{"id":4513,"date":"2024-08-07T14:10:53","date_gmt":"2024-08-07T12:10:53","guid":{"rendered":"https:\/\/www.uranyless.com\/coloration-negative-2\/"},"modified":"2025-01-31T09:26:47","modified_gmt":"2025-01-31T08:26:47","slug":"coloration-negative-2","status":"publish","type":"page","link":"https:\/\/www.uranyless.com\/fr\/coloration-negative-2\/","title":{"rendered":"Coloration Negative"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"4513\" class=\"elementor elementor-4513 elementor-2479\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c45ad50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c45ad50\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;mdp_selection_sticky_effect_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f4ef262\" data-id=\"f4ef262\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-26f65cf elementor-widget elementor-widget-spacer\" data-id=\"26f65cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-733c2ef elementor-widget elementor-widget-heading\" data-id=\"733c2ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Coloration Negative <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2591a89 elementor-widget elementor-widget-spacer\" data-id=\"2591a89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1fa5ad7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1fa5ad7\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;mdp_selection_sticky_effect_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-8a127ec\" data-id=\"8a127ec\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2ba21bc elementor-widget elementor-widget-text-editor\" data-id=\"2ba21bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Protocole de coloration n\u00e9gative<\/strong><\/p>\n<p>La coloration n\u00e9gative est une technique tr\u00e8s utile en microscopie \u00e9lectronique, qui permet de caract\u00e9riser la morphologie de particules isol\u00e9es telles que des bact\u00e9ries, des virus, des prot\u00e9ines, des nanoparticules, des liposomes, des exosomes, etc.<\/p>\n<p><strong>Protocole de coloration :<\/strong><\/p>\n<ol>\n<li>Sur une feuille de Parafilm ou toute autre surface hydrophobe, d\u00e9posez une goutte d&rsquo;environ 10 \u00b5l de votre solution ainsi qu&rsquo;une goutte d&rsquo;UranyLess.<\/li>\n<li>\u00c0 l&rsquo;aide d&rsquo;une pince fine, placez une grille recouverte d&rsquo;un film de formvar-carbone sur la goutte de votre \u00e9chantillon. Laissez en contact pendant environ 1 minute.<\/li>\n<li>\u00c9gouttez la grille \u00e0 l&rsquo;aide de papier filtre.<\/li>\n<li>Contrastez la grille en la mettant en contact avec la goutte d&rsquo;UranyLess pendant 1 minute.<\/li>\n<li>\u00c9gouttez, laissez s\u00e9cher pendant 5 minutes, puis observez au microscope.<\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-5b7c21c\" data-id=\"5b7c21c\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f16a696 elementor-widget elementor-widget-video\" data-id=\"f16a696\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=Nak-XYdVs_U&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d494fd3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d494fd3\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;mdp_selection_sticky_effect_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-b6d4c77\" data-id=\"b6d4c77\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-260c440 elementor-widget elementor-widget-text-editor\" data-id=\"260c440\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Affiner la technique :<\/strong><\/p>\n<ul>\n<li>Parfois, vous pouvez avoir tr\u00e8s peu d&rsquo;\u00e9chantillon sur votre grille ; dans ce cas, ionisez votre grille.<\/li>\n<li>Si vous avez trop d&rsquo;\u00e9chantillon, rincez-le sur une goutte d&rsquo;eau avant de le contraster.<\/li>\n<li>Si la coloration est trop intense, rincez pendant 1 minute dans de l&rsquo;eau apr\u00e8s avoir contrast\u00e9 avec UranyLess.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-bef81f0\" data-id=\"bef81f0\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0672321 elementor-widget elementor-widget-image\" data-id=\"0672321\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"278\" src=\"https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;ssl=1\" class=\"attachment-large size-large wp-image-3246\" alt=\"\" srcset=\"https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;ssl=1 1024w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1-300x81.jpg?strip=all&amp;lossy=1&amp;ssl=1 300w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1-768x209.jpg?strip=all&amp;lossy=1&amp;ssl=1 768w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;w=204&amp;ssl=1 204w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;w=409&amp;ssl=1 409w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;w=614&amp;ssl=1 614w, https:\/\/evcchbemxkq.exactdn.com\/wp-content\/uploads\/2024\/10\/Schema-protocole-coloration-negative-version-anglaise-1024x278-1.jpg?strip=all&amp;lossy=1&amp;w=819&amp;ssl=1 819w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ed6d0dd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed6d0dd\" data-element_type=\"section\" data-e-type=\"section\" 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class=\"elementor-heading-title elementor-size-default\">Contact<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f66f97 elementor-widget elementor-widget-text-editor\" data-id=\"2f66f97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>22b route de Saint Ybars 31190 <\/p>\n<p>Mauressac France<\/p>\n<p>+(33) 5 61 73 60 14<\/p>\n<p>info@deltamicroscopies.com<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-d40e306\" data-id=\"d40e306\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;mdp_selection_sticky_column_effect_enable&quot;:false}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element 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