Work

A Vibration‐Induced Emission‐Based Ratiometric Sensor for Detection of Anions in Aqueous Solution

Year: 2025

Type: article

Abstract: Sensors that respond to anions via vibration-induced emission (VIE) have recently emerged as effective tools for discrimination between closely related carboxylate species in non-competitive, organic solvents. However, the utility of this sensing mechanism has not yet been demonstrated for anions in aqueous media. Here, we prepared two sensors, monoZnDPA-DPAC and ZnDPA-DPAC, with either one or two anion-binding motifs. These systems are capable of binding to anions in water. Dual emission via VIE is maintained in solvent mixtures of up to 70% water. ZnDPA-DPAC provides a unique, ratiometric response to citrate and phosphate, which was used for the accurate quantification of aqueous solutions of these anions.

Source: Chemistry - A European Journal

DOI: 10.1002/chem.202500610

Authors: Stephen M. Butler, Nikki A. Tzioumis, Katrina A. Jolliffe

Institutions: The University of Sydney, ARC Centre of Excellence for Innovations in Peptide and Protein Science

Language: English

Topic: Molecular Sensors and Ion Detection

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,640

Funder: Australian Research Council