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双水相萃取分离免疫球蛋白和单克隆抗体研究
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摘要
抗体广泛用于疾病治疗、医疗诊断和免疫分离,具有广阔的市场需求和发展前景。抗体主要从动物血液、腹水和细胞培养液中分离得到,尤其是动物细胞培养制备单克隆抗体,已实现规模化生产。然而,目前抗体分离过程的成本仍旧较高,成为抗体产业发展的一个瓶颈,开发经济高效的抗体分离新方法,具有重要意义。双水相萃取具有生物相容性好、分离条件温和、成本相对较低、易于放大等优点,本文针对含人血清白蛋白(HSA)料液中分离免疫球蛋白G (IgG)和细胞培养液中分离单克隆抗体两类典型的抗体分离过程,探讨双水相萃取分离抗体的可行性。主要内容如下:
     (1)从含有HSA的混合蛋白中双水相萃取分离IgG。比较分析了不同类型双水相系统中IgG的分配情况,选择聚乙二醇(PEG)/羟丙基淀粉(HPS)为合适的双水相系统。考察了PEG浓度、HPS浓度、NaCl浓度和pH对IgG和HSA在PEG/HPS系统中分配的影响,以IgG上相收率(Ytop)和纯化因子(PF)为响应值,利用响应面法评价了四个因素的显著性,并优化了萃取条件,确定最佳分离条件是12%PEG、18%HPS、10%NaCl和pH8.0, Ytop为99.2%,PF为5.28。进一步考察了PEG/磷酸盐双水相系统反萃取IgG,确定反萃取最适条件为磷酸盐(pH7)浓度10%,第一步萃取的上相量与磷酸盐母液(40%,w/w)的质量比为1.6:1。经萃取和反萃取两步分离,IgG收率为84.0%,纯化因子为5.73,实现了从含HSA料液中高效分离IgG。
     (2)探讨了NaCl对IgG在双水相系统中分配和溶解性影响的作用机制。首先考察了NaCl对kG分配的影响机制,发现添加NaCl造成PEG/HPS双水相系统相图的双节点曲线向偏离坐标原点方向移动,两相间的疏水差异性增大;利用荧光法测定了NaCl对IgG疏水性的影响,发现随着NaCl浓度增大,IgG分子疏水性增大,这正是IgG选择性分配至上相的主要原因。其次考察了添加NaCl对IgG溶解性的影响,发现添加NaCl加剧了IgG在(NH4)2SO4溶液中沉淀析出,却增大了IgG在PEG溶液中的溶解性,解释了PEG/(NH4)2SO4和PEG/HPS双水相系统中IgG收率的差异。进一步采用等温滴定量热法分析了NaCl对IgG-PEG间相互作用的影响,发现随NaCl浓度增大,IgG-PEG间的相互作用方式发生了改变,高NaCl浓度下IgG-PEG间疏水相互作用增强,明确了添加NaCl增大IgG在PEG溶液中溶解性的内在原因,并提出了NaCl影响的可能机制。
     (3)采用两步双水相萃取法从中国仓鼠卵巢(CHO)细胞培养液中分离单克隆抗体MAB。考察了PEG/HPS双水相系统萃取分离MAB,优化了NaCl添加量、pH和料液添加量,确定了最佳条件为12%PEG、18%HPS、15%NaCl、pH6.0和6%CHO细胞培养液,MAB收率和纯度达96.7%和96.0%。采用PEG/磷酸盐双水相系统实现反萃取,得到合适的分离条件为系统中磷酸盐浓度为8%,第一步萃取的上相量与磷酸盐母液的质量比为2.5:1。经两步萃取,MAB收率和纯度分别为86.8±1.0%和97.6±0.5%。比较了双水相萃取和Protein A亲和层析,发现二者得到的MAB纯度相近,表明双水相萃取可作为Protein A亲和层析的潜在替代方法,用于从细胞培养液中高效分离单克隆抗体。
     (4)探讨了混合模式配基双水相系统分离抗体的可行性。首先实现了PEG分子与配基的高效偶联,制备了系列配基-PEG。采用环氧氯丙烷法活化PEG,环氧基接入量可达到460μmol·g-1PEG;再将活化PEG与配基偶联,配基接入率达到90%以上。考察了混合模式配基对IgG在双水相系统中分配的影响,包括疏水型配基(MMI-PEG)和荷电配基(MBA-PEG、AHNSA-PEG、MBIA-PEG和MBIS-PEG)。比较分析后发现巯基咪唑苯甲酸(MBIA)较合适,当pH5.0时,添加MBIA-PEG可使IgG富集于上相而大部分HSA分配在下相中。结果表明,混合模式配基双水相系统分离IgG具有一定可行性,相关系统研究还需进一步开展。
     综上所述,本文探讨了双水相萃取分离IgG和单克隆抗体,为了提高分离效率,采取了两个策略:(1)添加中性盐,在聚合物/聚合物双水相系统中添加NaCl,通过影响相平衡和抗体疏水特性,促进抗体从下相转移分配入上相;(2)引入混合模式配基,PEG分子与功能配基偶联,通过配基与抗体发生相互作用,吸引抗体进入上相,实现与杂蛋白分离。本文证实了两种方法的有效性,并分析了相关机制,为抗体分离新方法的开发提供了新思路。
Antibodies have been widely used for the therapeutic drug, diagnostic reagent and immunoaffinity separation, which has a broad market demand and prospects. Antibodies are normally separated from animal blood, ascites and mammalian cell culture. The manufacturing of monoclonal antibody from mammalian cell culture has been applied in large-scale production. As we know, the high-cost downstream process for antibody production has become one bottleneck of antibody industry. It is of great importance to develop new techniques with low cost and high efficiency for antibody separation. As new bioseparation technology, aqueous two-phase extraction (ATPE) has some advantages such as good biocompatibility, mild condition, relative low cost, easy to scale-up and so on. In this thesis, the feasibility of antibody separation with ATPE was investigated, which aimed at two typical processes of the separation of immunoglobulin G (IgG) from human serum albumin (HSA) containing feedstock and the purification of monoclonal antibody from mammalian cell culture broth.
