Journal
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
Volume 17, Issue 2, Pages 97-105Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.cocis.2011.08.009
Keywords
Inorganic nanoparticles; Ion-containing polymers; Electrostatic complexation; Layer-by-layer; Capsules
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Funding
- Rhodia (France)
- Agence Nationale de la Recherche [BLAN07-3_206866, ANR-09-NANO-P200-36]
- European Community [214137 (FP7-NMP-2007-SMALL-1)]
- Region Ile-de-France
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Engineered nanoparticles made from noble metals, rare-earth oxides or semiconductors are emerging as the central constituents of future nanotech developments. In this review, a survey of the complexing strategies between nanoparticles and oppositely charged polyelectrolytes developed during the last three years and based on electrostatic interactions is presented. These strategies include the one-step synthesis of stable and functionalized nanoparticles, the one- and multilayer coating of individual nano-objects, the controlled clustering of particles and the generation of capsules and thin films with superior functionalities. Among the formulation processes reported, three main classes are identified: the direct mixing route, the desalting transition pathway and the well-known layer by layer method. Finally, some latter developments, trends and applications of electrostatic assemblies in materials science and nanomedicine are highlighted. (C) 2011 Elsevier Ltd. All rights reserved.
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