<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/ac167b49-f80d-41c2-9f95-de0314db3736/93FB1EA5-1C70-4938-9B25-0CB0E4A38D99/" 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://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20" href="http://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20" style="font-size: 11px;">technology.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20"><P>Nanoscopic DNA pyramids that change shape when sent different chemical signals, have been demonstrated by researchers in the UK and Germany. Such structures could act as the motors of nanoscale robots, they say.</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://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20"><P>Other researchers have previously built DNA devices capable of <A href="http://technology.newscientist.com/channel/tech/dn13192-dna-fabricator-constructs-walking-dna.html" linkindex="29">walking along proteins</A> or <A href="http://technology.newscientist.com/channel/tech/dn10763-nanoscopic-robot-arms-built-from-dna.html" linkindex="30" set="yes">functioning like nanoscopic robot arms</A>, but precise control of these 3D structures has proven difficult.</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://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20"><P>Now <A target="ns" href="http://www.physics.ox.ac.uk/cm/people/turberfield.htm" linkindex="31">Andrew Turberfield</A> of Oxford University in the UK, and colleagues at the <A target="ns" href="http://www.uni-bielefeld.de/International/" linkindex="32" set="yes">University of Bielefeld</A> in Germany, have shown how carefully crafted DNA structures can be made to self assemble and change shape when sent specific DNA signals.</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://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20"><div align="center"><img src="http://content6.clipmarks.com/blog_cache/technology.newscientist.com/img/B25CED1C-ABD0-4A8A-AB6C-75A84EE7DA14" alt="Tetrahedrons of DNA can change shape in response to further " /></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://technology.newscientist.com/channel/tech/dn13277-remotecontrol-dna-pistons-could-power-tiny-robots.html?feedId=online-news_rss20"><DIV class="straptext">Tetrahedrons of DNA can change shape in response to further "remote control" DNA molecules. Here, one side of a structure can be made to change its length by more than half with the addition of another DNA molecule (Image: Nature/Oxford University)</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/93FB1EA5-1C70-4938-9B25-0CB0E4A38D99/blog/" title="blog or email this clip"><img src="http://content7.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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