A facile synthesis of the nickel oxide nanoparticles for the effective electrochemical detection of hydrogen peroxide in contact lens solution

Abstract

Hydrogen peroxide (H2O2) was secreted in the mitochondria during the cell production. Moreover, H2O2 was act as a key member for reactive oxidative species. The imbalance of reactive oxidative species causes various health risks. Therefore, it is important to develop a device to detect H2O2. Thus, nickel oxide nanoparticles (NiO NPs) were synthesized using the simple co-precipitation method for the detection of H2O2. The morphological and chemical composition of the as prepared NiO NPs was characterized by using FESEM and XRD. Herein, we reported that the synthesized NiO NPs modified GCE shows a selective detection towards the H2O2. Moreover, the NiO NPs/GCE has displayed wider covering range of 8.6 nM to 433.24μM with the detection limit up to 4.28nM. The NiO NPs/GCE has successfully examined with contact lens cleaning solution for the practical application for detection of H2O2, which shows the appreciable found and recovery.