Viologen-templated arrays of cucurbit[7]uril-modified iron-oxide nanoparticles

Farah Benyettou, Katia Nchimi- Nono, Mustapha Jouiad, Yoann Lalatonne, Irena Milosevic, Laurence Motte, John Carl Olsen, NA'Il Saleh, Ali Trabolsi

Research output: Contribution to journalArticlepeer-review


Magnetic and fluorescent assemblies of iron-oxide nanoparticles (NPs) were constructed by threading a violo-gen-based ditopic ligand, DPV2+ , into the cavity of cucurbituril (CB[7]) macrocycles adsorbed on the surface of the NPs. Evidence for the formation of 1:2 inclusion complexes that involve DPV2+ and two CB[7] macrocycles was first obtained in solution by 1H NMR and emission spectroscopy. DPV2+ was found to induce self-assembly of nanoparticle arrays (DPV2 + ⊂CB[7]NPs) by bridging CB[7] molecules on different NPs. The resulting viologen-crosslinked iron-oxide nanoparticles exhibited increased saturation magnetization and emission properties. This facile supramolecular approach to NP self-assembly provides a platform for the synthesis of smart and innovative materials that can achieve a high degree of functionality and complexity and that are needed for a wide range of applications.

Original languageEnglish (US)
Pages (from-to)4607-4613
Number of pages7
JournalChemistry - A European Journal
Issue number12
StatePublished - Mar 16 2015


  • Microporosity
  • Self-assembly
  • Solid-state fluorescence
  • Superparamagnetic nanoparticles
  • Surface modification

ASJC Scopus subject areas

  • General Chemistry
  • Catalysis
  • Organic Chemistry


Dive into the research topics of 'Viologen-templated arrays of cucurbit[7]uril-modified iron-oxide nanoparticles'. Together they form a unique fingerprint.

Cite this