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Stern-Volmer plot of the quenching of 2-aminopurine modified (CAG)8 with acrylamide (λex=307 nm, λem=370 nm): 1-AP (yellow, crosses), 2-AP (pink, solid triangles), 3-AP (cyan, inverted open triangles), 4-AP (black, open squares), 5-AP (green, open triangles), 6-AP (blue, rhombes), CAG-HP (red, solid circles), and (CAG)3 (dark green, open circles).
