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Plasmonic enhancement and polarization dependence of nonlinear upconversion emissions from single gold nanorod@SiO_(2)@CaF2:Yb^(3+),er^(3+)hybrid core–shell–satellite nanostructures

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Light(Science & Applications) 2016年第1期5卷 224-234页

作者： Jijun He Wei Zheng Filip Ligmajer Chi-Fai Chan Zhiyong Bao ka-Leung Wong Xueyuan Chen Jianhua Hao Jiyan Dai Siu-Fung Yu Dang Yuan Lei Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002China Central european Institute of Technology Brno University of TechnologyBrno 61669Czech Republic Department of Chemistry Hong Kong Baptist UniversityHong KongChina

Lanthanide-doped upconversion nanocrystals(UCNCs)have recently become an attractive nonlinear fluorescence material for use in bioimaging because of their tunable spectral characteristics and exceptional *** materials are often introduced into the vicinity of UCNCs to increase their emission intensity by means of enlarging the absorption cross-section and accelerating the radiative decay ***,plasmonic nanostructures(e.g.,gold nanorods,GNRs)can also influence the polarization state of the UC fluorescence—an effect that is of fundamental importance for fluorescence polarization-based imaging methods yet has not been discussed *** study this effect,we synthesized GNR@SiO_(2)@CaF2:Yb^(3+),er^(3+)hybrid core–shell–satellite nanostructures with precise control over the thickness of the SiO_(2) *** evaluated the shell thicknessdependent plasmonic enhancement of the emission intensity in ensemble and studied the plasmonic modulation of the emission polarization at the single-particle *** hybrid plasmonic UC nanostructures with an optimal shell thickness exhibit an improved bioimaging performance compared with bare UCNCs,and we observed a polarized nature of the light at both UC emission bands,which stems from the relationship between the excitation polarization and GNR *** used electrodynamic simulations combined with Förster resonance energy transfer theory to fully explain the observed *** results provide extensive insights into how the coherent interaction between the emission dipoles of UCNCs and the plasmonic dipoles of the GNR determines the emission polarization state in various situations and thus open the way to the accurate control of the UC emission anisotropy for a wide range of bioimaging and biosensing applications.

关键词： Förster resonance energy transfer gold nanorods lanthanide-doped upconversion nanocrystals plasmon-enhanced nonlinear fluorescence polarization modulation

Main Directions and Recent Test Modeling Results of Lithium Capillary-Pore Systems as Plasma Facing Components

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Plasma Science and Technology 2004年第3期6卷 2291-2295页

作者： V.A.evtikhin I.e.Lyublinski A.V.Vertkov e.A.Azizov S.V.Mirnov V.B.Lazarev S.M.Sotnikov V.M.Safronov A.S.Prokhorov V.M.korzhavin FSUe "Red Star"-"Prana-Center" Co Moscow Russian FSUe TRINITI Troitsk Moscow region Russian Federation RF Ministry for Atomic energy Moscow

At present the most promising principal solution of the divertor problemappears to be the use of liquid metals and primarily of lithium Capillary-Pore Systems (CPS) as ofplasma facing materials. A solid CPS filled with liquid lithium will have a high resistance tosurface and volume damage because of neutron radiation effects, melting, splashing and thermalstress-induced cracking in steady state and during plasma transitions to provide the normaloperation of divertor target plates and first-wall protecting elements. These materials will not bethe sources of impurities inducing an increase of Z_(eff) and they will not be collected as dust inthe divertor area and in ducts. experiments with lithium CPS under simulating conditions of plasmadisruption on a hydrogen plasma accelerator Mk-200 [~ (10 - 15) MJ/m^2, ~ 50 μs] have beenperformed. The formation of a shielding layer of lithium plasma and the high stability of thesesystems have been shown. The new lithium limiter tests on an up-graded T-11M tokamak (plasma currentup to 100 ka, pulse length ~0.3 s) have been performed. Sorption and desorption of plasma-forminggas, lithium emission into discharge, lithium erosion, deposited power of the limiter areinvestigated in these experiments. The first results of experiments are presented.

