Coordinated Dispersion and Aggregation of Gold Nanorod in Aptamer-Mediated Gestational Hypertension Analysis

Figure 7

(a) Linear relationship between the absorption maximum and the concentration of the cortisol. 0 to 1 mg/mL of cortisol were used to detect by using GNR-aptamer conjugates. (b) Specific detection of cortisol was carried out with two different control hormones (norepinephrine (C1) and progesterone (C2)). The aptamers interacted with only cortisol, and the color of the GNR was changed to purple due to the aggregation.

(a)

(b)