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. 2022 Jun 25;12(7):454. doi: 10.3390/bios12070454

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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) Schematic illustration of the anti-NSE/amino-GQDs/Ag@Ti₃C₂T_x based fluorometric NSE detection. (B,C) FE-SEM images of Ag nanoparticles decorated Ti₃C₂T_x MXene at different magnifications. (D) Analytical performance of the anti-NSE/amino-GQDs/Ag@Ti₃C₂T_x based fluorescent biosensor toward NSE detection. (E) Graph showing the correlation between recovered fluorescence and NSE concentration, inset shows the corresponding calibration curve between recovered fluorescence and log NSE concentration in the range of 1 × 10⁻⁴–1.5 × 10³ ng/mL. (F) Selectivity of the proposed biosensor. (G) Control experiment for the amino-GQDs/Ag@Ti₃C₂T_x electrode. Reprinted with permission from Ref. [152]. Copyright © 2022 Elsevier.