development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore. the proposed method is linear in concentration range of 1.0 × 10-1-3×10-5 m of glucose and has detection limit of 1.25 × 10-8 m. the results show that the glucose oxidase/qds system to be a promising glucose-biosensing system.