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. 2018 Oct 31;8:16109. doi: 10.1038/s41598-018-33972-0

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© The Author(s) 2018

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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Sensor’s ability to simultaneously detect Salmonella serotypes B and D were tested by flowing two equal quantities mixture of the two different Salmonella serogroups for (a) 100 Cells/ml, and (b) 20 Cells/ml concentration. The figure shows the impedance change response as a function of frequency. The impedance of Salmonella antibodies B and D were subtracted from the measured impedance after the exposure of the target molecules and plotted the impedance difference. Ab stands for antibody, Ag stands for antigen.