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. Author manuscript; available in PMC: 2014 Mar 13.

Published in final edited form as: Langmuir. 2013 Mar 4;29(10):3320–3327. doi: 10.1021/la3049136

Nyquist plot obtained with an OTCE fabricated with 12 layers of protein adsorbed/pyrolyzed (•). Conditions: 1.0 mM K₃Fe(CN)₆ in 0.1 M NaH₂PO₄/Na₂HPO₄ buffer + 0.1 M KCl, pH = 7.4. Also included in the figure is the spectrum () simulated with the proposed equivalent circuit (insert).

Inline graphic — Nyquist plot obtained with an OTCE fabricated with 12 layers of protein adsorbed/pyrolyzed (•). Conditions: 1.0 mM K₃Fe(CN)₆ in 0.1 M NaH₂PO₄/Na₂HPO₄ buffer + 0.1 M KCl, pH = 7.4. Also included in the figure is the spectrum () simulated with the proposed equivalent circuit (insert).