Sandia National Laboratories has created a micromachine that interacts at the scale of cells and could have important uses in genetic engineering and medicine.

The device uses silicon microteeth that open and close like jaws to momentarily trap individual cells to implant materials.

The ultimate goal of the Sandia device is to puncture cells and inject them with DNA, proteins, or pharmaceuticals to counter biological or chemical attacks, gene imbalances, and natural bacterial or viral invasions. The devices can be mass-produced easily and cheaply through computer-chip production techniques.

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