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May 7, 2012: The human immune system in action. This colored scanning electron microscope image shows a white blood cell (dyed red) in the act of destroying tuberculosis bacteria (yellow). The bacteria are surrounded by the cell membrane of the scavenger cell, then drawn inside and rendered harmless ideally, forever.

Color enhanced scanning electron micrograph (SEM) of a network of capillaries in an alveolus (air sac) of the lung. The lungs are the site of gaseous exchange, where oxygen is taken up by the blood from inhaled air and carbon dioxide released for exhalation

Taken by Volker Brinkmann, from the institutes department for infection in Berlin, this image shows a scanning electronic recording of a white blood cell (in red), eating tuberculosis bacteria (in green)

Polyethylene glycol crystallization in POL microscope

Indirect immunofluorescent images, of NIH-3T3 cells ,murine fibroblasts,, were acquired by confocal microscopy. Focal adhesions, shown in red, are the cellâ??s anchoring points. Fibrillar adhesions, shown in green, translocate out of focal adhesions pulling fibronectin molecules ,extracellular matrix protein,, thus facilitating fibrillogenesis. Cell nuclei are shown in blue. X63

Kidney Stone, Microscopic View

Male Nemotoda, taken with ZEISS SEM. Courtesy of Emil Zieba

Red blood cells ,erythrocytes, in a vein showing their biconcave shape. TEM X18,000