Synthesis of composite material of cobalt oxide (Co3O4) with hydroxide functionalized multi-walled carbon nanotubes (MWCNTs) for electrochemical determination of uric acid

The gout is mainly found due to accumulation of uric acid crystals into the joints which produces inflammatory symptoms. Thus, it highly demanded detect from our body. Herein, we prepare a composite material cobalt oxide (Co3O4) with hydroxide functionalized multi-walled carbon nanotubes (MWCNTs) by hydrothermal method. used for modification glassy electrode (GCE) and investigated electrochemical determination (UA). analytical techniques such as scanning electron microscopy (SEM), powder X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) Fourier Infra-red (FTIR) are characterize material. Co3O4 exhibits dendrite morphology very well chemically coupled MWCNTs. elemental analysis confirms presence (Co), oxygen (O) (C) main constituent exhibitsa cubic unit cell crystallography in system. FTIR study reveals characteristic bands Co–O cyclic voltammetry isused properties prepared materials. sample highest percentage MWCNTs shows an excellent activity towards oxidation phosphate buffer solution pH 7.3. enzyme free sensor possesses linear range 0.1 mM 3 quantified limit detection 0.005 ± 0.0023 mM. modified stable, selective, sensitive acid, therefore may be monitoring clinical samples. proposed can great interest biomedical fields.