{"id":65164,"date":"2026-01-26T16:19:22","date_gmt":"2026-01-26T21:19:22","guid":{"rendered":"https:\/\/rheolution.com\/?p=65164"},"modified":"2026-08-13T14:11:51","modified_gmt":"2026-08-13T18:11:51","slug":"hydrogels-de-polyacrylamide","status":"publish","type":"post","link":"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-polyacrylamide\/","title":{"rendered":"Hydrogels de polyacrylamide"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65164\" class=\"elementor elementor-65164 elementor-63309\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8fd4dcf e-flex e-con-boxed e-con e-parent\" data-id=\"8fd4dcf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8c770e2 elementor-widget elementor-widget-heading\" data-id=\"8c770e2\" 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<h6 class=\"elementor-heading-title elementor-size-default\">Note d'application | ElastoSens\u2122 Bio<\/h6>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-760ae40 elementor-widget elementor-widget-heading\" data-id=\"760ae40\" 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<h1 class=\"elementor-heading-title elementor-size-default\">Hydrogels de polyacrylamide : propri\u00e9t\u00e9s, applications et comportement m\u00e9canique<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16057f6 elementor-widget elementor-widget-text-editor\" data-id=\"16057f6\" 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>par <a href=\"https:\/\/www.linkedin.com\/in\/mayasalame\/\">Maya Salame<\/a> et <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas%C3%A3o-049002a2\/\">Dimitria Camasao<\/a><\/p><p>Charg\u00e9s d&rsquo;\u00e9tudes d&rsquo;application<\/p>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-97ac8de e-flex e-con-boxed e-con e-parent\" data-id=\"97ac8de\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5fc8fde elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"5fc8fde\" 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\">Qu'est-ce qu'un hydrogel de polyacrylamide (PAM) ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d61237b elementor-widget elementor-widget-text-editor\" data-id=\"d61237b\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide (PAM) sont des r\u00e9seaux polym\u00e8res synth\u00e9tiques gonfl\u00e9s \u00e0 l&rsquo;eau, form\u00e9s \u00e0 partir de monom\u00e8res d&rsquo;acrylamide r\u00e9ticul\u00e9s chimiquement ou physiquement pour former une structure tridimensionnelle. Le polyacrylamide lui-m\u00eame est un polym\u00e8re organique compos\u00e9 de sous-unit\u00e9s d&rsquo;acrylamide r\u00e9p\u00e9titives ; lorsqu&rsquo;il est r\u00e9ticul\u00e9 en milieu aqueux, il forme des gels souples et fortement hydrat\u00e9s pr\u00e9sentant un comportement m\u00e9canique similaire \u00e0 celui des tissus. Les hydrogels de PAM sont enti\u00e8rement synth\u00e9tiques et produits industriellement, ce qui leur conf\u00e8re une grande reproductibilit\u00e9 d\u2019un lot \u00e0 l\u2019autre ainsi que des propri\u00e9t\u00e9s modulables. Ils sont g\u00e9n\u00e9ralement synth\u00e9tis\u00e9s par polym\u00e9risation radicalaire de monom\u00e8res d\u2019acrylamide, la formation du r\u00e9seau \u00e9tant contr\u00f4l\u00e9e par des initiateurs, des agents de r\u00e9ticulation ou des m\u00e9thodes bas\u00e9es sur l\u2019irradiation. En raison de leur nature non toxique, de leur forte teneur en eau et de l\u2019architecture contr\u00f4lable de leur r\u00e9seau, les hydrogels de polyacrylamide sont d\u00e9sormais largement utilis\u00e9s comme mat\u00e9riaux souples mod\u00e8les dans la recherche biom\u00e9dicale et en ing\u00e9nierie.    <\/span><\/p>\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-5703c6a elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"5703c6a\" 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\">Propri\u00e9t\u00e9s essentielles des hydrogels de polyacrylamide<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5a0b64a elementor-widget elementor-widget-heading\" data-id=\"5a0b64a\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Caract\u00e9ristiques physico-chimiques<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38524ee elementor-widget elementor-widget-text-editor\" data-id=\"38524ee\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide se forment par des m\u00e9canismes de polym\u00e9risation et de r\u00e9ticulation qui d\u00e9terminent la densit\u00e9 de leur r\u00e9seau, leur comportement au gonflement et leur stabilit\u00e9. La formation du gel repose sur la liaison lat\u00e9rale des cha\u00eenes polym\u00e8res, ce qui emp\u00eache la dissolution dans l&rsquo;eau et cr\u00e9e une matrice d&rsquo;hydrogel stable. <\/span><\/p><p><span style=\"font-weight: 400\">Parmi les strat\u00e9gies courantes de g\u00e9lification et de r\u00e9ticulation, on peut citer :<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Polym\u00e9risation radicalaire de monom\u00e8res d&rsquo;acrylamide en solution aqueuse.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">R\u00e9ticulation chimique \u00e0 l&rsquo;aide d&rsquo;agents de r\u00e9ticulation bifonctionnels tels que le m\u00e9thyl\u00e8nebisacrylamide.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">R\u00e9ticulation induite par rayonnement sans ajout d&rsquo;agents de r\u00e9ticulation chimiques.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">R\u00e9ticulation physico-chimique double associant des liaisons covalentes et des interactions secondaires.