{"id":65174,"date":"2026-08-05T12:59:12","date_gmt":"2026-08-05T16:59:12","guid":{"rendered":"https:\/\/rheolution.com\/?p=65174"},"modified":"2026-08-13T14:30:47","modified_gmt":"2026-08-13T18:30:47","slug":"hydrogels-de-gelatine","status":"publish","type":"post","link":"https:\/\/rheolution.com\/fr\/notes-application\/hydrogels-de-gelatine\/","title":{"rendered":"Hydrogels de g\u00e9latine"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65174\" class=\"elementor elementor-65174 elementor-62748\" 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\u2019application | 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 g\u00e9latine : propri\u00e9t\u00e9s, applications et comportement m\u00e9canique\n<\/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>Scientifiques d\u2019application<\/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 g\u00e9latine ?<\/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 g\u00e9latine sont des r\u00e9seaux polym\u00e8res tridimensionnels gonfl\u00e9s d&rsquo;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 mammif\u00e8res, et sa d\u00e9naturation donne naissance \u00e0 de la g\u00e9latine dot\u00e9e d\u2019une structure mol\u00e9culaire lin\u00e9aire riche en s\u00e9quences d\u2019acides amin\u00e9s de type Gly\u2013X\u2013Y, principalement compos\u00e9es de glycine, de proline et d\u2019hydroxyproline. La g\u00e9latine provient g\u00e9n\u00e9ralement de tissus animaux tels que la peau de porc ou les os de bovin et est extraite par hydrolyse acide ou alcaline, ce qui donne des mat\u00e9riaux pr\u00e9sentant diff\u00e9rents points iso\u00e9lectriques et caract\u00e9ristiques de charge. En raison de son origine naturelle, de sa similitude biochimique avec la matrice extracellulaire native et de sa facilit\u00e9 de mise en \u0153uvre, la g\u00e9latine forme facilement des hydrogels largement utilis\u00e9s dans les applications biom\u00e9dicales et biotechnologiques.   <\/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 g\u00e9latine<\/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 g\u00e9latine se forment gr\u00e2ce \u00e0 une combinaison d\u2019interactions physiques et chimiques qui d\u00e9terminent la structure et la stabilit\u00e9 du r\u00e9seau. La g\u00e9latine native subit une g\u00e9lification thermor\u00e9versible induite par la renaturation partielle des triples h\u00e9lices de type collag\u00e8ne lors du refroidissement. Cependant, cette g\u00e9lification physique \u00e0 elle seule n\u2019offre qu\u2019une stabilit\u00e9 thermique et m\u00e9canique limit\u00e9e, ce qui justifie le recours \u00e0 des strat\u00e9gies de r\u00e9ticulation suppl\u00e9mentaires.  <\/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-e821974 elementor-widget elementor-widget-text-editor\" data-id=\"e821974\" 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\">Parmi les m\u00e9canismes courants de g\u00e9lification et de r\u00e9ticulation, on peut citer :<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">G\u00e9lification physique : formation d&rsquo;h\u00e9lices et liaisons hydrog\u00e8ne en fonction de la temp\u00e9rature.<\/span><span style=\"font-weight: 400\"><br><\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">R\u00e9ticulation chimique : liaison covalente r\u00e9alis\u00e9e \u00e0 l&rsquo;aide d&rsquo;agents de r\u00e9ticulation \u00e0 petites mol\u00e9cules ou par des r\u00e9actions enzymatiques.<\/span><span style=\"font-weight: 400\"><br><\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">R\u00e9ticulation enzymatique : formation de liaisons amides entre les cha\u00eenes de g\u00e9latine dans des conditions douces.