关键词： lithium divertor plasma facing material

过硫代碳酸配体[CS_4]^(2-)生成的新方法──[me_4N]_n[Cu(CS_4)]_n(I)和[me_4N]_4[Cu_4(CS_4)_4](Ⅱ)的合成与晶体结构

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高等学校化学学报 2001年第5期22卷 717-721页

作者：汤卡罗金祥林龙耀玲崔澎唐有祺北京大学物理化学研究所北京100871

用硒酚铜簇合物和硫酚铜簇合物 [me4 N]2 [Cu4 (ePh) 6](e=Se和 S)与 CS2 及少量 S反应 ,分别获得了以过硫代碳酸根 [CS4 ]2 -为配体的 [me4 N]n[Cu(CS4 ) ]n( )和 [me4 N]4 [Cu4 (CS4 ) 4]( ) .并用 X射线单晶衍射法测定了它们的晶体结... 详细信息

用硒酚铜簇合物和硫酚铜簇合物 [me4 N]2 [Cu4 (ePh) 6](e=Se和 S)与 CS2 及少量 S反应 ,分别获得了以过硫代碳酸根 [CS4 ]2 -为配体的 [me4 N]n[Cu(CS4 ) ]n( )和 [me4 N]4 [Cu4 (CS4 ) 4]( ) .并用 X射线单晶衍射法测定了它们的晶体结构 . 为二维层状聚合物 , 为四核铜簇阴离子化合物 .并对 [CS4 ]2

关键词：过硫代碳酸配体四核铜簇合物二维层状聚合物晶体结构合成

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剖宮產後陰道試產的臨床分析

镜湖医学 2018年第1期18卷 27-29,12页

作者：蔡嘉慧澳門鏡湖醫院婦產科中國

目的探討疤痕子宮陰道試產的可行性和選擇指徵,並進行安全性評估。方法回顧分析自本院2015年7月-2017年6月748例疤痕子宫再次妊娠孕婦的分娩方式;並將其中192例經陰道分娩的產婦(觀察組)與200例首次經陰道分娩的初產婦(實驗組)作對比,... 详细信息

目的探討疤痕子宮陰道試產的可行性和選擇指徵,並進行安全性評估。方法回顧分析自本院2015年7月-2017年6月748例疤痕子宫再次妊娠孕婦的分娩方式;並將其中192例經陰道分娩的產婦(觀察組)與200例首次經陰道分娩的初產婦(實驗組)作對比,記錄並比較產時出血量.住院天數及新生兒1min Agpar評分。結果疤痕子宫再次妊娠孕婦經陰道試產成功共192例,佔疤痕子宫再次妊娠分娩量25.66%;陰道試產成功率為73.8%。觀察組與.對照組比較產時出血量、住院時間、新生兒Agpar 1min評分均無統計學意義(P>0.05)。結論嚴格掌握適應症、做好產程監護,疤痕子宫陰道試產對母嬰是安全的,且成功率高。

关键词：疤痕子宫陰道試產疤痕子宫陰道分娩疤痕子宫驗

Demons-meigs Syndrome: A Case Report at the Fatick Regional Hospital

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Open Journal of Obstetrics and Gynecology 2021年第12期11卷 1735-1743页

作者： Abdoulaye Mihimit Alhassane Ismael Toure Oumar Abakar Oumar Bafode Camara Abdoulaye keita Malick Bah ermerlindo Rodrigues Pereira Ibrahima Dara Diamé Bangaly Traore Sidy ka Ahmadou Dem Centre Hospitalier Régional de Fatick Fatick Sénégal Université de N’Djamena N’Djamena Tchad Université Cheikh Anta Diop de Dakar Dakar Sénégal Centre Hospitalier Universitaire de Fann Dakar Sénégal Hô pital Jean Paul II Conakry Guinée Centre Hospitalier Universitaire Le Dantec Dakar Sénégal

Demons-meigs syndrome combines a benign tumor of the ovary with thoracic and abdominal effusion, it is a rare disease whose pathophysiological mechanism is not yet well understood. This rare syndrome often gives rise ... 详细信息

Demons-Meigs syndrome combines a benign tumor of the ovary with thoracic and abdominal effusion, it is a rare disease whose pathophysiological mechanism is not yet well understood. This rare syndrome often gives rise to fear of ovarian neoplasia due to the existence of ascites and the significant elevation of CA 125. In this observation, we report the case of Demons-Meigs syndrome diagnosed in a 36-year-old young woman who presented with pleural and peritoneal effusion syndrome with an ovarian mass and a CA 125 level = 406.6 IU/ml. Laparotomy performed revealed very abundant ascites, the uterus and tubes were healthy, no suspicious peritoneal lesions, the left ovary is healthy, a right ovarian mass of 300 × 150 mm. A right annexectomy was performed. The operative suites were simple with drying of the effusions. The control CA 125 returned to normal after 6 months of follow-up. A pathological anatomy result is a fibrothecoma. Demons-meigs syndrome has a good progno

关键词： Demons-meigs Syndrome Ovarian Tumor CA 125 Ascites Hydrothorax Senegal

Controlled release and biocompatibility of polymer/titania nanotube array system on titanium implants

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Bioactive Materials 2017年第1期2卷 44-50页