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Les param\u00e8tres environnementaux tels que la concentration en monom\u00e8res, la densit\u00e9 de r\u00e9ticulation, la temp\u00e9rature, le pH et la force ionique influencent fortement la formation du gel, la cin\u00e9tique de gonflement et la structure finale du r\u00e9seau. Les hydrogels \u00e0 base de PAM peuvent subir d&rsquo;importants changements de volume lors du gonflement tout en conservant leur int\u00e9grit\u00e9 structurelle. <\/span><\/p>\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-30981bc elementor-widget elementor-widget-heading\" data-id=\"30981bc\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Propri\u00e9t\u00e9s m\u00e9caniques<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e827a1 elementor-widget elementor-widget-text-editor\" data-id=\"2e827a1\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide pr\u00e9sentent un comportement m\u00e9canique souple, \u00e9lastique et visco\u00e9lastique qui peut \u00eatre ajust\u00e9 avec pr\u00e9cision sur une large plage. Leur rigidit\u00e9 et leur r\u00e9sistance d\u00e9pendent principalement de la densit\u00e9 de r\u00e9ticulation, de la concentration en polym\u00e8re et de l&rsquo;architecture du r\u00e9seau. <\/span><\/p><p><span style=\"font-weight: 400\">Parmi les principales caract\u00e9ristiques m\u00e9caniques, on peut citer :<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Des modules d&rsquo;\u00e9lasticit\u00e9 allant de valeurs tr\u00e8s faibles, comparables \u00e0 celles des tissus, \u00e0 des r\u00e9gimes nettement plus rigides.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Forte d\u00e9pendance de la rigidit\u00e9, de l&rsquo;extensibilit\u00e9 et de la t\u00e9nacit\u00e9 par rapport au degr\u00e9 de r\u00e9ticulation.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Compromis entre r\u00e9sistance m\u00e9canique et fragilit\u00e9 \u00e0 des densit\u00e9s de r\u00e9ticulation \u00e9lev\u00e9es.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Am\u00e9lioration des performances m\u00e9caniques gr\u00e2ce \u00e0 des conceptions \u00e0 base de composites, \u00e0 double r\u00e9seau ou renforc\u00e9es par des nanoparticules.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Les propri\u00e9t\u00e9s m\u00e9caniques peuvent \u00e9voluer au fil du temps en raison du gonflement, du r\u00e9arrangement du r\u00e9seau ou de la d\u00e9gradation, ce qui rend indispensable une caract\u00e9risation en fonction du temps pour de nombreuses applications.<\/span><\/p>\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-0959975 elementor-widget elementor-widget-heading\" data-id=\"0959975\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Interactions biologiques<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90cc644 elementor-widget elementor-widget-text-editor\" data-id=\"90cc644\" 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><span style=\"font-weight: 400\">Bien que le polyacrylamide ne soit pas intrins\u00e8quement bioactif, les hydrogels de PAM sont largement utilis\u00e9s dans des contextes biologiques en raison de leur biocompatibilit\u00e9 et de leurs propri\u00e9t\u00e9s de surface contr\u00f4lables. Ils sont g\u00e9n\u00e9ralement non toxiques et non immunog\u00e8nes lorsqu\u2019ils sont correctement synth\u00e9tis\u00e9s et purifi\u00e9s. <\/span><\/p><p><span style=\"font-weight: 400\">Les interactions biologiques comprennent :<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Adh\u00e9rence cellulaire intrins\u00e8que limit\u00e9e, ce qui permet de l&rsquo;utiliser comme substrat m\u00e9canique inerte.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Adsorption prot\u00e9ique modulable en fonction de la chimie de surface et de l&rsquo;hydrophilie.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Favorise la viabilit\u00e9, la prolif\u00e9ration et la migration cellulaires lorsqu\u2019il est correctement modifi\u00e9 <\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">D\u00e9gradation enzymatique minimale, garantissant une stabilit\u00e9 structurelle \u00e0 long terme.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Ces caract\u00e9ristiques font des hydrogels PAM des mat\u00e9riaux de r\u00e9f\u00e9rence pr\u00e9cieux pour l&rsquo;\u00e9tude des interactions cellule-matrice, qui sont principalement r\u00e9gies par des facteurs m\u00e9caniques plut\u00f4t que par des signaux biochimiques.<\/span><\/p>\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-28004d8 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"28004d8\" 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\">Applications des hydrogels de polyacrylamide<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06adff0 elementor-widget elementor-widget-heading\" data-id=\"06adff0\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Ing\u00e9nierie tissulaire<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba2f1b1 elementor-widget elementor-widget-text-editor\" data-id=\"ba2f1b1\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide sont utilis\u00e9s comme supports \u00e0 propri\u00e9t\u00e9s m\u00e9caniques ajustables et comme matrices mod\u00e8les dans la recherche en ing\u00e9nierie tissulaire. Leurs propri\u00e9t\u00e9s \u00e9lastiques peuvent \u00eatre adapt\u00e9es afin d\u2019imiter celles des tissus naturels, ce qui facilite les \u00e9tudes sur la m\u00e9canotransduction, les concepts de remplacement du cartilage et la mise au point d\u2019analogues de tissus mous capables de supporter des charges lorsqu\u2019ils sont renforc\u00e9s ou associ\u00e9s \u00e0 des r\u00e9seaux secondaires. <\/span><\/p>\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-d01f123 elementor-widget elementor-widget-heading\" data-id=\"d01f123\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Culture