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Adsorption and Visible Light Photocatalytic Degradation of Electrospun PAN@W_(18)O_(49) Nanofibers

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Chemical Research in Chinese Universities 2021年第3期37卷 428-435页

作者： MA Yuying HE Dayong liu Jiadi wang Yuannan YANG Mei wang Hao QIU Ju LI Wenyan LI yongxin wang Ce Alan G.MacDiarmid Institute College of ChemistryJilin UniversityChangchun130012P.R.China College of Plant Science Jilin UniversityChangchun130062P.R.China College of New Energy and Environment Jilin UniversityChangchun130021P.R.China

Low density and high porosity polyacrylonitrile(PAN)nanofibers prepared by electrospinning were used as brackets for photocatalyst W_(18)O_(49) to prepare a kind of light weight and easy recycling water purification material for the first *** influence of tungsten source concentration on the formation of W_(18)O_(49) during a solvothermal process was systematically *** prepared PAN@W_(18)O_(49) nanofibers(NFs)utilize the outstanding visible light photocatalytic performance and the adsorption performance of W_(18)O_(49),and at the same time give the advantages of low density and easy *** pollutant removal performance of the composite nanofibers was investigated by using five contaminants including rhodamine B(RhB),methylene blue(MB),malachite green(MG),methyl orange(MO)and chlortetracycline(CTC)as *** them,the degradation process of rhodamine B has been studied in *** five cycles,the degradation efficiency did not decrease significantly,showing excellent reusability of PAN@W_(18)O_(49) ***,the adsorption performance of PAN@W_(18)O_(49) NFs during the photocatalytic process was also studied in *** with recently reported literature,the degradation efficiency of organic pollutants by PAN@W_(18)O_(49) NFs showed better performance,and PAN@W_(18)O_(49) NFs felt had a promising prospect in the field of degradation of contaminants.

关键词： Photocatalysis Adsorption Electrospinning Solvothermal reaction Dye degradation

基于CNKI的武警官兵心理健康研究CiteSpace可视化分析

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职业与健康 2024年第6期40卷 832-837页

作者：王开陈伏生高萍王理祥李海洋刘华磊武警后勤学院研究生大队天津300309 武警后勤学院部队健康教育教研室天津300309 武警新疆总队阿勒泰支队卫生队新疆阿勒泰836500

目的了解武警官兵心理健康研究的现状、热点和发展趋势,为今后武警官兵的心理健康研究和相关工作提供参考。方法以“武警”且“心理”为主题,采用CiteSpace可视化分析软件对中国知网公开发表的383篇期刊论文和103篇学位论文进行文献计... 详细信息

目的了解武警官兵心理健康研究的现状、热点和发展趋势,为今后武警官兵的心理健康研究和相关工作提供参考。方法以“武警”且“心理”为主题,采用CiteSpace可视化分析软件对中国知网公开发表的383篇期刊论文和103篇学位论文进行文献计量分析,检索的出版年度为1915—2022年,最终检索时间为2022年11月10日。结果相关研究起步于1993年,发文量缓慢增长,2006—2014年发文量显著上升,后逐渐减少。刊出期刊以军队期刊为主,学位授予单位以地方高校为主;机构与作者呈现一定的连接但合作较少。研究热点包括应对方式、新兵、社会支持、人格、心理干预、对策、影响因素、抑郁、心理弹性、心理应激、工作倦怠、睡眠质量等,近年的暴发性热点是心理弹性、心理资本和卫勤保障。结论近年来武警官兵心理健康研究逐渐减少,研究缺少合作。未来,武警官兵心理健康研究需贴近部队实际,聚焦备战打仗;结合信息技术,加强交流合作;探索其他研究热点,实现高质量、可持续发展。

关键词：心理健康武警官兵可视化分析文献计量学 CiteSpace

Photophysical properties of the Corrole photosensitizers

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Science China(Physics,Mechanics & Astronomy) 2010年第8期53卷 1491-1496页

作者： YOU LiLi SHEN Han SHI Lei ZHANG GuoLiang liu haiyang wang Hui JI LiangNian State Key Laboratory of Optoelectronics Materials and Technologies Sun-Yat Sen UniversityGuangzhou 510275China Department of Chemistry South China University of TechnologyGuangzhou 510641China School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry Sun-Yat Sen UniversityGuangzhou 510275China

