Bacterial stress responses to 1-megahertz pulsed ultrasound in the presence of microbubbles
Article Abstract:
A study was conducted to analyze the influence of megahertz frequency ultrasound on Escherichia coli. Members of a panel of stress-responsive biosensors were utilized to carry out the analysis. E. coli transformants were determined on Luria-Bertani agar while two kinds of microbubble caviation nuclei were used. Results indicated that stationary-phase cultures were resistant tot he effects of ultrasound treatment.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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Ellipsometric measurement of bacterial films at metal-electrolyte interfaces
Article Abstract:
The impact of bacterial attachment at polarized and nonpolarized metal surfaces was monitored by ellipsometric measurements. A strong inhibition of metal oxide film formation was observed which was attributed to the decrease in oxygen concentration due to the presence of bacteria. It was shown that the irreversible adhesion of bacteria to the surface can be monitored ellipsometrically.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1998
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