DLVO and steric contributions to bacterial deposition in media of different ionic strengths

DLVO and steric contributions to bacterial deposition in media of different ionic strengths

The deposition of eight bacterial strains on Teflon and glass in aqueous media with ionic strengths varying between 0.0001 and 1 M was measured and interpreted. Two types of interactions were considered: (1) those described by the DLVO theory, which comprise van der Waals attraction and electrostati...

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Veröffentlicht in:Colloids and surfaces, B, Biointerfaces B, Biointerfaces, 1999, Vol.14 (1), p.179-195
Hauptverfasser: Rijnaarts, Huub H.M., Norde, Willem, Lyklema, Johannes, Zehnder, Alexander J.B.
Format: Artikel
Sprache:eng
Schlagworte:
Bacterial adhesion
Cell surface macromolecules
Colloid stability
DLVO theory
Laboratorium voor Fysische chemie en Kolloïdkunde
Physical Chemistry and Colloid Science
Steric interactions
VLAG
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Zusammenfassung:The deposition of eight bacterial strains on Teflon and glass in aqueous media with ionic strengths varying between 0.0001 and 1 M was measured and interpreted. Two types of interactions were considered: (1) those described by the DLVO theory, which comprise van der Waals attraction and electrostatic repulsion (bacteria and surfaces are both negatively charged); and (2) steric interactions between the outer cell surface macromolecules and the substrata. As a trend, at low ionic strength (
ISSN:0927-7765
1873-4367
DOI:10.1016/S0927-7765(99)00035-1