Fig. 3. Schematic for aDNA sensor based on quantum do labeled hybridization assay. The capture probe ismodifiedwith biotin and reporterwith Cy5 fluorescent
label (a). The capture and reporter probe hybridizewith target DNA. The complex binds to streptavidin modified quantum dots. The complex is illuminatedwith
light (488 nm) that induces photoluminescence and FRETof theQDand Cy5 respectively (b). The differentwavelength emitted light is detected
via a microfluid-type device with illumination using an argon laser (488 nm) using duel photodiodes (c) (Reprintedwith permission from