{"id":13220,"date":"2025-09-03T17:30:23","date_gmt":"2025-09-03T15:30:23","guid":{"rendered":"https:\/\/www.nanomesurefrance.fr\/?p=13220"},"modified":"2025-09-03T17:36:00","modified_gmt":"2025-09-03T15:36:00","slug":"webinaire-nmf-12-09-25","status":"publish","type":"post","link":"https:\/\/www.nanomesurefrance.fr\/en\/webinaire-nmf-12-09-25\/","title":{"rendered":"NMF Webinar September 12, 2025"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"13220\" class=\"elementor elementor-13220\">\n\t\t\t\t\t\t\t        <div class=\"elementor-section elementor-top-section elementor-element elementor-element-7794eee elementor-section-boxed elementor-section-height-default elementor-section-height-default cms-remove-row-no cms-section-no-padding-no cms-boxed-bg-false cms-section-boxed-divider-false cms-overlay-gradient-bg-yes cms-overlay-gradient-mode-tb\" data-id=\"7794eee\" data-element_type=\"section\">\n\t\t\n\t\t<div class=\"cms-overlay-gradient\"><\/div><div class=\"cms-section-boxed-bg\"><\/div><div class=\"cms-section-boxed-divider\"><\/div><div class=\"cms-elementor-section-remove\"><\/div><div class=\"cms-elementor-section-corner cms-elementor-section-corner-top\"><\/div><div class=\"cms-elementor-section-corner cms-elementor-section-corner-bottom\"><\/div>        <div class=\"elementor-container elementor-column-gap-default\" >\n\t\t        <div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-028cbae\" data-id=\"028cbae\" data-element_type=\"column\">\n        <div class=\"elementor-widget-wrap elementor-element-populated\">\n                        \t\t<div class=\"elementor-element elementor-element-87efc81 elementor-widget elementor-widget-heading\" data-id=\"87efc81\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.12.0 - 29-03-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">A new metrological tool: using transmission Kikuchi diffraction (TKD) to identify and separate nanoparticles for regulatory purposes<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t        <\/div>\n        <\/div>\n        \t\t        <\/div>\n        <\/div>\n\t\t        <div class=\"elementor-section elementor-top-section elementor-element elementor-element-50102606 elementor-section-boxed elementor-section-height-default elementor-section-height-default cms-remove-row-no cms-section-no-padding-no cms-boxed-bg-false cms-section-boxed-divider-false cms-overlay-gradient-bg-yes cms-overlay-gradient-mode-tb\" data-id=\"50102606\" data-element_type=\"section\">\n\t\t\n\t\t<div class=\"cms-overlay-gradient\"><\/div><div class=\"cms-section-boxed-bg\"><\/div><div class=\"cms-section-boxed-divider\"><\/div><div class=\"cms-elementor-section-remove\"><\/div><div class=\"cms-elementor-section-corner cms-elementor-section-corner-top\"><\/div><div class=\"cms-elementor-section-corner cms-elementor-section-corner-bottom\"><\/div>        <div class=\"elementor-container elementor-column-gap-default\" >\n\t\t        <div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-449ff5ae\" data-id=\"449ff5ae\" data-element_type=\"column\">\n        <div class=\"elementor-widget-wrap elementor-element-populated\">\n                        \t\t<div class=\"elementor-element elementor-element-1e9da4e elementor-widget elementor-widget-image\" data-id=\"1e9da4e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.12.0 - 29-03-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.nanomesurefrance.fr\/wp-content\/uploads\/2025\/03\/image-pour-site-NMF.jpg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e093842 elementor-widget elementor-widget-text-editor\" data-id=\"4e093842\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.12.0 - 29-03-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>The development of methods for characterizing nanoparticles (NPs) at the nanometric scale is a major challenge for metrology researchers today. <strong>Characterizing the crystalline structure of NPs for regulatory purposes is necessary, as mixtures of NPs are frequently found in consumer products.<\/strong> and this physico-chemical parameter contributes to understanding potential risks to health and the environment.<\/p><p><strong>The methods currently available do not enable individual NPs to be identified, nor their particle size distribution to be correlated with the crystallographic phases.