Title:Carbon Dots Hybrid Nanostructure-based Electrochemical Sensors:
Applications in Determining Different Species in a Real Sample
Volume: 20
Issue: 1
Author(s): Joao A. Ferreira, Luccas L. Name, Laura C. Lieb, Daniel Y. Tiba, Mariana M. da Silva, Aprys C. Oliveira and Thiago C. Canevari*
Affiliation:
- Multifunctional Hybrid Nanomaterials Laboratory, Engineering School, Mackenzie Presbyterian University, São Paulo
01302-907, SP, Brazil
Keywords:
Carbon dots, hybrid nanomaterials, electrochemical sensors, real samples, XRD, AFM.
Abstract: This overview describes the synthesis, characterization, and application of different
carbon dots hybrid nanostructures obtained by chemical interaction between nanomaterials or
nanomaterials bonded to another material, i.e. silicon (SiO2/Carbon dots-N), reduced graphene
oxide (rGO/Carbon dots), multiwalled carbon nanotubes (MWCNTs/Carbon dots), nano magnetite
(Carbon dots/Fe3O4), reduced graphene oxide and gold nanoparticles (rGO/Carbon
dots/AuNPs), copper oxide (CuO/Carbon dots), and Carbon dots/Metallic NPs that were employed
in the development of electrochemical (bio)sensors. The formation of different carbon
dots hybrid nanostructures has been characterized by X-ray diffraction (XRD), Raman and ultraviolet-
visible spectroscopy, atomic force microscopy (AFM), high-resolution transmission electron
microscopy (HR-TEM), and electrochemical techniques. These carbon dots hybrid
nanostructures have been used to modify the surface of glassy carbon and screen-printed electrodes
and to determine various analytes, i.e., dopamine, uric acid, paracetamol, ephynefrin,
dihydroxybenzenes, pesticides, endocrine disruptors, NADH, and other substances in real samples.