Sensing of the uranyl ion based on its complexation with bisphosphonate-capped gold nanoparticles

Nicolas Drogat (1) , Loïc Jauberty (1) , Vincent Chaleix (1) , Robert Granet (1) , Erwann Guenin (2) , Vincent Sol (1) , Vincent Gloaguen (1)

1 LCSN - Laboratoire de Chimie des Substances Naturelles
2 CSPBAT - Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques

We describe a sensing system that relies upon the formation of specific complexes between uranyl ion and bisphosphonate-capped gold nanoparticles. The ensuing concentration-dependent red-shift of surface plasmon resonance absorption allows the determination of uranyl ion concentration within the 1.5-15 ppm range.

Domaines: Chimie; Chimie organique

Nicolas Drogat, Loïc Jauberty, Vincent Chaleix, Robert Granet, Erwann Guenin, et al.. Sensing of the uranyl ion based on its complexation with bisphosphonate-capped gold nanoparticles. Materials Letters, 2014, 122, pp.208-211. ⟨10.1016/j.matlet.2014.01.097⟩. ⟨hal-00942457⟩