Background:
The glucose detection is of great significance in biomedicine. In clinical medicine, diabetes
seriously endangers human health. By accurately measuring the blood glucose content of diabetic patients, diabetes can be
effectively monitored and treated. At present, there are many methods for measuring glucose content, such as
chromatography, spectroscopy, and electrochemical methods. Among them, electrochemical glucose sensors are widely
used because of their high reliability, low cost and easy operation.
Methods:
Combining graphene with other nanomaterials (including graphene, metal oxides, semiconductor nanoparticles,
polymers, dye molecules, ionic liquids and biomolecules) is an effective way to expand or enhance the sensing
performance.
Results:
The composite of graphene and nanomaterials is an effective way to enhance the functionality of the
electrochemical sensor. Graphene can accelerate electron transfer and realize direct electrochemistry and biological
sensing. At the same time, graphene derivatives with rich composition and structure provide the possibility to further
regulate their electrochemical performance.These graphene composite-based biosensors have shown excellent sensitivity
and selectivity for glucose detection.
Conclusion:
Electrochemical glucose sensor based on graphene composite has received extensive attention. Although
these materials have made significant progress in improving the sensitivity, lowering the detection limit and broadening
the linear range, there are still facing challenges that require further study.