Beware of new material claims - the case of graphene

@ geoffkait
That was an interesting and impressive video. Samsung is developing  the use of graphene to produce a rapid charge battery. Utilizing graphene as a micro coating on a chip or in a battery is expensive, extensive, processes but is showing great promise in the production of some incredible products.
Although labs are developing processes to curl mono-atomic (2D) graphene sheets, into micro 3D spheres and strands, also shows great promise, companies producing tons of stuff they claim to be graphene powder, to be used to add a bit of magic to everything from condoms to hair spray - leaves me more than a little skeptical.....Jim

"Don't Drink the Graphene!"

Wonderful.....reminds me of a sci-fi novel whereas the trap of a one-molecule strand across a doorway would slice one in half.  The unlucky mortal who blundered into it wouldn't realize the damage until they bent over, or did a sudden movement...

*thump* "Ouch..." *void*....

 @asvjerry                                  
"Don't Drink the Graphene!" 
"one-molecule strand across a doorway would slice one in half"

WOW! You just gave them two wonderful, or not so wonderful, new  ideas for the use of Graphene:
A Powdered Graphene Supplement to mix with ones breakfast drink and Invisable Killer Thread.
I think you're on to something......Jim

Mix graphene with silly putty call it G- putty and take your  blood pressure and monitor spider footsteps. 

The thing about graphene is that a lot of its amazing properties are only valid when you have continuous perfect sheets of it- something that as far as I know is impossible at the moment. It has a very high electron mobility, but that works out to produce a resistivity of about 10nohm.m in bulk, and that's only if you can make a perfect multilayer structure that maintains the properties of a single sheet. This is only about 40% better than copper which is 16.8nohm.m, and that's easy to make nearly perfect.
That conductivity is not maintained if the sheets in the multilayer structure have dislocations. So why is it better than copper?