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Jagged graphene can slice into cell membranes
▻http://news.brown.edu/pressreleases/2013/07/graphene
A collaboration of biologists, engineers, and material scientists at Brown University has found that jagged edges of graphene can easily pierce cell membranes, allowing graphene to enter the cell and disrupt normal function. Understanding the mechanical forces of nanotoxicity should help engineers design safer materials at the nanoscale.
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Graphene Not All Good
▻http://ucrtoday.ucr.edu/22044
Material that could change electronics industry is shown to be very mobile in water and likely to cause negative environmental impacts if spilled