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Anyone here interested in nanomaterials?
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Author | Message |
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Jon (nanoreid) Send message Joined: 16 Aug 07 Posts: 643 Credit: 583,870 RAC: 0 |
Hello all. I am currently working in nanomaterial research and was wondering if anyone else here had an interest. Hopefully the cosmos is not trying to reverse the charges. Moderation in all things. |
Clyde C. Phillips, III Send message Joined: 2 Aug 00 Posts: 1851 Credit: 5,955,047 RAC: 0 |
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. |
MrGray Send message Joined: 17 Aug 05 Posts: 3170 Credit: 60,411 RAC: 0 |
I'd enjoy any and all info you could share, Jon (nanoreid). "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind." - Dr. Seuss |
MrGray Send message Joined: 17 Aug 05 Posts: 3170 Credit: 60,411 RAC: 0 |
I'd enjoy any and all info you could share, Jon (nanoreid). "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind." - Dr. Seuss |
Misfit Send message Joined: 21 Jun 01 Posts: 21804 Credit: 2,815,091 RAC: 0 |
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/ me@rescam.org |
MrGray Send message Joined: 17 Aug 05 Posts: 3170 Credit: 60,411 RAC: 0 |
Thanks, Misfit! . "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind." - Dr. Seuss |
Jon (nanoreid) Send message Joined: 16 Aug 07 Posts: 643 Credit: 583,870 RAC: 0 |
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. Hopefully the cosmos is not trying to reverse the charges. Moderation in all things. |
Jon (nanoreid) Send message Joined: 16 Aug 07 Posts: 643 Credit: 583,870 RAC: 0 |
By Consumer Reports 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. Hopefully the cosmos is not trying to reverse the charges. Moderation in all things. |
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