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Chinese Journal of Polymer Science 2010年第2期28卷 165-170页

作者： Hans-Friedrich Enderle Dieter Lilge stephan v.roth Rainer Gehrke Jens Rieger 门永锋 Basell Polyolefine GmbH R&D65926 FrankfurtGermany HASYLAB am DESY Notkestr.8522607 HamburgGermany BASF SE Polymer Research67056 LudwigshafenGermany State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences

The structural changes around a crack tip in a high density polyethylene were investigated by means of scanning synchrotron microfocus small-angle X-ray scattering technique. The scattering data confirm the process of craze structure development near a crack tip based on the evolution of voids. In addition, it was found that the main stress in the plastic zone near a crack tip exhibited a gradient distribution with respect to its strength and direction. The whole damaged area showed a strain distribution indicating a flow behavior toward the crack tip.

关键词： High density polyethylene Microfocus SAXS Crack tip voids.

Preparation of Long-range Ordered Nanostructures in Semicrystalline Diblock Copolymer Thin Films Using Micromolding

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Chinese Journal of Polymer Science 2014年第9期32卷 1188-1198页

作者： Peng Zhang Hai-ying Huang Yu Chen Shun Yu Christina Krywka Sarathlal K.vayalil stephan v.roth 何天白 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Deutsches Elektronen-Synchrotron Hamburg D-22607 Germany Institute of High Energy Physics Chinese Academy of Sciences Institute for Applied and Experimental Physics University of Kiel Kiel D-24118 Germany Institute of Materials Research Helmholtz Zentrum Geesthacht D-21502 Geesthacht Germany

Long-range ordered nanostructures are prepared in the poly（styrene）-block-poly（e-caprolactone） diblock copolymer thin films using micromolding. We evaluated the change in crystallinity based on grazing-incidence X-ray diffraction and proved that the crystallinity increased with the decrease of the mold size. This means that ordered nanostructures with atomic length scale order can be adjusted by tuning the mesoscale confinement. The inherent mechanism was the cooperation of geometric confinement, microphase structure and surface-induced ordering of PS-b-PCL in the melt, which paved the way for the subsequent crystal growth. These findings establish a route to promote the cost-effective nanofabrication by combining the mature microfabrication technique with the emerging directed self-assembly of block copolymers.

关键词： Long-range ordered nanostructure Directed self-assembly Surface-induced ordering X-ray.

用掠入射小角X射线散射（GISAXS）研究在退火作用下乳胶膜表面结构的演化及重组

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用掠入射小角X射线散射（GISAXS）研究在退火作用下乳胶膜表面结...

喷涂制备ZnO/P3HT/P3HT-b-PEO薄膜的形貌和光电性能调控

2007年全国高分子学术论文报告会

作者：胡珊珊 Jens Riege stephan v.roth Rainer Gehrke 门永锋中国科学院长春应用化学研究所高分子物理和化学国家重点实验室 BASF Aktiengesellschaft Polymer Physics 67056 LudwigshafenGermany HASYLAB am DESY Notkestr.85 D-22607 HamburgGermany HASYLAB am DESY Notkestr.85 D-22607 HamburgGermany 高分子物理和化学国家重点实验室中国科学院长春应用化学研究所

＜正＞具有壳核结构的乳胶粒子（R=250nm）在硅片上干燥成膜后在不同温度下退火,其表面结构发生一系列演变。这一过程用掠入射小角 X 射线散射（GISAXS）和原子力显微镜（AFM）的方法对其进行了研究。体积百分数为1％的乳胶液（核/壳... 详细信息

＜正＞具有壳核结构的乳胶粒子（R=250nm）在硅片上干燥成膜后在不同温度下退火,其表面结构发生一系列演变。这一过程用掠入射小角 X 射线散射（GISAXS）和原子力显微镜（AFM）的方法对其进行了研究。体积百分数为1％的乳胶液（核/壳：聚苯乙烯/聚丙烯酸酯）

关键词：掠入射小角X射线散射 GISAXS 乳胶表面退火

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喷涂制备ZnO/P3HT/P3HT-b-PEO薄膜的形貌和光电性能调控

