Please use this identifier to cite or link to this item:
Title: Colloidal clustering of protein-coated microspheres in evaporating droplets
Authors: Miao, Yuanhua.
Liu, Yanhong.
Hu, Lanying.
Helseth, Lars Egil.
Issue Date: 2012
Source: Miao, Y., Liu, Y., Hu, L., & Helseth, L. E. (2012). Colloidal clustering of protein-coated microspheres in evaporating droplets. Soft Matter, 8(7), 2267-2273.
Series/Report no.: Soft matter
Abstract: Colloidal clustering in an evaporating aqueous droplet was investigated by means of optical microscopy. The colloids were negatively charged paramagnetic polystyrene microspheres coated with a monolayer of the protein streptavidin. The dynamical process of the colloidal clustering was characterized quantitatively by the radial distribution function. The experimental results demonstrate that the clustering process goes through stages wherein the cluster is compactified and a colloidal crystal is formed at its core. Moreover, by adjusting the external magnetic field acting on the magnetic colloids, we could investigate the influence of the repulsive dipolar forces on the colloidal cluster dynamics and the equilibrium distance between the colloids in the cluster.
ISSN: 1744-683X
DOI: 10.1039/c2sm06777c
Rights: © 2012 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.