Abstract

Evaluation of Peroxidase in an Electrochemical Sensor

Author(s): Shuai Hao

Enzymatic browning requires the presence of phenolic substrates, enzymes, and oxygen to take place. Polyphenol oxidase, peroxidase, catalase, and superoxide dismutase are enzymes that produce enzymatic browning of plants. Peroxidase is an oxidase that catalyses substrates by using hydrogen peroxide as an electron acceptor. It is present in plants, animals, and microbes. Most peroxidases, which are heme-binding proteins that contain iron ions, contain heme cofactors. Some peroxidases use copper, manganese, vanadium, or selenium to replace the iron in heme. Large-area, low-cost photoelectrodes are a good fit for nanoscale materials. For example, high-throughput deposition technologies like roll-to-roll manufacturing might be used to deposit affordable, solution-processed nanoparticle inks on flexible substrates.