Under The Microscope

This is a blog dedicated to sharing and compiling many different images from under the microscope. From living to non-living, we can appreciate the invention of the microscope that has allowed us to see the into world of the very small.
Cryo-SEM image of a rapid frozen parasite-host interaction. Here Shigella bacteria (in red) attacking a He-La cell, which in a defence reaction forms F-actin induced wide membrane ruffles on its surface (bright blue). The bacterium interacts with the host cell membrane by injecting its invasins, which act to choreograph a local actin-rich membrane ruffle at the host cell surface (Niebuhr and Sansonetti, 2000). The ruffle engulfs the bacterium and eventually disassembles, internalising the bacterium.
Image: Roger Wepf, Philippe Sansonetti, and Ariel Blocker, Electron Microscopy ETH Zurich
+ April 25th, 2012
Mycobacterium avium-complex, Ziehl-Neelsen acid fast stain
+ December 12th, 2011
Salmonella typhimurium
+ November 14th, 2011
Streptococcus pneumoniae
+ August 8th, 2011
These bright, long, spiraling spirochetes are seen under darkfield microscopy from a scraping from a penile chancre in a patient with primary syphilis.
+ August 6th, 2011
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