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Regenerated silk fibroin prepared from waste silk was employed as immobilization matrix for peroxidase and the structures of the blend membranes of regenerated silk fibroin and peroxidase were first investigated with IR and scanning electron microscopy. There was intermolecular interaction between peroxidase and regenerated silk fibroin in the immiscible state. Cyclic voltammetry and constant applied...
Efforts to replace native peroxidase with its low molecular weight alternatives have stimulated a search for peroxidase mimetics. Herein we describe the oxidation of luminol with hydrogen peroxide catalyzed by commercially available Fe III –TAML activator 1a, which was shown to be a more active catalyst than hemin. At Fe III –TAML activator 1a use in chemiluminescent assay for H ...
Recently a covalent peroxidase-mimicking DNAzyme (cPMDNAzyme) with the improved catalytic activity was prepared. Here we demonstrate that hydrogen peroxide, the oxidant substrate of cPMDNAzyme is an inactivating agent of this catalyst. Presence of the reductant substrate, 2,2′-azino-bis(3-ethylbenthothiazoline-6-sulfonic acid (ABTS) prevents the inactivation of cPMDNAzyme. The experimental conditions...
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