| 聚苯乙烯-g-聚氧乙烯接枝共聚物表面阻抗蛋白质吸附的研究 |
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| 引用本文： | 孙永红,邱永兴,俞小洁,封麟先.聚苯乙烯-g-聚氧乙烯接枝共聚物表面阻抗蛋白质吸附的研究[J].高等学校化学学报,1996,17(4):642. |
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| 作者姓名： | 孙永红 邱永兴 俞小洁 封麟先 |
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| 作者单位： | 浙江大学高分子科学与工程系, 杭州 310027 |
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| 基金项目： | 国家自然科学基金,国家863青年基金 |
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| 摘 要： | 利用放射性碘标记技术研究了血浆蛋白质-缓冲溶液体系在聚苯乙烯-g-聚氧乙烯接枝共聚物表面的等温吸附和吸附动力学。材料表面蛋白质等温吸附量或平衡吸附量随表面PEO含量增加而下降;吸附量最低值小于0.25μg,cm-2;同时探讨了材料表面”梳状“结构对材料表面PEO侧链阻抗蛋白质性能的影响。
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| 关 键 词： | 聚苯乙烯-g-聚氧乙烯表面结构 阻抗蛋白质 血浆蛋白质等温吸附 |
| 收稿时间： | 1995-04-02 |
Studies on Protein-Resistance of AmphiphilicPolystyrene-g-Poly (ethylene oxide)Copolymers |
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| SUN Yong-Hong,QIU Yong-Xing,YU Xiao-Jie,FENG Lin-Xian.Studies on Protein-Resistance of AmphiphilicPolystyrene-g-Poly (ethylene oxide)Copolymers[J].Chemical Research In Chinese Universities,1996,17(4):642. |
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| Authors: | SUN Yong-Hong QIU Yong-Xing YU Xiao-Jie FENG Lin-Xian |
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| Institution: | Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027 |
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| Abstract: | The adsorption isotherm and kinetics of simple plasma protein (human serum albumin immunoglobulin or fibrinogen)-buffer onto the surfaces of (PS-g-PEO) graft copolymers were investigated by radioiodine labelling technique.The reliability of IC1 labellingmethod was verified.It was discovered that the plateau protein adsorption amount usuallydecreased with surface PEOcontent of PS-g-PEOs increasing;the lowest protein plateau adsorption values were observed <0.25 μg.cm-2.The "comb-like" structure of model materials might be more fit for protein-resistant property of PEO side chains. |
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| Keywords: | Surface structure of polystyrene-g-poly (ethylene oxide) Protein-resistance Isothermal adsorption of plasma proteins |
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