Electrochemical and AFM Characterization of G-Quadruplex Electrochemical Biosensors and Applications

Figure 3

(a) AFM image of 0.3 μM d(TG₄T) in pH 7.0, in the presence of Na⁺ and K⁺ ions, at different incubation times; (b) representation of the d(TG₄T) single-strand and GQ electrochemical detection; (c) DP voltammograms baseline corrected in 3.0 μM d(TG⁴T) in pH 7.0: incubation time and K⁺ ions concentration dependence. [Adapted from [51] with permission.]

(a)

(b)

(c)