Microscope Observations of O157

When an outbreak of food poisoning occurs, an approximate identification of the causal factor or causative organism is extremely important. A high-resolution scanning probe microscope permits easy observations of bacteria in air.

Bacteria were observed using a scanning probe microscope.

  • The picture to the left shows enterohemorrhagic E. coli O157: H7. The rod-shaped bacteria and flagella are clearly visible.
  • The picture to the right shows bacillus cereus, which causes food poisoning. The oval spores (diameter: approx. 2.3 µm; minor axis: approx. 1.7 µm) and the approximately 7 µm-long trophozoite cells can be seen.
    Detailed data are available in the SPM Data Room.
  • 1-13 Observation of Enterohemorrhagic E. coli O157:H7
  • 1-18 Observation of Bacillus cereus
Microscope Observations of O157

SPM-9700 Scanning Probe Microscope

SPM-9700 Scanning Probe Microscope

This instrument traces the contours of the sample's surface with a needle-like sharp tip to capture the surface topography in three dimensions and acquire information on the surface's physical properties.

For Research Use Only. Not for use in diagnostic procedures.

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