The image of a walnut pollen in the scanning electron microscope.
This small pollen is not even half a millimetre in size: it’s diameter is approx. 40 µm.
Common Applications:Since pollen is very resistant to decomposition, pollen analyses can Read more
An inconspicuous green cress leaflet reveals many interesting openings on the leaf underside within a scanning electron microscope: the stomata. These pores control the rate of gas exchange. The diameter of the shown stoma is about 8 µm.The displayed Read more
Beard hairs are usually thicker than hairs on the head: while the diameters of head hair range from 0.04 to 0.12 mm, the diameters of beard hair are on average twice as big: 0.09-0.23 mm.However, the structure of beard Read more
Freeze-dried blueberry fruit pieces in the microscope.The displayed magnifications are 20- & 60-fold in the light microscope (LM) and 170- & 1400-fold in the scanning electron microscope (SEM).
The accompanying zoom video:https://www.youtube.com/watch?v=YkYbVZXB4xc
Quality and taste of a food-powder Read more
This overview image shows freeze-dried mango fruit pieces at different magnifications. 20x and 60x in a light microscope (LM). 670x and 2700x in a scanning electron microscope (SEM). The magnifications refer to the views on a 19 inch screen.
Spruce wood in a scanning electron microscope (view perpendicular to the trunk diameter). At high resolution, the circular pits are easy to see. Pits are thinner portions of the cell wall that allowing mass transfer between neighboring cells.
See Read more
Sometimes it’s worth taking a close-up: Although a layer of lime in a saucepan is really annoying – the growing lime crystals look really beautiful in a SEM!
See also our video: https://www.youtube.com/watch?v=4TODIXZvRgY
Magnification: 1250 foldImage width: 215 µm
The wing of a housefly in the scanning electron microscope.Magnification: 900xImage width: 300µm
Lime tree pollen in relief representation.
Imaging technique: scanning electron microscopy (SEM), 7000x.Pollen diameter: 33 µm.
Dried sourdough: the round starch grains are densely stacked (mixed rye bread).The starch can store water, enables gelatinization and is a very important ingredient for the metabolism of the yeast and lactic acid bacteria in the dough.
Imaging technique: Read more