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- Title
A total-synthesis framework for the construction of high-order colloidal hybrid nanoparticles.
- Authors
Buck, Matthew R.; Bondi, James F.; Schaak, Raymond E.
- Abstract
Colloidal hybrid nanoparticles contain multiple nanoscale domains fused together by solid-state interfaces. They represent an emerging class of multifunctional lab-on-a-particle architectures that underpin future advances in solar energy conversion, fuel-cell catalysis, medical imaging and therapy, and electronics. The complexity of these 'artificial molecules' is limited ultimately by the lack of a mechanism-driven design framework. Here, we show that known chemical reactions can be applied in a predictable and stepwise manner to build complex hybrid nanoparticle architectures that include M-Pt-Fe3O4 (M = Au, Ag, Ni, Pd) heterotrimers, MxS-Au-Pt-Fe3O4 (M = Pb, Cu) heterotetramers and higher-order oligomers based on the heterotrimeric Au-Pt-Fe3O4 building block. This synthetic framework conceptually mimics the total-synthesis approach used by chemists to construct complex organic molecules. The reaction toolkit applies solid-state nanoparticle analogues of chemoselective reactions, regiospecificity, coupling reactions and molecular substituent effects to the construction of exceptionally complex hybrid nanoparticle oligomers.
- Subjects
NANOPARTICLES; COLLOIDS; SOLAR energy; ENERGY conservation; FUEL cells; OLIGOMERS; LEAD compounds; COPPER compounds
- Publication
Nature Chemistry, 2012, Vol 4, Issue 1, p37
- ISSN
1755-4330
- Publication type
Article
- DOI
10.1038/nchem.1195