扫描小角X射线散射研究单轴取向高密度聚乙烯的结构演化

第七届新型太阳能电池材料科学与技术学术研讨会

作者：王昆 Lorenz Bieβmann Matthias Schwartzkopf stephan v.roth Peter Müller-Buschbaum Lehrstuhl für Funktionelle Materialien Physik-DepartmentTechnische Universit?t München

无机金属氧化物纳米结构的调控对有机-无机杂化太阳能电池性能至关重要。在无机金属氧化物中,由于ZnO具有优异的光电性能,且其形貌易于调控,因而被广泛研究。溶胶凝胶法是制备ZnO最常用的方法之一,通过溶胶凝胶法可以将溶液简单地制备... 详细信息

无机金属氧化物纳米结构的调控对有机-无机杂化太阳能电池性能至关重要。在无机金属氧化物中,由于ZnO具有优异的光电性能,且其形貌易于调控,因而被广泛研究。溶胶凝胶法是制备ZnO最常用的方法之一,通过溶胶凝胶法可以将溶液简单地制备成均匀的薄膜。然而,使用一般的溶胶凝胶法制备的ZnO结构,包括形貌和结构尺寸等都有局限性。一种优化ZnO薄膜结构的方法即在溶胶凝胶法中引入两亲性的二嵌段共聚物。其中,亲水性的嵌段和亲油性的嵌段由共价键连接在一起,在共混溶液中会形成微相分离,优化ZnO同给体材料P3HT的界面。不同于通常使用的二嵌段共聚物,在该工作中我们使用一种新的功能性的嵌段共聚物P3HT-b-PEO,其中P3HT作为光吸收材料以及空穴传输材料,而PEO嵌段作为调控ZnO形貌的模板。混合溶液通过喷涂制备成均匀的有机-无机杂化异质结活性层[1]。该方法简单易行,且在制备过程中有利于节省试剂和能源消耗,为在柔性基底上大规模制备异质结ZnO/P3HT薄膜提供有效途径。

关键词：杂化薄膜两亲性二嵌段共聚物溶胶凝胶形貌调控

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扫描小角X射线散射研究单轴取向高密度聚乙烯的结构演化

Innate and adaptive immune responses in male and female reproductive tracts in homeostasis and following HIv infection

2007年全国高分子学术论文报告会

作者：姜志勇唐毓婧 Jens Rieger Hans-Friedrich Enderle Dieter Lilge stephan v.roth Rainer Gehrke 门永锋中国科学院长春应用化学研究所高分子物理与化学国家重点实验室中国科学院长春应用化学研究所高分子物理与化学国家重点实验室 BASF Aktiengesellschaft Polymer Physics Ludwigshafen67056 Basell Polyolefine GmbH R＆D Frankfurt65926 Basell Polyolefine GmbH R＆D Frankfurt65926 HASYLAB am DESY Hamburg 22607 HASYLAB am DESY Hamburg 22607 高分子物理与化学国家重点实验室中国科学院长春应用化学研究所

＜正＞高密度聚乙烯（HDPE）是一种最简单的聚合物,它被广泛应用于各个领域,例如输水, 输气和输油的管道,高强度的纤维和容器。所有这些应用都依赖于固体高密度聚乙烯平衡的力学性能,包括它的模量,化学结构和力学上的抗断裂性。在很大... 详细信息

＜正＞高密度聚乙烯（HDPE）是一种最简单的聚合物,它被广泛应用于各个领域,例如输水, 输气和输油的管道,高强度的纤维和容器。所有这些应用都依赖于固体高密度聚乙烯平衡的力学性能,包括它的模量,化学结构和力学上的抗断裂性。在很大程度上,高密度聚乙烯的

关键词：小角X射线散射高密度聚乙烯长周期

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Cellular & Molecular Immunology 2014年第5期11卷 410-427页

作者： Philip v Nguyen Jessica K Kafka victor H Ferreira Kristy roth Charu Kaushic McMaster Immunology Research Centre (MIRC) and Michael G.DeGroote Institute ot Intectious Dtseas Research (IIDR) Department of Pathology and Molecular Medicine McMaster University Hamilton Ontario Canada

