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通过环氧氯丙烷活化(1,4)-2-氨基-2-脱氧β-D-葡萄糖(壳聚糖)制备免疫吸附剂,详细讨论了环氧氯丙烷活化过程的影响因素,确定了活化的最佳条件,活化(1,4)-2-氨基-2-脱氧β-D-葡萄糖树脂对单克隆抗体的偶联率为17.6%,对含乙肝炎表面抗原阳性血清均吸附实验表明,制备的免疫吸附剂剂能使阳性转为阴性,吸附率为44%。 相似文献
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本文在最佳条件下将猪C1q与活化的VT树脂反应制备了C1q-VT免疫吸附剂,每克干重VT可结合0.5mgC1q,可吸附1.4mg热凝聚人IgG(AHG)。SDS-PAGE结果表明C1q-VT免疫吸附剂只对AHG特异吸附,而不吸附其它血清蛋白。应用C1q-VT免疫吸附剂吸附SLE病人血浆中循环免疫复合物(CIC),结果表明约有52%的CIC被清除。C1q-VT免疫吸附剂只能一次性地使用. 相似文献
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本文在最佳条件下将猪Clq与活化的VT树脂反应制备了Clq-VT免疫吸附剂,每克干重VT可结合0.5mgClq,可吸附1.4mg热凝聚人IgG(AHG)。SDS—PAGE结果表明Clq-VT免疫吸附剂只对AHG特鼻吸附,而不吸附其它血清蛋白。应用Clq-VT免疫吸附剂吸附SLE病人血浆中循环免疫复合物(CIC),结果表明约有52%的CIC被清除。Clq-VT免疫吸附剂只能一次性地使用。 相似文献
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免疫吸附剂的研究及在血液净化中的应用 总被引:1,自引:0,他引:1
本文详细讨论了常用的免疫吸附剂载体材料的性质及使用情况,总结了免疫活性物质的常用固载方法以及在血液净化领域治疗各种疾病的情况。 相似文献
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吸附型“人工肝”辅助材料的制备及其性能研究:Ⅱ.免疫吸附剂的制?… 总被引:1,自引:0,他引:1
本文介绍以醋酸乙烯酯为单体,二乙烯苯为交联剂制得大孔共聚物,经皂化,活化后,偶联IgG制得免疫吸附剂、讨论了不同活化剂对偶联配体的影响,观察其对人血清中的HBsAg的吸附性能。 相似文献
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在碱性条件下,用环氧氯丙烷对琼脂糖载体进行活化,并通过戊二醛法引入手臂,偶联羊抗人IgA的抗体,清除IgA肾病病人体内高含量的IgA分子。从而达到治疗病症的目的.通过体外实验发现,新研制的免疫吸附剂最高吸附率可以达到70%左右. 相似文献
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WeiRongYAN YaoTingYU NanDONG 《中国化学快报》2003,14(7):693-696
Myasthenia Gravis (MG) is an organ specific autoimmune disease mediated by autoantibodies (AChR Ab) against the acetylcholine receptor (AChR). Literature reported that the AChR Ab can be removed by absorbent linked with tryotophan.It was studied in detail in our lab. With the aid of computer, we docked some ligandsinto AChR Ab, and the results fromscores of docking under different generations showed that therewas no specific binding between tryptophan and scFv fragment just as the binding between antigen-antibody. The interaction between Trp and immunoglobulin was a broad-spectntm binding. 相似文献
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球形纤维素固定化DNA制备免疫吸附剂 总被引:15,自引:0,他引:15
以球形纤维素为载体,经环氧氯丙烷活化后共价键联小牛胸腺DNA,制备DNA免疫吸附剂,通过血液灌流能够治疗系统性红斑狼疮.对病人血清的吸附实验结果表明,每毫升吸附剂与3mL病人血清混合,于37℃保温1 h,可吸附除去40%~70%致病抗体 相似文献
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用热重法(TG)、差热分析(DTA)和红外光谱(IR)方法测试了丝氨酸的热分解过程,用量子化学方法在RHF/6-21G水平上全优化计算了丝氨酸及其热分解中间产物、产物分子的几何构型,得到其总能量和Mulliken集居数等数据.从理论上证明了环氧中间产物的存在.通过对实验结果和计算结果如Mulliken集居数的分析,提出了丝氨酸的热分解反应机理是先失去CO2为主要反应通道,同时伴有先失去NH3而生成环氧中间产物的副反应发生. 相似文献
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IntroductionAproposedcycleinvolvingtheFOradicalsisl:ThecontributionofthiscycletothecatalyticdestrUctionofozoneisdeterndnedbythefirststep.Thereaction(l)isalsothoughttobeapossiblesinkforatInosphericCO2.Baueretal.3gavearateconstantofl.24.lO-i3cm3/sforreaction(l),whichwasbelievedtobecorrectwithinafactorof2at9(X)-l4(X)K.Theactivationenergywasestimatedtobe46.OkJ/mol.Bedzhanyanetal.4reportedk<4xlO-"and<5xlO-l6cm3/sat3ooand55OK,respectively.Alowerbarrierofl3.8kJ/molcanbeextrapoIated.Francisco… 相似文献
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Jia Chang LIANG * Zhi LIU Yi Min SHEN Xian Ping SUN Xi Zi ZENG Xiao Yun LE Xiang Yun WANG De Min WANG Fu Chun YU Yong Ti CHEN College of sciences Civil Aviation Institute of China Tianjin Department of Chemistry Nankai 《中国化学快报》2001,(9)
In this paper all NaCl crystal samples containing metallic sodium colloids used in experiments were cleaved to ~1mm thickness from a block of NaCl single crystal at room temperature1,2. Two parallel large surfaces of each crystal were polished. Then these NaCl crystal specimens were implanted at 10-6 Torr with xenon ions using an accelerating voltage of 36 keV. The xenon ion fluences were in the range from 1(1015/cm2 to 7(1017/cm2. The chemical shifts of 23Na in these NaCl crystal specime… 相似文献
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HuoYuRAO ZhangGaoLE 《中国化学快报》2004,15(2):246-249
The possible stable stractures of substituted fullerene C26BN formed on the initial C28 cage with Td symmetry have been systematically studied on UHF/3-21g level with constrained syrnmetry(Cs or C1, the charge and multiplicity of all the isomers are zero and five, respectively.The geometry optimization and the vibrational frequencies analysis were performed on the same level with constrained symmetry(Cs or C1. The results show that the most stable isomer of C26BN is formed by boron and nitrogen atoms doping at 5,2-sites. 相似文献
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Topological properties of charge distribution for the title complexes and their constituent are analyzed by using ab initio calculations at 3-21G basis set. The results obtained are compared with those originated from ab initio and energy decomposition method. It has been determined that the title molecular complexes are T-shaped. The characteristics of the bonds and the changes originated from the formation of the complexes are discussed. 相似文献