A practical non-enzymatic urea sensor based on NiCo₂O₄ nanoneedles.

ABSTRACT: We propose a new facile electrochemical sensing platform for determination of urea, based on a glassy carbon electrode (GCE) modified with nickel cobalt oxide (NiCo₂O₄) nanoneedles. These nanoneedles are used for the first time for highly sensitive determination of urea with the lowest detection limit (1 μM) ever reported for the non-enzymatic approach. The nanoneedles were grown through a simple and low-temperature aqueous chemical method. We characterized the structural and morphological properties of the NiCo₂O₄ nanoneedles by TEM, SEM, XPS and XRD. The bimetallic nickel cobalt oxide exhibits nanoneedle morphology, which results from the self-assembly of nanoparticles. The NiCo₂O₄ nanoneedles are exclusively composed of N

SUBMITTER: Amin S 

PROVIDER: S-EPMC9064170 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature