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. 2022 Sep 15;13:5423. doi: 10.1038/s41467-022-33094-2

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Optical image acquired after seeding a single cell at the center of a PEDOT:PSS sensing channel. b Time evolution of the cell adhesion monitored with an OECT and a microelectrode. c Current spectra acquired in the OECT (straight line) and microelectrode (dashed line) configuration before and after trypsinization. d Experimental OECT and microelectrode sensitivity. Error bars are obtained by averaging between n = 4 measurements acquired at different time. e Experimental OECT gain. Error bars are calculated from the experimental sensitivities by applying Eq. 5.