The male and female reproductive tracts are complex microenvironments that have diverse functional demands. The immune system in the reproductive tract has the demanding task of providing a protective environment for a fetal allograft while simultaneously conferring protection against potential pathogens. As such, it has evolved a unique set of adaptations, primarily under the influence of sex hormones, which make it distinct from other mucosal sites. Here, we discuss the various components of the immune system that are present in both the male and female reproductive tracts, including innate soluble factors and cells and humoral and cell-mediated adaptive immunity under homeostatic conditions. We review the evidence showing unique phenotypic and functional characteristics of immune cells and responses in the male and female reproductive tracts that exhibit compartmentalization from systemic immunity and discuss how these features are influenced by sex hormones. We also examine the interactions among the reproductive tract, sex hormones and immune responses following HIv-1 infection. An improved understanding of the unique characteristics of the male and female reproductive tracts will provide insights into improving clinical treatments of the immunological causes of infertility and the design of prophylactic interventions for the prevention of sexually transmitted infections.

关键词： female reproductive tract genital immunity HIv-1 male reproductive tract mucosal immune responses sexhormones sexually transmitted infections

Hepatitis B virus taxonomy and hepatitis B virus genotypes

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World Journal of Gastroenterology 2007年第1期13卷 14-21页

作者： stephan Schaefer Abteilung für virologie Institut für Medizini-sche MikrobiologieVirologie und HygieneUniversitt RostockSchillingallee 70D-18057 RostockGermany

Hepatitis B virus(HBv) is a member of the hepadnavirus *** can be found in both mammals(orthohepadnaviruses) and birds(avihepadnaviruses).The genetic variability of HBv is very *** are eight genotypes of HBv and three clades of HBv isolates from apes that appear to be additional genotypes of *** genotypes are now divided into subgenotypes with distinct virological and epidemiological *** addition,recombination among HBv genotypes increases the variability of *** review summarises current knowledge of the epidemiology of genetic variability in hepadnaviruses and,due to rapid progress in the field,updates several recent reviews on HBv genotypes and subgenotypes.

关键词： Orthohepadnavirus Avihepadnavirus Hepatitis B virus Genotype, Subgenotype Recombination

Predictors of disease severity in ulcerative colitis patients from Southwestern Ontario

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World Journal of Gastroenterology 2010年第2期16卷 232-236页

作者： Lee S roth Nilesh Chande Terry Ponich Maya L roth James Gregor Division of Gastroenterology London Health Sciences Centre Victoria Hospital800 Commissioner’s Road EastLondon OntarioN6A 5W9Canada Operational Stress Injury Clinic Parkwood HospitalLondonOntarioN6C 5J1Canada

AIM:To understand the demographic characteristics of patients in Southwestern Ontario,Canada with ulcerative colitis(UC)in order to predict disease severity. METHODS:Records from 1996 to 2001 were exam- ined to create a database of UC patients seen in the London Health Sciences Centre South Street Hospital Inflammatory Bowel Disease *** be included, patients'charts were required to have information of their disease presentation and a minimum of 5 years of *** were reviewed using standardized data collection *** severity was generated during the chart review process,and non-endoscopic Mayo Score criteria were collected into a composite. RESULTS:One hundred and two consecutive patients'data were entered into the *** analyses revealed that 51%of the patients were male, the mean age at diagnosis was 39 years,13.7%had a first degree relative with inflammatory bowel disease (IBD),61.8%were nonsmokers and 24.5%were *** 22.5%of patients the disease was limited to the rectum,in 21.6%disease was limited to the sigmoid colon,in 22.5%disease was limited to the left colon,and 32.4%of patients had pancolitis. Standard multiple regression analysis which regressed a composite of physician global assessment of disease severity,average number of bowel movements,and average amount of blood in bowel movements on year of diagnosis and age at time of diagnosis was significant,R 2=0.306,F(7,74)=4.66,Pverity at the time of diagnosis didnot significantly predict the composite measure. CONCLUSION:UC severity is associated with younger age at diagnosis and year of diagnosis in a longitudinal cohort of UC patients,and may identify prognostic UC indicators.

