Figure 5

Fluorescent properties of INV-NAuCs-Om. (a) Schematic representation of a fluorescent sucrose-sensing mechanism using nanoparticles decorated invertase-onion membrane modified microplate sensor. (b) Quenching signal response of sucrose on INV-NAuCs-Om. (c) Fluorescence spectra of Au-Particles-INV-onion membrane in presence of various concentrations of sucrose (0.2x10⁻⁸ to 4.25x10⁻⁸ M). Inset I: FL intensity as function of Sucrose concentration. Inset II: Calibration plot using ΔFL vs. sucrose concentration (0.2x10⁻⁸ to 4.25x10⁻⁸ M).