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Microscopy Basics
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Light Microscopy
Magnifies up to 1000x ; resolve structures around 200 nm apart ; Brightfield, Phase contrast, and Fluorescence are common techniques
Brightfield
To view pigmented or stained specimens (High Contrast)
Phase Contrast
To view non-pigmented (low contrast) specimens
Fluorescence
To view cells/ structures labeled with a fluorochrome
Electron Microscopy
Magnifies up to 500,000x; can resolve structures, estimated 0.1 nm apart; including Scanning, Transmission
Scanning EM
Scans the exterior of a specimen to reveal the topography and fine details; requires processing of the specimen
Transmission EM
Used to view the internal structures of (embedded, sliced, stained) specimens or view small specimens