cellulaire en 3D et mod\u00e8les de maladies<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-137d5ec elementor-widget elementor-widget-text-editor\" data-id=\"137d5ec\" 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><span style=\"font-weight: 400\">Dans les syst\u00e8mes de culture cellulaire tridimensionnels, les hydrogels \u00e0 base de PAM constituent des environnements m\u00e9caniques bien d\u00e9finis permettant d\u2019\u00e9tudier la mani\u00e8re dont les cellules r\u00e9agissent \u00e0 la rigidit\u00e9 et \u00e0 la visco\u00e9lasticit\u00e9 du substrat. Leur inertie chimique permet aux chercheurs de dissocier les effets m\u00e9caniques de la signalisation biochimique, ce qui en fait des outils pr\u00e9cieux pour la mod\u00e9lisation des maladies, la m\u00e9canobiologie et les \u00e9tudes sur le destin cellulaire. <\/span><\/p>\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-c1cb3eb elementor-widget elementor-widget-heading\" data-id=\"c1cb3eb\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Administration de m\u00e9dicaments, de g\u00e8nes et de cellules<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff74672 elementor-widget elementor-widget-text-editor\" data-id=\"ff74672\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide sont utilis\u00e9s comme matrices \u00e0 diffusion contr\u00f4l\u00e9e pour l&rsquo;administration de m\u00e9dicaments en raison de leur forte teneur en eau, de la taille de mailles ajustable et de leur stabilit\u00e9 chimique. En ajustant les rapports de g\u00e9lification et la densit\u00e9 du r\u00e9seau, il est possible de contr\u00f4ler avec pr\u00e9cision la cin\u00e9tique de lib\u00e9ration des m\u00e9dicaments ou des biomol\u00e9cules encapsul\u00e9s. Les syst\u00e8mes \u00e0 base de PAM sont \u00e9galement \u00e9tudi\u00e9s pour servir de plateformes d\u2019administration localis\u00e9e n\u00e9cessitant une stabilit\u00e9 \u00e0 long terme.  <\/span><\/p>\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-3225b62 elementor-widget elementor-widget-heading\" data-id=\"3225b62\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Biocapteurs et bio\u00e9lectronique souple<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4831def elementor-widget elementor-widget-text-editor\" data-id=\"4831def\" 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><span style=\"font-weight: 400\">Les hydrogels de polyacrylamide sont largement utilis\u00e9s dans les biocapteurs et les dispositifs bio\u00e9lectroniques souples en raison de leur visco\u00e9lasticit\u00e9 ajustable, de leur transparence optique et de leur compatibilit\u00e9 avec des charges fonctionnelles. Les composites \u00e0 base de PAM incorporant des nanoparticules ou des additifs conducteurs permettent le d\u00e9veloppement de capteurs souples capables de d\u00e9tecter des d\u00e9formations m\u00e9caniques, des signaux biochimiques ou des stimuli magn\u00e9tiques. Leur stabilit\u00e9 face \u00e0 des d\u00e9formations r\u00e9p\u00e9t\u00e9es les rend adapt\u00e9s aux plateformes portables de surveillance de la sant\u00e9 et de diagnostic.  <\/span><\/p>\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-892f73a elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"892f73a\" 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\">Pourquoi la visco\u00e9lasticit\u00e9 des hydrogels de polyacrylamide est-elle importante ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-05c6bea elementor-widget elementor-widget-text-editor\" data-id=\"05c6bea\" 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><span style=\"font-weight: 400\">Le comportement visco\u00e9lastique des hydrogels de polyacrylamide est d\u00e9terminant pour leurs performances dans les applications biologiques et fonctionnelles. La relaxation des contraintes en fonction du temps, le fluage et la dissipation d\u2019\u00e9nergie influencent la mani\u00e8re dont les cellules per\u00e7oivent les signaux m\u00e9caniques, la r\u00e9partition des charges au sein du mat\u00e9riau, ainsi que la r\u00e9ponse du gel \u00e0 des d\u00e9formations r\u00e9p\u00e9t\u00e9es ou prolong\u00e9es. Pour des applications allant de la culture cellulaire aux imitations de tissus mous, la compr\u00e9hension et le contr\u00f4le des propri\u00e9t\u00e9s visco\u00e9lastiques permettent de reproduire plus fid\u00e8lement la m\u00e9canique des tissus naturels et d\u2019am\u00e9liorer les performances pr\u00e9dictives dans des conditions dynamiques.  <\/span><\/p>\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-851f298 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"851f298\" 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\">M\u00e9thodes de caract\u00e9risation de la visco\u00e9lasticit\u00e9 des hydrogels de polyacrylamide<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-171be53 elementor-widget elementor-widget-text-editor\" data-id=\"171be53\" 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><span style=\"font-weight: 400\">Les propri\u00e9t\u00e9s m\u00e9caniques et visco\u00e9lastiques des hydrogels de PAM sont g\u00e9n\u00e9ralement \u00e9valu\u00e9es \u00e0 l\u2019aide de la rh\u00e9om\u00e9trie en masse, d\u2019essais de traction et d\u2019essais de compression. Ces techniques permettent d\u2019obtenir des mesures quantitatives du module d\u2019\u00e9lasticit\u00e9, des modules de stockage et de perte, ainsi que du comportement contrainte-d\u00e9formation. Cependant, les m\u00e9thodes traditionnelles n\u00e9cessitent souvent un contact direct, des d\u00e9formations relativement importantes ou une manipulation destructive des \u00e9chantillons. De ce fait, elles peuvent ne pas permettre de d\u00e9tecter les premi\u00e8res \u00e9tapes de la g\u00e9lification, les changements visco\u00e9lastiques subtils ou l\u2019\u00e9volution m\u00e9canique \u00e0 long terme dans des environnements hydrat\u00e9s ou st\u00e9riles.   <\/span><\/p>\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-1961b9f elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"1961b9f\" 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\">\u00c9tude de cas : Caract\u00e9risation m\u00e9canique d'un hydrogel de polyacrylamide \u00e0 l'aide d'ElastoSens\u2122 Bio<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4babf25 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"4babf25\" 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<h3 class=\"elementor-heading-title elementor-size-default\">ElastoSens\u2122 Bio : un outil non destructif permettant de mesurer les hydrogels souples de polyacrylamide<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a225c3 e-grid e-con-full e-con e-child\" data-id=\"5a225c3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ce43e5b elementor-widget elementor-widget-text-editor\" data-id=\"ce43e5b\" 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>L&rsquo; <a href=\"https:\/\/rheolution.com\/instrument-elastosensbio\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\"><strong>ElastoSens\u2122 Bio<\/strong><\/span><\/a> est un  <span style=\"font-weight: 400\">Instrument non destructif et sans contact, sp\u00e9cialement con\u00e7u pour caract\u00e9riser des mat\u00e9riaux souples tels que les hydrogels de polyacrylamide. Il fonctionne en induisant de l\u00e9g\u00e8res vibrations m\u00e9caniques dans l&rsquo;\u00e9chantillon et en analysant la r\u00e9ponse de r\u00e9sonance qui en r\u00e9sulte afin d&rsquo;extraire les propri\u00e9t\u00e9s visco\u00e9lastiques en temps r\u00e9el. Cette approche est tr\u00e8s sensible aux variations infimes de rigidit\u00e9 et convient parfaitement aux gels souples et fortement hydrat\u00e9s.  <\/span><\/p><p><span style=\"font-weight: 400\">Parmi ses principaux avantages figurent les essais non destructifs, la surveillance en temps r\u00e9el de la cin\u00e9tique de g\u00e9lification, une grande r\u00e9p\u00e9tabilit\u00e9 et la possibilit\u00e9 de mesurer un m\u00eame \u00e9chantillon au fil du temps sans compromettre sa st\u00e9rilit\u00e9. Le syst\u00e8me permet un suivi continu de l\u2019\u00e9volution m\u00e9canique, depuis la transition liquide-gel jusqu\u2019\u00e0 la rigidit\u00e9 finale, ce qui le rend particuli\u00e8rement utile pour l\u2019\u00e9tude de la polym\u00e9risation, du gonflement et de la stabilit\u00e9 \u00e0 long terme. <\/span><\/p>\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-045aef9 elementor-widget elementor-widget-image\" data-id=\"045aef9\" 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=\"968\" height=\"544\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?fit=968%2C544&amp;ssl=1\" class=\"attachment-large size-large wp-image-50364\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?w=968&amp;ssl=1 968w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?resize=133%2C75&amp;ssl=1 133w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?resize=480%2C270&amp;ssl=1 480w\" sizes=\"(max-width:767px) 700px, (max-width:968px) 100vw, 968px\" data-attachment-id=\"50364\" data-permalink=\"https:\/\/rheolution.com\/fr\/elastosens2-4-2-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?fit=968%2C544&amp;ssl=1\" data-orig-size=\"968,544\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"elastosens2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/elastosens2-1.webp?fit=968%2C544&amp;ssl=1\" \/>\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>\n\t\t\t\t<div class=\"elementor-element elementor-element-b87c673 elementor-widget elementor-widget-text-editor\" data-id=\"b87c673\" 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><span style=\"font-weight: 400\">Afin de d\u00e9montrer les capacit\u00e9s de l\u2019ElastoSens\u2122 Bio, nous avons r\u00e9alis\u00e9 une s\u00e9rie de tests sur des hydrogels \u00e0 base de polyacrylamide. La section suivante pr\u00e9sente les mat\u00e9riaux et les m\u00e9thodes utilis\u00e9s, puis expose les r\u00e9sultats, offrant ainsi un exemple concret de la capacit\u00e9 de l\u2019instrument \u00e0 surveiller de mani\u00e8re non destructive les propri\u00e9t\u00e9s visco\u00e9lastiques au fil du temps. <\/span><\/p>\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-ed23fc9 elementor-widget elementor-widget-heading\" data-id=\"ed23fc9\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Mat\u00e9riel et m\u00e9thodes<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d118051 elementor-widget elementor-widget-text-editor\" data-id=\"d118051\" 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><span style=\"font-weight: 400\">Des hydrogels de polyacrylamide (PAAm) ont \u00e9t\u00e9 pr\u00e9par\u00e9s en diluant une solution m\u00e8re d&rsquo;acrylamide \u00e0 40 % (37,5:1 ; Bio-Rad) dans de l\u2019eau d\u00e9ionis\u00e9e afin d\u2019obtenir des concentrations finales en polym\u00e8re de 5, 7,5, 10, 12,5 et 15 % (v\/v). La polym\u00e9risation a \u00e9t\u00e9 d\u00e9clench\u00e9e par l\u2019ajout, sous une hotte de laboratoire, de persulfate d\u2019ammonium (APS) \u00e0 10 % (p\/v) fra\u00eechement pr\u00e9par\u00e9 (1 % v\/v final) et de TEMED (0,2 % v\/v final), les concentrations d\u2019APS et de TEMED \u00e9tant maintenues constantes pour toutes les formulations. La solution de pr\u00e9curseur a \u00e9t\u00e9 m\u00e9lang\u00e9e rapidement, puis vers\u00e9e imm\u00e9diatement dans des bo\u00eetes de P\u00e9tri, avant d\u2019\u00eatre laiss\u00e9e \u00e0 polym\u00e9riser \u00e0 temp\u00e9rature ambiante. Au bout d\u2019environ 30 minutes, les bo\u00eetes ont \u00e9t\u00e9 scell\u00e9es (par exemple avec du Parafilm) afin de minimiser la d\u00e9shydratation, et les gels ont \u00e9t\u00e9 laiss\u00e9s \u00e0 durcir compl\u00e8tement pendant 24 heures \u00e0 temp\u00e9rature ambiante. Les gels ont ensuite \u00e9t\u00e9 d\u00e9coup\u00e9s aux dimensions requises pour le porte-\u00e9chantillon de volume microm\u00e9trique, et les formulations de PAAm (5 \u00e0 15 %) ont \u00e9t\u00e9 caract\u00e9ris\u00e9es \u00e0 l\u2019aide de l\u2019ElastoSens\u2122 Bio.    <\/span><\/p>\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-aa24bd0 elementor-widget elementor-widget-heading\" data-id=\"aa24bd0\" 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<h3 class=\"elementor-heading-title elementor-size-default\">R\u00e9sultats et discussion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54513af elementor-widget elementor-widget-text-editor\" data-id=\"54513af\" 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><span style=\"font-weight: 400\">L&rsquo;augmentation de la concentration en polyacrylamide (poly-A) de 5 % \u00e0 15 % (p\/v) a entra\u00een\u00e9 une augmentation du module de stockage en cisaillement (G\u2032), couvrant un \u00e9cart d&rsquo;un ordre de grandeur sur toute la plage test\u00e9e (figure 1). Les gels \u00e0 faible concentration (5 \u00e0 7,5 %) pr\u00e9sentaient des propri\u00e9t\u00e9s m\u00e9caniques relativement souples, tandis que les concentrations plus \u00e9lev\u00e9es (10 \u00e0 15 %) produisaient des r\u00e9seaux progressivement plus rigides, atteignant des valeurs de G\u2032 sup\u00e9rieures \u00e0 40 kPa \u00e0 15 % de poly-A. Dans toutes les conditions, les mesures se sont r\u00e9v\u00e9l\u00e9es hautement reproductibles, avec des \u00e9carts-types syst\u00e9matiquement inf\u00e9rieurs \u00e0 4 % (n = 3), ce qui d\u00e9montre la fiabilit\u00e9 de la caract\u00e9risation m\u00e9canique r\u00e9alis\u00e9e \u00e0 l\u2019aide du porte-\u00e9chantillon \u00e0 volume \u03bc de l\u2019ElastoSens\u2122 Bio. Cette tendance est pr\u00e9visible, car une concentration plus \u00e9lev\u00e9e en polym\u00e8re cr\u00e9e un r\u00e9seau plus dense comportant davantage d\u2019enchev\u00eatrements de cha\u00eenes et de liaisons transversales, ce qui augmente la r\u00e9ponse \u00e9lastique (G\u2032). Dans l\u2019ensemble, les donn\u00e9es d\u00e9montrent que l\u2019ElastoSens\u2122 Bio est capable de distinguer clairement les diff\u00e9rences de rigidit\u00e9 induites par la formulation de l\u2019hydrogel.    <\/span><\/p>\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-4a7f0ab elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"4a7f0ab\" 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 decoding=\"async\" width=\"1024\" height=\"678\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?fit=1024%2C678&amp;ssl=1\" class=\"attachment-large size-large wp-image-63317\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?w=1271&amp;ssl=1 1271w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?resize=300%2C199&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?resize=1024%2C678&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?resize=768%2C509&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?resize=113%2C75&amp;ssl=1 113w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?resize=700%2C464&amp;ssl=1 700w\" sizes=\"(max-width:767px) 700px, (max-width:1024px) 100vw, 1024px\" data-attachment-id=\"63317\" data-permalink=\"https:\/\/rheolution.com\/fr\/poly-a-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?fit=1271%2C842&amp;ssl=1\" data-orig-size=\"1271,842\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Poly-A\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Poly-A-.png?fit=1024%2C678&amp;ssl=1\" \/>\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-069025e elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"069025e\" 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><em><b>Figure 1.<\/b><span style=\"font-weight: 400\">  Module de stockage en cisaillement (G\u2032) des hydrogels de polyacrylamide (poly-A) en fonction de la concentration en polym\u00e8re (5 \u00e0 15 % p\/v), mesur\u00e9 \u00e0 l&rsquo;aide du porte-\u00e9chantillon \u00e0 volume micro de l&rsquo;ElastoSens\u2122 Bio. Les barres repr\u00e9sentent la moyenne \u00b1 l&rsquo;\u00e9cart-type (n = 3). <\/span><\/em><\/p>\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-8ad5968 elementor-widget elementor-widget-heading\" data-id=\"8ad5968\" 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<h3 class=\"elementor-heading-title elementor-size-default\">Conclusions et perspectives<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7d7a98 elementor-widget elementor-widget-text-editor\" data-id=\"b7d7a98\" 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><span style=\"font-weight: 400\">Les performances m\u00e9caniques des hydrogels de polyacrylamide \u2014 qui d\u00e9pendent de la densit\u00e9 de r\u00e9ticulation, du comportement au gonflement et de la visco\u00e9lasticit\u00e9 \u2014 sont essentielles \u00e0 leur utilisation dans les domaines biom\u00e9dical, des capteurs et des mat\u00e9riaux souples. En tant que syst\u00e8mes souples, fortement hydrat\u00e9s et modulables, les hydrogels de PAM n\u00e9cessitent une surveillance m\u00e9canique pr\u00e9cise sans alt\u00e9rer leur structure ni leur environnement. <\/span><\/p><ul><li><span style=\"font-weight: 400\">  Une technologie non destructive optimis\u00e9e pour les mat\u00e9riaux souples.