The photophysical properties of a series of hydroxyl Corroles, Corrole-F, Corrole-Cl, Corrole-Br, Corrole-I and Corrole-2I, have been investigated by steady-state and time-resolved transient spectroscopy. The absorption spectra show a strong peak around 420 nm corresponding to B band and several weak Q absorption bands between 450 nm and 650 nm, exhibiting much stronger Q band absorption than that of porphyrin. The absorptions of these Corroles increase with the atom weight and the number of halogen atoms. All samples show similar fluorescence characteristics of an emission peak at 650 nm. The fluorescence intensities significantly decrease with the atom weight and the number of halogen atoms. The fluorescence quantum yield of Corrole-I is 0.947%, which is larger than that of Corrole-2I (0.381%). The fluorescence dynamics of the hydroxyl Corroles shows that both the fluorescence lifetime and the intersystem-crossing transition time of these Corroles decrease sharply with the increase of the atom weight and the number of halogen atoms, which may lead to the increase of the triplet state quantum yield. The heavy-atom effect on active oxygen of PDT has also been discussed by the end of this paper.

关键词： Corrole photophysical property heavy-atom effect PDT

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透明聚丙烯的结构及结晶行为

塑料工业 2024年第7期52卷 126-130页

作者：丁其维韩晓倩李海艳袁文博王倩刘永欣赵治明山东京博聚烯烃新材料有限公司山东滨州256500 山东京博石油化工有限公司山东滨州256500

采用凝胶渗透色谱仪(GPC)、核磁共振波谱仪(NMR)、X射线衍射仪(XRD)、偏光显微镜(PLM)和差示扫描量热仪(DSC)等分析手段,研究了京博聚烯烃公司生产的透明聚丙烯产品RP340R及市场上进口的同类产品RP344RK的结构、结晶形态和结晶行为。结... 详细信息

采用凝胶渗透色谱仪(GPC)、核磁共振波谱仪(NMR)、X射线衍射仪(XRD)、偏光显微镜(PLM)和差示扫描量热仪(DSC)等分析手段,研究了京博聚烯烃公司生产的透明聚丙烯产品RP340R及市场上进口的同类产品RP344RK的结构、结晶形态和结晶行为。结果表明,RP340R和RP344RK的序列结构接近,均为共聚单体为少量乙烯的无规共聚聚丙烯;晶型均为α晶型,球晶尺寸细化程度明显;随着冷却速率的升高,起始结晶温度、峰值结晶温度均降低,而结晶速率加快。与RP340R相比,RP344RK的相对分子质量分布较宽,非等温冷结晶活化能较小。

关键词：透明聚丙烯结构结晶形态结晶行为

SS304和Q235异种钢搅拌摩擦焊接头腐蚀有限元模拟

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焊接 2024年第5期 44-50,62页

作者：王洪铎常素腾路永新刘彦明西安石油大学西安710065

针对异种金属焊接接头易于发生电偶腐蚀,基于腐蚀电化学原理,将动电位极化曲线参数和金相组织面积比例等作为边界条件,采用有限元分析软件COMSOL对Q235低碳钢和304不锈钢(SS304)异种钢FSW接头不同区域腐蚀行为进行了预测,研究了焊接接... 详细信息

针对异种金属焊接接头易于发生电偶腐蚀,基于腐蚀电化学原理,将动电位极化曲线参数和金相组织面积比例等作为边界条件,采用有限元分析软件COMSOL对Q235低碳钢和304不锈钢(SS304)异种钢FSW接头不同区域腐蚀行为进行了预测,研究了焊接接头不同区域宏观和微观电偶腐蚀电位分布和电流密度的变化规律。结果表明,在宏观电偶腐蚀中,腐蚀深度的最大值位于SS304后退侧(RS_(304))与搅拌区(SZ)的交界处,约为Q235低碳钢母材(BM_(Q235))的5倍,各区电流密度随腐蚀时间的增长而增大,在微观电偶腐蚀中,腐蚀深度的最大值位于SS304侧搅拌区(SZ_(304))与Q235侧搅拌区(SZ_(Q235))的交界处,约为BM_(Q235)的1.2倍,并且珠光体组织面积比例越大,耐蚀性越差。采用该有限元模型可以预测异种钢搅拌摩擦焊接头不同区域的腐蚀行为。

关键词： 304不锈钢 Q235低碳钢搅拌摩擦焊接头有限元模拟

Exosomal miR-155 from gastric cancer induces cancerassociated cachexia by suppressing adipogenesis and promoting brown adipose differentiation via C/EPBβ

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Cancer Biology & Medicine 2022年第9期19卷 1301-1314页

作者： Ying liu Meng wang Ting Deng Rui liu Tao Ning Ming Bai Guoguang Ying haiyang Zhang Yi Ba Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for CancerTianjin’s Clinical Research Center for CancerKey Laboratory of Cancer Prevention and TherapyTianjin 300060China

