Journal article
Cooperativity in the adsorption of magnetic colloidal particles
Journal of colloid and interface science, v 297(2), pp 407-411
2006
PMID: 16310800
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
In this paper we investigate the adsorption of magnetic particles onto magnetically patterned substrates. We find that the adsorption process is cooperative, where the probability of adsorption decreases with increasing substrate occupancy (namely, density of adsorbed particles). The effect of cooperativity can be accounted for by a simple modification of the adsorption probability as manifested by the binomial distribution. The negative cooperativity found in the magnetic particle adsorption is not due to direct repulsion between particles, but to screening of the surface's magnetic field by previously adsorbed particles. Thus, the adsorption of magnetic colloids on magnetic substrates is a self-limiting process.
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Details
- Title
- Cooperativity in the adsorption of magnetic colloidal particles
- Creators
- K Komaee - Department of Chemical and Biological Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104, USAB Yellen - Department of Mechanical Engineering and Materials Science, Duke University, Box 90300, Hudson Hall, Durham, NC 27708-0300, USAG Friedman - Department of Electrical and Computer Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104, USAN Dan - Department of Chemical and Biological Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104, USA
- Publication Details
- Journal of colloid and interface science, v 297(2), pp 407-411
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000237529000003
- Scopus ID
- 2-s2.0-33646051546
- Other Identifier
- 991014877825104721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical