL of 1,000μg/mL DLT submicron powder solution);dimethyloxalylglycine(DMOG)groups(Groups 3 and 7,DMOG and 0.1 mL of cell culture grade water);DMOG plus DLT groups(Groups 4 and 8,DMOG and 0.1 mL of 1,000μg/mL DLT submicron powder solution).Groups1-4 used mature adipocytes and groups 5-8 used HIF-1α-siRNA lentivirus-transfected mature *** 24-h treatment,real-time polymerase chain reaction and Western blot were employed to determine the mRNA and protein expression levels of HIF-1αand *** animal experiments,the CIH model in ApoE^(-/-)mice was *** mice were complete randomly divided into 4 groups including sham group,CIH model group[intermittent hypoxia and normal saline(2 mL/time)gavage once a day],Angptl4 Ab group[intermittent hypoxia and Angptl4 antibody(30 mg/kg)intraperitoneally injected every week],DLT group[intermittent hypoxia and DLT(250 mg/kg)once a day],4 mice in each *** 4-week treatment,enzyme linked immunosorbent assay was used to detect the levels of serum total cholesterol(TC)and triglyceride(TG).Hematoxylin-eosin and CD68 staining were used to observe the morphological properties of arterial ***:Angptl4 expression was dependent on HIF-1α,with a reduction in mRNA expression and no response in protein level to DMOG or DLT treatment in relation to siHIF-1α-transfected *** inhibited HIF-1αand Angptl4 mRNA expression(P<0.05 or P<0.01)and reduced HIF-1αand Angptl4 protein expressions with DMOG in mature adipocytes(all P<0.01),as the effect on

关键词： Danlou Tablet Chinese medicine hypoxia-induced factor angiopoietin-like 4 dyslipidemia arteriosclerosis