     Main contents are summerized as follows:
     (1) Aqueous two-phase system (ATPS) was studied for the extraction of IgG from HSA containing feedstock. The partition behaviors of IgG in different types of ATPSs were compared firstly, and polyethylene glycol (PEG)/hydroxypropyl starch (HPS) ATPS was chosen as the suitable system. The effects of the concentrations of PEG, HPS and NaCl and pH on the partition of IgG and HSA in PEG/HPS ATPS were investigated. With the yield of IgG in top phase (Ytop) and the purification factor (PF) as the objective parameters, the response surface methodology (RSM) was used to evaluate the effects of some key factors and the separation conditions were optimized. The optimal conditions were obtained as12%(w/w) PEG4000,18%(w/w) HPS and10%(w/w) NaCl at pH8.0, and Ytop was99.2%with PF of5.28. The back extraction of IgG with PEG/phosphate ATPS were studied, the optimal conditions were10%phosphate (pH7) and the mass ratio of top phase of the first extraction to phosphate stock solution (40%w/w) of1.6:1. After two steps of ATPE, the total yield of IgG was84.3%with PF of5.73. The results demonstrated that IgG could be efficiently separated from HSA containing feedstock with suitable ATPE process.
     (2) The mechanisms of NaCl effects on the partition and solubility of IgG in ATPS were investigated. It was found that the addition of NaCl could lead to a shift on the binodal curve of the phase diagram of PEG/HPS ATPS, which caused the increase on the differences of hydrophobicity of two phases. The effect of NaCl addition on the surface hydrophobicity of IgG molecule was determined using fluorescence method. The results indicated that the addition of NaCl could increase the hydrophobicity of IgG, which would be the main reason for the selective partition of IgG in top phase. In addition, the effects of NaCl addition on the solubility of IgG were investigated. It was found that the addition of NaCl could increase the precipitation of IgG in the presence of (NH4)2SO4while improve the solubility of IgG in the presence of PEG, which could explain the experimental phenomenon of the difference of IgG recovery in PEG/(NH4)2SO4and PEG/HPS ATPSs. Furthermore, the effect of NaCl on the interaction between IgG and PEG was inveatigated using isothermal titration calorimetry (ITC). It was found that the addition of NaCl might make a shift on the IgG-PEG interaction mode and the hydrophobic interaction of IgG-PEG would increase with high NaCl concentration. This would be the reason that the NaCl addition could improve the solubility of IgG in the presence of PEG, and the possible mechanism was proposed.
     (3) A two-step extration process with ATPSs were studied to purify monoclonal antibody MAB from chinese hamster ovary (CHO) cell culture supernatant. The effects of NaCl addition, pH and feedstock loading on the extraction of MAB with PEG/HPS ATPS were investigated. The optimal conditions were12%PEG,18%HPS,15%NaCl, pH6.0and6%feedstock loading, and the yield of MAB in top phase was96.7%with the purity of96.0%. PEG/phosphate ATPS was used for the back extractions of MAB, and the optimal conditions were8%phosphate (pH7.0) and the mass ratio of top phase to phosphate stock solution (40%w/w) of2.5:1. After two-step extraction, the purity of MAB could reach97.6±0.5%with the yield of86.8±1.0%. It was found that the purity of MAB obtained with ATPE was comparable to that of Protein A chromatography. The results indicated that the ATPE process could be used as the alternative technique for the purification of monoclonal antibody from cells culture broth.
     (4) The separation of antibody using ATPS with mixed-mode ligand was studied. Firstly, the ligand-PEG was prapared by coupling mixed-mode ligand onto PEG efficiently. PEG was activated by epichlorohydrin, and the epoxide content of activated PEG could reach460μmol·g-1PEG The PEG-expoxide was then coupled with mixed-mode ligands with above90%coupling rate. The effects of the ligand-PEG on the partition of IgG in ATPS were investigated, including the hydrophobic ligand (MMI-PEG) and the charged ligands (MBA-PEG, AHNSA-PEG, MBIA-PEG and MBIS-PEG). It was found that2-mercapto-5-Benzimidazole-carboxylic acid (MBIA) was a proper ligand for IgG separation. At pH5.0, the addition of MBIA-PEG could make IgG riched in top phase while most of HSA still partitioned in bottom phase. The results indicated that ATPE with MBIA-PEG could be used for the separation of IgG. However, more follow-up research should be done to improve the separation efficency.
     In this thesis, the separation of IgG and monoclonal antibody with ATPE was focused. In order to improve the separation efficiency, two strategies have been developed:(1) NaCl was added into PEG/HPS ATPS to tranfer antibody from bottom phase into top phase by influencing the phase equilibrium and the hydrophobic property of antibody;(2) The mixed-mode ligands were coupled with PEG to induce antibody into top phase to purify antibody from the impurity proteins by the specific interactions between ligand and antibody. The feasibility of two strategies was verified and the mechanism was analyzed, which provided some new ideas for the development of new techniques for antibody separation.
引文
[1]Hulse J. H. Biotechnologies:Past history, present state and future prospects[J]. Trends in Food Science& Technology,2004,15(1):3-18.
    [2]孙彦.生物分离工程(第二版)[M].北京:化学工业出版社,2005.
    [3]Roque A., Lowe C. R., Taipa M. A. Antibodies and genetically engineered related molecules:Production and purification[J]. Biotechnology Progress,2004,20(3):639-654.
    [4]Gottschalk U. Introduction:The renaissance of protein purification[J]. Biopharm International,2006, 19(6):8.
    [5]王韧.21世纪生物化工发展及对策[J].化工技术经济,2000,(04):1-4.
    [6]Platis D., Labrou N. E. Development of an aqueous two-phase partitioning system for fractionating therapeutic proteins from tobacco extract[J]. Journal of Chromatography A,2006,1128(1-2):114-124.
    [7]Guan Y., Lilley T. H., Treffry T. E., Zhou C. L., Wilkinson P. B. Use of aqueous two-phase systems in the purification of human interferon-al from recombinant Escherichia coli[J]. Enzyme and Microbial Technology,1996,19(6):446-455.
    [8]Hart R. A., Lest P. M., Reifsnyd D. H., Ogez J. R., Build S. E. Large-scale in-situ isolation of piplasmic igf-i from eschichia-coli[J]. Bio-Technology,1994,12 (11):1113-1117.
    [9]Wu X. T., Tang L. M., Du Y. M., Xu Z. N. Improving glutathione extraction from crude yeast extracts by optimizing aqueous two-phase system composition and operation conditions[J]. Korean Journal of Chemical Engineering,2010,27(6):1829-1835.
    [10]林东强,朱自强,姚善泾,梅乐和.生化分离过程的新探索—双水相分配与相关技术的集成化[J].化工学报,2000,(01):1-6.
    [11]Litman G. W., Rast J. P., Shamblott M. J., Haire R. N., Hulst M., Roess W., Litman R. T., Hindsfrey K. R., Zilch A., Amemiya C. T. Phylogenetic divsification of immunoglobulin genes and the antibody reptoire[J]. Molecular Biology and Evolution,1993,10(1):60-72.
