Abstract
[Display omitted]
•The γ-Al2O3QDs were synthesized via hydrothermal process and characterized.•The γ-Al2O3QDs were employed for the sensing against urea at varied conc.•Effect of conc., potential, cyclic responses, impedance were studied.•Impedance of γ-Al2O3QDs/GCE were studied with varied urea concentrations.•The discussion related to influence with γ-Al2O3QDs for urea was explained.
Urea is a chemical compound utilized largely as an industrial and biological molecule and travels in liver to the kidney via bloodstream. For this views, the present work was design with γ-Al2O3QDs, which act as a sensor material for to detect the urea. The γ-Al2O3QDs were processed via solution method and characterized well. The γ-Al2O3QDs was utilize as a sensor material for their sensing efficiency with urea solution. The performance of γ-Al2O3QDs/GCE sensor was tested with different parameters such as effect of different concentration of urea (3.56, 7.815, 15.625, 31.25, 62.5, 125, 250, 500 and 1000 µM in PBS), effect of number of potentials (1 × 10-2 to 15 × 10-2 mV/s) were applied and checked in PBS. The ability to maintain a produced sensor process continuously cyclic response and electro chemical impedance (EI) were tested respectively. In addition to these, a real sample analysis was also conducted with γ-Al2O3QDs/GCE for tap water samples and analysed.