A time-resolved ratiometric luminescent anthrax biomarker nanosensor based on an Ir(iii) complex-doped coordination polymer network?

Journal of Materials Chemistry B Pub Date: 2022-02-17 DOI: 10.1039/D1TB02652F

Abstract

Herein, an Ir(III) complex-doped coordination polymer network (Ir(III)@GMP–Eu3+) is fabricated for the first time for the ratiometric luminescent detection of the anthrax biomarker 2,6-dipicolinic acid (DPA) through the analysis of time-resolved emission spectra (TRES). The linear detection range is from 10 nM to 5 μM with a detection limit of 3.3 nM in aqueous solution. Attributed to the long lifetime of Ir(III)@GMP–Eu3+, the developed sensor exhibits an excellent DPA monitoring ability in a high-background solution through TRES.

Graphical abstract: A time-resolved ratiometric luminescent anthrax biomarker nanosensor based on an Ir(iii) complex-doped coordination polymer network
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