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Surface Plasmon Resonance and Raman Scattering Activity of the Au/AgxO/Ag Multilayer Film

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Chinese Physics Letters 2014年第4期31卷 147-149页

作者： ZHONG Yu-Ting CHENG zi-qiang MA Liang wang Jia-Hong HAO Zhong-Hua wang Qu-Quan Key Laboratory of Artificial Micro- and Nano-structures of the Ministry of Education and School of Physics and Technology Wuhan University Wuhan 430072

The nanostructured Au/AgxO/Ag sandwich multilayer films on quartz substrates are prepared by the magnetron sputtering method. The morphology, plasmon resonance and surface enhanced Raman scattering （SERS） activi- ties of the multilayer films are studied. The resonant absorption wavelength of localized surface plasmon is tuned in a wide range from 618nm to 993nm by controlling the density of nanoparticles of Au and Ag. The SERS activity of the Au/AgxO/Ag multilayer films are enhanced over -10 times compared with those of bare Ag and bare Au films. These properties may find a potential application in biosensor and bioimaging.

关键词： Multilayer Film Surface magnetron

Quantitative measurement of magnetic parameters by electron magnetic chiral dichroism

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Chinese Physics B 2018年第5期27卷 1-11页

作者： Dong-Sheng Song zi-qiang wang Xiao-Yan Zhong Jing Zhu National Center for Electron Microscopy in Beijing Key Laboratory of Advanced Materials （MOE） and the State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Electron magnetic circular dichroism opens a new door to explore magnetic properties by transmitted electrons in the transmission electron microscope. However, obtaining quantitative magnetic parameters, such as spin and orbital magnetic moment with element-specificity, goes a long way along with the development and improvement of this technique both in theoretical and experimental aspects. In this review, we will give a detailed description of the quantitative electron magnetic circular dichroism（EMCD） technique to measure magnetic parameters with spin-specificity, element-specificity,site-specificity, and orbital-spin-specificity. The discussion completely contains the procedures from raw experimental data acquisition to final magnetic parameters, together with the related custom code we have developed.

关键词： quantitative electron magnetic circular dichroism (EMCD) technique dynamical diffraction effects spin and orbital magnetic moment

Long-term outcome of indwelling colon observed seven years after radical resection for rectosigmoid cancer: A case report

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World Journal of Clinical Cases 2021年第19期9卷 5252-5258页

作者： zi-Xuan Zhuang Ming-Tian Wei Xu-Yang Yang Yang Zhang Wen Zhuang zi-qiang wang Department of Gastrointestinal Surgery West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Indwelling colon is characterized by an excluded segment of the colon after surgical diversion of the fecal stream with colostomy so that contents are unable to pass through this part of the *** report a rare case of purulent colonic necrosis that occurred 7 years after surgical colonic *** SUMMARY A 73-year-old male had undergone extended radical resection for rectosigmoid *** invaded ileocecal area and sigmoid colon were removed during the procedure,and the ileum was anastomosed side-to-side with the *** excluded ascending,transverse,and descending colon were sealed at both ends and left in the *** 7 years,the patient developed persistent abdominal pain and ***-up indicated intestinal *** patient underwent ultrasound-guided catheter drainage of the descending colon and a large amount of viscous liquid was drained,but the symptoms persisted;therefore,surgery was ***,extensive adhesions were found in the abdominal cavity,and the small intestine and the indwelling colon were widely *** dilated colon was 56 cm long,5 cm wide(diameter),and contained about 1500 mL of viscous *** indwelling colon was surgically removed and its histopathological examination revealed colonic congestion and necrosis with hyperplasia of granulation *** bacterial culture of the secretions was *** patient recovered after the *** Although colonic exclusion is routinely performed,this report aimed to increase awareness regarding the possible long-term complications of indwelling colon.

关键词： Colon Colectomy Intestinal obstruction Diversion colitis Sigmoid cancer Colitis Case report

The effects of PAF antagonist on intestinal mucosal microcirculation after burn in rats

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World Journal of Gastroenterology 2000年第6期6卷 906-908页

作者： Pei Wu Yu Guang Xia Xiao Xiao jian Qin Li Xin Zhou zi qiang wang Department of General Surgery Southwest HospitalThird Military Medical UniversityChongqing 400038China Institute of Burn Research Southwest HospitalThird Military Medical UniversityChongqing 400038China

INTRODUCTIONGut originated infection(GOI)has been recognizedas a potential factor for postburn irreversible shock,early sepsis and multiple system organ *** intestinal mucosal barrier injury has beenimplicated as the ... 详细信息

关键词： platelet activating factor intestinal mucosa intramucosal PH burn

Transthoracic vs transhiatal surgery for cancer of the esophagogastric junction:A meta-analysis

