VISUAL DETECTION OF MERCURY IONS

摘要

Composite materials comprising a mesoflower structure, methods of preparing the composite material, and methods of detecting heavy metal ion using the composite material are described herein. In some embodiments, a silica-coated gold mesoflower with a layer of silver quantum clusters may be capable of detecting Hg2+ ions in a sample at zeptomolar concentrations.

主权项

1. A metallic composite material comprising a mesoflower structure having a metal core and a plurality of luminescent nanoparticles affixed to the mesoflower structure, wherein
the composite material has a first luminescent emission when heavy metal ions are not bound to the composite material; and wherein the composite material has a second luminescent emission when heavy metal ions are bound to the composite material, wherein the second luminescent emission is different from the first luminescent emission.