This research was supported by the Helen and Martin Kimmel Center for Molecular Design and the Minerva Foundation. Cryo-TEM measurements were performed by Dr. E. Kesselman (Technion). We thank Dr. R. Popovich-Biro (WIS) for the EDS measurements and Dr. R. Klajn (WIS) for the OA-capped γ-Fe2O3 NPs. M.E.v.d.B. is the incumbent of the Bruce A. Pearlman Professorial Chair in Synthetic Organic Chemistry.
Integrated and Segregated Au/γ-Fe2O3 Binary Nanoparticle Assemblies†
Article first published online: 7 NOV 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 51, Issue 49, pages 12268–12271, December 3, 2012
How to Cite
Boterashvili, M., Lahav, M., Shirman, T., Freeman, D. and van der Boom, M. E. (2012), Integrated and Segregated Au/γ-Fe2O3 Binary Nanoparticle Assemblies . Angew. Chem. Int. Ed., 51: 12268–12271. doi: 10.1002/anie.201207469
- Issue published online: 28 NOV 2012
- Article first published online: 7 NOV 2012
- Manuscript Received: 15 SEP 2012
- Helen and Martin Kimmel Center for Molecular Design
- Minerva Foundation
- iron oxide;
- nanoparticle assembly;
To mix or not to mix: Integrated (left) and segregated (right) assemblies were obtained upon treating functionalized γ-Fe2O3 nanoparticles (NPs) with AuNPs. Their binary nature is controlled by the capping layer of the γ-Fe2O3 NPs and the AuNP initial aggregation state. The segregated assembly formation is induced by AuNP aggregates which act as nucleation sites for growth of the γ-Fe2O3 NP domains.