Porous silicon nanoneedles efficiently puncture cell monolayers, delivering biomolecules into cells both in vitro and in vivo.
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Prausnitz, M. Puncturing cells en masse. Nature Mater 14, 470–471 (2015). https://doi.org/10.1038/nmat4274
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DOI: https://doi.org/10.1038/nmat4274
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