亚硝化-反硝化固定化细胞捷径生物脱氮的研究   总被引：1，自引：0，他引：1  

廖雪义  蓝荣 《襄樊学院学报》2008,29(8)

选用聚乙烯醇(PVA)和海藻酸钠(CA)作为载体,添加适量SiO2粉末,将筛选出来的高效亚硝化细菌和反硝化细菌分别制成固定化细胞,联合进行脱氮实验.结果表明:按1:1的比例,亚硝化细菌和反硝化细菌固定化细胞接种量为15%(W/V),在温度为30℃,摇床转数为110rpm的条件下处理合成废水(NH4+-N=150mg/L,碱度(NaHCO3=1700mg/L,pH=8.0),27h,脱氮率为97.53%;处理富营养化水体(NH4+-N=34.26mg/L,pH=6.7),20h,脱氮率达到79.51%.  相似文献   

Effects of RNA interference-induced tryptase down-regulation in P815 cells on IL-6 and TNF-α release of endothelial cells     

Yi-feng JIANG  Feng-di ZHAO  Xiao-bo LI  Yan-xia NING  Xiu-ling ZHI  Rui-zhe QIAN  Lian-hua YIN 《Journal of Zhejiang University. Science. B》2008,9(8)

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TGF-β1 treated murine dendritic cells are maturation resistant and down-regulate Toll-like receptor 4 expression     

牟海波  林茂芳  岑洪  俞静  孟筱坚 《浙江大学学报(A卷英文版)》2004,5(10):1239-1244

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参麦注射液对树突状细胞免疫活性的影响   总被引：2，自引：0，他引：2  

张在云  吴金民  潘宏铭  王林波 《科技通报》2003,19(3):241-243

目的 研究参麦注射液对树突状细胞(DC)免疫活性的影响，并初步探讨其作用机理．方法 从人外周血分离单核细胞，对照组用GM-CSF和IL-4诱导DC，参麦组另加参麦注射液，两组均自第5天起加TNFa促成熟，倒置显微镜观察细胞形态；收集培养10天的DC用流式细胞仪做表型检测；用MTT法检测DC诱导T细胞增殖的作用；用ELISA法测定DC上清中IL-12分泌量．结果 外周血单核细胞经细胞因子及参麦注射液干预诱导10天，表现出典型DC形态，对照组和参麦组DC形态无差异；两组DC的CDla、CD40、CD80等表面分子表达无显著差异；参麦组DC诱导T细胞增殖的能力增强；参麦组DC分泌IL-12的量高于对照组．结论 参麦注射液对DC表面分子的表达无明显影响，但可增加IL-12的表达，增强DC的免疫活性．  相似文献   

太阳能光电化学电池分解水制氢技术及其研究发展     

黄金昭  徐征 《临沂师范学院学报》2004,26(6):10-13

主要介绍了太阳能光电化学电池分解水制氢技术的基本原理以及发展历史和研宄现状，并在此基础上分析了影响该技术发展的一些因素，包括迭层电池的各结之间的能带匹配、催化电极的制备、电阻的减小以及电池的结构等一系列问题。  相似文献   

罗氏沼虾眼柄神经分泌细胞的超微结构   总被引：6，自引：0，他引：6  

姚泊 《中山大学学报论丛》1995,(3)

对产卵前罗氏沼虾眼柄的神经分泌细胞胞质，能观察到高尔基体和线粒体等细胞器结构，在高尔基体的生成面和成熟面均有许多高尔基小泡，核膜仅在部份区域有核周腔增宽现象，对产卵后罗氏沼虾眼柄的神经分泌细胞胞质，能观察到线粒体和许多大小不一的泡状结构，但没有观察到高尔基体，核膜都有明显的和不同程度的核周腔增宽现象．  相似文献   

纤维胶凝蛋白(ficolin)在非特异性免疫中的作用     

张家忠  章晓联 《襄樊职业技术学院学报》2006,5(5):8-9

纤维胶凝蛋白（ficolin）是一组存在于人的不同组织中含有胶原样结构域和纤维蛋白原样结构域曹磐蛋白。人血多中的Ficolin通过胶原样结构域与病原微生物表面的寡聚糖结合后，激活补体凝集素途径，并起调理作用，在非特异性免疫中起着重要作用。  相似文献   

三种免疫学方法对氢化可的松抑制效应的评价     

王钦富 《大连大学学报》1991,(3)

本文用溶血空斑试验玻片小室法和改良平皿法及溶血分光光度计测定法测定药用氢化可的松对小鼠 B 细胞功能的抑制效应。结果表明溶血分光光度计法最敏感、客观;溶血空斑试验改良平皿法较玻片小室法重复性好,标本可长期保存。是临床科研检测 B 细胞功能的可靠方法。  相似文献   

Effect of lead exposure on the immune function of lymphocytes and erythrocytes in preschool children     

赵正言  李荣  孙鹂  历志玉  杨茹莱 《Journal of Zhejiang University. Science. B》2004,(8)

INTRODUCTION Over the past few years, systematic studies onthe effect of lead exposure on the human body haveled to an understanding that lead is neurotoxic andhas adverse effect on the immune system. So far,however, research on the immunotoxic effects oflead has been limited to animal experiments andpeople with occupational exposure to lead (Shen etal., 1996; Mishra et al., 2003; Liu et al., 2000).Presently, there are no reports on the influence oflead exposure on lymphocyte and …  相似文献   

Review: Perspectives on the metallic interconnects for solid oxide fuel cells     

《Journal of Zhejiang University. Science. B》2004,(12)

The various stages and progress in the development of interconnect materials for solid oxide fuel cells (SOFCs) over the last two decades are reviewed. The criteria for the application of materials as interconnects are highlighted. Interconnects based on lanthanum chromite ceramics demonstrate many inherent drawbacks and therefore are only useful for SOFCs operating around 1000℃. The advance in the research of anode-supported flat SOFCs facilitates the replacement of ceramic interconnects with metallic ones due to their significantly lowered working temperature. Besides, interconnects made of metals or alloys offer many advantages as compared to their ceramic counterpart. The oxidation response and thermal expansion behaviors of various prospective metallic interconnects are examined and evaluated. The minimization of contact resistance to achieve desired and reliable stack performance during their projected lifetime still remains a highly challenging issue with metallic interconnects. Inexpensive coati  相似文献