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Relationships between the logarithmic target concentration (log c) and the reaction ratios of aptamers-targets calculated from Δz shown in Figure 3. Symbols: ATP: blue dots, DA: red dots, and AMP: black dots. Curves represent the results of calculation assuming K1 = 1.58 × 1020 M–2, K2 = 1.00 × 10–11 for AMP, 1.58 × 10–13 for DA, and 3.98 × 10–14 M for ATP.
