self-healing at the nanoscale


	self-healing at the nanoscale

mona

10-27-2009 9:04 PM

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tags:

science, nature, research

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10-28-2009 7:33 AM

chestnut501

The human body is wonderful and amazing.

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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://www.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/081ae141-4b27-4c41-8cf9-ddc94e545cf8/65767B5B-6E64-4B68-AB85-731665009C34/" 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.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp" href="http://www.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp" style="font-size: 11px;">www.rsc.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp"><DIV class="header">Instant insight: Self-healing at the nanoscale</DIV></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.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp"><P>Nature uses self-healing in all living systems to repair damage caused by environmental interactions. A simple case is repairing a skin wound - without this mechanism, we could not live. DNA repair, which must occur routinely in every living organism, is another example. But at what level do repairing mechanisms occur? Looking at the components of a living system, we find cells, which typically have micrometre dimensions. But we have to zoom in further, namely to the nanoscale, to see the sub-cellular structures on which nature's self-healing mechanisms work. There we can see why natural systems are inspirations for the world of nanostructures.</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.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.rsc.org/img/635C8AAE-5477-45E4-A3F7-A5E37955D2A5" alt="Self-healing of a nanoparticle" /></div></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.rsc.org/Publishing/ChemTech/Volume/2009/12/nanoscale.asp">Auto-assembling materials spontaneously organise themselves. Following an external perturbation, their structure reassembles itself automatically. Shape memory materials recover their original structure by exploiting their characteristic phase transitions.</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/65767B5B-6E64-4B68-AB85-731665009C34/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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