    [12]杨严俊,高福成.免疫球蛋白资源的开发及其在食品应用中的最新进展[J].食品与发酵工业,1997,(02):66-69.
    [13]Woof J. M., Burton D. R. Human antibody-Fc receptor interactions illuminated by crystal structuresfJ]. Nature Reviews Immunology,2004,4(2):89-99.
    [14]Fleischman J. B., Press E. M., Port R. R. Arrangement of peptide chains in gamma-globulin[J]. Biochemical Journal,1963,88(2):220.
    [15]Cohen S., Port R. B. Structure and biological activity of immunoglobulins[J]. Advances in Immunology, 1964,27.
    [16]Gapper L. W., Copestake D., Otter D. E., lndyk H. E. Analysis of bovine immunoglobulin G in milk, colostrum and dietary supplements:a review[J]. Analytical and Bioanalytical Chemistry,2007,389(1): 93-109.
    [17]杜巧燕.集成化扩张床技术从甜乳滑中分离乳铁蛋白和免疫球蛋白G[D].杭州:浙江大学,2013.
    [18]Harris L.,J., Larson S. B., Hasel K. W., Mcpherson A. Refined structure of an intact IgG2a monoclonal antibody[J]. Biochemistry,1997,36(7):1581-1597.
    [19]侯越,罗奋华,吴应积.抗体分离纯化技术的研究进展[J].生物技术通报,2008,(03):60-62.
    [20]Duffy S. A., Moelling B. J., Prior C. R. Optimal large-scale purification strategies for the production of highly purified monoclonal-antibodies for clinical-application[J]. Abstracts of Papers of the American Chemical Society,1988,196:125.
    [21]Farid S. S. Process economics of industrial monoclonal antibody manufacture[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2007,848(1):8-18.
    [22]唐秋艳.王云龙,陈兴业.免疫诊断试剂实用技术[M].北京:海洋出版社,2009.
    [23]谷威,潘峰.周飞.体外诊断试剂行业发展概述[J].中国药物评价,2012,(01):98-101.
    [24]初铭宇.坚守体外诊断度剂陈地[J].今日科苑,2010,(19):54-55.
    [25]中国产业信息网.2013-2018年中国体外诊断度剂专项研究及投资策略咨询报告[OL].2013,http://www.chyxx.com/industry/201312/224871.html.
    [26]应国清,王玉姣,易喻,俞志明,石陆娥.免疫亲和层析技术及其医药应用进展[J].药物生物技术,2005,(05):66-70.
    [27]徐丽一,刘丽强,国华,彭池方,宋珊珊,欧阳华,胥传来.三聚氰胺免疫亲和柱的制备和测试[J].食品与生物技术学报.2013,(07):749-753.
    [28]Xu Z. L., Deng H., Lei H. T., Jiang Y. M. Campbell K., Shen Y. D., Yang J. Y., Wang H., Sun Y. M. Development of a Broad-Specificity monoclonal Antibody-based immunoaffinity chromatography cleanup for organophosphorus pesticide determination in environmental samples[J]. Journal of Agricultural and Food Chemistry,2012,60(23):5847-5852.
    [29]Stachelin T., Hobbs D. S., Kung H., Lai C. Y., Pestka S. Purification and charactization of recombinant human-leukocyte intfon (IFLrA) with monoclonal-antibodies[J], Journal of Biological Chemistry,1981. 256(18):9750-9754.
    [30]Menegatti S., Naik A. D.. Gurgel P. V., Carbonell R. G. Purification of polyclonal antibodies from Cohn fractionⅡ plus Ⅲ skim miJk. and whey by affinity chromatography using a hexamer peptidc ligand[J]. Journal of Separation Science,2012,35(22S1):3139-3148.
    [31]Zhang C. H. G. P. Antibody methods and protocols[M]. New York,2012:240-247.
    [32]中国行业咨询网.2013年全球单克隆抗体产业发展现状浅析[OL].2013,http://www.china-consulting.cn/news/20130301/s84534.html..
    [33]Gen. Top 20 Best-Selling Drugs of 2012[OL].2013, http://www.genengnews.com/insight-and-intelligence/top-20-best-selling-drugs-of-2012/77899775/?page=2.
    [34]辛秀兰.生物分离与纯化技术[M].北京:科学出版社,2008.
    [35]吴少辉,刘光明.蛋白质分离纯化方法研究进展[J].中国药业,2012,(01):1-3.
    [36]王子佳,李红梅,弓爱君,曹艳秋,苑海涛.蛋白质分离纯化方法研究进展[J].化学与生物工程,2009,(08):8-11.
    [37]于善谦,王洪海,朱乃硕,叶荣.免疫学导论[M].北京:高等教育出版社,1999.
    [38]朱正美,刘辉.简明免疫学技术[M].北京:科学出版社,2002.
    [39]梁荣,伊岚,李健强.小鼠IgG类单克隆抗体三种纯化方法的比较[J].细胞与分子免疫学杂志,1996,(01):55-58.
    [40]Venkiteshwaran A., Heider P., Teyssevre L., Belfort G. Selective Precipitation-Assisted recovery of immunoglobulins from bovine serum using Controlled-Fouling crossflow membrane microfiltration[J]. Biotechnology and Bioengineering,2008,101(5):957-966.
    [41]郝少莉,仇农学.沉淀分离技术在蛋白质处理方面的应用[J].粮食与食品工业,2007,(01):20-22.
    [42]Conn E. J., Gurd F. R. N., Surgenor D. M., Barnes B. A., Brown R. K., Derouaux G., Gillespie J. M., Kahnt F. W., Lever W. F., Liu C. H., Mittelman D., Mouton R. F., Schmid K., Uroma E. A system for the separation of the components of human blood:Quantitative procedures for the separation of the protein components of human plasma la,b,c[J]. Journal of the American Chemical Society,1950,72(1):465-474.
    [43]于立芹,庞广昌.牛初乳中生物活性成分的研究进展[J].食品科学,2007,(09):604-609.
    [44]许亚平,林俊岳.蛋白质提纯研究进展[J].天津化工,2006,(04):9-12.
    [45]赵彭花.辛酸-低温乙醇沉淀法纯化小鼠腹水IgM类单克隆抗体[J].细胞与分子免疫学杂志,2011,(08):923-924.
    [46]Kuczewski M., Scbirmer E., Lain B., Zarbis-Papastoitsis G. A single-use purification process for the production of a monoclonal antibody produced in a P.C6 human cell line[J]. Biotechnology Journal, 2011,6(1):56-65.
    [47]Kuczewski M., Schirmer E., Lain B., Zarbis-Papastoitsis G. PEG precipitation:A powerful tool for monoclonal antibody purification[J]. Biopharm International,2010, S:20.