<\/span><\/li><li><span style=\"font-weight: 400\">Haute sensibilit\u00e9 et grande r\u00e9p\u00e9tabilit\u00e9 sur de larges plages de rigidit\u00e9.<\/span><\/li><li><span style=\"font-weight: 400\">Suivi en temps r\u00e9el de la cin\u00e9tique de g\u00e9lification et de la transition liquide-gel.<\/span><\/li><li><span style=\"font-weight: 400\">Mesure directe de la rigidit\u00e9 finale du gel.<\/span><\/li><li><span style=\"font-weight: 400\">Essais longitudinaux sur le m\u00eame \u00e9chantillon dans des conditions d&rsquo;hydratation ou de st\u00e9rilit\u00e9.<\/span><\/li><li><span style=\"font-weight: 400\">Module de photostimulation disponible pour la surveillance en temps r\u00e9el de la photor\u00e9ticulation, le cas \u00e9ch\u00e9ant.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Ensemble, ces capacit\u00e9s permettent de mieux comprendre les relations structure-propri\u00e9t\u00e9, d&rsquo;am\u00e9liorer la reproductibilit\u00e9 et d&rsquo;assurer une transposition plus solide des syst\u00e8mes d&rsquo;hydrogels de polyacrylamide de la recherche fondamentale vers des applications concr\u00e8tes.<\/span><\/p>\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-794c36a elementor-widget elementor-widget-heading\" data-id=\"794c36a\" 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<h3 class=\"elementor-heading-title elementor-size-default\">R\u00e9f\u00e9rences<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27340c7 elementor-widget elementor-widget-text-editor\" data-id=\"27340c7\" 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><span style=\"font-weight: 400\">Sennakesavan, G., Mostakhdemin, M., Dkhar, L. K., Seyfoddin, A., &amp; Fatihhi, S. J. (2020). Acrylic acid\/acrylamide based hydrogels and its properties-A review.  <\/span>Polymer Degradation and Stability, 180, 109308.<\/p><p><span style=\"font-weight: 400\">Zainulabdeen, K., Younis, R. W., Jwad, R. S., Yusop, R. M., Yousif, E., &amp; Moneim, A. E. A. (2023). An overview of the biological activity of polyacrylamide hydrogels: Biological activities of hydrogels.  <\/span>Journal of Biotechnology Research Center, 17(2).<br \/><\/p><p><span style=\"font-weight: 400\">Awasthi, S., Gaur, J. K., Bobji, M. S., &amp; Srivastava, C. (2022). Nanoparticle-reinforced polyacrylamide hydrogel composites for clinical applications: A review.  <\/span>Journal of Materials Science, 57(17), 8041-8063.<\/p><p><span style=\"font-weight: 400\">Kandow, C. E., Georges, P. C., Janmey, P. A., &amp; Beningo, K. A. (2007). Polyacrylamide hydrogels for cell mechanics: steps toward optimization and alternative uses.  <\/span>Methods in cell biology, 83, 29\u201346.<\/p>\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-9383078 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"9383078\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;arrows&quot;,&quot;autoplay_speed&quot;:4000,&quot;transition_speed&quot;:4000,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;}\" data-widget_type=\"slides.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div 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class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>D\u00e9couvrez comment notre technologie permet de mesurer de mani\u00e8re non destructive les propri\u00e9t\u00e9s visco\u00e9lastiques des biomat\u00e9riaux souples et des tissus \u00e0 l&rsquo;aide de microvolumes d&rsquo;\u00e9chantillons<\/p>\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-c4ce1d0 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"c4ce1d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/rheolution.com\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contactez-nous pour plus 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premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"7000\" height=\"2322\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?fit=7000%2C2322&amp;ssl=1\" class=\"attachment-full size-full wp-image-63128\" alt=\"\" data-attachment-id=\"63128\" data-permalink=\"https:\/\/rheolution.com\/fr\/alginate-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?fit=7000%2C2322&amp;ssl=1\" data-orig-size=\"7000,2322\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ALGINATE\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?fit=1024%2C340&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?w=7000&amp;ssl=1 7000w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=300%2C100&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=1024%2C340&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=768%2C255&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=1536%2C510&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=2048%2C679&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=150%2C50&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?resize=700%2C232&amp;ssl=1 700w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?w=2440&amp;ssl=1 2440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?w=3660&amp;ssl=1 3660w\" sizes=\"(max-width:767px) 700px, (max-width:7000px) 100vw, 7000px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-dalginate\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Hydrogels d&rsquo;alginate<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-dalginate\/\" target=\"_blank\">\n\t\t\t\tHydrogels d&rsquo;alginate\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">Les hydrogels d'alginate sont des r\u00e9seaux polym\u00e8res tridimensionnels riches en eau, d\u00e9riv\u00e9s de l'alginate, un polysaccharide anionique d'origine naturelle. L'alginate est principalement extrait des parois cellulaires des algues brunes appartenant \u00e0 la classe des ph\u00e9ophyc\u00e9es, bien qu'il puisse \u00e9galement \u00eatre biosynth\u00e9tis\u00e9 par certaines esp\u00e8ces bact\u00e9riennes telles que les Azotobacter et les Pseudomonas. Sur le plan structurel, l\u2019alginate est un copolym\u00e8re lin\u00e9aire compos\u00e9 d\u2019acide \u03b2-D-mannuronique (unit\u00e9s M) et d\u2019acide \u03b1-L-guluronique (unit\u00e9s G), reli\u00e9s par des liaisons glycosidiques 1\u21924.