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Solvothermal synthesis of Co-substituted phosphomolybdate acid encapsulated in the UiO-66 framework for catalytic application in olefin epoxidation 被引量:4
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作者 Dianwen Hu xiaojing song +4 位作者 Shujie Wu Xiaotong Yang Hao Zhang Xinyu Chang Mingjun Jia 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2021年第2期356-366,共11页
Hybrid composites of phosphomolybdic acid@UiO-66(PMo12@UiO-66)and Co-substituted phosphomolybdic acid@UiO-66(PMo11Co@UiO-66)were synthesized using the direct solvothermal method.A variety of characterization results d... Hybrid composites of phosphomolybdic acid@UiO-66(PMo12@UiO-66)and Co-substituted phosphomolybdic acid@UiO-66(PMo11Co@UiO-66)were synthesized using the direct solvothermal method.A variety of characterization results demonstrated that phosphomolybdic acid(PMo12)or Co-substituted phosphomolybdate acid(PMo11Co)clusters are uniformly dispersed in the cages of Zr-based metal-organic UiO-66 frameworks.The catalytic properties of these hybrid composites were investigated by applying the epoxidation of olefins with tert-butyl hydroperoxide as the oxidant.Compared to PMo12@UiO-66,PMo11Co@UiO-66 showed a much higher catalytic activity and was simply recovered by filtration and reused for at least ten runs without significant loss of catalytic activity.Particularly,PMo11Co@UiO-66 can efficiently convert cyclic olefins like limonenes to epoxides,and its selectivity to 1,2-limonene oxide reached 91%in the presence of a radical inhibitor such as hydroquinone.The excellent catalytic activity and stability of the hybrid composite PMo11Co@UiO-66 are mainly attributed to the uniform distribution of highly active PMo11Co units within the smaller cages of UiO-66,to the suitable surface polarity of the hybrid composite for facilitating the access of reagents and solvent,and to the strong interface-interactions between the polyoxometalate and the UiO-66 framework. 展开更多
关键词 POLYOXOMETALATE Metal-organic frameworks OLEFINS EPOXIDATION Solvothermal synthesis
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肝脏去唾液酸糖蛋白受体靶向活体荧光成像评估酒精性肝损伤肝脏功能的研究
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作者 王淑友 宋晓晶 +2 位作者 贾术永 王广军 张维波 《中华消化病与影像杂志(电子版)》 2023年第6期443-446,共4页
目的运用肝脏去唾液酸糖蛋白受体(ASGPR)靶向活体荧光成像技术评估肝脏功能的可行性观察。方法应用小动物活体荧光成像系统分别观察正常和慢性酒精性肝损伤(cALI)小鼠尾静脉注射Cy5.5-半乳糖化多聚赖氨酸荧光探针即刻、40、60、90 min... 目的运用肝脏去唾液酸糖蛋白受体(ASGPR)靶向活体荧光成像技术评估肝脏功能的可行性观察。方法应用小动物活体荧光成像系统分别观察正常和慢性酒精性肝损伤(cALI)小鼠尾静脉注射Cy5.5-半乳糖化多聚赖氨酸荧光探针即刻、40、60、90 min的活体荧光成像特征,并结合小鼠肝脏ASGPR的含量、血清ALT、AST、GGT水平和肝组织HE染色切片观察,分析活体荧光肝脏靶向成像特征与肝脏ASGPR表达、肝脏血清学指标及肝组织形态学特征的相关性。结果正常组小鼠肝脏区域的荧光信号强度和面积均显著高于cALI组。与正常组小鼠比较,cALI小鼠肝组织ASGPR表达显著下降。血清学检测显示cALI小鼠ALT、AST和GGT水平升高,提示肝功能损伤。形态学观察显示cALI小鼠肝组织出现肝细胞脂肪变性、炎性浸润和局灶性坏死的病理改变。结论肝脏ASGPR靶向活体荧光成像可以直观、动态、活体显示肝细胞损伤程度,可用于cALI的肝脏储备功能的评估。 展开更多
关键词 活体荧光成像 肝脏去唾液酸糖蛋白受体 肝功能评估 小鼠
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Combination of Tripterygium Wilfordii Hook F With Antiretroviral Therapy Delayed Viral Rebound in A Patient of Acute HIV-1 Infection
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作者 Wei Cao Yizhi Cui +12 位作者 Huiling Weng Yongsong Yue Zhibiao Mai Yang Han Zhifeng Qiu xiaojing song Jing Xie Wei Lyu Gong Zhang Jianhua Wang Jean-Pierre Routy Tong Wang Taisheng Li 《Infectious Diseases & Immunity》 2021年第2期108-114,共7页
Prolonged antiretroviral therapy(ART)-free remission post-treatment has been observed and reported in human immunodeficiency virus-1(HIV-1)infection.The primary factors for such achievement have been linked to the tra... Prolonged antiretroviral therapy(ART)-free remission post-treatment has been observed and reported in human immunodeficiency virus-1(HIV-1)infection.The primary factors for such achievement have been linked to the transcriptional inactivation of HIV-1 DNA and immune recovery.Here,we reported a patient with acute HIV-1 infection who immediately received intensified quadruple ART.At month 9(M9),an old CFDA-approved immuno-suppressive herbal medicine,Tripterygium Wilfordii Hook F(TwHF),was used in addition to ART.The patient was closely monitored.Virological and immunological tests as well as transcriptome analysis were carried out at each visit.The results showed that TwHF reduced serum IP-10 level and inhibited T cell activation.Both ART and TwHF were discontinued in M24,and levels of peripheral blood HIV-1 RNA and DNA remained suppressed for consecutive 12months.With transcriptome analysis,we found pattern changes linking immuno-activation and amino acid metabolism with viral suppression and rebound.This indicates that the intentional suppression of immuno-activation is a promising approach for a functional cure of HIV-1 infection. 展开更多
关键词 TRANSCRIPTOME Immune activation Immune regulation Primary HIV-1 infection REMISSION Tripterygium Wilfordii Hook F
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