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. 2023 Aug 27;28(17):6265. doi: 10.3390/molecules28176265

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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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Scheme 5 — Sensing mechanism based on ESIPT process of fluorescent probe 27 for discriminating live (orange) and dead cells (blue) in dual color mode [34,37]. Reprinted with permission from [37]. Copyright © 2018 American Chemical Society.