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Lipase Immobilization on Functional Group Controlled Surfaces

机译:脂肪酶固定官能团控制表面上的固定化

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A simple means was demonstrated to control the functional group on surface and use this surface as a model support to investigate the effect of surface chemistry on lipase adsorption and its activity. It was based on mixing polystyrene (PS) solution with small molecular weight functional group-terminated polystyrenes (PS-Fs, functional groups such as -CH_3, -CF_3, -NH_2, -COOH and -OH) and casting them on glass plates to fabricate the functional group controlled surfaces. The amount of adsorbed lipase on the surface with similar functional group density was -CH_3 > PS > -CF_3 > -NH_2 > -COOH > -OH. The activity retention of the immobilized lipase was -OH > -NH_2 > -COOH > -CF_3 > -CH_3 > PS.
机译:证明一种简单的手段以控制表面上的功能组,并使用该表面作为模型支持,以研究表面化学对脂肪酶吸附的影响及其活性。它基于与小分子量官能团封端的聚苯乙烯(PS-FS,官能团如-CH_3,-CF_3,-NH_2,-2,-COOH和-OH)的混合聚苯乙烯(PS)溶液并在玻璃板上浇铸它们制造功能组控制表面。具有相似官能团密度的表面上吸附的脂肪酶的量为-CH_3> -CF_3> -NH_2> -COOH> -OH。固定化脂肪酶的活性保持是-OH> -NH_2> -COOH> -CF_3> -CH_3> PS。

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