Nanowires as Needles to Poke Molecules into Cells
A simple method may solve the problem of getting stuff into cells.
Silicon nanowires can deliver a variety of different molecules at the same time. Here, a fluorescent protein (green) and a small RNA molecule (magenta) have been simultaneously, and yet distinctly, administered to cultured cells in a checkered pattern. Arraying different molecules, alone or in combination, makes it possible to perform parallel screens.
Credit: Hongkun Park
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