Related Experiment Video
Updated: Apr 3, 2026

Preparation of Nanoparticles for ToF-SIMS and XPS Analysis
Published on: September 13, 2020
Isolation and Characterization of Monodisperse Core-Shell Nanoparticle Fractions
Antoni Sánchez-Ferrer1, Randy P Carney2, Francesco Stellacci2
1Laboratory of Food and Soft Matter, Department of Health Sciences and Technology, ETH Zurich , Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
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.
Related Concept Videos
Precipitate Formation and Particle Size Control
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
Subcellular Fractionation
Differential Centrifugation
Differential centrifugation is...
Overview Of Cell Separation And Isolation

