The deposition of oral bacteria at the solid/liquid and solid/liquid/air interfaces

Leech, R.; Marsh, Phillip; Rutter, P.R.

doi:10.1016/0003-9969(79)90106-7

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…Solid-liquid-air interfaces arise when a solid object is partly immersed in a fluid, as with the legs of drilling platforms in the North Sea where corrosion is a problem. Recently, evidence has been presented showing that material, including some bacterial species, accumulates preferen tially at these interfaces (Leech et al 1979), particularly when the contact angle of the meniscus is less than 90 0 . Small hydrophobic particles, such as bacteria, with densities similar to that of the liquid in which they are suspended, will tend to collect at liquidair interfaces.…”

Section: Solid-liquid-air (mentioning

confidence: 99%

Surface-associated growth

Ellwood

Keevil

Marsh

et al. 1982

Phil. Trans. R. Soc. Lond. B

129

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In natural ecosystems, microbial activity is often associated with the presence of a surface, particularly in low-nutrient environments. The chemostat allows the study of such low-nutrient environments together with the precise control of other growth parameters. By using this system, enrichment cultures with inocula from two different river sources have been made. A more diverse community attached itself to surfaces placed in the chemostat when the cultures were carbon-limited than when the limiting nutrient was nitrogen. Further studies on a pseudomonad isolated from the carbon-limited enrichment cultures have shown that surface-associated organisms grow at approximately twice the rate of the same organism in the free surrounding medium. A hypothesis to explain this phenomenon based on the chemiosmotic theory is discussed.

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Section: Solid-liquid-air (mentioning

confidence: 99%

Surface-associated growth

Ellwood

Keevil

Marsh

et al. 1982

Phil. Trans. R. Soc. Lond. B

129

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Removal rates of bacterial cells from glass surfaces by fluid shear

Powell

Slater

1982

Biotech & Bioengineering

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A simple kinetic relationship is proposed to model the rate of removal of bacterial cells from solid surface by a shearing force. The theory is compared to experimentally obtained data for the removal of B. cereus cells from glass capillaries, the shear being imparted by a the flow of medium through the capillary. The critical shear stress required to sterilize the capillary wall is obtained experimentally for a number of industrial contaminant bacteria. The effect of settling time on critical shear stress is also investigated.

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Dental bacterial plaque

Laird

Grant

1983

International Journal of Biochemistry

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The deposition of oral bacteria at the solid/liquid and solid/liquid/air interfaces

Cited by 6 publications

References 19 publications

Surface-associated growth

Surface-associated growth

Removal rates of bacterial cells from glass surfaces by fluid shear

Dental bacterial plaque

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