Gold nanorods modified Eu: Y2O3 dispersed PVA film as a highly sensitive plasmon-enhanced luminescence probe for excellent and fast non-enzymatic detection of H2O2 and glucose

This article addresses a high sensitivity, non-invasive, and use-throw in nature type biocompatible Eu: Y2O3 dispersed PVA film with gold nanorod (AEYCP film) fluorescent sensing probe for non enzymatic detection of hydrogen peroxide (H2O2) and glucose (C6H12O6). The fluorescence spectra of the as-synthesized AEYCP fluorescent film consist of some sharp emission (most intense peak at-611 nm, owing to the D-5(0)-F-7(2) transition) which corresponds to electrical and magnetic dipole transitions. In the presence of H2O2 and glucose, the fluorescence intensity of the AEYCP film gets quenched due to the reduction of electron-hole pair, at the Eu center. The AEYCP film shows excellent fluorescence quenching in the presence of H2O2 at similar to 500 nM (with a low detection limit of 1.80 x 10(-9) M) and glucose (with a low detection limit 1.60 x 10(-6) M). Herein, we envision that our result provides an insight for the synthesis of rare earth metal doped oxide flexible,non-enzyme mimicking fluorescent probe for different biomedical applications.