Skip to main content
. Author manuscript; available in PMC: 2018 Aug 11.
Published in final edited form as: ACS Appl Mater Interfaces. 2018 Jul 6;10(28):23490–23500. doi: 10.1021/acsami.8b02837

Figure 5.

Figure 5.

(A) Representative fluorescence image at an emission wavelength of 605 nm for AlexaFluor® 546 (excitation at 556 nm) to visualize different concentrations of dopamine aptamer binding to each of three pre-functionalized thiols (i.e., L-DOPA, L-DOPS, and L-5-HTP). (B) A false-colored perspective plot of the fluorescence image shown in (A). In (C), on-substrate binding affinities were obtained simultaneously for all three targets by plotting fluorescence intensities at increasing aptamer concentrations. Error bars represent standard errors of the means for N=4 substrates and are too small to be visualized in most cases.