Sorption of metal ions by poly(ethylene glycol)/β-CD hydrogels leads to gel-embedded metal nanoparticles

G. Ionita, G. Marinescu, C. Ilie, D.F. Anghel, D.K. Smith, V. Chechik

Research output: Contribution to journalArticlepeer-review


Inorganic nanoparticles can be embedded within gels by selectively preloading them with suitable molecular precursors followed by reduction or another suitable reaction. Here, we exploit the selective sorption properties of cross-linked β-cyclodextrin/poly(ethylene glycol) hydrogels, in analogy with polyurethane foams, to preconcentrate metal salts (HAuCl and K[Co(SCN)]) and subsequently generate gel-embedded metal nanoparticles (10-50 nm). The nanoparticles are shown to be immobilized within the gel network as a consequence of their large dimensions in comparison to the gel network pore size. We suggest this is a useful approach for the generalized synthesis of hybrid soft-hard nanomaterials.
Original languageEnglish
Pages (from-to)9173-9178
Issue number29
Publication statusPublished - 23 Jul 2013

Cite this