{"id":130901,"date":"2024-11-28T03:58:47","date_gmt":"2024-11-27T20:58:47","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=130901"},"modified":"2024-11-28T03:58:47","modified_gmt":"2024-11-27T20:58:47","slug":"nano-scale-dinosaur-made-by-australian-researchers-from-dna-building-blocks-nanotechnology","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=130901","title":{"rendered":"Nano-scale dinosaur made by Australian researchers from DNA building blocks | Nanotechnology"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p class=\"dcr-1eu361v\">Australian researchers have created building blocks out of DNA to construct a series of nano-scale objects and shapes, from a rod and a square to an infinitesimally small dinosaur.<\/p>\n<p class=\"dcr-1eu361v\">The approach turns DNA into a modular material for building nanostructures \u2013 thousands of times narrower than a human hair. Developed by researchers from the University of Sydney Nano Institute and <a href=\"https:\/\/doi.org\/10.1126\/scirobotics.adp2309\" data-link-name=\"in body link\">published in the journal Science Robotics<\/a>, it suggests exciting possibilities for future use of nanobot technology.<\/p>\n<p class=\"dcr-1eu361v\">As a proof-of-concept, the authors made more than 50 tiny shapes to test their precision and express their creativity. These included a dragon, a dinosaur, and a tiny map of Australia measuring only 150 nanometres wide. (A nanometre is one millionth of a millimetre.)<\/p>\n<p class=\"dcr-1eu361v\">University of Sydney scientist Dr Shelley Wickham, co-author of the paper and research team leader, said the dinosaur was her favourite because it had both compact and flexible parts and was \u201cnot something that could assemble by accident\u201d.<\/p>\n<p class=\"dcr-1eu361v\">The director of RMIT\u2019s micro nano research facility, Prof Arnan Mitchell, who was not involved with the paper, noted that the approach relied on using DNA as a mechanical object rather than as a chemical. This was interesting, he said, because structures made from DNA were potentially small enough to be used in drug delivery.<\/p>\n<figure id=\"7606260e-ee6c-4b75-a84b-019368f91a39\" data-spacefinder-role=\"richLink\" data-spacefinder-type=\"model.dotcomrendering.pageElements.RichLinkBlockElement\" class=\" dcr-1your1i\"><gu-island name=\"RichLinkComponent\" priority=\"feature\" deferuntil=\"idle\" props=\"{&quot;richLinkIndex&quot;:5,&quot;element&quot;:{&quot;_type&quot;:&quot;model.dotcomrendering.pageElements.RichLinkBlockElement&quot;,&quot;prefix&quot;:&quot;Related: &quot;,&quot;text&quot;:&quot;Why is western Sydney so much hotter than the eastern suburbs and what can be done to make summer more bearable?&quot;,&quot;elementId&quot;:&quot;7606260e-ee6c-4b75-a84b-019368f91a39&quot;,&quot;role&quot;:&quot;richLink&quot;,&quot;url&quot;:&quot;https:\/\/www.theguardian.com\/australia-news\/2024\/nov\/27\/western-sydney-heatwave-hotter-than-east-penrith-weather&quot;},&quot;ajaxUrl&quot;:&quot;https:\/\/api.nextgen.guardianapps.co.uk&quot;,&quot;format&quot;:{&quot;design&quot;:0,&quot;display&quot;:0,&quot;theme&quot;:0}}\"\/><\/figure>\n<p class=\"dcr-1eu361v\">DNA could be wrapped around a drug to protect it for delivery to a particular part of the body, he said. \u201cDeliver it to where it needs to go, and then use light or heat or something else to make it unfurl and release the drug.\u201d<\/p>\n<p class=\"dcr-1eu361v\">With increased complexity and greater control, Wickham said the researchers\u2019 approach could be used to make components for robotic boxes capable of delivering targeted drugs, or in the development of smart materials that could respond to the environment.<\/p>\n<p class=\"dcr-1eu361v\">\u201cThis work enables us to imagine a world where nanobots can get to work on a huge range of tasks, from treating the human body to building futuristic electronic devices.\u201d<\/p>\n<p class=\"dcr-1eu361v\">Wickham outlined the process. The first step involved making the 3D building blocks, called \u201cvoxels\u201d, she said. DNA, extracted from a type of virus called a bacteriophage, was \u201cfolded\u201d into a cylindrical shape using an approach called DNA origami and held together with synthetic DNA (made by chemists).<\/p>\n<p class=\"dcr-1eu361v\">Voxels were formed by self-assembly, Wickham explained, relying on carefully sequenced DNA binding together at pre-determined locations, a bit like velcro or specialised glue.<\/p>\n<p class=\"dcr-1eu361v\">\u201cWe throw in 300 of these staples that all have a unique DNA sequence \u2013 like a unique glue \u2013 and they find different parts of the scaffold and stitch it together,\u201d she said.<\/p>\n<p class=\"dcr-1eu361v\">Additional DNA strands incorporated on to the exterior of the voxels, acted as programmable binding sites. These could be used to join voxels together to construct more complex shapes and modular objects, which could be viewed under an electron microscope.<\/p>\n<p class=\"dcr-1eu361v\">\u201cThe results are a bit like using Meccano, the children\u2019s engineering toy,\u201d Wickham said. \u201cAs experimentalists, we spent a lot of time designing these on computers. And then we take the DNA and mix it together and it assembles itself.\u201d<\/p>\n<\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.theguardian.com\/environment\/2024\/nov\/27\/nano-scale-dinosaur-made-by-australian-researchers-from-dna-building-blocks\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Australian researchers have created building blocks out of DNA to construct a series of nano-scale objects and shapes, from a rod and a square to an infinitesimally small dinosaur. The &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=130901\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-130901","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/130901","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=130901"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/130901\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=130901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=130901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=130901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}