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-dalginate\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Lire la suite \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"3\">\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"7875\" height=\"2612\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?fit=7875%2C2612&amp;ssl=1\" class=\"attachment-full size-full wp-image-63420\" alt=\"\" data-attachment-id=\"63420\" data-permalink=\"https:\/\/rheolution.com\/fr\/gelatin-methacrylate-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?fit=7875%2C2612&amp;ssl=1\" data-orig-size=\"7875,2612\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Gelatin Methacrylate\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?fit=1024%2C340&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?w=7875&amp;ssl=1 7875w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=300%2C100&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=1024%2C340&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=768%2C255&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=1536%2C509&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=2048%2C679&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=150%2C50&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?resize=700%2C232&amp;ssl=1 700w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?w=2440&amp;ssl=1 2440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-Methacrylate-1.jpg?w=3660&amp;ssl=1 3660w\" sizes=\"(max-width:767px) 700px, (max-width:7875px) 100vw, 7875px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/fr\/notes-application\/gelma-hydrogels\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Hydrogels GelMA<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/fr\/notes-application\/gelma-hydrogels\/\" target=\"_blank\">\n\t\t\t\tHydrogels GelMA\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">La g\u00e9latine m\u00e9thacryloyle (GelMA) est un hydrogel photor\u00e9ticulable d\u00e9riv\u00e9 de la g\u00e9latine, elle-m\u00eame obtenue par hydrolyse partielle du collag\u00e8ne, la principale prot\u00e9ine structurelle de la matrice extracellulaire (MEC). Le GelMA est synth\u00e9tis\u00e9 par r\u00e9action de la g\u00e9latine avec de l'anhydride m\u00e9thacrylique, ce qui permet d'introduire des groupes fonctionnels m\u00e9thacryloyle sur les r\u00e9sidus d'acides amin\u00e9s de la g\u00e9latine tout en pr\u00e9servant la plupart de ses motifs bioactifs natifs.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/fr\/notes-application\/gelma-hydrogels\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Lire la suite \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"3\">\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"7875\" height=\"2612\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?fit=7875%2C2612&amp;ssl=1\" class=\"attachment-full size-full wp-image-63388\" alt=\"\" data-attachment-id=\"63388\" data-permalink=\"https:\/\/rheolution.com\/fr\/polydimethylsiloxane-pdms-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?fit=7875%2C2612&amp;ssl=1\" data-orig-size=\"7875,2612\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Polydimethylsiloxane (PDMS)\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?fit=1024%2C340&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?w=7875&amp;ssl=1 7875w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=300%2C100&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=1024%2C340&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=768%2C255&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=1536%2C509&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=2048%2C679&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=150%2C50&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?resize=700%2C232&amp;ssl=1 700w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?w=2440&amp;ssl=1 2440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Polydimethylsiloxane-PDMS-1.jpg?w=3660&amp;ssl=1 3660w\" sizes=\"(max-width:767px) 700px, (max-width:7875px) 100vw, 7875px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/fr\/notes-application\/polymeres-pdms\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Polym\u00e8res PDMS<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/fr\/notes-application\/polymeres-pdms\/\" target=\"_blank\">\n\t\t\t\tPolym\u00e8res PDMS\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">Le polydim\u00e9thylsiloxane (PDMS) est un polym\u00e8re polysiloxane synth\u00e9tique compos\u00e9 d\u2019un squelette siloxane inorganique souple (\u2013Si\u2013O\u2013Si\u2013) comportant des groupes lat\u00e9raux m\u00e9thyle. Cette architecture inorganique-organique unique conf\u00e8re au PDMS une mobilit\u00e9 de cha\u00eene exceptionnelle, une tr\u00e8s basse temp\u00e9rature de transition vitreuse et un comportement \u00e9lastom\u00e8re stable sur une large plage de temp\u00e9ratures. Le PDMS est produit exclusivement par synth\u00e8se industrielle, impliquant g\u00e9n\u00e9ralement l\u2019hydrolyse et la condensation de chlorosilanes, suivies d\u2019une polym\u00e9risation par ouverture de cycle de siloxanes cycliques.