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. 2022 Sep 27;12(10):800. doi: 10.3390/bios12100800

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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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Electrochemical detection of cancer miRNAs. (a) SWV curves for miR-141: (1) match at the TiO₂ nanobelts modified electrode; match (2) and mismatch (3–10) at the Ho₂O₃-TiO₂ nanobelts modified electrodes; (b) Linear plot of anodic peak current (i_pa) versus concentration of perfect match miR-141 ranging from 0 to 5 nM at Ho₂O₃-TiO₂ nanobelts-modified electrodes.