Related Experiment Video
Updated: Mar 1, 2026

An Aptamer-based Sensor for Unchelated GadoliniumIII
Published on: January 9, 2017
A new Schiff base as a turn-off fluorescent sensor for Cu2+ and its photophysical properties
Pritam Torawane1, Suban K Sahoo2, Amulrao Borse1
1School of Chemical Sciences, North Maharashtra University, Jalgaon, Mississippi, India.
Abstract:
A new Schiff base receptor 1 was synthesized and its photophysical properties were investigated by absorption, emission and excitation techniques. Furthermore, its chromogenic and fluorogenic sensing abilities towards various metal ions were examined. Receptor 1 selectively detects Cu2+ ion through fluorescence quenching and detection was not inhibited in the presence of other metal ions. From fluorescence titration, the limit of detection of receptor 1 as a fluorescent 'turn-off' sensor for the analysis of Cu2+ was estimated to be 0.35 μM.
More Related Videos
Related Concept Videos
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Variables Affecting Phosphorescence and Fluorescence
Photoluminescence: Applications
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...

