Enzyme-less amperometric sensor manufactured using a Nafion-LaNiO₃ nanocomposite for hydrogen peroxide.

ABSTRACT: In the present study, an enzyme-less amperometric sensor based on Nafion (NF) and a LaNiO₃ (LNO) nanocomposite was constructed for H₂O₂ detection. LNO from the perovskite group was mixed with NF as an effective solubilizing and stabilizing agent that was used as a novel modifier for modification of the glassy carbon electrode (GCE). The designed sensor showed a desirable electrocatalytic response toward H₂O₂ reduction. The calibration curve revealed two linear portions in the concentration ranges of 0.2-50 μM and 50-3240 μM, and the detection limit was 0.035 μM. The accuracy of the interference-free sensor was checked by recovery analysis in serum samples.

SUBMITTER: Ahmadi E 

PROVIDER: S-EPMC9054932 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature