42 results about "Peroxidase like" patented technology

The invention discloses a cobaltosic oxide micro-ribbon with high peroxidase-like activity and stability and a preparation method therefor. According to the Co3O4 micro-ribbon with high peroxidase-like activity and stability, the micro-ribbon is of a ribbon-shaped structure formed through connecting Co3O4 single-crystal grains. The preparation method comprises the steps: firstly, dissolving polyvinyl pyrrolidone (PVP) into ethanol, adding a cobalt nitrate solution into the solution after the PVP is completely dissolved, and carrying out uniform mixing, so as to obtain spinning sol; then, carrying out spinning on the spinning sol by adopting an electrostatic spinning method, so as to obtain gelatinous fibers, and carrying out drying; and finally, carrying out staged calcination on the dried gelatinous fibers, thereby obtaining the Co3O4 micro-ribbon. When the micro-ribbon is used as mimetic peroxidase, activity can be shown in a relatively wide pH and temperature range; a sample shows relatively good affinity to H2O2 and TMB; and meanwhile, the micro-ribbon with relatively high specific surface area shows relatively high peroxidase-like activity and stability.