Experimental images of cellular structures

Light-ground Micrographs with prototype ESA microscope

The relatively restricted resolution of the image sensor means that cell aggregates can theoretically be visualised, though single cells are unlikely to be resolved. In this phase, light-ground illumination is utilised to demonstrate the capacity for the resolution of fine detail.
For the purposes of this experiment, the effective magnification of the image plane is 2x.
Image/lens distance = 12mm. Lens/sensor distance = 11.5mm.

Nerve fibers Cottus head Femur section

(Above Left) Teased human nerve stained with osmium tetroxide.
(Centre) Early embryo of Cottus gobio with orbits well displayed.
(Right) Transverse section of guinea-pig femur.

Stem section Algae (1) Algae (2)

(Above left)Transverse section of Aristolochia stem with vascular bundles displayed.
(Centre and Right)Teased chlorophyte algae (Zygnema spp) from water sample.

Tilia stem Anthers Drosera

(Above left) Transverse section of young Tilia stem with immature cells visible.
(Centre) Anthers of Poa pratensis, showing staminal structures.
(Right) Glandular protuberances of Drosera rotundifolia in a teased preparation.

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