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

Figure 4

Effect of antibody concentration on the modification of Au NPs with anti-FRα antibody. Concentrations: Au NPs, 3.0 nM; pH, 7.00; NaCl, 0.67%; anti-FRα (μg⋅mL⁻¹), 0.10, 0.20, 0.30, 0.40, 0.50, 0.60, and 0.70.