{"id":140056,"date":"2022-06-01T17:22:56","date_gmt":"2022-06-01T22:22:56","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/06\/gold-nanoparticles-arranged"},"modified":"2022-06-01T17:22:56","modified_gmt":"2022-06-01T22:22:56","slug":"gold-nanoparticles-arranged","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/06\/gold-nanoparticles-arranged","title":{"rendered":"Gold nanoparticles arranged"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/gold-nanoparticles-arranged3.jpg\"><\/a><\/p>\n<p>A new technology is using particles of gold to make colors. With further work, the method developed at Aalto University could herald a new display technology.<\/p>\n<p>The technique uses <a href=\"https:\/\/phys.org\/tags\/gold\/\" rel=\"tag\" class=\"\">gold<\/a> nanocylinders suspended in a gel. The gel only transmits certain colors when lit by polarized light, and the color depends on the orientation of the gold nanocylinders. In a clever twist, a collaboration led by Anton Kuzyk\u2019s and Juho Pokki\u2019s research groups used DNA molecules to control the orientation of gold nanocylinders in the gel.<\/p>\n<p>\u201cDNA isn\u2019t just an information carrier\u2014it can also be a building block. We designed the DNA molecules to have a certain melting temperature, so we could basically program the material,\u201d says Aalto doctoral candidate Joonas Ryssy, the study\u2019s lead author. When the gel heats past the <a href=\"https:\/\/phys.org\/tags\/melting+temperature\/\" rel=\"tag\" class=\"\">melting temperature<\/a>, the DNA molecules loosen their grip and the gold nanocylinders change orientation. When the temperature drops, they tighten up again, and the nanoparticles go back to their original position.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new technology is using particles of gold to make colors. With further work, the method developed at Aalto University could herald a new display technology. The technique uses gold nanocylinders suspended in a gel. The gel only transmits certain colors when lit by polarized light, and the color depends on the orientation of the [\u2026]<\/p>\n","protected":false},"author":396,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,4],"tags":[],"class_list":["post-140056","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-nanotechnology"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/140056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/396"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=140056"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/140056\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=140056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=140056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=140056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}