title: Isolation and Characterization of Monodisperse Core-Shell Nanoparticle Fractions.
abstract: Monodispersity is a key property to control the self-assembly of colloidal particles, and is typically reached after fine-tuning of the synthesis conditions. Monodisperse particle fractions can also be separated from polydisperse suspensions via ultracentrifugation. This paper demonstrates the capability of isolating and characterizing suspensions of core-shell iron oxide-polymer nanoparticles with extremely low polydispersity (p < 0.01) and, thus, of complementing nanoparticle synthetic approaches in the pursuit of highly monodisperse materials.
authors.affiliation: Laboratory of Food and Soft Matter, Department of Health Sciences and Technology, ETH Zurich , Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
authors.forename: Antoni
authors.initials: A
authors.lastname: Sánchez-Ferrer
authors.affiliation: Institute of Materials, Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland.
authors.forename: Randy P
authors.initials: RP
authors.lastname: Carney
authors.affiliation: Institute of Materials, Ecole Polytechnique Fédérale de Lausanne , CH-1015 Lausanne, Switzerland.
authors.forename: Francesco
authors.initials: F
authors.lastname: Stellacci
authors.affiliation: Laboratory of Food and Soft Matter, Department of Health Sciences and Technology, ETH Zurich , Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
authors.forename: Raffaele
authors.initials: R
authors.lastname: Mezzenga
authors.affiliation: Laboratory for Interface, Soft matter and Assembly, Department of Materials, ETH Zurich , Vladimir-Prelog-Weg 5, CH-8093 Zurich, Switzerland.
authors.forename: Lucio
authors.initials: L
authors.lastname: Isa
mesh_terms: D003102:Colloids / Q000737:chemistry / Q000302:isolation & purification; D005290:Ferric Compounds / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry
chemical_list: D003102:Colloids; D005290:Ferric Compounds; D011108:Polymers; C000499:ferric oxide