High-Affinity Detection of Alpha-Synuclein by Aptamer-Gold Conjugates on an Amine-Modified Dielectric Surface

Figure 4

(a) GNP-aptamer immobilization on the IDE sensing surface. The IDE surface was modified by APTES. The GNP-aptamer was immobilized, and the remaining surfaces were blocked by ethanolamine. (b) Alpha-synuclein detection on a GNP-aptamer-modified IDE sensing surface. A schematic representation is shown in the figure inset.

(a)

(b)