Related Experiment Video
Updated: Jun 11, 2025
08:35
Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
Published on: December 16, 2019
9.2K
Wavelength-Based luminescence sensing via Turn-On responses for acid detection in complex Environments
Siwei Sun1, Min Liu1, Xue-Ting Jin1
1School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China.
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|September 27, 2024
Summary
This study introduces a new fluorescence-based method for detecting acids. The donor-acceptor complex Fe-L enables visual color changes for intuitive and convenient acid detection.
Area of Science:
- Analytical Chemistry
- Materials Science
- Chemical Sensing
Background:
- Current acid detection methods have limitations.
- Fluorescence detection offers potential improvements.
- Wavelength-based luminescence sensing for acids is underexplored.
Purpose of the Study:
- To develop a novel method for acid detection using fluorescence.
- To achieve turn-on response and wavelength-based luminescence sensing for acids.
- To enable visual detection of acid concentration through color changes.
Main Methods:
- Utilized a donor-acceptor complex, Fe-L.
- Investigated fluorescence discoloration in the presence of various acids.
- Correlated fluorescence enhancement and color change with acid concentration.
Main Results:
- Fe-L complex demonstrated a turn-on fluorescence response.
- Significant fluorescence discoloration observed with inorganic and organic acids, including benzoic acids.
- Simultaneous fluorescence enhancement and color change with varying acid concentrations.
Conclusions:
- The Fe-L complex provides an intuitive and convenient method for acid detection.
- Wavelength-based luminescence sensing enables visual identification of acids.
- This research lays the groundwork for developing advanced acid detection technologies.
