Anyone here interested in nanomaterials?


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Message boards : Science (non-SETI) : Anyone here interested in nanomaterials?

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Profile Jon (nanoreid)
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Message 621030 - Posted: 17 Aug 2007, 13:39:39 UTC

Hello all. I am currently working in nanomaterial research and was wondering if anyone else here had an interest.
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Profile Clyde C. Phillips, III
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Message 621273 - Posted: 17 Aug 2007, 19:13:33 UTC

It's interesting to see what's been done with materials only a few atoms big. Have electron microscopes gotten better in the last 30 or 40 years? The last time I've heard their best resolution was about one to two nanometers, and that was possibly three decades ago. It seems like by now pictures should be showing individual atoms clearly. I haven't seen any. I understand atoms are about 0.2 to 0.3 nanometers across, but I don't know if they get larger (or just denser) as their atomic weight rises.
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MrGray
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Message 621323 - Posted: 17 Aug 2007, 20:54:08 UTC

I'd enjoy any and all info you could share, Jon (nanoreid).
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MrGray
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Message 621324 - Posted: 17 Aug 2007, 20:54:19 UTC

I'd enjoy any and all info you could share, Jon (nanoreid).
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Profile Misfit
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Message 621442 - Posted: 17 Aug 2007, 22:59:19 UTC

By Consumer Reports

Click the links on the left side to continue the article. Printed version available in current July 2007 issue.

FDA regulation of nanotechnology: http://www.fda.gov/nanotechnology/

See also: http://www.nano.gov/
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MrGray
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Message 621539 - Posted: 18 Aug 2007, 0:30:51 UTC

Thanks, Misfit!



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Profile Jon (nanoreid)
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Message 622280 - Posted: 18 Aug 2007, 23:12:10 UTC - in response to Message 621273.

It's interesting to see what's been done with materials only a few atoms big. Have electron microscopes gotten better in the last 30 or 40 years? The last time I've heard their best resolution was about one to two nanometers, and that was possibly three decades ago. It seems like by now pictures should be showing individual atoms clearly. I haven't seen any. I understand atoms are about 0.2 to 0.3 nanometers across, but I don't know if they get larger (or just denser) as their atomic weight rises.


I'm glad you asked Clyde. I recently read a paper from a group in Japan that had images of individual C60 molecules. While they were a bit fuzzy, you could easily count each atom in the molecule.
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Profile Jon (nanoreid)
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Message 622283 - Posted: 18 Aug 2007, 23:24:40 UTC - in response to Message 621442.

By Consumer Reports

Click the links on the left side to continue the article. Printed version available in current July 2007 issue.

FDA regulation of nanotechnology: http://www.fda.gov/nanotechnology/

See also: http://www.nano.gov/


Thanks for the links. I will read the task force report in greater detail later but just from a quick skim, it looks like the FDA has a good start on regulatory issues facing nanomaterials. As a researcher in a relatively new field, I am constantly aware that the need for caution in dealing with unknown qualities is a must. To paraphrase a recent public official- There are things that we know and there are thing that we know we don't know but there are things that we don't know that we don't know.
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Hopefully the cosmos is not trying to reverse the charges.
Moderation in all things.

Message boards : Science (non-SETI) : Anyone here interested in nanomaterials?

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