Objective:The aim of this research was to identify whether exosomes were involved in impairing adipogenesis in cancer-associated cachexia(CAC)by detecting the adipodifferentiation capacity and the expressions of adipogenic proteins in gastric cancer(GC)-associated ***:Western blotting and RT-PCR were used to investigate the expressions of C/EPBβ,C/EPBα,PPARγ,and UCP1 in adipose mesenchymal stem cells(A-MSCs)to evaluate the function of exosomal ***/c nude mice were intravenously injected in vivo with GC exosomes with different levels of miR-155 to determine changes in adipodifferentiation of ***:Exosomes derived from GC cells suppressed adipogenesis in A-MSCs as characterized by decreased lipid ***,A-MSCs co-cultured with GC exosomes exhibited increased ATP production through brown adipose differentiation characterized by highly dense mitochondria and enhanced UCP1 expression(P<0.05).Mechanistically,exosomal miR-155 secreted from GC cells suppressed adipogenesis and promoted brown adipose differentiation by targeting C/EPBβ,accompanied by downregulated C/EPBαand PPARγand upregulated UCP1(P<0.05).Moreover,overexpression of miR-155 in GC exosomes improved CAC in vivo,which was characterized by fat loss,suppressed expressions of C/EPBβ,C/EPBα,and PPARγin A-MSCs,and high expression of UCP1(P<0.05).Decreasing the level of miR-155 in injected GC exosomes abrogated the improved CAC ***:GC exosomal miR-155 suppressed adipogenesis and enhanced brown adipose differentiation in A-MSCs by targeting C/EPBβof A-MSCs,which played a crucial role in CAC.

关键词： Exosomes adipose mesenchymal stem cells miR-155 cachexia gastric cancer

咪达唑仑口服溶液用于幼儿超声心动图检查镇静的可行性和效果

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医药导报 2024年第8期43卷 1286-1290页

作者：李肖璇史建稳王晓旭王蓉周伟伟刘飞梁永新范文杰青岛大学附属妇女儿童医院麻醉中心青岛266034 青岛大学附属妇女儿童医院药学部青岛266034

目的评价咪达唑仑口服溶液用于幼儿超声心动图检查镇静的可行性和有效性。方法选择在镇静下行超声心动图检查的患儿240例,年龄1~3岁,记录相关基线数据,计算机模拟产生随机数字表法将患儿分为0.3 mg·kg^(-1)咪达唑仑口服溶液组(M_(1)组)... 详细信息

目的评价咪达唑仑口服溶液用于幼儿超声心动图检查镇静的可行性和有效性。方法选择在镇静下行超声心动图检查的患儿240例,年龄1~3岁,记录相关基线数据,计算机模拟产生随机数字表法将患儿分为0.3 mg·kg^(-1)咪达唑仑口服溶液组(M_(1)组)、0.5 mg·kg^(-1)咪达唑仑口服溶液组(M_(2)组)、0.7 mg·kg^(-1)咪达唑仑口服溶液组(M_(3)组)、0.5 mL·kg^(-1)10%水合氯醛灌肠组(C组),每组各60例,以各组相应的方法进行镇静。5分面部特征量表评价镇静依从性,Ramsay镇静量表评估镇静效果,记录镇静起效时间、持续时间。结果各组患儿镇静时5分面部特征量表评分差异有统计学意义(F=17.50,P<0.017),M_(1)、M_(2)和M_(3)组评分明显高于C组;M_(1)和M_(2)组镇静起效时间长于C组(P<0.017),镇静持续时间短于C组(P<0.017);M_(3)组与C组镇静起效时间(P=0.85)、持续时间(P=0.50)差异无统计学意义;M_(1)和M_(2)组镇静起效时间明显长于M_(3)组(P<0.017),而镇静持续时间明显短于M_(3)组(P<0.017),差异有统计学意义。结论幼儿在心脏超声镇静下检查应用咪达唑仑口服溶液的依从性优于10%水合氯醛灌肠且不良反应少,其中0.7 mg·kg^(-1)剂量咪达唑仑口服溶液镇静起效快,效果确切。

关键词：咪达唑仑口服溶液水合氯醛幼儿镇静超声心动图

Tumor necrosis factor-alpha(TNF-α) in spotted halibut Verasper variegatus at the embryonic and metamorphic stages

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Journal of Oceanology and Limnology 2020年第2期38卷 454-466页

作者： LI Zan liu Xiumei DU Xinxin ZHANG Kai CHEN Yan wang Xubo wang Zhigang YU haiyang ZHANG Quanqi School of Agriculture Ludong UniversityYantai 264025China College of Life Sciences Yantai UniversityYantai 264005China Key Laboratory of Marine Genetics and Breeding Ministry of EducationCollege of Marine Life ScienceOcean University of ChinaQingdao 266003China