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/fr\/notes-application\/polymeres-pdms\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Lire la suite \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t<div class=\"premium-blog-post-outer-container\" data-total=\"3\">\n\t\t\t<div class=\"premium-blog-post-container premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"7000\" height=\"2322\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?fit=7000%2C2322&amp;ssl=1\" class=\"attachment-full size-full wp-image-63016\" alt=\"\" data-attachment-id=\"63016\" data-permalink=\"https:\/\/rheolution.com\/fr\/gelatin-5-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?fit=7000%2C2322&amp;ssl=1\" data-orig-size=\"7000,2322\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"GELATIN\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?fit=1024%2C340&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?w=7000&amp;ssl=1 7000w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=300%2C100&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=1024%2C340&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=768%2C255&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=1536%2C510&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=2048%2C679&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=150%2C50&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?resize=700%2C232&amp;ssl=1 700w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?w=2440&amp;ssl=1 2440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN.jpg?w=3660&amp;ssl=1 3660w\" sizes=\"(max-width:767px) 700px, (max-width:7000px) 100vw, 7000px\" \/>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-overlay\">\n\t\t\t\t\t\t\t\t<a class=\"elementor-icon\" href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-gelatine\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Hydrogels de g\u00e9latine<\/span>\n\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-content-wrapper \">\n\n\t\t\t\t\t<div class=\"premium-blog-inner-container\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<h4 class=\"premium-blog-entry-title\">\n\t\t\t<a href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-gelatine\/\" target=\"_blank\">\n\t\t\t\tHydrogels de g\u00e9latine\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<div class=\"premium-blog-entry-meta\">\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t<div class=\"premium-blog-content-inner-wrapper\">\n\t\t<p class=\"premium-blog-post-content\">Les hydrogels de g\u00e9latine sont des r\u00e9seaux polym\u00e8res tridimensionnels gonfl\u00e9s d'eau, d\u00e9riv\u00e9s de la g\u00e9latine, un polypeptide naturel obtenu par hydrolyse partielle du collag\u00e8ne. Le collag\u00e8ne est l\u2019une des prot\u00e9ines structurelles les plus abondantes dans la matrice extracellulaire des tissus des mammif\u00e8res, et sa d\u00e9naturation donne naissance \u00e0 la g\u00e9latine, dont la structure mol\u00e9culaire lin\u00e9aire est riche en s\u00e9quences d\u2019acides amin\u00e9s de type Gly\u2013X\u2013Y, principalement compos\u00e9es de glycine, de proline et d\u2019hydroxyproline.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-gelatine\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Lire la suite \u00bb<\/a><\/div>\t\t<\/div>\n\t\t\t\t\t\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t<div class=\"premium-blog-footer\">\n\t\t\t\t\t\t\t<nav class=\"premium-blog-pagination-container\" role=\"navigation\" aria-label=\"Pagination\">\n\t\t\t\t<span aria-current=\"page\" class=\"page-numbers current\">1<\/span>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/fr\/wp-json\/wp\/v2\/posts\/65164\/page\/2\/\">2<\/a>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/fr\/wp-json\/wp\/v2\/posts\/65164\/page\/3\/\">3<\/a>\n<a class=\"next page-numbers\" href=\"https:\/\/rheolution.com\/fr\/wp-json\/wp\/v2\/posts\/65164\/page\/2\/\">Suivant \u00bb<\/a>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Les hydrogels de polyacrylamide (PAM) sont des r\u00e9seaux polym\u00e8res synth\u00e9tiques gonfl\u00e9s \u00e0 l&rsquo;eau, form\u00e9s \u00e0 partir de monom\u00e8res d&rsquo;acrylamide r\u00e9ticul\u00e9s chimiquement ou physiquement pour former une structure tridimensionnelle. Le polyacrylamide lui-m\u00eame est un polym\u00e8re organique compos\u00e9 de sous-unit\u00e9s d&rsquo;acrylamide r\u00e9p\u00e9titives ; lorsqu&rsquo;il est r\u00e9ticul\u00e9 en milieu aqueux, il forme des gels souples et fortement hydrat\u00e9s pr\u00e9sentant un comportement m\u00e9canique similaire \u00e0 celui des tissus. Les hydrogels de PAM sont enti\u00e8rement synth\u00e9tiques et produits industriellement, ce qui garantit une grande reproductibilit\u00e9 d&rsquo;un lot \u00e0 l&rsquo;autre ainsi que des propri\u00e9t\u00e9s ajustables.  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Polyacrylamide : Propri\u00e9t\u00e9s et M\u00e9canique<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les hydrogels de polyacrylamide, de leur structure et de leur g\u00e9lification \u00e0 leur comportement m\u00e9canique, leur visco\u00e9lasticit\u00e9 et leurs applications dans l&#039;ing\u00e9nierie tissulaire et l&#039;administration de m\u00e9dicaments.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-polyacrylamide\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydrogels de Polyacrylamide : Propri\u00e9t\u00e9s et M\u00e9canique\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez les hydrogels de polyacrylamide, de leur structure et de leur g\u00e9lification \u00e0 leur comportement 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