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World Journal of Gastroenterology 2014年第29期20卷 10183-10192页

作者： Ming-Tian Wei Yuan-Chuan Zhang Xiang-Bing Deng Ting-Han Yang Ya-Zhou He zi-qiang wang Department of Gastrointestinal Surgery West China HospitalSichuan University

AIM:To compare the efficacy and safety of the transthoracic and transhiatal approaches for cancer of the esophagogastric ***:An electronic and manual search of the literature was conducted in PubMed,EmBase and the Cochrane Library for articles published between March1998 and January *** pooled data included the following parameters:duration of surgical time,blood loss,dissected lymph nodes,hospital stay time,anastomotic leakage,pulmonary complications,cardiovascular complications,30-d hospital mortality,and long-term *** analysis was performed by excluding single ***:Eight studies including 1155 patients with cancer of the esophagogastric junction,with 639 patients in the transthoracic group and 516 in the transhiatal group,were pooled for this *** were no significant differences between two groups concerning surgical time,blood loss,anastomotic leakage,or cardiovascular *** lymph nodes also showed no significant differences between two groups in randomized controlled trials(RCTs)and ***,we did observe a shorter hospital stay(WMD=1.92,95%CI:1.63-2.22,P<0.00001),lower30-d hospital mortality(OR=3.21,95%CI:1.13-9.12,P=0.03),and decreased pulmonary complications(OR=2.95,95%CI:1.95-4.45,P<0.00001)in the transhiatal *** overall survival,a potential survival benefit was achieved for typeⅢtumors with the transhiatal ***:The transhiatal approach for cancers of the esophagogastric junction,especially typesⅢ,should be recommended,and its long-term outcome benefits should be further evaluated.

关键词： Transthoracic surgery Transhiatal surgery Cancer of the esophagogastric junction Meta-analysis

Dynamic Pathology and Antigen Location Study on Broiler Breeders with Coinfection of Marek's Disease Virus and Reticuloendotheliosis Virus

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Agricultural Sciences in China 2008年第11期7卷 1387-1393页

作者： DIAO Xiu-guo ZHU Guo CHENG zi-qiang wang Gui-hua MENG Xiang-kai GAO Ting-ting CUI Zhi-zhong College of Animal Science and Veterinary Medicine Shangdong Agricultural University Tai ＇an 271018 P.R. China

To further understand the generation and development of coinfection of Marek＇s disease virus （MDV） and reticuloendotheliosis virus （REV） in broiler breeders, and then find the method and optimal time of differential diagnosis for complex clinic multiple infection, the authors studied the pathohistological changes, apoptosis, immunohistochemistry （immunofluorescence）, and ultrastructure of tumor tissues of broiler breeders inoculated with MDV and REV. The study showed that proliferation of small lymphocytes was seen in the main organs at the age of 1 week, then immature lymphocytes, all kinds of lymphocytes, primitive reticulum cells, and Marek＇s disease cells （MDCs） were observed at 2-9 weeks. Apoptosis of lymphocytes could not be seen until the age of 10 weeks in the immune system. Immunohistochemistry detection showed that the positive signs of MDV and REV antigen were observed in the main organs at 2 weeks of age. Multi-morphology lymphocytes, MDV, and REV, mitotic figures and apoptosis of lymphocytes were observed with the help of transmission electron microscopy. MDV cooperating with REV promotes the course of disease of coinfection. Differential diagnosis can be done by immunohistochemistry in the early stage （before 2 weeks）, and histopathology in the late stage （post 4 weeks）. MDCs, primitive reticulum cells, immature lymphocytes, and two kinds of virions can serve as a basis for bistopathology differential diagnosis.

关键词： Marek's disease virus reticuloendotheliosis virus coinfection dynamic pathology antigen location

Is Dor fundoplication optimum after laparoscopic Heller myotomy for achalasia? A meta-analysis

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World Journal of Gastroenterology 2013年第43期19卷 7804-7812页

作者： Ming-Tian Wei Ya-Zhou He Xiang-Bing Deng Yuan-Chuan Zhang Ting-Han Yang Cheng-Wu Jin Bing Hu zi-qiang wang Department of Gastrointestinal Surgery West China HospitalSichuan University Endoscopic Center West China HospitalSichuan University

