Figure 5

Experimental measurement setup implemented as a therapeutic drug monitoring device for identification and measurement of digoxin as a case study. Note that part (i) shows a fluorescent image of immobilizing the thiolated-aptamer bioreceptors on the biosensor surface with: (ii). A magnified image of the top sides of the MEMS cantilevers which are coated by a thin gold layer and (iii). A magnified image of th e other side of the silicon cantilevers.