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A comment on Graphene: The perfect water filter. Parent comment

Re:Graphene: The perfect water filter by draggnar on Friday January 27, 2012 @08:14AM (#3518135)
Apparently you can make it with a pencil and some sticky tape: http://youtu.be/LwmxSjydPEE

edit: here they are in the lab at Manchester using a similar technique: http://youtu.be/ehvksWx3AJQ

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