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PEGylated silica-enzyme nanoconjugates: a new frontier in large scale separation of α-amylase.


ABSTRACT: High resolution is nearly lost at the expense of throughput in most conventional bioseparation methods. Nanoparticles, due to their high surface to volume ratio, are attractiveenzyme carriers, which can boost the performance of extraction manifold. Here, wereport design and application ofa method highly capable of improving the partitioning of α-amylase in aqueous two-phase system of polymer and salt. Silica nanoparticle introduced to the system acts as a bridge that connects the enzyme and polymer. Theconjugated nanoparticles form the major part of the upper phase and thus significantly enhance the protein recovery. A thorough investigation was performed on the structure of the nanoconjugatesas well as analyzing the conformational structure of the enzyme after conjugationto explore anypossible denaturation.

SUBMITTER: Mohsen Dehnavi S 

PROVIDER: S-EPMC4677402 | biostudies-other | 2015 Dec

REPOSITORIES: biostudies-other

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