    [48]Mcdonald P., Victa C., Carter-Franklin J. N., Fahrner R. Selective antibody precipitation using polyelectrolytes:A novel approach to the purification of monoclonal antibodies[J]. Biotechnology and Bioengineering,2009,102(4):1141-1151.
    [49]Ma J. F., Hoang H., Myint T., Peram T., Fahrner R., Chou J. H. Using precipitation by polyamines as an alternative to chromatographic separation in antibody purification processes[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2010,878(9-10): 798-806.
    [50]Ma J. F., Hoang H., Myint T., Peram T., Fahrner R., Chou J. H. Using precipitation by polyamines as an alternative to chromatographic separation in antibody purification processes[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2010,878(9-10): 798-806.
    [51]Hirs C, Stein W. H., Moore S. Chromatography of proteins-ribonuclease[J]. Journal of the American Society,1951,73(4):1893.
    [52]Moore S., Stein W. H. Column chromatography of peptides and proteins[J]. Advances in Protein Chemistry,1956,11:191-236.
    [53]Sob H. A., Petson E. A. Chromatography of proteins on cellulose ion-exchangs[J]. Journal of the American Society,1954,76(6):1711-1712.
    [54]陆健.蛋白质纯化技术及应用[M].北京:化学工业出版社,2005.
    [55]欧阳平凯.生物分离原理及技术[M].北京:化学工业出版社,2010.
    [56]马泓冰,徐颖,夏瑜,朱一蓓,庄羽美,郁健峰,张学光.阴离子交换层析法纯化gp130单克隆抗体B-S12[J].中国免疫学杂志,2006,(08):750-753.
    [57]Corthi G., Boschetti E., Charleypoulain J. Improved method for igg purification from various animal species by ion-exchange chromatography[J]. Journal of Immunological Methods,1984,66(1):75-79.
    [58]Ishihara T., Yamamoto S. Optimization of monoclonal antibody purification by ion-exchange chromatography-Application of simple methods with linear gradient elution experimental data[J]. Journal of Chromatography A,2005,1069(1):99-106.
    [59]Azevedo A. M., Rosa P., Ferreira I. F., de Vries J., Visser T. J., Aires-Barros M. R. Downstream processing of human antibodies integrating an extraction capture step and cation exchange chromatography[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2009,877(1-2):50-58.
    [60]Chen J., Sun Y. Modeling of the salt effects on hydrophobic adsorption equilibrium of protein[J]. Journal of Chromatography A,2003,992(1-2):29-40.
    [61]Porath J., Sundbg L., Fornsted. N., Olsson I. Salting-out in amphiphilic gels as a new approach to hydrophobic adsorption[J]. Nature,1973,245(5426):465-466.
    [62]Hjten S. Some genal aspects of hydrophobic intaction chromatography[J]. Journal of Chromatography, 1973,87(2):325-331.
    [63]Lu Y. F., Williamson B., Gillespie R. Recent advancement in application of hydrophobic interaction chromatography for aggregate removal in industrial purification[J]. Current Pharmaceutical Biotechnology,2009,10(4):427-433.
    [64]Bolton G. R., Violand B. N., Wright R. S., Sun S. J., Sunasara K. M., Watson K.., Coffinan J. L., Gallo C, Godavarti R. Addressing the challenges in downstream processing today and tomorrow[J]. Biopharm International,2011,24(4):S8-S15.
    [65]Shukla A. A., Hubbard B., Tressel T., Guhan S., Low D. Downstream processing of monoclonal antibodies-Application of platform approaches[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2007,848(1):28-39.
    [66]Gagnon. Oral presentation[J]. Miami:2000.
    [67]Helling C., Borrmann C., Strube J. Optimal integration of directly combined hydrophobic interaction and ion exchange chromatography purification processes[J]. Chemical Engineering & Technology,2012, 35(10):1786-1796.
    [68]Nakano T., Ozimek L. Purification of glycomacropeptide from caseinate hydrolysate by gel chromatography and treatment with acidic solution[J]. Journal of Food Science,2000,65(4):588-590.
    [69]薛金艳,李俏俏,王云飞,王爱民.凝胶层析分离蛋白质实验方法的优化[J].哈尔滨医科大学学报,2010,(06):627-628.
    [70]Burginwo. A., Hnande. R., Just M. Separation of rubella IgM, IgA, and IgG antibodies by gel filtration on agarose[J]. Lancet,1971,2(7737):1278.
    [71]刘生杰,周杨,朱茂英,聂传鹏,李东伟,余为一,辛酸沉淀-凝胶过滤法提取猪血清IgM[J].阜阳师范学院学报(自然科学版),2007,(04):22-25.
    [72]Aldington S., Bonnerjea J. Scale-up of monoclonal antibody purification processes[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2007,848(1):64-78.
    [73]Hennik A. J., Bradstock K. F. Purification of murine monoclonal-antibodies of the IgM class by hydroxylapatite chromatography and gel-filtration[J]. Biomedical Chromatography,1993,7(3): 121-125.
    [74]Carlsson M., Hedin A., Inganas M., Harfast B., Blombg F. Purification of invitro produced mouse monoclonal antibodies a 2-step procedure utilizing cation-exchange chromatography and gel-filtration[J]. Journal of Immunological Methods,1985,79(1):89-98.
    [75]Azevedo A. M., Rosa P., Ferreira I. F., Aires-Barros M. R. Integrated process for the purification of antibodies combining aqueous two-phase extraction, hydrophobic interaction chromatography and size-exclusion chromatography[J]. Journal of Chromatography A,2008,1213(2):154-161.
    [76]王玉姣.亲和层析法纯化磷酸激酶的研究[D].杭州:浙江工业大学,2006.
    [77]Cuatreca. P., Anfinsen C. B. Affinity chromatography[J]. Annual Review of Biochemistry,1971,40: 259.
    [78]Porath J., Olin B. Immobilized metal-ion affinity adsorption and immobilized metal-ion affinity-chromatography of biomatials-sum-protein affinities for gel-immobilized iron and nickel ions[J]. Biochemistry,1983,22(7):1621-1630.
    [79]Jiang W., Graham B., Spiccia L., Hearn M. Protein selectivity with immobilized metal ion tacn sorbents: Chromatographic studies with human serum proteins and several other globular proteins[J]. Analytical Biochemistry,1998,255(1):47-58.
    [80]魏琪,姚汝华,鲍时翔.两种固定化金属螯合复合亲和膜色谱介质制备[J].功能高分子学报,2000,(01):90-92.
    [81]陈勇,徐燚皴,应汉杰,欧阳平凯.亲和层析研究进展[J].离子交换与吸附,2001,(03):276280.