As an aquatic fish,the spotted halibut Verasper variegatus is highly susceptible to bacterial and virus *** necrosis factor-alpha(TNF-α)as a cytokine could control the inflammatory *** functions of TNF-αin many species have been widely studied,particularly in ***,little is known about the TNF-αfunctions in *** first cloned and sequenced the TNF-αgene in ***(VvTNF-α).The two conserved cysteine residues,transmembrane sequence,Thr-Leu motif,and TNF family signature,as well as the TA-rich motifs of its proteins related to inflammatory responses had high similarity to those of the other teleost and mammalian TNF-α.The phylogenetic analysis showed that VvTNF-αwas consistent with TNF-αgenes of other *** VvTNF-αtranscripts were extensively distributed in the peripheral blood leukocytes(PBLs),spleen,and gill,indicating that the VvTNF-αhad a role in immune ***,treatment with pathogen-associated molecular patterns(PAMPs)could induce a rapid and significant increase of VvTNF-αin the PBLs,which reveals that VvTNF-αdoes participate in the host immune responses against bacterial and viral *** found that VvTNF-αhad an interesting expression pattern during metamorphosis,showing that the flatfish TNF-αmay have some novel functions during specific developmental *** addition,the 3 D structure prediction of VvTNF-αprovided an indication of how it is likely to interact with other ***,VvTNF-αhas multiple functions,and provides valuable information to explore novel functions of TNF-α.

关键词： tumor necrosis factor-alpha(TNF-α) Verasper variegatus metamorphosis peripheral blood leukocytes(PBLs) 3D modeling pathogen-associated molecular patterns(PAMPs)

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女性雄激素性脱发代谢相关蛋白质组学研究

中华整形外科杂志 2024年第1期40卷 46-55页

作者：王季安林尽染李海洋杨凯倪春雅张悦李政朱逸飞刘庆梅吴文育复旦大学附属华山医院皮肤科上海市皮肤病研究所上海200040 上海市静安区中心医院皮肤科上海200040 复旦大学工程与应用技术研究院上海200433

目的研究女性雄激素性脱发(FAGA)患者血浆中代谢相关蛋白及其价值。方法 2021年3月至2023年3月从复旦大学附属华山医院皮肤科门诊招募年龄18~50岁的FAGA患者(FAGA组)及健康对照女性(HC组)。采集每位受试者的外周静脉血3 ml, 离心获得血... 详细信息

目的研究女性雄激素性脱发(FAGA)患者血浆中代谢相关蛋白及其价值。方法 2021年3月至2023年3月从复旦大学附属华山医院皮肤科门诊招募年龄18~50岁的FAGA患者(FAGA组)及健康对照女性(HC组)。采集每位受试者的外周静脉血3 ml, 离心获得血浆。对血浆行Olink蛋白质组学分析, 通过R语言筛选2组间的差异表达蛋白, 并以受试者工作特征(ROC)曲线评估差异蛋白的诊断性能;对差异表达蛋白行基因本体论(GO)分析。取FAGA组顶区、HC组枕区毛囊行免疫荧光分析, 对筛选的差异表达蛋白进行验证。应用SPSS 25.0软件对数据进行分析, 正态分布计量资料以±s表示, 2组受试者基本资料比较、毛囊中差异蛋白相对荧光强度比较采用t检验;对血浆中代谢相关蛋白与受试者基本资料行Pearson相关分析。P0.05)。与HC组相比, FAGA组血浆中有26种差异蛋白表达显著上调(P<0.05), 其中AHCY、NECTIN2差异最为显著(P均=0.003), ROC曲线评估显示AHCY和NECTIN2的曲线下面积均大于0.7, 表现出良好的诊断准确性。GO分析显示, 差异蛋白主要富集在BAT3复合物(细胞组分), 泛素依赖性ERAD途径、自然杀伤细胞活化(生物学过程), 以及泛素蛋白连接酶结合、泛素特异性蛋白酶结合(分子功能)等方面。Pearson相关分析显示, AHCY(r=-0.23, P=0.010)、NECTIN2(r=-0.31, P=0.033)均与FAGA患者的脱发严重程度呈负相关。毛囊免疫荧光分析结果显示, FAGA组中AHCY、NECTIN2相对荧光强度高于HC组(P<0.05), 即AHCY、NECTIN2均在FAGA组中表达上调。结论代谢相关蛋白在FAGA中起着重要作用, AHCY及NECTIN2有可能作为FAGA的早期诊断生物标志物。

关键词：脱发女性雄激素性脱发蛋白质组学诊断