Skip to main content
. Author manuscript; available in PMC: 2015 Dec 15.
Published in final edited form as: Biosens Bioelectron. 2015 Jul 2;74:406–410. doi: 10.1016/j.bios.2015.06.069

Figure 4.

Figure 4

Electrochemical and optical readouts of a CT ELISA. On the right y-axis, peak current (Ip) vs. CT concentration is plotted for electrochemical detection by the nanocoaxial array (red). Peak currents were determined from the baseline normalized DPV signals as shown in Figure 3. On the left y-axis, absorbance at λ = 600 nm vs. CT concentration on a log scale for the conventional optical readout of an ELISA (blue). Limit of detection and log-linear dynamic range were determined for each readout method. Data represent two trials run on the same device. Error bars represent standard deviations, however many error bars are smaller than the size of the plotted data points. (color online).