What is it about?

The detection of sulfite in white wine is possible using a fluorescent dye based on the popular BODIPY unit. The sensor also responds to long term exposure of a water solution to sulfite by a secondary fluorescence response.

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Why is it important?

The secondary fluorescence response of our probe to sulfite is rather unique and opens the door to producing a new kind of detection system for monitoring early and late exposure of water to the anion.


The work arose from a lucky discovery of a reaction not observed previously at a julolidine group.

Professor Andrew Christopher Benniston
Newcastle University

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This page is a summary of: An unprecedented oxidised julolidine-BODIPY conjugate and its application in real-time ratiometric fluorescence sensing of sulfite, Organic & Biomolecular Chemistry, January 2019, Royal Society of Chemistry,
DOI: 10.1039/c9ob01316d.
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