Novel Detection Method of Nitric Oxide Using Horseradish Peroxidase.

Chemiluminescence biosensors for DNA detection using graphene oxide and a horseradish peroxidase-mimicking DNAzyme.

In this communication, we demonstrate that graphene oxide (GO) greatly inhibits the peroxidatic activity of a horseradish peroxidase-mimicking DNAzyme. Combining this observation with the unique DNA/GO interactions, an ultrasensitive GO-based chemiluminescence DNA biosensing platform is developed.

Cobalt-substituted horseradish peroxidase.

Horseradish peroxidase can be reconstituted with cobalt porphyrin to give a cobaltic holoenzyme having physicochemical properties quite similar to those of the native ferric protein. The cobaltic protein (Co3+HRP) can be reduced to the cobaltous form (CoHRP), the analogue of ferroperoxidase and the reduced cobalt protein can bind O2 to form an analogue of oxyferroperoxidase (Compound III). Sinc...

A simple method for the preparation of horseradish peroxidase.

Studies on Horseradish Peroxidase

The kinetics of the oxidation of p-cresol by Compound II of horseradish peroxidase has been studied by the stopped flow technique at an ionic strength of 0.11 from pH 2 to 11. In acid solution the reaction is kinetically first order in jcresol, but in the alkaline region a saturation effect attributable to complex formation is observed. At very high pH an additional second order reaction betwee...

Novel horseradish peroxidase substrates for use in immunohistochemistry.

New chromogens expand the colour palette for horseradish peroxidase chromogens used in immunohistochemistry. Tissue staining of cytokeratin with three new cyanine-based chromogens is described. Their use as fluorescent reporters is demonstrated.