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Wednesday, 27 February 2008 |
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Lawrence Berkeley National Laboratory has just installed the most
powerful transmission electron microscope in the world. Using spherical
aberration correction, the same technique used to fix images from the
Hubble Space Telescope, the Transmission Electron Aberration-corrected
Microscope (TEAM) 0.5 makes possible the use of broad-beam and scanning
transmission electron microscopy (STEM). A variety of novel approaches
to sample manipulation and computer reconstruction makes viewing atoms
in three dimensions possible. In addition, aberration correction allows
for low energy beams to be used on samples, making analysis of
biological samples possible. For more on the TEAM 0.5, click here.
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Intravital Microscopy and Direct Priming of Antiviral CD8+ T Cells |
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Wednesday, 27 February 2008 |
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In a new development in the
understanding of interactions between viruses and immune cells,
scientists at the National Institute of Allergy and Infectious Diseases
(NIAID) have monitored T cells in the interfollicular region of lymph
nodes. Their observations show that antigen presentation at the lymph
node periphery and not at the lyphocyte exit sites has a dominant
function in antiviral CD8+ cell activation. Read the full article in Nature Immunology here.
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Nanopatterned Biorubber Used as Internal Surgical Adhesive |
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Wednesday, 27 February 2008 |
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MIT researchers have created a sugar-based glue that adheres to wet
surfaces. This technology is advantageous for many reasons; chiefly
because of its application as a bandaging agent for organ tissue.
Nanopatterning gives the sugar-based glue bonding properties that are
twice as strong as the non-nanopatterned glue. Read more here.
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Wednesday, 27 February 2008 |
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Glioblastoma may have met its match. A new study published in the Journal of Neuroscience
shows that the use of replicating vesicular stomatitis virus
successfully infected tumor cells, causing cell death, but left healthy
cells virtually untouched. Read more here.{
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