{"id":4415,"date":"2024-02-18T16:47:18","date_gmt":"2024-02-18T15:47:18","guid":{"rendered":"https:\/\/www.em-grade.com\/?p=4415"},"modified":"2024-02-22T13:44:54","modified_gmt":"2024-02-22T12:44:54","slug":"mixture-de-karnovsky-fixateur","status":"publish","type":"post","link":"https:\/\/www.em-grade.com\/fr\/fixateurs-em\/mixture-de-karnovsky-fixateur\/","title":{"rendered":"Mixture de Karnovsky Fixateur."},"content":{"rendered":"

M\u00e9langes contenant du formald\u00e9hyde<\/strong> et du glutarald\u00e9hyde<\/strong>, ce m\u00e9lange est souvent d\u00e9sign\u00e9 comme fixateur de Karnovsky, La combinaison du formald\u00e9hyde avec le\u00a0glutarald\u00e9hyde comme fixateur<\/strong>
\npour la microscopie \u00e9lectronique tire parti de la p\u00e9n\u00e9tration rapide de petites mol\u00e9cules de HCHO, qui d\u00e9clenchent la stabilisation structurelle du tissu.\u00a0 \"\"<\/a><\/p>\n

La r\u00e9ticulation rapide et compl\u00e8te est caus\u00e9e par les oligom\u00e8res de glutarald\u00e9hyde qui p\u00e9n\u00e8trent plus lentement.\u00a0Ce m\u00e9lange est associ\u00e9 au nom de Morris J. Karnovsky de Boston.<\/strong> Il s\u2019agit d\u2019un exemple d\u2019une grande innovation qui n\u2019a \u00e9t\u00e9 publi\u00e9e que dans un r\u00e9sum\u00e9 non r\u00e9vis\u00e9 (Karnovsky, 1965). Son m\u00e9lange original contenait 4 % de glutarald\u00e9hyde, ce qui \u00e9tait une concentration plus \u00e9lev\u00e9e que celle que beaucoup de gens voulaient utiliser (Hayat, 1981). Dans les ann\u00e9es 1960 et 1970, des d\u00e9signations comme
\ncette mixture d’ald\u00e9hydes a permis des descriptions d\u00e9finitives de l\u2019histologie au niveau EM qui est\u00a0 fr\u00e9quemment utilis\u00e9s depuis cette derni\u00e8re d\u00e9cennie\u00a0 apr\u00e8s l\u2019introduction du fixateur de\u00a0 \u00a0 Karnovsky\"\"<\/a><\/p>\n

Les r\u00e9f\u00e9rences<\/p>\n

Baker, J.R. (1958). Principes de microtechnique biologique (r\u00e9imprim\u00e9 en 1970, avec corrections). Londres\u00a0: Methuen.
\nCarson, FL, Martin, JH et Lynn, JA (1973). Fixation du formol pour<\/p>\n","protected":false},"excerpt":{"rendered":"

M\u00e9langes contenant du formald\u00e9hyde et du glutarald\u00e9hyde, ce m\u00e9lange est souvent d\u00e9sign\u00e9 comme fixateur de Karnovsky, La combinaison du formald\u00e9hyde avec le\u00a0glutarald\u00e9hyde comme fixateur pour la microscopie \u00e9lectronique tire parti…<\/p>\n","protected":false},"author":8,"featured_media":4409,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"itsec_x_frame_options":"","footnotes":""},"categories":[290],"tags":[296],"class_list":["post-4415","post","type-post","status-publish","format-standard","has-post-thumbnail","category-fixateurs-em","tag-fixateur-karnovsky"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/comments?post=4415"}],"version-history":[{"count":0,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4415\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media?parent=4415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/categories?post=4415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/tags?post=4415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}