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Date/Time Thumbnail Dimensions User Comment; current: 12:22, 6 April 2014: 3 min 52 s, 480 × 360 (7.38 MB): Jacopo Werther == {{int:filedesc}} == {{Information |Description = Step-by-step video and audio instructions on how to prepare a wet mount specimen of eukaryotic animal cells; specifically Human epithelial cells from the inside of the cheek.
S. cerevisiae cells imaged by DIC microscopy A quantitative phase-contrast microscopy image of cells in culture. The height and color of an image point correspond to the optical thickness, which only depends on the object's thickness and the relative refractive index. The volume of an object can thus be determined when the difference in ...
In some cases, cells may be grown directly on a slide. For samples of loose cells (as with a blood smear or a pap smear) the sample can be directly applied to a slide. For larger pieces of tissue, thin sections (slices) are made using a microtome; these slices can then be mounted and inspected.
The eukaryotic cell seems to have evolved from a symbiotic community of prokaryotic cells. DNA-bearing organelles like mitochondria and chloroplasts are remnants of ancient symbiotic oxygen-breathing bacteria and cyanobacteria, respectively, where at least part of the rest of the cell may have been derived from an ancestral archaean prokaryote ...
Nucleus of a female amniotic fluid cell. Top: Both X-chromosome territories are detected by FISH. Shown is a single optical section made with a confocal microscope. Bottom: Same nucleus stained with DAPI and recorded with a CCD camera. The Barr body is indicated by the arrow, it identifies the inactive X (Xi).
A live-cell microscope. Live-cell microscopes are generally inverted. To keep cells alive during observation, the microscopes are commonly enclosed in a micro cell incubator (the transparent box). Live-cell imaging is the study of living cells using time-lapse microscopy.
The shape and texture in each individual grain is made visible through the microscope. [7] As the microscopic scale covers any object that cannot be seen by the naked eye, yet is visible under a microscope, the range of objects that fall under this scale can be as small as an atom, visible underneath a transmission electron microscope. [8]
Binnig invented [6] the atomic force microscope and the first experimental implementation was made by Binnig, Quate and Gerber in 1986. [8] The first commercially available atomic force microscope was introduced in 1989. The AFM is one of the foremost tools for imaging, measuring, and manipulating matter at the nanoscale.