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Jocelyn Rice Guest Contributor

  • Making Eyes

    Over roughly nine days, a ball of mouse embryonic stem cells (gray) gives rise to a cup-shaped structure (green) with a complex three-dimensional architecture identical to the retina in early development. A tiny sac of cells balloons outward from the clump’s surface; then the sac folds in on itself, with retinal pigment cells on the outside and retinal neurons on the inside.

  • Growing Eyeballs

    Embryonic stem cells growing in a dish can spontaneously form complex structures resembling the retina—a discovery that could one day help restore sight to the blind.

    5 comments

  • Backpacks for Cells

    In the first part of this time-lapse video, an immune cell equipped with a tiny polymer backpack gambols across a microscope slide for some six hours before getting stuck. In the second part of the video, cells with backpacks full of magnetic nanoparticles are tugged toward a magnet, while cells without backpacks stay put.

  • A Vaccine for Colon Cancer

    A new approach to preventing cancer teaches the immune system to seek and destroy emerging tumors.

    6 comments

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