Figure 5 | Scientific Reports

Figure 5

From: Highly sensitive colorimetric detection of 17β-estradiol using split DNA aptamers immobilized on unmodified gold nanoparticles

Figure 5

Sensitivity for detecting 17β-estradiol with the original 76 mer aptamer or split P1 + P2 adsorbed onto AuNPs.

(A) Absorption spectra of the AuNP solutions with 76 mer aptamer adsorption under different 17β-estradiol concentrations. (B) Typical calibration curve for 17β-estradiol with the 76 mer aptamer adsorbed AuNPs. (C) Absorption spectra of the AuNP solutions with P1 + P2 adsorption under different 17β-estradiol concentrations. (D) Typical calibration curve for 17β-estradiol with P1 + P2 adsorbed AuNPs.

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