{"id":3914,"date":"2023-12-04T16:35:33","date_gmt":"2023-12-04T15:35:33","guid":{"rendered":"https:\/\/www.em-grade.com\/product\/glutaraldehyde-2-h2o2-in-buffer-phosphate-or-cacodylate\/"},"modified":"2024-03-05T10:54:15","modified_gmt":"2024-03-05T09:54:15","slug":"lutaraldehyde-2-h2o2-dans-tampon","status":"publish","type":"product","link":"https:\/\/www.em-grade.com\/fr\/produit\/lutaraldehyde-2-h2o2-dans-tampon\/","title":{"rendered":"Glutarald\u00e9hyde 2%, H2O2 dans un tampon (phosphate ou cacodylate)"},"content":{"rendered":"<p>Stockage : 4-8\u00b0<\/p>\n<h4><strong>Ce fixateur am\u00e9liore la visibilit\u00e9 des <span style=\"color: #800000;\">cytomembranes<\/span>, des compartiments et des <span style=\"color: #800000;\">limites cellulaires<\/span>, le rendant particuli\u00e8rement utile pour l&rsquo;\u00e9tude des<span style=\"color: #800000;\"> jonctions cellulaires<\/span>.<\/strong><\/h4>\n<p>&nbsp;<\/p>\n<p>L\u2019utilisation de la fixation\u00a0<strong>glutarald\u00e9hyde-peroxyde d\u2019hydrog\u00e8ne<\/strong>\u00a0pour les \u00e9tudes cytochimiques a \u00e9t\u00e9 explor\u00e9e dans la recherche scientifique. Dans une \u00e9tude men\u00e9e par Camillo Peracchia et Brant S.\u00a0<a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\">Mittler, ils ont \u00e9tudi\u00e9 les effets de cette m\u00e9thode de fixation sur des \u00e9chantillons cellulaires<\/a><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\"><sup>1<\/sup><\/a>. Voici quelques points cl\u00e9s de leur travail :<\/p>\n<ol>\n<li><strong>M\u00e9thodologie<\/strong>\u00a0:\n<ul>\n<li>Les chercheurs ont utilis\u00e9 une combinaison de\u00a0<strong>glutarald\u00e9hyde<\/strong>\u00a0et de\u00a0<strong>peroxyde d\u2019hydrog\u00e8ne<\/strong>\u00a0comme fixateur pour les \u00e9chantillons biologiques.<\/li>\n<li>Le glutarald\u00e9hyde est un fixateur couramment utilis\u00e9 pour pr\u00e9server les structures cellulaires, tandis que le peroxyde d\u2019hydrog\u00e8ne est connu pour ses propri\u00e9t\u00e9s oxydatives.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Conservation des enzymes<\/strong>\u00a0:\n<ul>\n<li>L\u2019\u00e9tude a sugg\u00e9r\u00e9 que la fixation\u00a0<strong>du glutarald\u00e9hyde-peroxyde d\u2019hydrog\u00e8ne<\/strong>\u00a0pourrait mieux pr\u00e9server\u00a0<strong>l\u2019activit\u00e9 enzymatique<\/strong>\u00a0par rapport \u00e0 la fixation conventionnelle du glutarald\u00e9hyde.<\/li>\n<li><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\">Plus pr\u00e9cis\u00e9ment, il a \u00e9t\u00e9 observ\u00e9 que cette m\u00e9thode maintenait l\u2019activit\u00e9 enzymatique de la nucl\u00e9oside diphosphatase et de la thiamine pyrophosphatase dans les h\u00e9patocytes et d\u2019autres cellules de rat<\/a><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\"><sup>1<\/sup><\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ol>\n<li><strong>Am\u00e9lioration de la r\u00e9activit\u00e9<\/strong>\u00a0:\n<ul>\n<li>La combinaison de glutarald\u00e9hyde et de peroxyde d\u2019hydrog\u00e8ne peut am\u00e9liorer la r\u00e9activit\u00e9 des fixateurs.<\/li>\n<li>Les \u00e9poxydes, qui sont des groupes instables, r\u00e9agissent facilement avec les groupes amino, imino, hydroxyle et mercapto.<\/li>\n<li><a href=\"https:\/\/rupress.org\/jcb\/article-pdf\/53\/1\/234\/1625762\/234.pdf\">L\u2019am\u00e9lioration de la conservation des polysaccharides pourrait \u00eatre attribu\u00e9e \u00e0 la forte r\u00e9activit\u00e9 entre les groupes \u00e9poxy et hydroxyle<\/a><a href=\"https:\/\/rupress.org\/jcb\/article-pdf\/53\/1\/234\/1625762\/234.pdf\"><sup>2<\/sup><\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\">En r\u00e9sum\u00e9, la fixation\u00a0<strong>du glutarald\u00e9hyde-peroxyde d\u2019hydrog\u00e8ne<\/strong>\u00a0offre un avantage potentiel dans la pr\u00e9servation de l\u2019activit\u00e9 enzymatique et des structures cellulaires, ce qui en fait une technique pr\u00e9cieuse pour les investigations cytochimiques<\/a><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\"><sup>1<\/sup><\/a><a href=\"https:\/\/rupress.org\/jcb\/article-pdf\/53\/1\/234\/1625762\/234.pdf\"><sup>2<\/sup><\/a>. Cependant, des recherches et des validations suppl\u00e9mentaires sont n\u00e9cessaires pour bien comprendre ses applications et ses limites.<\/p>\n<p><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\">Pour plus de d\u00e9tails, vous pouvez vous r\u00e9f\u00e9rer \u00e0 l\u2019article de recherche original :\u00a0<\/a><a href=\"https:\/\/rupress.org\/jcb\/article\/53\/1\/234\/17912\/FIXATION-BY-MEANS-OF-GLUTARALDEHYDE-HYDROGEN\">FIXATION AU MOYEN DE PRODUITS DE R\u00c9ACTION GLUTARALD\u00c9HYDE-PEROXYDE D\u2019HYDROG\u00c8NE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Pr\u00eat \u00e0 l&#8217;emploi.<\/strong><\/p>\n<p>Eau distill\u00e9e<br \/>\nSt\u00e9rile<br \/>\nSous vide airless flacon<br \/>\n<strong>Qualit\u00e9 EM Grade<\/strong><\/p>\n","protected":false},"featured_media":0,"template":"","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":""},"product_brand":[],"product_cat":[186,190],"product_tag":[],"class_list":["post-3914","product","type-product","status-publish","product_cat-fixateurs","product_cat-fixateurs-specifiques","pa_buffer-type-tampon-cacodylate","pa_buffer-type-tampon-phosphate","pa_volume-1000ml-fr","pa_volume-10ml-x-10-fr","pa_volume-125ml-fr","pa_volume-250ml-fr","pa_volume-30ml-fr","pa_volume-500ml-fr","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/product\/3914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media?parent=3914"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/product_brand?post=3914"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/product_cat?post=3914"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/product_tag?post=3914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}