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. 2016 Oct 6;6:34843. doi: 10.1038/srep34843

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a) The power spectral density of current noise, S_I, as a function of frequency. (b) The power spectral density of voltage noise, S_V, as a function of frequency. The noise was measured unbiased. The noise spectra are averages over 20 consecutive measurements. Different symbols indicate different electrode areas. The measurements were performed in 100 mM aqueous KCl solution. The solid lines are calculated from the measured impedance using Eqs [8 and 9].