作者： Tingting Wang Zhengyang Weng Xiangmei Liu kelvin W.k.Yeung Haobo Pan Shuilin Wu Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymer MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhanChina Division of Spine Surgery Department of Orthopaedics&TraumatologyLi Ka Shing Faculty of MedicineThe University of Hong KongPokfulamHong KongChina Center for Human Tissues and Organs Degeneration Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055China

Bacterial infection and tissue inflammation are the major causes of early failure of titanium-based orthopedic implants;thus,surgical implants with tunable drug releasing properties represent an appealing way to address some of these problems of bacterial infection and tissue inflammation in early age of orthopedic *** this work,a hybrid surface system composed of biodegradable poly(lactic-coglycolic acid)(PLGA)and titania nanotubes(TNTs)has been successfully constructed on Ti implants with the aim of preventing bacterial infection via long-term drug *** varying the size of the TNTs and the thickness of the polymer film,the drug release profile can be tuned to achieve the optimal therapeutic action throughout the treatment *** size of TNTs plays a dominant role in the drug loading dose of TNTs/PLGA hybrid *** this work,TNTs with an average size of 80 nm can achieve the largest loading *** on the polymer thickness,significant improvement in the drug release characteristics is attained,for instance,reduced burst release(from 84%to 27%)and overall release time extended from 5 to over 40 *** addition,the PLGA layers may favor the proliferation and osteogenesis of MC3T3-e1 mouse cells at an earlier ***,this TNT/PLGA hybrid surface system can be employed as an effective bioplatform for improving both self-antibacterial performance and biocompatibility of Ti-based biomaterials.

关键词： Antibacterial Biocompatibility Coating Drug delivery Implants

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地黄药理药化及配伍研究

时珍国医国药 2012年第3期23卷 748-750页

作者：刘朵章丹丹卞卡上海中医药大学穆拉德中药现代化研究中心上海201203 美国德克萨斯大学休斯顿医学院综合生物及药理学系分子医学研究所休斯顿tx77030

地黄是我国常用的大宗中药。近年来研究人员对其不同炮制方法的生地黄、鲜地黄、熟地黄的化学成分、药理作用及其在临床配伍研究应用有较多研究。

关键词：地黄化学成分药理作用配伍

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NF-κB与疾病及中药介入

时珍国医国药 2011年第1期22卷 62-65页

作者：张晨晨刘俊卞卡上海中医药大学穆拉德中药现代化研究中心上海201203 美国德克萨斯大学休斯敦医学院综合生物及药理学系德克萨斯大学分子医学研究所休斯敦TX77030

核因子NF-κB(Nuclear factor kappa-B,NF-κB)是一个大的转录因子家族,调控着多种炎症因子的表达。它在动脉粥样硬化、关节炎、哮喘、肿瘤等疾病的发展中都起了重要的作用。文章介绍了NF-κB活化的调控机制,包括经典途径和旁路途径,并... 详细信息

核因子NF-κB(Nuclear factor kappa-B,NF-κB)是一个大的转录因子家族,调控着多种炎症因子的表达。它在动脉粥样硬化、关节炎、哮喘、肿瘤等疾病的发展中都起了重要的作用。文章介绍了NF-κB活化的调控机制,包括经典途径和旁路途径,并对NF-κB信号通路在以上相关疾病发生过程的作用及中药对其的影响进行了探讨,尤其着重论述了NF-κB对动脉粥样硬化的影响和相关中药通过阻断或抑制NF-κB信号通路来治疗此病的最新研究成果。

关键词： NF-κB 动脉粥样硬化中药

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我国产业结构与就业结构协调发展路径探析

哈尔滨商业大学学报（社会科学版） 2014年第2期 3-10页

作者：沈滨李许卡西北师范大学经济学院兰州730070

合理的产业结构和就业结构是我国经济持续健康发展的必要前提。通过对三次产业结构偏离度的分析,发现了我国就业结构调整滞后于产业结构调整这一事实;进一步利用相关系数矩阵、就业贡献率来考查三次产业的发展与我国就业的关系,得出第... 详细信息

合理的产业结构和就业结构是我国经济持续健康发展的必要前提。通过对三次产业结构偏离度的分析,发现了我国就业结构调整滞后于产业结构调整这一事实;进一步利用相关系数矩阵、就业贡献率来考查三次产业的发展与我国就业的关系,得出第三产业对促进就业的重要作用这一结论;并考查TFP和DeeP对我国就业的影响,发现现阶段的技术进步和资本深化对劳动力产生了替代作用;最后,提出了促进劳动力流动和扩大就业的政策建议。

关键词：产业结构就业结构滞后性协调发展