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    • 4. 发明授权
    • Synthesis and characterization of biodegradable cationic poly(propylene fumarate-co-ethylene glycol) copolymer hydrogels modified with agmatine for enhanced cell adhesion
    • 用丁胺改性的可生物降解阳离子聚(丙烯富马酸酯 - 共 - 乙二醇)共聚物水凝胶的合成和表征,增强细胞粘附
    • US07629388B2
    • 2009-12-08
    • US10300202
    • 2002-11-20
    • Antonios G. MikosKazuhiro Tanahashi
    • Antonios G. MikosKazuhiro Tanahashi
    • A67K47/00A01N25/00
    • A61K47/60
    • A cross-linkable monomer comprises a fumaric acid functional group having a first end and a second end, a first spacer group affixed to said first end and comprising at least repeating unit, a first terminal group affixed to said first spacer group, a second spacer group affixed to said second end and comprising at least one ethylene glycol repeating unit, and a second terminal group affixed to said second spacer group. A hydrogel formed by cross-linking the present monomer and a method for making the monomer. A method for forming a hydrogel, comprises the steps of a) synthesizing a copolymer of poly(propylene fumarate) (PPF) and poly(ethylene glycol (PEG) so as to produce P(PF-co-EG), b) synthesizing a PEG-tethered fumarate (PEGF), c) coupling agmatine sulfate to the PEGF to produce PEGF modified with agmatine (Agm-PEGF), and d) cross-linking the P(PF-co-EG) from step a) with Agm-PEGF from step c).
    • 可交联单体包括具有第一末端和第二末端的富马酸官能团,第一间隔基团固定在所述第一末端并且包含至少重复单元,固定到所述第一间隔基团的第一末端基团,第二间隔基团 固定在所述第二端并且包含至少一个乙二醇重复单元的基团和固定到所述第二间隔基团上的第二末端基团。 通过交联本发明单体形成的水凝胶和制备该单体的方法。 一种形成水凝胶的方法,包括以下步骤:a)合成聚(丙烯酸富马酸酯)(PPF)和聚(乙二醇(PEG))以产生P(PF-co-EG)的共聚物,b) PEG连接的富马酸酯(PEGF),c)将硫酸胍加到PEGF上以产生用胍丁胺(Agm-PEGF)修饰的PEGF,和d)将来自步骤a)的P(PF-co-EG)与Agm- 来自步骤c)的PEGF。
    • 10. 发明申请
    • FRACTIONATION APPARATUS
    • 分类装置
    • US20110009503A1
    • 2011-01-13
    • US12834666
    • 2010-07-12
    • Kazuhiro TANAHASHIHiroshi TakahashiHiroyuki SugayaShigehisa Wada
    • Kazuhiro TANAHASHIHiroshi TakahashiHiroyuki SugayaShigehisa Wada
    • C08J5/22C08J3/28
    • C07K1/22
    • The present invention discloses a fractionation device used for proteins and/or peptides, which has any of the following features:1) At least one portion of a substrate surface with which proteins or the like are made in contact has an amount of adsorption of bovine serum albumin of 50 ng/cm2 or less with respect to the substrate surface, when a bovine serum albumin solution is made in contact therewith. 2) At least one portion of a substrate surface with which proteins or the like are made in contact has an amount of adsorption of human β2-microglobulin of 3 ng/cm2 or less with respect to the substrate surface, when a protein aqueous solution consisting of human β2-microglobulin and bovine serum albumin is made in contact with the substrate surface. 3) The fractionation device is provided with: a means for supplying a solution containing proteins or the like; a means for separating proteins or the like from the solution; and a means for concentrating proteins or the like in the solution, and in the fractionation device, at least one portion of the substrate surface with which proteins or the like are made in contact is subjected to a grafting process by using a hydrophilic polymer. By using the above-mentioned device, it becomes possible to reduce non-peculiar adsorption of protein onto the substrate, and consequently to easily provide a sample from which proteins having high-molecular weights have been removed, and which is advantageously used for an analysis.
    • 本发明公开了一种用于蛋白质和/或肽的分级装置,其具有以下特征:1)与蛋白质等接触的底物表面的至少一部分具有牛的吸附量 当与其接触的牛血清白蛋白溶液时,相对于底物表面的血清白蛋白为50ng / cm 2以下。 2)当与蛋白质接触的基底表面的至少一部分相对于底物表面具有3ng / cm 2以下的人和2μg微球蛋白的吸附量,当蛋白质水溶液 由人类和微生物组织的2-微球蛋白和牛血清白蛋白组成的溶液与底物表面接触。 3)分离装置设有:用于供给含有蛋白质等的溶液的装置; 用于从溶液中分离蛋白质等的方法; 以及用于将蛋白质等浓缩在溶液中的方法,并且在分级装置中,通过使用亲水性聚合物对与蛋白质等接触的基底表面的至少一部分进行接枝处理。 通过使用上述装置,可以减少蛋白质在基质上的非特异性吸附,从而容易地提供已经除去高分子量蛋白质的样品,并且有利地用于分析 。