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. Author manuscript; available in PMC: 2011 Dec 15.
Published in final edited form as: Anal Chem. 2010 Nov 16;82(24):10158–10163. doi: 10.1021/ac102277p

Figure 4.

Figure 4

Detection of Lys in homogeneous solution by steady-state fluorescence. 200 nM aptamer/competitor response to different concentrations of Lys in buffer (50 mM Tris, 100 mM NaCl, pH 7.4) at 25 °C. With increase of Lys concentrations from 0 to 1000 μM, the excimer peak (495 nm) increases and the monomer peaks (388 nm and 408 nm) decrease.