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Technology update

Jul 8, 2008

Ultrasmall nanoparticles pin-point cancer

Functionalized magnetic nanoparticles have attracted considerable interest as disease-specific MRI contrast agents. However, the value of such agents is highly dependent on their size. Overly large particles face problems navigating through fine capillaries and reaching target cells outside blood vessels. They are also at greater risk of being trapped by the body's reticuloendothelial system.

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