Reactivity Ratio of Methyl Acrylate with Methacrylates For Group TransFer Copolymerization

丙烯酸甲酯和甲基丙烯酸酯基团转移无规共聚的竞聚率⒇邹友思林东海张景辉潘容华（厦门大学化工系，厦门大学核磁共振实验室，厦门，361005）单体竞聚率作为一个定量数据，对于不同投料比下共聚物组成的预计和控制，共聚反应动力学和机理研究均有重要作用。丙烯酸...Statistical group transFer copolymerization of methyl acrylate(MA) with methacrylates have been perFormed For three binary systems. The copolymer compositions were determined by 1H NMR spectroscopy and the results were evaluated by the extented Kelen Tudos method. The monomer pairs concerned are (1) methyl acrylate (MA) and ethyl methacrylate(EMA), (2) MA and butyl methacrylate(BMA), (3) MA and i butyl methacrylate(iBMA). The reactivity ratios were Found to be γ MA =14.41, γ EMA = 0.01 ; γ MA =13.96, γ BMA =0.23; γ MA =8.66, γ iBMA =0.08. It was Found that acrylate is much more reactive than methacrylate For GTP and anionic copolymerization.国家自然科学基

丙烯酸酯和甲基丙烯酸酯基团转移共聚研究

研究了三种丙烯酸酯分别和四种甲基丙烯酸酯的基团转移共聚，用１ＨＮＭＲ法测定共聚物组成，扩展的ＫｅｌｅｎＴｕｄｏｓ法测定竞聚率，结果为γＭＡ＝９２３、γＭＭＡ＝００６；γＥＡ＝１４１５、γＭＭＡ＝００１；γＢＡ＝７５１、γＭＭＡ＝００２；γＭＡ＝１４４１、γＥＭＡ＝００１；γＭＡ＝１３９６、γＢＭＡ＝０２３；γＭＡ＝８６６、γｉＢＭＡ＝００８，表明基团转移聚合同阴离子聚合有明显的相似之处

Regulation effect of exogenous nitric oxide on anti-oxidation system of Kandelia candel seedlings treated with NaCl

研究了外源一氧化氮(NO)供体硝普钠(SNP)对NaCl处理下红树植物秋茄(Kan-deliacandel)幼苗叶片中抗氧化酶活性、抗氧化物质及脯氨酸含量的影响。结果表明:NaCl处理下,秋茄幼苗叶片中超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)和抗坏血酸过氧化物酶(APX)等4种活性氧清除酶的活性均受到明显抑制(P<0.05),SNP可以不同程度地恢复SOD、POD、CAT的活性,但对APX活性影响不大;SNP提高谷胱甘肽(GSH)及类胡萝卜素(Car)的含量,促进脯氨酸含量的上升,显著降低叶片中过氧化氢(H2O2)和丙二醛(MDA)的累积。表明外源NO可以缓解NaCl处理诱导的秋茄幼苗叶片氧化损伤,降低膜脂过氧化水平,有利于秋茄适应盐生环境。By using sodium nitroprusside(SNP)as the donor of exogenous nitric oxide,this paper studied its effects on the antioxidant enzyme activities,anti-oxidation substances,and proline content in the leaves of Kandelia candel seedlings treated with NaCl.The results showed that after treated with NaCl,the activities of superoxide dismutase(SOD),peroxidase(POD),catalase(CAT)and ascorbate peroxidase(APX)in K.candel seedling leaves were depressed significantly(P<0.05),while SNP could recover the activities of SOD,POD and CAT to different degrees but showed little effect on APX.SNP increased the contents of glutathione(GSH)and carotenoid(Car),promoted the production of proline,and decreased the accumulation of H2O2 and malondialdehyde(MDA)significantly.It was indicated that SNP could relieve the oxidation damages induced by NaCl via decreasing the level of membrane lipid peroxidation in K.candel leaves,and facilitate K.candel to adapt to saline environment.国家自然科学基金项目(30670317和39970438);; 厦门大学新世纪优秀人才支持计划项目(0000-X07115)资

Preparation and application of monoclonal antibodies against Herpes simplex virus-1

目的:制备并筛选HSV-1单抗,建立定量检测HSV-1病毒颗粒抗原的双抗体夹心ElISA方法,用于HSV-1病毒颗粒的质控。方法:以HSV-1免疫bAlb/C小鼠制备单克隆抗体,以筛选的中和单克隆抗体1f6为捕捉抗体,HrP标记的2b1为检测抗体,构建定量检测HSV-1病毒颗粒抗原的双抗体夹心ElISA方法,并对本方法的特异性、灵敏度、精密度、准确性和线性等性能进行验证。用本方法定量检测的病毒量与病毒滴度作回归分析。结果:构建的双抗体夹心定量检测HSV-1病毒颗粒抗原的ElISA方法,线性范围为0.125~2μg/Ml,相关系数为r2=0.995 5,定量限度为0.125μg/Ml,试剂的变异系数CV<10%,抗原回收率介于85.6%~107.1%之间。与HSV-1以外的其他样本无交叉反应。本方法检测与病毒感染滴度具有很好的相关性。结论:成功构建了定量检测HSV-1含量的ElISA方法,为HSV-1病毒颗粒抗原定量检测提供快速手段。Objective: To prepare and screen monoclonal antibodies against Herpes simplex virus-1( HSV-1),and develop a double antibody sandwich quantitative enzyme-linked immunosorbent assay( Q-ELISA) for detection of HSV-1 particle.This method was used to control the quality of viral particle in the developing and manufacturing process of HSV-1.Methods: BALB / c mice was immunized with HSV-1 to prepare monoclonal antibodies.A double antibody sandwich Q-ELISA was developed to determine concentration of HSV-1 particle,which was based on the neutralizing monoclonal antibody 1F6 as capture antibody,and 2B1 as HRP-conjugated antibody.The performance of the reagent was evaluated,including specificity,sensitivity,precision,accuracy and linear.And the relation between the amount of virus detected by this method and the virus titer was analyzed by regression analysis method.Results: The QELISA for HSV-1 particle was developed.The quantitation scope was 0.125- 2 μg / ml,the coefficient correlation was 0.995 5,the limit of detection was 0.125 μg / ml,the recovery was between 85.6% and 107.1%,the variation coefficient was lower than 10%,and the reagent does not react with other samples except HSV-1 antigen.This method has a good correlation with virus titer.Conclusion: The QELISA for HSV-1 particle was successfully developed,which provide a new approach for rapid and quantitative detection of HSV-1 antigen

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FCC反应过程的CFD模拟进展

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