Journal
COLLOIDS AND SURFACES B-BIOINTERFACES
Volume 92, Issue -, Pages 74-83Publisher
ELSEVIER
DOI: 10.1016/j.colsurfb.2011.11.028
Keywords
Phi X174; MS2; Clay minerals; KGa-1b; STx-1b; Virus attachment; Colloid stability; Extended DLVO; Hydrophobic force
Funding
- European Union
- Greek national funds
- Heracleitus II. Investing in knowledge society through the European Social Fund
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This study aims to gain insights into the interaction of virus particles with clay colloids. Bacteriophages MS2 and Phi X174 were used as model viruses and kaolinite (KGa-1b) and montmorillonite (STx-1b) as model colloids. The experimental data obtained from batch experiments of MS2 and Phi X174 attachment onto KGa-1b and STx-1b suggested that virus attachment is adequately described by the Freundlich isotherm equation. Both MS2 and Phi X174 were attached in greater amounts onto KGa-1b than STx-1b with MS2 having greater affinity than Phi X174 for both clays. Furthermore, extended-DLVO interaction energy calculations explained that the attachment of viruses onto model clay colloids was primarily caused by hydrophobic interaction. The theoretical and experimental results of this study were found to be in good agreement with previous findings. (C) 2011 Elsevier B.V. All rights reserved.
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