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. Author manuscript; available in PMC: 2010 Mar 15.
Published in final edited form as: Biosens Bioelectron. 2008 Nov 1;24(7):1995–2001. doi: 10.1016/j.bios.2008.10.012

Fig. 4.

Fig. 4

Results of a DNA target concentration series using the active CMOS biosensor array in which the hybridization extent x is plotted as a function of the solution target concentration. The dashed line shows the Langmuir fit to this equilibrium isotherm which yields a binding constant Ka of approximately 1×108 M−1. Error bars for the four lowest target concentrations indicate the standard deviation from three separate experiments.