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. 2020 Dec 7;8:601216. doi: 10.3389/fbioe.2020.601216

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Copyright © 2020 Donati, Pomili, Boselli and Pompa.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Screening of the chemical conditions for the colorimetric assay. (A) Schematics of the reactions involved in the MGNP morphological changes in water. (B) LSPR λ_max evolution over time related to MGNP reaction with H₂O₂ (3 mM) in presence of optimized concentrations of different halogens (more info in Supplementary Material). Control (Ctrl) performed in absence of H₂O₂. (C) LSPR λ_max evolution of MGNPs exposed to Br^– (5 mM) with increasing H₂O₂ concentration (1–30 mM). (D) Absorption spectra related to the MGNP reshaping process for optimized reaction conditions (see Supplementary Material). All reactions were carried out at pH = 5.