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

Figure 3

Effect of pH condition on the modification of Au NPs with anti-FRα antibody. Concentrations: Au NPs, 3.0 nM; anti-FRα, 0.50 μg⋅mL⁻¹; NaCl, 0.67%; pH, 1.98, 2.87, 4.10, 5.02, 6.09, 7.00, 7.96, 8.95, 9.91, 10.88, and 11.92.