Beyond diffusion-limited aggregation kinetics in microparticle suspensions.
Published
Journal Article
Aggregation in nondiffusion limited colloidal particle suspensions follows a temporal power-law dependence that is consistent with classical diffusion limited cluster aggregation models; however, the dynamic scaling exponents observed in these systems are not adequately described by diffusion limited cluster aggregation models, which expect these scaling exponents to be constant over all experimental conditions. We show here that the dynamic scaling exponents for 10 microm particles increase with the particle concentration and the particle-particle free energy of interaction. We provide a semiquantitative explanation for the scaling behavior in terms of the long-ranged particle-particle interaction potential.
Full Text
Duke Authors
Cited Authors
- Erb, RM; Krebs, MD; Alsberg, E; Samanta, B; Rotello, VM; Yellen, BB
Published Date
- November 2, 2009
Published In
Volume / Issue
- 80 / 5 Pt 1
Start / End Page
- 051402 -
PubMed ID
- 20364980
Pubmed Central ID
- 20364980
Electronic International Standard Serial Number (EISSN)
- 1550-2376
International Standard Serial Number (ISSN)
- 1539-3755
Digital Object Identifier (DOI)
- 10.1103/physreve.80.051402
Language
- eng