Robust Discrimination between Single Gold Nanoparticles and Their Dimers in Aqueous Solution for Ultrasensitive Homogeneous Bioassays

Figure 1

(a) Dimerization of AuNP-oligonucleotide conjugates. (b) Electrophoresis and transmission electron micrographs of monomer, dimer, and trimer particles.

(a)

(b)