From colorimetric chemosensors to metal nanoparticles using two new tyrosine Schiff-base ligands for Cu2+ detection

Colorimetric sensing of copper(II) based on catalytic etching of gold nanoparticles

“…Under the optimized conditions, the Cu 2+ -specific probe exhibits high sensitivity towards Cu 2+ but also high selectivity over other possible interference ions. The method is also highlighted by its simplicity and rapidity as compared to many other nanoparticles-based colorimetric methods [32][33][34][35][36][37][38][39][40][41]. Compared with our former research [28], the present work is more timesaving and sensitive to naked-eyes.…”

Imine modified ZnO nanoparticles: a luminescent chemodosimeter for Al3+ and S2− ions based on ligand displacement reaction

“…Two well separated absorptions for HCQN linkage at 1637 and 1593 cm À1 clearly confirm the chelation of ZnO NPs with ligand molecules. 39,40 The corresponding splitting observed here indicates the presence of an imine moiety in a different chemical environment due to the fractional binding of the SB to ZnO NPs. The presence of characteristic ring vibrations of the pure ligand SB at 1570-1360 cm À1 is sensitive to complexation and get shifted to 1520-1373 cm À1 .…”

A TD-DFT Study of the Spectroscopic Properties of Hollow Silver Cluster

“…The electronic and structural properties of metal nanoparticles are an object of increasing interest due to their potential applications in a wide range of fields like: plasmonic, sensing, nanocatalysis, nanodevices and biomedicine [1][2][3][4]. For this reason, considerable efforts have been invested in developing synthetic methods to control the shape, stability and size of the metal clusters which are the parameters that dictate the applicability of the nanostructures.…”