It depends on the type of biofilm, what surface the biofilm is on, and what information you want to get by looking at the biofilm under a microscope.
If you just want to look at how much of a surface is covered by a biofilm, you can use normal light trasmission microscopy (as long as the surface is transparent e.g. glass). Alternatively you could use epifluorescent microscopy in combination with a fluorescent stain.
If you want to look at the structure of the biofilm, confocal laser scanning microscopy is probably the best as you can get a 3D image.
Other useful types of microscopy include phase contrast and DIC, which allow you to look at the biofilm without staining it first.
scanning electron microscope
Scanning electron microscope
SEM
microbiology
scanning electron microscope
transmission electron microscope
By scraping the leaf surface and examining under the microscope.
It uses diamond atom as probe to scan the surface contours of biological specimens.
Pia Mater
Staphlococci are bacteria with a round shape when viewed under a microscope. There are many types of staph bacteria. All bacteria have protein walls which are have a unique molecular structure to the type of bacterium, so only the correct antibody can fit this structure and destroy the bacterium cell.
Scanning electron microscope.
Scanning electron microscope
In what directions do images move under a microscope?
SEM
A Reflecting light microscope. An electron microscope.
Stereo Microscope
An atomic force microscope
Over one billion bacteria can contaminate the surface of a fomite. Bacteria can contaminate any kind of surface in seconds.