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Rhodamine B Derivatives-modified Upconversion Nanoparticles As a Fluorescent Turn-off-on Sensor for the Highly Sensitive Detection of Cu and Pyrophosphate

Overview
Journal RSC Adv
Specialty Chemistry
Date 2022 May 13
PMID 35558582
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Abstract

Rhodamine B derivatives (RBP)-modified UCNPs (UCNPs@mSiO-RBP) were developed as a fluorescent turn-off-on sensor based on FRET and IFE to detect Cu and pyrophosphate (PPi) with a wide linear response range (0-10 μM for Cu and 5-35 μM for PPi, much wider than that reported previously) and high sensibility (117 nM for Cu and 70 nM for PPi). The MTT experiments and the bioimaging experiments show its promising prospect in tissue imaging.

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