<\/strong>. New methods need to be developed to identify individual particles at the nanometric scale.<\/p><p><strong>This webinar will present Kikuchi transmission diffraction, an electron backscatter diffraction (EBSD) technique,<\/strong> as a method of <strong>characterize a mixture of iron oxide nanoparticles<\/strong> by their crystalline structure. <span style=\"text-decoration: underline;\">After identifying the crystal structure of three different iron oxide powders using X-ray diffraction, the samples were characterized by TKD<\/span>.<\/p><p>The results show that TKD can be used to identify and correctly classify NPs in a mixture and can be combined with SEM imaging to construct histograms of size distribution as a function of NP crystal structure.<\/p><p>Registration: <a href=\"https:\/\/www.eventbrite.fr\/e\/billets-nanomesurefrance-webinar-1656333220249?aff=oddtdtcreator\" target=\"_blank\" rel=\"noopener\"><strong>link<\/strong><\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t        <\/div>\n        <\/div>\n        \t\t        <\/div>\n        <\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<script type=\"text\/javascript\"> toolTips('.classtoolTips12','Comit\u00e9 Europ\u00e9en de Normalisation https:\/\/www.cencenelec.eu\/about-cen\/'); <\/script>","protected":false},"excerpt":{"rendered":"<p>Un nouvel outil m\u00e9trologique : utilisation de la diffraction de Kikuchi par transmission (TKD) pour identifier et s\u00e9parer les nanoparticules \u00e0 des fins r\u00e9glementaires Le d\u00e9veloppement de m\u00e9thodes permettant de caract\u00e9riser les nanoparticules (NP) \u00e0 l&rsquo;\u00e9chelle nanom\u00e9trique repr\u00e9sente aujourd&rsquo;hui un d\u00e9fi majeur pour les chercheurs en m\u00e9trologie. La caract\u00e9risation de la structure cristalline des NP \u00e0 des fins r\u00e9glementaires s&rsquo;av\u00e8re n\u00e9cessaire, car on trouve fr\u00e9quemment des m\u00e9langes de NP dans les produits de consommation et ce param\u00e8tre physico-chimique contribue \u00e0 la compr\u00e9hension des risques potentiels pour la sant\u00e9 et l&rsquo;environnement. Les m\u00e9thodes actuellement disponibles ne permettent pas d&rsquo;identifier individuellement les NP ni de corr\u00e9ler leur distribution granulom\u00e9trique avec les phases cristallographiques. De nouvelles m\u00e9thodes doivent \u00eatre d\u00e9velopp\u00e9es pour identifier les particules individuelles \u00e0 l&rsquo;\u00e9chelle nanom\u00e9trique. Ce webinaire pr\u00e9sentera la diffraction de Kikuchi par transmission, une technique de diffraction des \u00e9lectrons r\u00e9trodiffus\u00e9s (EBSD), comme m\u00e9thode permettant de caract\u00e9riser un m\u00e9lange de nanoparticules d&rsquo;oxyde de fer par leur structure cristalline. Apr\u00e8s avoir identifi\u00e9 la structure cristalline de trois poudres d&rsquo;oxyde de fer diff\u00e9rentes \u00e0 l&rsquo;aide de la diffraction des rayons X, les \u00e9chantillons ont \u00e9t\u00e9 caract\u00e9ris\u00e9s par TKD. Les r\u00e9sultats montrent que la TKD peut \u00eatre utilis\u00e9e pour identifier et classer correctement les NP dans un m\u00e9lange et peut \u00eatre combin\u00e9e \u00e0 l&rsquo;imagerie SEM pour construire des histogrammes de distribution de taille en fonction de la structure cristalline des NP. Inscription: lien<\/p>","protected":false},"author":1,"featured_media":13223,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[158,110,157,159,122],"class_list":["post-13220","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenement","tag-ebsd","tag-instrumentation","tag-sem","tag-tkd","tag-webinaires","cms-has-post-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/posts\/13220","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/comments?post=13220"}],"version-history":[{"count":0,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/posts\/13220\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/media\/13223"}],"wp:attachment":[{"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/media?parent=13220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/categories?post=13220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nanomesurefrance.fr\/en\/wp-json\/wp\/v2\/tags?post=13220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}