Is there any CAD software to make nanosized particles?

I am doing my research in nanotechnology related to manufacturing process.I'm in need of CAD software for modeling the nano sized particles.I have searched a lot regarding this in internet.Not getting it clearly.If anybody knows about this support me to solve it.

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3 Answers

3d modeling is not the issue with Nano systems or MEMES. it is more about processes, simulation and design analysis.

here is a few MEMS software that maybe helpful for similar nanosystems:
MEMS+ http://www.coventor.com/

IntelliSuite - http://www.intellisense.com/

I still haven't seen any software that do nanostructured design

 
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you can design as much small particle you want in any cad software and zoom it to view properly.

 
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it seams that my answer was deleted. I gave you a website that has software for just that

 
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