关键词： Demographic Disease severity Prognosis Ulcerative colitis

viral and cellular determinants involved in hepadnaviral entry

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World Journal of Gastroenterology 2007年第1期13卷 22-38页

作者： Dieter Glebe stephan Urban Institute of Medical virology Justus-Liebig University of Giessen Frankfurter Str. 107 D-35392 Giessen Germany Department of Molecular virology Otto Meyerhof Zentrum University of Heidelberg Im Neuenheimer Feld 350 D-69120 Heidelberg Germany

Hepadnaviridae is a family of hepatotropic DNA viruses that is divided into the genera orthohepadnavirus of mammals and avihepadnavirus of birds. All members of this family can cause acute and chronic hepatic infection, which in the case of human hepatitis B virus （HBv） constitutes a major global health problem. Although our knowledge about the molecular biology of these highly liver-specific viruses has profoundly increased in the last two decades, the mechanisms of attachment and productive entrance into the differentiated host hepatocytes are still enigmatic. The difficulties in studying hepadnaviral entry were primarily caused by the lack of easily accessible in vitro infection systems. Thus, for more than twenty years, differentiated primary hepatocytes from the respective species were the only in vitro models for both orthohepadnaviruses （e.g. HBv） and avihepadnaviruses （e.g. duck hepatitis B virus [DHBv]）. Two important discoveries have been made recently regarding HBv：（1） primary hepatoo/tes from tree-shrews; i.e., Tupaia belangeri, can be substituted for primary human hepatocytes, and （2） a human hepatoma cell line （HepaRG） was established that gains susceptibility for HBv infection upon induction of differentiation in vitro. A number of potential HBv receptor candidates have been described in the past, but none of them have been confirmed to function as a receptor. For DHBv and probably all other avian hepadnaviruses, carboxypeptidase D （CPD） has been shown to be indispensable for infection, although the exact role of this molecule is still under debate. While still restricted to the use of primary duck hepatocytes （PDH）, investigations performed with DHBv provided important general concepts on the first steps of hepadnaviral infection. However, with emerging data obtained from the new HBv infection systems, the hope that DHBv utilizes the same mechanism as HBv only partially held true. Nevertheless, both HBv and DHBv in vitro infection systems will help

关键词： Hepatitis B virus Duck hepatitis B virus Infection models Receptor viral attachment Tupaia belangeri HepaRG Carboxypeptidase D

Emergence of instability-driven domains in soft stratified materials

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npj Computational Materials 2022年第1期8卷 931-936页

作者： Jian Li viacheslav Slesarenko stephan Rudykh Key Laboratory of Traffic Safety on Track of Ministry of Education School of Traffic&Transportation EngineeringCentral South UniversityChangshaHunan410075China Joint International Research Laboratory of Key Technology for Rail Traffic Safety Central South UniversityChangsha410075China National&Local Joint Engineering Research Center of Safety Technology for Rail Traffic vehicle Central South UniversityChangsha410075China Cluster of Excellence livMatS@FIT–Freiburg Center for Interactive Materials and Bioinspired Technologies University of FreiburgGeorges-Köhler-Allee 105D-79110FreiburgGermany Department of Mechanical Engineering University of Wisconsin—MadisonMadisonWI53706USA School of Mathematical&Statistical Sciences National University of Ireland GalwayUniversity RoadGalwayIreland

Nature frequently employs the buckling phenomenon to facilitate the formation of complicated patterns across *** knowledge,however,is limited to a small set of buckling-induced microstructure transformations in soft composites;and the pattern formation phenomenon remains largely unknown for a vast pool of material ***,we investigate the unexplored rich domain of soft heterogeneous *** experimentally observe the formation of instability-driven domains in stratified composites with a non-dilute stiff *** illustrate that the discovered domain patterns are energetically favorable over ***,we introduce a closed-form analytical expression allowing us to predict the evolution of the patterns in the post-buckling ***,we show that various patterns can be pre-designed via altering material *** findings can help advance our understanding of the mechanisms governing pattern formations in soft biological tissues,and potentially enable the platform for mechanical metamaterials.

关键词： composites buckling stratified