Is this different than cells self-impaling on asbestos fibers because the Si nano-wires are smaller? In the video from TFA it showed some cells with wires going through them that were longer than the cell's diameter.
This was my question as well. There are some studies showing that carbon nanotubes can be as dangerous as asbestos, so it seems likely silicon nanowires could be as well:
However, if they can make the nanowires shorter than the minimum dimension of a human cell then it likely wouldn't cause the same sort of cancers as asbestos.
