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. 2022 Sep 20;12(10):778. doi: 10.3390/bios12100778

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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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(a) Differential pulse voltammograms recorded in PBS (dashed lines) and 300 µM H₂O₂ (solid lines) for various stages of electrode modification, Bare GCE (black); MWCNTs/GCE (blue); Au@TiO₂/GCE (green); Au@TiO₂/MWCNTs/GCE (red). (b) Histogram represents the corresponding change in current values (ΔI).