    [82]Porath J., Carlsson J., Olsson I., Belfrage G. Metal chelate affinity chromatography, a new approach to protein fractionation[J]. Nature,1975,258(5536):598-599.
    [83]徐榕榕,周培江,杨严俊.金属螯合色谱分离提取初乳免疫球蛋白和乳铁蛋白[J].食品工业科技,2002,(11):35-37.
    [84]Bresolin I., Bueno S. Evaluation of amino acid O-Phosphoserine as ligand for the capture of immunoglubulin g from human serum[J]. Applied Biochemistry and Biotechnology,2012,167(3): 632-644.
    [85]Walker J. M., Page M., Thorpe R. Purification of IgG using affinity chromatography on antigen-ligand columns[Z]. Humana Press,20091769-1772.
    [86]Hey C., Zhang C. M. Process development for antibody purification from tobacco by protein a affinity chromatography [J]. Chemical Engineering & Technology,2012,35(1SI):142-148.
    [87]Huse K., Bohme H. J., Scholz G. H. Purification of antibodies by affinity chromatography [J]. Journal of Biochemical and Biophysical Methods,2002,51(3):217-231.
    [88]吴淑江,祝骥,李敏,易喻,梅建凤,朱克寅,应国清.蛋白A亲和层析法纯化抗乙肝核心抗原单克隆抗体[J].药物生物技术,2010,(01):67-72.
    [89]Fahmer R. L., Blank G. S., Zapata G. A. Expanded bed protein a affinity chromatography of a recombinant humanized monoclonal antibody:Process development, operation, and comparison with a packed bed method[J]. Journal of Biotechnology,1999,75(2-3):273-280.
    [90]Roque A., Silva C., Taipa M. A. Affinity-based methodologies and ligands for antibody purification: Advances and perspectives[J]. Journal of Chromatography A,2007,1160(1-2):44-55.
    [91]Hober S., Nord K., Linhult M. Protein a chromatography for antibody purification[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2007,848(1):40-47.
    [92]Mclaughlin L. W. Mixed-mode chromatography of nucleic-acids[J]. Chemical Reviews,1989,89(2): 309-319.
    [93]Burton S. C., Haggarty N. W., Harding D. One step purification of chymosin by mixed mode chromatography[J]. Biotechnology and Bioengineering,1997,56(1):45-55.
    [94]Burton S. C., Harding D. Salt-independent adsorption chromatography:New broad-spectrum affinity methods for protein capture[J]. Journal of Biochemical and Biophysical Methods,2001,49(1-3): 275-287.
    [95]Hansen M. B., Lihme A., Spitali M., King D. Capture of human Fab fragments by expanded bed adsorption with a mixed mode adsorbent[J]. Bioseparation,1999,8(1-5):189-193.
    [96]赵珺.以环糊精为基质的扩张床吸附剂的制备及银杏黄酮的分离[D].杭州:浙江大学,2010.
    [97]Pezzini J., Joucla G., Gantier R., Toueille M., Lomenech A. M., Le Senechal C., Garbay B., Santarelli X., Cabanne C. Antibody capture by mixed-mode chromatography:A comprehensive study from determinaton of optimal purification conditions to identification of contaminating host cell proteins[J]. Journal of Chromatography A,2011,1218(45):8197-8208.
    [98]夏海锋.纤维素基复合层析基质的功能化与应用基础研究[D].杭州:浙江大学,2008.
    [99]Xia H. F., Lin D. Q., Wang L. P., Chen Z. J., Yao S. J. Preparation and evaluation of cellulose adsorbents for hydrophobic charge induction chromatography [J]. Industrial & Engineering Chemistry Research,2008,47(23):9566-9572.
    [100]庄甜甜,夏海锋,林东强,姚善泾.混合模式吸附层析从猪血浆中分离免疫球蛋白[J].化工学报,2010,(02):336-341.
    [101]Tong H. F., Lin D. Q., Yuan X. M., Yao S. J. Enhancing IgG purification frem serum albumin containing feedstock with hydrophobic charge-induction chromatography [J]. Journal of Chromatography A,2012,1244:116-122.
    [102]Tong H. F., Lin D. Q., Gao D., Yuan X. M., Yao S. J. Caprylate as the albumin-selective modifier to improve IgG purification with hydrophobic charge-induction chromatography [J]. Journal of Chromatography A,2013,1285:88-96.
    [103]Lu H. L., Lin D. Q., Gao D., Yao S. J. Evaluation of immunoglobulin adsorption,pn the hydrophobic charge-induction resins with different ligand densities and pore sizes[J]. Journal of Chromatography A, 2013,1278:61-68.
    [104]Xia H. F., Lin D. Q., Chen Z. M., Yao S. J. Salt-Promoted Adsorption of an Antibody onto Hydrophobic Charge-Induction Adsorbents[J]. Journal of Chemical and Engineering Data,2010,55(12): 5751-5758.
    [105]童红飞,林东强,姚善泾.疏水性电荷诱导层析纯化免疫球蛋白IgY[J].化工学报,2011,(06):1574-1580.
    [106]Tong H. F., Lin D. Q., Pan Y., Yao S. J. A new purification process for goose immunoglobulin IgY(Delta Fc) with hydrophobic charge-induction chromatography[J]. Biochemical Engineering Journal, 2011,56(3):205-211.
    [107]Hassl A., Aspock H. Purification of egg-yolk immunoglobulins-a 2-step procedure using hydrophobic intaction chromatography and gel-filtration[J]. Journal of Immunological Methods,1988,110(2): 225-228.
    [108]Chen J. P., Wang C. H. Microfiltration affinity purification of lactofrin and immunoglobulin-g from cheese whey[J]. Journal of Food Science,1991,56(3):701.
    [109]Yu D. Q., Mclean M. D., Hall J. C, Cihosh R. Purification of a human immunoglobulin Gl monoclonal antibody from transgenic tobacco using membrane chromatographic processes[J]. Journal of Chromatography A,2008,1187(1-2):128-137.
    [110]Van-Reis R.. Zydney A. Bioprocess membrane technology[J]. Journal of Membrane Science,2007, 302(1-2):271.
    [[11]Qian H., Li C. J., Lin Z. Y., Zhang Y. X. Using thiophilic magnetic beads in purification of antibodies from human serum[J]. Colloids and Surfaces B-Biointerfaces,2010,75(I):342-348.
    [112]Mao L. N., Rogers J. K., Westoby M., Conley L., Pieracci J. Downstream antibody purification using aqueous two-phase extraction[J]. Biotechnology Progress,2010,26(6):1662-1670.
    [113]Albtsson P. A. Chromatography and partition of cells and cell fragments[J]. Nature,1956.177(4513): 771-774.
