Related Experiment Video
Updated: Jun 13, 2026

Quantifying the Binding Interactions Between Cu(II) and Peptide Residues in the Presence and Absence of Chromophores
Published on: April 5, 2022
Highly selective visual detection of Cu(II) utilizing intramolecular hydrogen bond-stabilized merocyanine in aqueous
Zhao-Qi Guo1, Wei-Qiang Chen, Xuan-Ming Duan
1Laboratory of Organic NanoPhotonics and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Beijing 100190, China.
Abstract:
A Cu(2+)-specific colorimetric sensor 1, which is stabilized by an intramolecular hydrogen bonding, was designed and developed. The color of 1 changes from purple to blue on addition of 1.0 muM Cu(2+) in aqueous buffer solution, which can be detected by the naked eye. The analytical detection limit for Cu(2+) by the naked eye is as low as 1.0 muM. The stoichiometry for 1 and Cu(2+) in complex is 2:1 in aqueous solution.
More Related Videos
12:52Iridium(III) Luminescent Probe for Detection of the Malarial Protein Biomarker Histidine Rich Protein-II
Published on: July 7, 2015
11:04Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
Published on: September 7, 2019