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The preparation of size-controlled functionalized polymeric nanoparticles in micelles

机译:胶束中尺寸控制的功能化聚合物纳米粒子的制备

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The reverse micellar system of dioctyl-sulfosuccinate (AOT)/octane and toluene have been used as a template for polymerization of acrylamide (AA)/bisacrylamide (BAA)-based functionalized polymeric nanoparticles. Such nanoparticles are typically sized between 20 and 90 nm. They can be synthesized with different functional groups according to the monomers added to the polymerization mixture. In our experiments the nanoparticles carried amino and carboxyl groups following incorporation of allylamine (AAm) or methacrylic acid (MAA) monomers, respectively. The available amine or carboxyl groups can then be used for immobilization of enzymes or other biomolecules. These enzymes, subtilisin, laccase and lipase, were immobilized onto polyAA/BAA/MAA nanoparticles covalently after activating the MAA carboxylic groups with Woodward's K reagent. Non-covalent immobilization via electrostatic interaction was also performed.
机译:磺基琥珀酸二辛酯(AOT)/辛烷和甲苯的反胶束体系已用作基于丙烯酰胺(AA)/双丙烯酰胺(BAA)的功能化聚合物纳米粒子聚合的模板。此类纳米颗粒的尺寸通常在20至90nm之间。它们可以根据添加到聚合混合物中的单体而具有不同的官能团来合成。在我们的实验中,分别引入烯丙胺(AAm)或甲基丙烯酸(MAA)单体后,纳米粒子带有氨基和羧基。然后,可用的胺或羧基可用于固定酶或其他生物分子。用伍德沃德的K试剂活化MAA羧基后,将这些酶(枯草杆菌蛋白酶,漆酶和脂肪酶)共价固定在polyAA / BAA / MAA纳米颗粒上。还进行了通过静电相互作用的非共价固定。

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