Figure 5: (a) The mechanism of target DNA detection by a PGM via the sandwich hybridization assay using Capt-DNA coated magnetic beads (MBs) and DNA-invertase conjugates. (b) DNA sequences used for a proof-of-concept model DNA (Target-DNA) detection. (c) DNA sequences used for a hepatitis B virus (HBV) DNA fragment (Target- DNA-HBV) detection. (Reprinted with permission from Ref. [22]; Copyright 2012 American Chemical Society)