In-depth Literature Review of Functionalized Gold Nanoparticles for Detection of Metal Ions

Abstract

Understanding the significance of metal ions in various environmental samples has achieved a keen interest by researchers. Because these metal ions have great impact on food chain, health, ecosystem and environment of agricultural, aqueous and industrial populations. Many analytical techniques are used for the detection of metal ions in biological, environmental, pharmaceutical and industrial samples. But in last few decades, Gold nanoparticles have attracted the research groups as they provide immediate visual results by showing instant color change in the presence of target analyte. In this review study we have focused on research articles that provide applications of gold nanoparticles, functionalized with different capping agents for detection of metal ions and enlisted wide list of metals ions and capping agents as well that show selectivity for specific metal ion.