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. 2022 May 26;12(6):365. doi: 10.3390/bios12060365

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Fabrication of aptasensor on glassy carbon electrode (GCE). (a) Carbon nanotube deposition of on the surface of GCE; (b) Deposition of single-walled carbon nanotubes (SWCNTs) on GCE observed by (ESEM) environmental scanning electron microscope (representing a view from surface and lateral side). The surface view explains about the layer completely covering whole surface and the lateral view displays homogeneous height of the layer; (c) Potentiometric analysis; (d) Representation of an aptasensor for potentiometric analysis with specific aptamers functionalized with carboxylated SWCNTs and the correlation between the target bacteria and aptamer (Gustavo et al., 2013). Adapted with permission from Ref. [88]. Copyright 2013, Elsevier.