September/October 2008

From the Labs: Biotechnology

New publications, experiments and breakthroughs in biotechnology--and what they mean.

By Emily Singer

This MRI of a mouse brain clearly shows a dark circle (arrow) of magnetic cells. The cells, genetically engineered to produce magnetic particles and then injected into the brain, could provide a new approach to imaging. Credit: Wiley-Liss, a subsidiary of John Wiley and Sons

Magnetic Genes
Genetically ­engineered cells make their own nano magnets, providing clear MRI images

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