Stable Oxide Nanoparticle Clusters Obtained by Complexation

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dc.creatorBerret, J. -F.
dc.creatorSehgal, A.
dc.creatorMorvan, M.
dc.creatorSandre, O.
dc.creatorVacher, A.
dc.creatorAiriau, M.
dc.date2006-08-08
dc.date.accessioned2026-07-07T08:28:15Z
dc.date.available2026-07-07T08:28:15Z
dc.descriptionWe report on the electrostatic complexation between polyelectrolyte-neutral copolymers and oppositely charged 6 nm-crystalline nanoparticles. For two different dispersions of oxide nanoparticles, the electrostatic complexation gives rise to the formation of stable nanoparticle clusters in the range 20 - 100 nm. It is found that inside the clusters, the particles are pasted together by the polyelectrolyte blocks adsorbed on their surface. Cryo-transmission electronic microscopy allows to visualize the clusters and to determine the probability distributions functions in size and in aggregation number. The comparison between light scattering and cryo-microscopy results suggests the existence of a polymer brush around the clusters.
dc.description7 pages, 4 figures, to appear in JCIS
dc.identifierhttps://arxiv.org/abs/cond-mat/0608189
dc.identifierhttp://arxiv.org/abs/cond-mat/0608189
dc.identifierJournal of Colloid and Interface Science 303 (2006) 315-318
dc.identifierdoi:10.1016/j.jcis.2006.07.025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137551
dc.subjectSoft Condensed Matter
dc.titleStable Oxide Nanoparticle Clusters Obtained by Complexation
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