    [114]Kron K. H., I lustedH., Kula M. R. Extractive enzyme recovy-economic considatioas[J]. Process Biochemistry,1984.19(5):170-179.
    [115]Kula M. R., Kroner K.H., Hustedt H., Schutte H. Technical aspects of extractive enzyme purification.[J]. Annals of the New York Academy of Sciences.1981,369.
    [116]Hustedt H., Kron K.H., Menge U., Kula M. R. Protein recovy using 2-phase systems[J]. Trends in Biotechnology.1985,3(6):139-144.
    [117]Albertsson P. Partition of cell particles and macromolecules:Separation and purification of biomolecules, cell organdies, membranes, and cells in aqueous polymer two-phase systems and their use in biochemical analysis and biolechnology[C]. New York:1986.
    [118]Vazqucz-Villegas P., Espitia-Saloma L., Rito-Palomares M., Aguilar O. Low-abundant protein extraction from complex protein sample using a novel continuous aqueous two-phase systems devicc[J]. Journal of Separation Science,2013,36(2):391-399.
    [119]Wicndahl M., Oelmeier S. A., Dismer F., Hubbuch J. High-throughput screening-based selection and scale-up of aqueous two-phase systems for pDNA purification[J]. Journal of Separation Science,2012, 35(22S1):3197-3207.
    [120]Liu Y.. Wu Z. Y., Zhang Y. L., Yuan H. H. Partitioning of biomolecules in aqueous two-phase systems of polyethylene glycol and nonionic surfactant[J]. Biochemical Engineering Journal.2012.69: 93-99.
    [121]Bradley A. J., Scott M. D. Separation and purification of methoxypoly(ethylene glycol) grafted red blood cells via two-phase partitioning[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2004,807(1):163-168.
    [122]Chethana S., Nayak C. A., Raghavarao K. Aqueous two phase extraction for purification and concentration of betalains[J]. Journal of Food Engineering,2007,81(4):679-687.
    [123]Xing J. M., Li F. F. Purification of aloe polysaccharides by using aqueous two-phase extraction with desalination[J]. Natural Product Reasearch,2009,23(15):1424-1430.
    [124]林东强.双水相萃取的分离工艺及其热力学[D].杭州:浙江大学,1997.
    [125]唐孝宣,俞俊棠.新编生物工艺学[M].北京:化学工业出版社,2010.
    [126]李伟.温度诱导双水相技术提取黄芩黄酮类物质[D].杭州:浙江大学,1998.
    [127]李伟,朱自强,梅乐和.双水相萃取技术在药物分离和提取中的应用[J].化工进展,1998,(01):26-29.
    [128]徐长波,王巍杰.双水相萃取技术研究进展[J].化工技术与开发,2009,(05):40-44.
    [129]Zhang C. M., Medina-Bolivar F., Buswell S., Cramer C. L. Purification and stabilization of ricin B from tobacco hairy root culture medium by aqueous two-phase extraction [J]. Journal of Biotechnology, 2005,117(1):39-48.
    [130]胡松青,李琳,郭祀远,陈玲,蔡妙颜.双水相萃取技术研究新进展[J].现代化工,2004,(06):22-25.
    [131]Babu B. R., Rastogi N. K., Raghavarao K. Liquid-liquid extraction of bromelain and polyphenol oxidase using aqueous two-phase system[J]. Chemical Engineering and Processing,2008,47(1):83-89.
    [132]Nascimento K. S., Rosa P., Nascimento K. S., Cavada B. S., Azevedo A. M., Aires-Barros M. R. Partitioning and recovery of Canavalia brasiliensis lectin by aqueous two-phase systems using design of experiments methodology[J]. Separation and Purification Technology,2010,75(1):48-54.
    [133]Frerix. A., Muller M., Kula M. R., Hubbuch J. Scalable recovery of plasmid DNA based on aqueous two-phase separation[J]. Biotechnology and Applied Biochemistry,2005,42(1):57-66.
    [134]Hamamoto R., Kamihira M., Iijima S. Specific separation of animal cells using aqueous two-phase systems[J]. Journal of Fermentation and Bioengineering,1996,82(1):73-76.
    [135]Pan I. H., Yao H. J., Li Y. K. Effective extraction and purification of beta-xylosidase from Trichoderma koningii fermentation culture by aqueous two-phase partitioning [J]. Enzyme and Microbial Technology,2001,28(2-3):196-201.
    [136]Antov M. G. Partitioning of pectinase produced by Polyporus squamosus in aqueous two-phase system polyethylene glycol 4000/crude dextran at different initial pH values[J]. Carbohydrate Polymers,2004, 56(3):295-300.
    [137]Su C. K... Chiang B. H. Partitioning and purification of lysozyme from chicken egg white using aqueous two-phase system[J]. Process Biochemistry,2006,41(2):257-263.
    [138]Nitsawang S., Hatti-Kaul R., Kanasawuda P. Purification of papain from Carica papaya latex: Aqueous two-phase extraction versus two-step salt precipitation[J], Enzyme and Microbial Technology, 2006,39(5):1103-1107.
    [139]Madeira P. P., Teixeira J. A., Macedo E. A., Mikheeva L. M., Zaslavsky B. Y. Delta G(CH2) as solvent descriptor in polymer/polymer aqueous two-phase systems[J]. Journal of Chromatography A, 2008,1185(1):85-92.
    [140]Benavides J., Rito-Palomares M. Practical experiences from the development of aqueous two-phase processes for the recovery of high value biological products[J]. Journal of Chemical Technology and Biotechnology,2008,83(2):133-142.
    [141]Asenjo J. A., Andrews B. A. Aqueous two-phase systems for protein separation:A perspective[J]. Journal of Chromatography A,2011,1218(49SI):8826-8835.
    [142]Sulk B., Birkenmei G., Koppschlag G. Application of phase partitioning and thiophilic adsorption chromatography to the purification of monoclonal-antibodies from cell-culture fluid[J]. Journal of Immunological Methods,1992,149(2):165-171.
    [143]Andrews B. A., Nielsen S., Asenjo J. A. Partitioning and purification of monoclonal antibodies in aqueous two-phase systems[J]. Bioseparation,1996,6(5):303-313.
    [144]Platis D., Labrou N. E. Development of an aqueous two-phase partitioning system for fractionating therapeutic proteins from tobacco extract[J]. Journal of Chromatography A,2006,1128(1-2):114-124.
    [145]Rosa P., Azevedo A. M., Aires-Barros M. R. Application of central composite design to the optimisation of aqueous two-phase extraction of human antibodies[J]. Journal of Chromatography A, 2007,1141(1):50-60.
