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Updated: Feb 28, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores

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Published on: August 19, 2013

Una nanofilm fluorescente de encendido ensamblada por interfaz para la detección altamente selectiva de vapor de

Ling Zhang¹, Zebiao Qiu¹, Ruijuan Wen¹

¹Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Provincial Key Laboratory of New Concept Sensors and Molecular Materials; School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, P. R. China. lingya.peng@snnu.edu.cn.

Chemical communications (Cambridge, England)

|February 27, 2026

Abstract:

Turn-on fluorescent nanofilms are attractive for gas sensing but rare, because protonation of donor-π-acceptor systems usually promotes charge separation and quenches emission. Here a gas-liquid interface-assembled DTH-DFP nanofilm shows protonation-induced blue-shifted turn-on fluorescence to trifluoroacetic acid (TFA) vapour, offering a transparent, fast, and sensitive platform (LOD 1.48 ppm).

Palabras clave:

nanofilm fluorescente detección de gases ácido trifluoroacético respuesta de encendido ICT modulada por protonación

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