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. 2023 Aug 9;13(8):798. doi: 10.3390/bios13080798

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© 2023 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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Sequential DPV scans over time before (dashed trace) and after (solid traces) exposure to 200 µM XAN (10 mM PBS; pH 7) at GCEs modified with C6-MPC-doped HMTES xerogels (with XOx) either (A) with or (B) without the PU capping layer (scans every 10 min shown); (C) oxidative, anodic peak currents (I_p,a) measured from the previous DPV results (A,B) at +0.380 V for XOx generated UA and +0.725 V from injected XAN at C6-MPC-doped HMTES systems with (solid markers) and without (open markers) PU capping layers measured over the course of 1 h.