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Multifunctional Sensors for Successive Detection of Endogenous ONOO and Mitochondrial Viscosity: Discriminating Normal to Cancer Models. | LitMetric

Multifunctional Sensors for Successive Detection of Endogenous ONOO and Mitochondrial Viscosity: Discriminating Normal to Cancer Models.

Anal Chem

Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, and School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.

Published: October 2024

AI Article Synopsis

Article Abstract

Diagnosing cancer in its early stages can play an important role in prolonging the lifespan of patients, which demands the use of powerful tools to detect biomarkers accurately. However, since most fluorescent probes described for cancer diagnosis are limited to recognizing a single molecule, achieving the high accuracy criteria remains difficult. Here, sensor is constructed for the sequential detection of , ONOO, and viscosity. Initially, sensor detected and underwent an intramolecular charge transfer mechanism, resulting in the formation of and fluorescence quenching at 587 nm. Subsequently, the intermediate () monitored ONOO and reproduced sensor reversibly with fluorescence enhancement at 496 nm, showing concentration-related quantitative analysis. Similar sensing processes were observed in monitoring ONOO and viscosity by synthetically developed sensor . The proposed mechanisms of sensors and are verified through various characterizations (H NMR, HR-MS, and HPLC) and DFT calculations. Investigations on endogenous ONOO and mitochondrial viscosity in cancer (HeLa) and normal (NCM460) cells were conducted to distinguish cancerous cells from normal cells. We anticipated that sensor could effectively serve as a reliable bioanalytical reagent for cancer diagnosis at an earlier stage through sequential detection of two cancer markers, ONOO and mitochondrial viscosity, in living cells. Importantly, sensor has been employed for imaging ONOO in normal and liver injury mouse models and tissues, achieving outstanding results.

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Source
http://dx.doi.org/10.1021/acs.analchem.4c03245DOI Listing

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