A bi-ligand co-functionalized gold nanoparticles-based calcium ion probe and its application to the detection of calcium ions in serum

Abstract

In this study, the use of bi-ligand co-functionalized gold nanoparticles in a highly selective and sensitive colorimetric probe for Ca 2+ ions is demonstrated and this probe also determined the concentrations of Ca 2+ ions in serum samples. © 2012 The Royal Society of Chemistry.