Sandwich Immunoassays of Multicomponent Subtrace Pathogenic DNA Based on Magnetic Fluorescent Encoded Nanoparticles

Figure 2

DLS analysis of capture DNA-AFMFEM probe prepared at various volume ratios of capture DNA (200 nM) to 10 μL AFMFEM (3.6 mg/mL) (a); the adsorption spectra at 260 nm of the supernatant of the mixture with various volume ratios (DNA/AFMN) (b).

(a)

(b)