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chrisnfolsom
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Re: A graphene ban?
chrisnfolsom   7/19/2013 5:44:41 AM
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I would like to know what other materials pierce cells - I am sure there are many - also, what happens to the material when absorbed by the cell - is it incapsulated and broken down, or neutralized?  The image looks bad (great image btw), but what are the long term affects?

Sheetal.Pandey
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Re: A graphene ban?
Sheetal.Pandey   7/19/2013 2:08:28 AM
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Is graphene a naturally occuring substance or man made??

Sanjib.A
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Re: A graphene ban?
Sanjib.A   7/18/2013 11:11:27 PM
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This does not sound positive for the future of graphene. Thanks for the information. Even though there are some positiveness brought into this article by the information provided in the para "...developing safer methods of manufacturing, handling, and utilizing them throughout their lifecycles". But I think that the world is moving to the future, when electronics might be part of every activities in our lives, there will be stricter norms for a safer environment, better heath, better quality of life...like Europe making regulatory compliance requirement for all electronics RoHS compliant by 2017...regulatory compulsions might impose stricter norms going forward and could be a hurdle for Graphene if this study is proven and approved by others. What do you think?

 

resistion
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Re: A graphene ban?
resistion   7/18/2013 10:14:01 PM
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Carbon nanotubes had similar threats reported as well. The exotic properties of 2D sheets of carbon atoms may have benefits but the possible adverse effects also need to studied.

Susan Rambo
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A graphene ban?
Susan Rambo   7/18/2013 9:04:05 PM
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Sounds like a no-brainer that the toxicity of graphene would preclude its use in in-body medical devices, but then again the article implies that the study is concerned about the safe manufacturing process. I wonder if the medical regulations will ban graphene for certain uses.

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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