Darkfield

Darkfield

A technique of microscope examination in which light is directed at an oblique angle through the slide so that organisms look bright against a dark background.
Mentioned in: Syphilis
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Tenders are invited for Pentahead Microscope With Phase Contrast Polarizing And Darkfield Attachment With Photomicrography
The Logitech MX Master 2S and MX Anywhere 2S both feature improved Darkfield High Precision tracking.
Among his many innovations are the integration of medical and dental treatment, the use of darkfield microscopy as a diagnostic tool, new methods of enhancing detoxification and restoring immune strength, and highly successful treatment protocols for over a dozen disorders, including cancer, autoimmune disease, and Lyme.
The modular design is compatible with many accessories for clinical research, fluorescence, phase contrast, and darkfield applications.
4-nm pixel size) tomograms collected by darkfield electron microscopy, showed thickets of minute filaments filling the intercellular spaces at the junctions (Fig.
8,45,46) Caveats in C4d interpretation in kidney biopsies include antibody reactivity with tubular basement membranes, which can occasionally be difficult to distinguish from peritubular capillaries, especially with darkfield IF.
Darkfield microscopy or staining with acridine orange might be required to increase sensitivity.
Further microscopic investigations, combining brightfield and darkfield illuminations, showed a correlation between the asymmetry of the dark veins and the pattern of the associated fractures.
Treponema pallidum is a very sensitive bacterium, difficult to see other than by darkfield microscopy, direct fluorescent antibody testing, polymerase chain reaction (PCR).
Once processed, the charcoal fragments from the different samples were examined with an Olympus optical microscope with 50 x to 500 x magnification lenses, under reflected light brightfield and darkfield.
To count the total heterotrophic bacteria (THB) of sediment, water and shrimp, all the inoculated plates were incubated at 35[degrees]C for 48 h and colony forming units (cfu) were counted with a Quebec Darkfield Colony Counter (Leica Inc.