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. 2016 Feb 18;11:95. doi: 10.1186/s11671-016-1292-1

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© Mohiuddin et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 5 — a Cyclic voltammograms of PNPG (red) and PNPG + enzyme (blue) after 20 min in presence of 0.1 M phosphate buffer at pH 6.8 on the SP-CNT electrode, (a ₁) decreasing attached p-NP oxidation peak, (a ₂) growing released p-NP oxidation peak, (a ₃) growing released p-NP reduction peak, (a ₄) decreasing attached p-NP reduction peak; b decreasing and growing oxidation peak currents of the attached and the released p-NP; and c decreasing and growing reduction peak currents of the attached and the released p-NP