Research Article

Rapid and Selective Determination of Folate Receptor α with Sensitive Resonance Rayleigh Scattering Signal

Figure 1

RRS spectra for the interaction between antibody-modified Au NPs probe and FRα. Curve 1, original Au NPs; Curve 2, antibody-modified Au NPs probe; Curves 3–6, interaction between the probe and FRα. Concentrations: FRα (Curves 3–6, ng⋅mL−1), 2.50, 12.50, 25.00, and 37.50.