Dual colorimetric sensing of mercury and iodide ions by steroidal 1,2,3-triazole-stabilized silver nanoparticles

Abstract

Bile acid-based 1,2,3-triazole ligands have been synthesized, which show excellent ability to stabilize silver nanoparticles. These AgNPs have been found to exhibit highly selective dual colorimetric sensing of Hg2+ and I− ions.

Photoinduced triplet-state electron transfer of platinum porphyrin: a one-step direct method for sensing iodide with an unprecedented detection limit

“…[12][13][14] In addition to its environmental and biological importance, iodide is a key component of a redox couple oen used in solar-energyharvesting systems. 15 Various methods can be used for the determination of iodide, 16 including photoluminescence, [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] colorimetric detection, [33][34][35][36][37] time-resolved absorption techniques, 38 mass spectrometry, [39][40][41] chromatography, 42 Raman scattering 43,44 and electrochemical proling. 45,46 However, because of its large size and weakly basic nature, the binding capacity of iodide is the weakest among the halide ions.…”

Gel–based Controlled Synthesis of Silver Nanoparticles and Their Applications in Catalysis, Sensing and Environmental Remediation

“…Of particular interest are silver nanoparticles (AgNPs) with a wide range of applications in catalysis and metal ion sensing . AgNPs by virtue of their greater ion binding affinity can results in fast colorimetric detection of ions, especially the toxic metals which are of significant current interest in the area of environmental remediation and waste water treatment.…”