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npr | 23 Οκτ 2009
When you get the flu, viruses turn your cells into tiny factories that help spread the disease. In this animation, NPR's Robert Krulwich and medical animator David Bolinsky explain how a flu virus can trick a single cell into making a million more viruses.
markdow2 | 13 Δεκ 2007
P22, a virion which is the infectious form of a virus as it exists outside the host cell, consisting of a nucleic acid core, and a protein coat. At left is a surface rendering, and at right 2-D slices along the axis.
Rendered from a volumetric Cryo-EM (electon microscope) asymmetric reconstruction with Space Software.
Data source: EMD_1222, Macromolecular Structure Database. Higher resolution, more info at: http://markdow.deviantart.com/art/Vir...
nucleusanimation | 25 Ιούν 2007
http://www.nucleusinc.com This 3D medical animation shows how antibodies stop harmful pathogens from attaching themselves to healthy cells in the blood stream. The animation begins by showing normal red and white blood cells flowing through the blood stream. Next, a single pathogen appears onscreen slowly moving toward its destination on the surface of a cell. The tubular extensions on the pathogen are surface proteins which attach to
corresponding surface proteins on a white blood cell, or leukocyte. As the animation continues, more pathogens continue to attach to the white blood cell, rendering it ineffective.
During the immune system response, Y-shaped antibodies begin attacking the pathogen, binding to its surface proteins as the pathogen attempts to anchor to the blood cell. The antibodies completely block the pathogen from attaching to the blood cell, "tagging" the pathogen so
that one of the immune system's leaner cells, a macrophage, appears onscreen to engulf and digest the pathogen.
Nucleus Medical Art is a leading creator and licensor of medical illustrations, 3D medical animations and interactive multimedia for medical devices, pharmaceutical companies, education, biotechnology, advertising agencies, lawyers, and more. Online at http://www.nucleusinc.com/youtube.