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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. 1.

Fig. 1

Electrochemical quantitation of ferrocene-labeled DNA targets hybridized to probes on the surface of a working electrode using cyclic voltammetry. A potentiostat applies vin to the WE interface and measures the redox current iWE using an integrator and an ADC. The shape of iWE as a function of vin is characteristic of the response from an electroactive surface species.