AIM:To compare the outcome of acid reflux prevention by Dor fundoplication after laparoscopic Heller myotomy(LHM)for ***:Electronic database PubMed,Ovid(Evidence-Based Medicine Reviews,EmBase and Ovid MEDLINE)and Cochrane Library were searched between January 1995 and September *** citation management software(EndNote X3)was used for extracted literature *** assessment of random controlled studies(RCTs)and non-RCTs was performed according to the Cochrane Handbook for Systematic Reviews of Interventions 5.1.0and a modification of the Newcastle-Ottawa Scale,*** data were analyzed using Review Manager(Version 5.1),and sensitivity analysis was performed by sequentially omitting each ***:Finally,6 studies,including a total of 523achalasia patients,compared Dor fundoplication with other types of fundoplication after LHM(Dor-other group),and 8 studies,including a total of 528 achalasia patients,compared Dor fundoplication with no fundoplication after LHM(Dor-no group).Dor fundoplication was associated with a significantly higher recurrence rate of clinical regurgitation and pathological acid reflux compared with the other fundoplication group(OR=7.16,95%CI:1.25-40.93,P=0.03,and OR=3.79,95%CI:1.23-11.72,P=0.02,respectively).In addition,there were no significant differences between Dor fundoplication and no fundoplication in all *** outcomes,including complications,dysphagia,postoperative physiologic testing,and operation-related data displayed no significant differences in the two comparison ***:Dor fundoplication is not the optimum procedure after LHM for *** suggest more attention should be paid on quality of life among different fundoplications.

关键词： Laparoscopic Heller myotomy Dor fundoplication Gastroesophageal reflux Achalasia Metaanalysis

Experimental Observations Indicating the Topological Nature of the Edge States on HfTe5

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Chinese Physics Letters 2019年第11期36卷 56-59页

作者： Rui-Zhe Liu Xiong Huang Ling-Xiao Zhao Li-Min Liu Jia-Xin Yin Rui Wu Gen-Fu Chen zi-qiang wang Shuheng HPan Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190 Physical Science Laboratory Huairou National Comprehensive Science CenterHuairouBeijing 101400 School of Physics University of Chinese Academy of SciencesBeijing 100190 Laboratory for Topological Quantum Matter and Advanced Spectroscopy(B7) Department of PhysicsPrinceton UniversityPrincetonNJUSA Songshan Lake Material Laboratory Dongguan 523808 Department of Physics Boston CollegeChestnut HillMassachusetts 02467USA CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190

The topological edge states of two-dimensional topological insulators with large energy gaps furnish ideal conduction channels for dissipationless current transport. Transition metal tellurides XTe5X=Zr, Hf) are theoretically predicted to be large-gap two-dimensional topological insulators, and the experimental observations of their bulk insulating gap and in-gap edge states have been reported, but the topological nature of these edge states still remains to be further elucidated. Here, we report our low-temperature scanning tunneling microscopy/spectroscopy study on single crystals of HfTe5. We demonstrate a full energy gap of ~80 meV near the Fermi level on the surface monolayer of HfTe5 and that such an insulating energy gap gets filled with finite energy states when measured at the monolayer step edges. Remarkably, such states are absent at the edges of a narrow monolayer strip of one-unit-cell in width but persist at both step edges of a unit-cell wide monolayer groove. These experimental observations strongly indicate that the edge states of HfTe5 monolayers are not trivially caused by translational symmetry breaking, instead they are topological in nature protected by the 2 D nontrivial bulk properties.

关键词： properties. topological monolayer

辐射接枝法制备动态超疏水棉织物及其性能研究

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高分子学报 2017年第2期27卷 315-320页

作者：李景烨王自强虞鸣中国科学院上海应用物理研究所上海201800

以棉织物为基材,利用γ-射线辐射引发甲基丙烯酸十二烷基酯(LMA)接枝聚合,使聚苯乙烯(PS)纳米微球通过接枝链以共价键固定到棉织物上,从而在棉织物表面构筑低表面能的纳米尺度粗糙结构,获得低滚动角的动态超疏水棉织物.傅里叶变换红外光... 详细信息

以棉织物为基材,利用γ-射线辐射引发甲基丙烯酸十二烷基酯(LMA)接枝聚合,使聚苯乙烯(PS)纳米微球通过接枝链以共价键固定到棉织物上,从而在棉织物表面构筑低表面能的纳米尺度粗糙结构,获得低滚动角的动态超疏水棉织物.傅里叶变换红外光谱(FTIR)分析证明通过辐射接枝,在棉织物上存在PLMA接枝链和PS纳米微球.扫描电子显微镜(SEM)表征证明了PS纳米微球的固定使得棉织物表面呈现纳米尺度的粗糙结构.接触角测试结果证明所获棉织物具有超疏水性能,且相对于仅接枝LMA的改性棉织物,PS纳米微球的固定可以显著降低水滴的滚动角,实现动态超疏水的效果.通过抗弯刚度的测量表征了改性前后棉织物的柔软度,结果表明辐射接枝方法对棉织物的柔软度改变不大,不影响穿着性能.

关键词：动态超疏水辐射接枝棉织物滚动角