New colorimetric rhodamine–helicene “OFF–ON” fluorescence sensor based on FRET for quantitative and qualitative Hg 2+ determination

New Journal of Chemistry 2026

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Authors: Sopida Thavornpradit, Arthorn Loisruangsin, Nirawit Kaewnok, Watthanachai Buaban, Krit Setthakarn, Natdhera Sanmanee, Thanasat Sooksimuang, Nantanit Wanichacheva
DOI: 10.1039/d5nj03667d
Cited by: 0
References: 79

Abstract

A fluorescent sensor (DGM), integrating rhodamine 6G and [5]helicene, enables highly selective Hg²⁺ detection with a 21 ppb limit observed as a distinct colourimetric change. Its sensitivity and on-site applicability make it ideal for monitoring mercury in water samples.

Fields of Study & Subjects

Molecular Sensors and Ion Detection Synthesis and Properties of Aromatic Compounds Photochromic and Fluorescence Chemistry

Publication details

Journal / source
New Journal of Chemistry
Volume
50
Issue
4
Pages
1787–1795
Publication date
1 January 2026
Language
EN