    [146]Azevedo A. M., Rosa P., Ferreira I. F., Aires-Barros M. R. Optimisation of aqueous two-phase extraction of human antibodies[J]. Journal of Biotechnology,2007,132(2):209-217.
    [147]Azevedo A. M., Rosa P., Ferreira I. F., Aires-Barros M. R. Integrated process for the purification of antibodies combining aqueous two-phase extraction, hydrophobic interaction chromatography and size-exclusion chromatography[J]. Journal of Chromatography A,2008,1213(2):154-161.
    [148]Azevedo A. M., Gomes A. G., Rosa P., Ferreira I. F., Pisco A., Aires-Barros M. R. Partitioning of human antibodies in polyethylene glycol-sodium citrate aqueous two-phase systems[J]. Separation and Purification Technology,2009,65(1 SI):14-21.
    [149]Azevedo A. M., Rosa P., Ferreira 1. F., Aires-Barros M. R. Chromatography-free recovery of biopharmaceuticals through aqueous two-phase processing[J]. Trends in Biotechnology,2009,27(4): 240-247.
    [150]Ruiz-Ruiz F., Benavides J., Aguilar O., Rito-Palomares M. Aqueous two-phase affinity partitioning systems:Current applications and trends[J]. Journal of Chromatography A,2012,1244:1-13.
    [151]Park H. M., Lee S. W., Chang W. J., Koo Y. M. Affinity separation by protein conjugated IgG in aqueous two-phase systems using horseradish peroxidase as a ligand carrier[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2007,856(1-2): 108-112.
    [152]Flanagan S. D., Barondes S. H. Affinity partitioning-method for purification of proteins using specific polym-ligands in aqueous polym 2-phase systems[J]. Journal of Biological Chemistry,1975, 250(4):1484-1489.
    [153]Andrews B. A., Head D. M., Dunthorne P., Asenjo J. A. PEG activation and ligand binding for the affinity partitioning of proteins in aqueous two-phase systems[J]. Biotechnology Techniques,1990,4(1): 49-54.
    [154]Birkenmei G., Vijayalakshmi M. A., Stigbrand T., Koppschlag G. Immobilized metal-ion affinity partitioning, a method combining metal protein-intaction and partitioning of proteins in aqueous 2-phase systems[J]. Journal of Chromatography,1991,539(2):267-277.
    [155]Zijlstra G. M., Michielsen M., Degooijer C. D., Vanderpol L. A., Tramper J. Hybridoma and CHO cell partitioning in aqueous two-phase systems[J]. Biotechnology Progress,1996,12(3):363-370.
    [156]Zijlstra G. M., Michielsen M., Degooijer C. D., Vanderpol L. A. Separation of hybridoma cells from their IgG product using aqueous two-phase systems[J]. Bioseparation,1996,6(4):201-210.
    [157]Zijlstra G. M., Michielsen M., de Gooijer C. D., van der Pol L. A., Tramper J. IgG and hybridoma partitioning in aqueous two-phase systems containing a dye-ligand[J], Bioseparation,1998,7(2): 117-126.
    [158]Zijlstra G. M., de Gooijer C. D., Tramper J. Extractive byconversions in aqueous two-phase systems[J]. Current Opinion in Biotechnology,1998,9(2):171-176.
    [159]Rosa P., Azevedo A. M., Ferreira I. F., de Vries J., Korporaal R., Verhoef H. J., Visser T. J., Aires-Barros M. R. Affinity partitioning of human antibodies in aqueous two-phase systems[J]. Journal of Chromatography A,2007,1162(1):103-113.
    [160]Ferreira I. F., Azevedo A. M., Rosa P., Aires-Barros M. R. Purification of human immunoglobulin G by thermoseparating aqueous two-phase systems[J]. Journal of Chromatography A,2008,1195(1-2): 94-100.
    [161]Azevedo A. M., Rosa P., Ferreira I. F., Pisco A., de Vries J., Korporaal R., Visser T. J., Aires-Barros M. R. Affinity-enhanced purification of human antibodies by aqueous two-phase extraction[J]. Separation and Purification Technology,2009,65(1 SI):31-39.
    [162]Azevedo A. M., Rosa P., Ferreira I. F., de Vries J., Visser T. J., Aires-Barros M. R. Downstream processing of human antibodies integrating an extraction capture step and cation exchange chromatography[J]. Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences,2009,877(1-2):50-58.
    [163]Rodrigues L. R., Venancio A., Teixeira J. A. Recovery of the proteose peptone component 3 from cheese whey in Reppal PES 100/polyethylene glycol aqueous two-phase systems[J]. Biotechnology Letts,2003,25(8):651-655.
    [164]Persson J., Andersen D. C., Lester P. M. Evaluation of different primary recovery methods for E-coli-derived recombinant human growth hormone and compatibility with further down-stream purification[J]. Biotechnology and Bioengineering,2005,90(4):442-451.
    [165]Skuse D. R., Norrisjones R., Yalpani M., Brooks D. E. Hydroxypropyl cellulose poly(ethylene glycol)-co-poly(propylene glycol) aqueous 2-phase systems-system charactization and partition of cells and proteins[J]. Enzyme and Microbial Technology,1992,14(10):785-790.
    [166]Medin A. S., Janson J. Studies on aqueous polymer two-phase systems containing agarose[J]. Carbohydrate Polymers,1993,22(2):127-136.
    [167]Sturesson S., Tjneld F., Johansson G. Partition of macromolecules and cell particles in aqueous 2-phase systems based on hydroxypropyl starch and poly(ethylene glycol)[J]. Applied Biochemistry and Biotechnology,1990,26(3):281-295.
    [168]Almeida M. C., Venancio A., Teixeira J. A., Aires-Barros M. R. Cutinase purification on poly(ethylene glycol) hydroxypropyl starch aqueous two-phase systems[J]. Journal of Chromatography B,1998,711(1-2):151-159.
    [169]Pereira M., Wu Y. T., Madeira P., Venancio A., Macedo E., Teixeira J. Liquid-liquid equilibrium phase diagrams of new aqueous two-phase systems:Ucon 50-HB5100+ammonium sulfate plus water, Ucon 50-HB5100+poly(vinyl alcohol) plus water, Ucon 50-HB5100+hydroxypropyl starch plus water, and polyethylene glycol) 8000+poly(vinyl alcohol) plus water[J]. Journal of Chemical and Engineering Data,2004,49(1):43-47.
    [170]Adkins J. N., Varnum S. M., Auberry K. J., Moore R. J., Angell N. H., Smith R. D., Springer D. L., Pounds J. G. Toward a human blood serum proteome-Analysis by multidimensional separation coupled with mass spectrometry[J]. Molecular& Cellular Proteomics,2002,1(12):947-955.
