Bio-inspired magnetite/lignin/polydopamine-glucose oxidase biosensing nanoplatform. From synthesis, via sensing assays to comparison with others glucose testing techniques

摘要

Glucose monitoring has become a crucial part of diabetes care, and is also of importance in the food industry. However, the measurements are subject to certain limitations and errors. These may result from many factors, including the strip manufacturing process, inappropriate storage, temperature, coding, aging, etc. Here, we discuss the measurement of glucose in real samples using techniques such as photometric assay, glucometers, and using a proposed biosensor. Biosensor platforms based on the multicomponent material magnetite/lignin/polydopamine-glucose oxidase with the addition of ferrocene and a dedicated carbon paste electrode (CPE/Fe3O4/Lig/PDA/GOx/Fc) were fabricated for glucose detection in real, commercially available glucose-based samples.