Self-assembled dendrite-like 3D-CeO₂ nanostructures for non-enzymatic vitamin B2 sensor

Developing a one-pot route to construct hierarchical self-assembly of ordered nanostructures with promising functions is highly desirable, delivering enormous opportunities especially, in electrochemical sensing. Herein we present a highly efficient nanostructured dioxocerium (CeO₂) for non-enzymatic electrochemical sensing of riboflavin. The CeO₂ nanostructures possess homogeneity in sizes, unique morphologies, and remarkable structural stability. Furthermore, the resultant dendritic CeO₂ nanostructures is deposited over glassy carbon electrode (GCE) surface (dendritic CeO₂/GCE), and display well-defined redox peak with good sensitivity and excellent electrochemical reduction ability towards successive addition of riboflavin. Therefore, the proposed synthetic strategy provides a new methodology to explore various potentially active nanomaterials, and also modification of the electrode surface with these nanomaterials would offer a promising sensing device in various electrocatalytic applications.