    [171]Burtis C. A., Ashwood E. R. Tietz fundamentals of clinical chemistry[M].5th Ed ed. Philadelphia, PA: W.B. Saunders Company,2001.
    [172]Protein Data Bank[OL].2014, http://www.rcsb.org/pdb/home/home.do.
    [173]ProParam tool[OL].2014, http://web.expasy.org/protparam/.
    [174]PDB2PQR.server[OL].2014, http://nbcr-222.ucsd.edu/pdb2pqrj.8/.
    [175]Plackett R. L., Burman J. P. The design of optimum multifactorial experiments[J]. Biometrika,1946, 33(4):305-325.
    [176]Box G., Behnken D. W. Simplex-sum designs-a class of 2nd ord rotatable designs divable from those of 1st ord[J]. Annals of Mathematical Statistics,1960,31(4):838-864.
    [177]Montgomery D. C., Anderson-Cook C. M. Response surface methodology[M].3rd ed. Hoboken, N.J, 2009:680.
    [178]汪正范.色谱定性与定量[M].北京:化学工业出版社,2007.
    [179]Hunter R. J. Zeta potential in colloid science-principle and applications[M]. San Diego:Academic Press Inc.,1981.
    [180]Mao L. N., Rogers J. K., Westoby M., Conley L., Pieracci J. Downstream Antibody Purification using Aqueous Two-Phase Extraction[J]. Biotechnology Progress,2010,26(6):1662-1670.
    [181]Rosa P., Ferreira I. F., Azevedo A. ML, Aires-Barros M. R. Aqueous two-phase systems:A viable platform in the manufacturing of biopharmaceuticals[J]. Journal of Chromatography A,2010,1217(16): 2296-2305.
    [182]谭平华,林金清,肖春妹,郝三存.双水相萃取技术研究进展及应用[J].化工生产与技术,2003,(01):19-23.
    [183]宋熙熙.蛋白质—表面活性剂相互作用及酶催化反应的量热学研究[D].杭州:浙江大学,2008.
    [184]张龙,胡新根,方国勇.N-乙酰-L-半胱氨酸修饰的CdTe量子点与人血清白蛋白的相互作用[J].广东化工,2011,38,(8):23-24.
    [185]Nelson A. L., Dhimolea E., Reichert J. M. Development trends for human monoclonal antibody therapeutics[J]. Nature Reviews Drug Discovery,2010,9(10):767-774.
    [186]Gottschalk U. The renaissance of protein purification[J]. Biopharm International,2006, S:8-9.
    [187]Schugerl K., Hubbuch J. Integrated bioprocesses[J]. Current Opinion in Microbiology,2005,8(3): 294-300.
    [188]Wan Y. H., Vasan S., Ghosh R., Hale G., Cui Z. F. Separation of monoclonal antibody alemtuzumab monomer and dimers using ultrafiltration[J]. Biotechnology and Bioengineering,2005,90(4): 422-432.
    [189]Lazarova Z., Tonova K. Integrated reversed micellar extraction and stripping of a-amylase[J]. Biotechnology and Bioengineering,1999,63(5):583-592.
    [190]姚善泾,苏志国,朱自强.国家自然科学基金重点项目简介[M].北京:科学出版社,1999.
    [191]Caldwell S. R., Varghese J., Puri N. K. Large scale purification process for recombinant NSl-OspA as a candidate vaccine for Lyme disease[J]. Bioseparation,1996,6:115-123.
    [192]范杰平,曹婧,孔涛,张璐.[Bmim]Br-K2HPO4双水相萃取与超声耦合法提取葛根中的葛根素及其优化[J].高校化学工程学报,2011,(06):955-960.
    [193]Xia H., Lin D., Wang L., Chen Z., Yao S. Preparation and evaluation of cellulose adsorbents for hydrophobic charge induction chromatography [J]. Industrial & Engineering Chemistry Research,2008, 47(23):9566-9572.
    [194]Hofer S., Ronacher A., Horak J., Graalfs H., Lindner W. Static and dynamic binding capacities of human immunoglobulin G on polymethacrylate based mixed-modal, thiophilic and hydrophobic cation exchangers[J]. Journal of Chromatography A,2011,1218(49):8925-8936.
    [195]Heeboll-Nielsen A., Justesen S. F. L., Thomas O. R. T. Fraetionation of whey proteins with high-capacity superparamagnetic ion-exchangers[J]. Journal of Biotechnology,2004.113(1-3):247-262.
    [196]Yon R. J. A large polypeptide-chain model capable of realistic folding[J]. Biochemical Education, 1974,2(3):46-47.
    [197]郑宇.低温氧等离子体法制备亲和膜[D].杭州:浙江大学,1998.
    [198]杨青,冯小黎,苏志国.第八届生物化工学术会议论文集[M].北京:化学工业出版社,1998.
    [199]陆瑾.温度诱导双水相金属赘合亲的分配技术的研究[D].杭州:浙江大学,2004
    [200]张志贤,张瑞镐.有机宫能团定量分析[M].北京:化学工业出版社,1990.
    [201]Persson J., Kaul A., Tjcrneld F. Polymer recycling in aqueous two-phase extractions using thermoseparating ethylene oxidc-propylene oxide copolymers[J]. Journal of Chromatography B,2000. 743(1-2):115-126.
    [202]Head D. M., Andrews B. A., Asenjo J. A. Epoxy-oxirane activation of PEG for protein ligand coupling[.l|. Biotechnology Techniques,1989,3(1):27-32.
    [203]Burton S. C. Harding D. Hydrophobic charge induction chromatography:Salt independent protein adsorption and facile elution with aqueous buffers[J]. Journal of Chromatography A,1998.814(1-2): 71-81.
    [204]林贤福.现代波谱分析方法[M].上海:华东理工大学出版社,2009.
    [205]Dust J. M., Fang Z. H., Harris J. M. Proton NMR charactization of poly(ethylene glycols) and divatives[J]. Macromolecules.1990,23(16):3742-3746.
    [206]中国石油和化学工业协会,全国化学标准化技术委员会无机化合分会.化学工业标准汇编-化学手册[M].北京:中国标准出版社,1996.
    [207]陈钧鸿,徐玲娣.抗生素工业分析[M].北京:中国医药科技出版社,1991.
    [208]赵琦.基于分子对接技术的小分子-蛋白质相互作用研究[D].无锡:江南大学,2009.
    [209]陈强,谭民裕,刘伟生.超分子中分子间弱相互作用力的研究方法概述[J].化学通报,2001,(04):236-239.

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