Eco-Friendly Plasma Jet Synthesis of ZnO Nanoparticles for Sensitive Glucose Biosensing

Abstract

In this study, zinc oxide nanoparticles were prepared using an environmentally friendly and inexpensive method. Plasma jet technology is economical and clean due to the absence of chemicals involved in the nanoparticle preparation process. Argon gas was used to generate the plasma jet, which reacts with zinc oxide metal in an aqueous medium. Morphological examinations showed that the size of the resulting nanoparticles ranged from 15 to 27 nm, with a hexagonal (wurtzite) structure and a flower-like shape. The resulting particles exhibit high stability, as demonstrated in the zeta potential test. The resulting particles were tested to improve the effectiveness of a biosensor for glucose detection. The sensor showed a significant electrical response after adding glucose to the electrode surface, proving the effectiveness of the resulting materials in biomedical applications.