{"id":1348,"date":"2014-09-09T11:28:13","date_gmt":"2014-09-09T02:28:13","guid":{"rendered":"http:\/\/www.lookingatnothing.com\/?p=1348"},"modified":"2014-09-09T11:53:30","modified_gmt":"2014-09-09T02:53:30","slug":"applications-of-saxs-self-assembled-structures","status":"publish","type":"post","link":"https:\/\/lookingatnothing.com\/index.php\/archives\/1348","title":{"rendered":"Applications of SAXS: Self-assembled Structures"},"content":{"rendered":"<p><em>[Ed: It looks like there is more interest than I thought in the field of SAXS; the &#8220;Everything SAXS&#8221; review paper has been downloaded <a href=\"http:\/\/iopscience.iop.org\/0953-8984\/25\/38\/383201\/metrics\">over 10000 times<\/a>!]<\/em><\/p>\n<p>One more application we found for small-angle scattering was to research structures molecules assemble in when immersed in liquids. Many of us are familiar with the micellar structures that appear in water-based solutions, but what happens in other solvents? <!--more--><\/p>\n<p>In this video, we revisit the excellent work of Dr. Martin Hollamby. He synthesized molecules containing a solvophilic and a solvophobic segment, which he then put in nonpolar liquids such as hexane and decane.<\/p>\n<p>As evident from a whole host of techniques, the molecules also arrange in such solvents to form interesting structures, including an arrangement into a very long fibre-like structure! Since small-angle scattering is one of the few non-destructive techniques that can be applied without removal of solvent (which would have destroyed the structure), it was a prime candidate to apply.<\/p>\n<p>Martin used both neutron as well as X-ray scattering to investigate the morphology of the material, and managed to get very good fits using a classical core-shell fitting model. I was involved in the measurement and data correction of the SAXS data, and had many discussions with Martin as to how to fit the scattering. More information in the paper <a href=\"http:\/\/dx.doi.org\/10.1038\/nchem.1977\">here<\/a> (and in a very nice highlight <a href=\"http:\/\/dx.doi.org\/10.1038\/nchem.2013\">here<\/a>), on Martin&#8217;s site <a href=\"http:\/\/martinhollamby.wordpress.com\/2014\/07\/30\/round-up-of-publicity-for-directed-assembly-work\/\">here<\/a>, and on my site <a href=\"http:\/\/www.lookingatnothing.com\/index.php\/archives\/1228\">here<\/a> and <a href=\"http:\/\/www.lookingatnothing.com\/index.php\/archives\/613\">here<\/a>.<\/p>\n<p>Anyway, on to the short video of this. I hope you like it!<\/p>\n<p><iframe loading=\"lazy\" title=\"SAXS Applications: Self-assembled Structures\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/frHsjGcGQZA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>[Ed: It looks like there is more interest than I thought in the field of SAXS; the &#8220;Everything SAXS&#8221; review paper has been downloaded over <a class=\"mh-excerpt-more\" href=\"https:\/\/lookingatnothing.com\/index.php\/archives\/1348\" title=\"Applications of SAXS: Self-assembled Structures\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":2,"featured_media":1349,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1,55],"tags":[149,206,187,208,207,32],"class_list":["post-1348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","category-preteach","tag-martin-hollamby","tag-micelles","tag-saxs-applications","tag-solvophilic","tag-solvophobic","tag-video"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/lookingatnothing.com\/wp-content\/uploads\/2014\/09\/connected.png","jetpack_shortlink":"https:\/\/wp.me\/p1gZ2v-lK","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/1348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/comments?post=1348"}],"version-history":[{"count":1,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/1348\/revisions"}],"predecessor-version":[{"id":1350,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/1348\/revisions\/1350"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/media\/1349"}],"wp:attachment":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/media?parent=1348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/categories?post=1348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/tags?post=1348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}