Rhodamine B derivatives-modified upconversion nanoparticles as a fluorescent turn-off-on sensor for the highly sensitive detection of Cu²⁺ and pyrophosphate.

ABSTRACT: Rhodamine B derivatives (RBP)-modified UCNPs (UCNPs@mSiO₂-RBP) were developed as a fluorescent turn-off-on sensor based on FRET and IFE to detect Cu²⁺ and pyrophosphate (PPi) with a wide linear response range (0-10 μM for Cu²⁺ and 5-35 μM for PPi, much wider than that reported previously) and high sensibility (117 nM for Cu²⁺ and 70 nM for PPi). The MTT experiments and the bioimaging experiments show its promising prospect in tissue imaging.

SUBMITTER: Meng Z 

PROVIDER: S-EPMC9089887 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature