Abstract 3, 3', 5, 5'-Tetramethylbenzidine (TMB) is by far the most well-known colorimetric
substrate in various colorimetric assays, including ELISA and typical H 2 O 2/reactive …

This paper reports a sensitive method for assaying xanthine oxidase (XO) enzyme activity.
XO produces hydrogen peroxide (H 2 O 2) and superoxide anion radicals (O 2•−), promoting …

Nowadays, biosensors are gaining increasing interest in foods' and beverages' quality
control, owing to their economic production, enhanced sensitivity, specificity, and faster …

Glucose is an important source of energy for the human body, but excessive intake will
destroy the body's metabolic balance and increase health risks. In this paper, a smartphone …

Background Enzyme‐based colorimetric systems are inexpensive, simple, adaptable and
sensitive methods that allow specific quantification of a substrate. In the clinical field, their …

The effect of a dielectric conical structure on the adsorption properties of an enzyme on mica
was studied by atomic force microscopy (AFM) with the example of horseradish peroxidase …