Microscopes zoom in on molecules at last

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	Microscopes zoom in on molecules at last

GarryWert

9-1-2009 2:14 AM

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/96e40799-13b6-4636-abb0-ccb2aa35f86f/7FBAE536-3812-48CA-92E7-27C722F16BD4/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html" href="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html" style="font-size: 11px;">www.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html"><H1>
Microscopes zoom in on molecules at last
</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html"><P class="infuse">Thanks to specialised microscopes, we have long been able to see the beauty of single atoms. But strange though it might seem, imaging larger molecules at the same level of detail has not been possible – atoms are robust enough to withstand existing tools, but the structures of molecules are not. Now researchers at IBM have come up with a way to do it.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html"><P class="infuse">The earliest pictures of individual atoms were captured in the 1970s by blasting a target – typically a chunk of metal – with a beam of electrons, a technique known as <A target="ns" href="http://en.wikipedia.org/wiki/Transmission_electron_microscopy">transmission electron microscopy</A> (TEM).</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html"><P class="infuse">Later refinements of this technique, such as the <A target="ns" href="http://ncem.lbl.gov/team3.htm">TEAM project</A> at the Lawrence Berkeley National Laboratory in California achieved resolutions of less than the radius of a single hydrogen atom. But while this method works for atoms in a lattice or thin layer, the electron bombardment destroys the arrangement of atoms in molecules.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn17699-microscopes-zoom-in-on-molecules-at-last.html"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.newscientist.com/img/71A60885-ED09-4928-A421-8B3FDFC1822E" alt="Pentacene as you've never seen it before (Image: IBM and Science)" /></div></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/7FBAE536-3812-48CA-92E7-27C722F16BD4/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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