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IAM1
B.V. Info-a-holic
Joined: Sep 01, 2006
Posts: 5474
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 Posted: Sun Feb 17, 2008 8:23 pm Post subject: CONTROLLING CELL BEHAVIOR WITH MAGNETS |
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Controlling Cell Behavior with Magnets
Nanoparticles allow researchers to initiate biochemical events at will.
Cell switch: Immune cells coated with nanoparticles take up calcium in the presence of a magnetic field. Each nanoparticle measures approximately 30 nanometers in diameter. In this image, yellow cells are taking up calcium in response to a localized magnetic field. Cells that are farther away from the field are shown in purple and do not take up calcium.
January 18, 2008
'For the first time, researchers have demonstrated a means of controlling cell functions with a physical, rather than chemical, signal. Using a magnetic field to pull together tiny beads targeted to particular cell receptors, Harvard researchers made cells take up calcium, and then stop, then take it up again.'
Read more ...
http://www.technologyreview.com/Nanotech/20087/
Technology Review: Controlling Cell Behavior with Magnets |
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