The supramolecular assembly of tetraaqua-(pyridine-2,5-dicarboxylato)-copper(II) complex: crystal structure, TD-DFT approach, electronic spectra, and photoluminescence study

Unprecedented copper(ii) coordination induced nucleophilic cleavage of a quinoxaline heterocycle: structural and computational studies

This research work deals with the unprecedented copper(ii) induced nucleophilic cleavage of a quinoxaline heterocycle with spectroscopic, structural and computational studies.

Amino acids-incorporated nanoflowers with an intrinsic peroxidase-like activity

Functional molecules synthesized by self-assembly between inorganic salts and amino acids have attracted much attention in recent years. A simple method is reported here for fabricating hybrid organic–inorganic nanoflowers using copper (II) ions as the inorganic component and natural amino acids as the organic component. The results indicate that the interactions between amino acid and copper ions cause the growth of the nanoflowers composed by C, N, Cu, P and O elements. The Cu ions and Cu(AA)_n complexes containing Cu-O bond are present in the nanoflowers. The nanoflowers have flower-like porous structure dominated by the R groups of amino acids with high surface-to-volume ratios, which is beneficial for exerting its peroxidase-like activity depending on Fenton-like reaction mechanism with ABTS and Rhodamine B as the substrates. It is expected that the nanoflowers hold great promise as enzyme mimics for application in the field of biosensor, bioanalysis and biocatalysis.