<\/span><span style=\"font-weight: 400\"><br><\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Photor\u00e9ticulation : polym\u00e9risation photo-activ\u00e9e de d\u00e9riv\u00e9s de g\u00e9latine fonctionnalis\u00e9s.<\/span><\/li><\/ul>\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-8842651 elementor-widget elementor-widget-text-editor\" data-id=\"8842651\" 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 facteurs environnementaux tels que la temp\u00e9rature, le pH, la concentration en polym\u00e8re et la force ionique influencent fortement la formation du gel, la densit\u00e9 du r\u00e9seau et les propri\u00e9t\u00e9s finales de l&rsquo;hydrogel.<\/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 g\u00e9latine sont intrins\u00e8quement souples et visco\u00e9lastiques, ce qui refl\u00e8te leur nature polym\u00e9rique hydrat\u00e9e. Leur rigidit\u00e9 et leur \u00e9lasticit\u00e9 d\u00e9pendent de la concentration en g\u00e9latine, de la distribution du poids mol\u00e9culaire, du degr\u00e9 de r\u00e9ticulation et de l&rsquo;architecture du r\u00e9seau. La g\u00e9latine g\u00e9lifi\u00e9e physiquement pr\u00e9sente une faible stabilit\u00e9 m\u00e9canique et un ramollissement rapide \u00e0 des temp\u00e9ratures physiologiques, tandis que les syst\u00e8mes r\u00e9ticul\u00e9s chimiquement ou enzymatiquement affichent une rigidit\u00e9 accrue, une meilleure int\u00e9grit\u00e9 structurelle et une stabilit\u00e9 prolong\u00e9e. \u00c0 mesure que les hydrogels de g\u00e9latine se d\u00e9gradent par clivage enzymatique, leurs propri\u00e9t\u00e9s m\u00e9caniques \u00e9voluent au fil du temps, se traduisant g\u00e9n\u00e9ralement par un ramollissement progressif et une perte de capacit\u00e9 de charge. Ce comportement m\u00e9canique dynamique est particuli\u00e8rement pertinent pour les applications n\u00e9cessitant une d\u00e9gradation contr\u00f4l\u00e9e et un remodelage tissulaire.    <\/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\">Les hydrogels de g\u00e9latine pr\u00e9sentent d\u2019excellentes performances biologiques en raison de leur similitude biochimique avec les composants natifs de la matrice extracellulaire. Ils comportent naturellement des motifs favorisant l\u2019adh\u00e9sion cellulaire, notamment des s\u00e9quences arginine-glycine-acide aspartique (RGD), qui favorisent la fixation, l\u2019\u00e9talement et la migration des cellules. La g\u00e9latine est g\u00e9n\u00e9ralement biocompatible, pr\u00e9sente une faible immunog\u00e9nicit\u00e9 et favorise une viabilit\u00e9 cellulaire \u00e9lev\u00e9e pour un large \u00e9ventail de types cellulaires. Dans les environnements biologiques, la g\u00e9latine est d\u00e9grad\u00e9e par voie enzymatique par les m\u00e9talloprot\u00e9inases matricielles, ce qui permet un remodelage \u00e0 m\u00e9diation cellulaire et un remplacement progressif par du tissu nouvellement form\u00e9.   <\/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 g\u00e9latine<\/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\">En ing\u00e9nierie tissulaire, les hydrogels de g\u00e9latine servent de matrices offrant un soutien structurel tout en interagissant activement avec les cellules. Leurs propri\u00e9t\u00e9s m\u00e9caniques ajustables, leur d\u00e9gradabilit\u00e9 enzymatique et leur capacit\u00e9 \u00e0 favoriser l&rsquo;adh\u00e9rence cellulaire les rendent adapt\u00e9s \u00e0 la r\u00e9g\u00e9n\u00e9ration des tissus osseux, cartilagineux, musculaires, nerveux et cutan\u00e9s. Les hydrogels \u00e0 base de g\u00e9latine peuvent \u00eatre transform\u00e9s en supports poreux, en matrices injectables ou en structures imprim\u00e9es qui reproduisent fid\u00e8lement les microenvironnements tissulaires naturels.  <\/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 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\">Les hydrogels de g\u00e9latine sont largement utilis\u00e9s pour cr\u00e9er des syst\u00e8mes de culture cellulaire tridimensionnels qui reproduisent mieux les conditions in vivo que les substrats bidimensionnels traditionnels. Leur structure poreuse et hydrat\u00e9e facilite la diffusion des nutriments, l&rsquo;\u00e9limination des d\u00e9chets et les interactions intercellulaires. Ces propri\u00e9t\u00e9s permettent le d\u00e9veloppement de mod\u00e8les pathologiques physiologiquement pertinents, notamment des microenvironnements tumoraux et des cocultures stromales, favorisant ainsi la viabilit\u00e9 cellulaire \u00e0 long terme et le comportement fonctionnel des cellules.  <\/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\">D\u00e9livrance 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\">La g\u00e9latine se d\u00e9gradant par voie enzymatique et pouvant interagir avec des biomol\u00e9cules charg\u00e9es, les hydrogels de g\u00e9latine constituent des supports efficaces pour l\u2019administration contr\u00f4l\u00e9e de m\u00e9dicaments, de g\u00e8nes, de facteurs de croissance et de cellules vivantes. La cin\u00e9tique de lib\u00e9ration peut \u00eatre ajust\u00e9e en fonction de la densit\u00e9 de r\u00e9ticulation, de la composition de l\u2019hydrogel et de l\u2019architecture du r\u00e9seau, ce qui permet une administration th\u00e9rapeutique prolong\u00e9e et localis\u00e9e. Les hydrogels de g\u00e9latine injectables pr\u00e9sentent un int\u00e9r\u00eat particulier pour les traitements mini-invasifs et les th\u00e9rapies r\u00e9g\u00e9n\u00e9ratives.  <\/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 g\u00e9latine 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\">Les hydrogels de g\u00e9latine pr\u00e9sentent un comportement visco\u00e9lastique marqu\u00e9, alliant le stockage d\u2019\u00e9nergie \u00e9lastique \u00e0 une relaxation des contraintes en fonction du temps. Cette visco\u00e9lasticit\u00e9 joue un r\u00f4le essentiel dans la mani\u00e8re dont les cellules per\u00e7oivent les signaux m\u00e9caniques, remod\u00e8lent leur environnement et r\u00e9gulent des processus tels que la migration, la diff\u00e9renciation et le d\u00e9p\u00f4t de matrice. D\u2019un point de vue fonctionnel, la visco\u00e9lasticit\u00e9 influe sur la dissipation des charges, la stabilit\u00e9 m\u00e9canique et la durabilit\u00e9 sous des sollicitations cycliques ou dynamiques. Il est donc essentiel de comprendre et de contr\u00f4ler la r\u00e9ponse visco\u00e9lastique des hydrogels de g\u00e9latine afin de concevoir des environnements biomim\u00e9tiques reproduisant fid\u00e8lement la m\u00e9canique des tissus natifs et de pr\u00e9dire les performances \u00e0 long terme dans les applications biom\u00e9dicales.   <\/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 g\u00e9latine<\/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 g\u00e9latine sont g\u00e9n\u00e9ralement \u00e9valu\u00e9es \u00e0 l\u2019aide de la rh\u00e9om\u00e9trie en masse, d\u2019essais de compression, d\u2019essais de traction et de m\u00e9thodes bas\u00e9es sur l\u2019indentation. Ces techniques permettent de mesurer le module d\u2019\u00e9lasticit\u00e9, les modules de stockage et de perte, ainsi que le comportement \u00e0 la rupture. Cependant, les approches traditionnelles n\u00e9cessitent souvent un contact physique, des d\u00e9formations importantes ou une manipulation destructive des \u00e9chantillons. De ce fait, leur capacit\u00e9 \u00e0 suivre la cin\u00e9tique de g\u00e9lification, \u00e0 identifier les points de transition liquide-gel ou \u00e0 suivre l\u2019\u00e9volution m\u00e9canique au fil du temps au sein d\u2019un m\u00eame \u00e9chantillon est limit\u00e9e, en particulier dans des conditions st\u00e9riles ou en pr\u00e9sence de cellules.   <\/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 g\u00e9latine \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 de g\u00e9latine souples<\/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> <span style=\"font-weight: 400\">il s&rsquo;agit d&rsquo;une plateforme de caract\u00e9risation m\u00e9canique non destructive sp\u00e9cialement con\u00e7ue pour les mat\u00e9riaux souples et fortement hydrat\u00e9s, tels que les hydrogels de g\u00e9latine. Elle fonctionne en induisant de l\u00e9g\u00e8res vibrations m\u00e9caniques et en mesurant la r\u00e9ponse de r\u00e9sonance qui en r\u00e9sulte, ce qui permet de d\u00e9terminer avec pr\u00e9cision les propri\u00e9t\u00e9s visco\u00e9lastiques sans contact direct ni endommagement de l&rsquo;\u00e9chantillon. Cette approche est parfaitement adapt\u00e9e aux hydrogels souples, offrant une sensibilit\u00e9 et une r\u00e9p\u00e9tabilit\u00e9 \u00e9lev\u00e9es sur une large plage de valeurs de rigidit\u00e9. L\u2019instrument permet de suivre en temps r\u00e9el la cin\u00e9tique de g\u00e9lification, d\u2019identifier le point de transition liquide-gel et de mesurer la rigidit\u00e9 finale de l\u2019hydrogel. Comme un m\u00eame \u00e9chantillon peut \u00eatre test\u00e9 \u00e0 plusieurs reprises au fil du temps, ElastoSens\u2122 Bio prend en charge les \u00e9tudes longitudinales de l\u2019\u00e9volution m\u00e9canique dans des conditions contr\u00f4l\u00e9es ou st\u00e9riles, ce qui le rend particuli\u00e8rement utile pour les hydrogels de g\u00e9latine contenant des cellules et subissant un remodelage dynamique.    <\/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 g\u00e9latine. 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\u2019appareil \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\">La g\u00e9latine de type B issue de peau bovine (Sigma-Aldrich, \u00c9tats-Unis) a \u00e9t\u00e9 pr\u00e9par\u00e9e \u00e0 une concentration de 15 % (p\/v) en dispersant la poudre dans de l&rsquo;eau d\u00e9ionis\u00e9e, puis en chauffant le m\u00e9lange jusqu&rsquo;\u00e0 \u00e9bullition (95\u2013100 \u00b0C) sous agitation continue jusqu&rsquo;\u00e0 dissolution compl\u00e8te. La solution a ensuite \u00e9t\u00e9 maintenue \u00e0 60 \u00b0C dans un bain-marie afin de conserver son \u00e9tat liquide avant la mesure. Les mesures de g\u00e9lification ont \u00e9t\u00e9 r\u00e9alis\u00e9es \u00e0 l\u2019aide d\u2019un syst\u00e8me ElastoSens\u2122 Bio \u00e9quip\u00e9 d\u2019un porte-\u00e9chantillon macro (6 ml par essai). La chambre thermique de l\u2019instrument a \u00e9t\u00e9 r\u00e9gl\u00e9e \u00e0 15 \u00b0C, et les propri\u00e9t\u00e9s visco\u00e9lastiques ont \u00e9t\u00e9 enregistr\u00e9es pendant 120 minutes avec un intervalle d\u2019acquisition de 5 secondes.   <\/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\">\u00c0 15 \u00b0C, une g\u00e9latine \u00e0 15 % (p\/v) a pr\u00e9sent\u00e9 le profil de g\u00e9lification attendu : la valeur de G\u2032 est rest\u00e9e faible au d\u00e9part, puis a augment\u00e9 au cours de la transition sol-gel avant d\u2019atteindre un plateau au cours de la p\u00e9riode de 120 minutes (figure 1, \u00e0 gauche). Les mesures finales ont confirm\u00e9 un comportement de type solide, avec G\u2032 = 11 719 \u00b1 1 780 Pa et G\u2033 = 888 \u00b1 47,8 Pa \u00e0 15 \u00b0C (moyenne \u00b1 \u00e9cart-type, n = 3 ; figure 1, \u00e0 droite), ce qui correspond \u00e0 un faible rapport d\u2019amortissement (tan \u03b4 \u2248 0,076) et \u00e0 un r\u00e9seau \u00e0 pr\u00e9dominance \u00e9lastique. La g\u00e9lification de la g\u00e9latine peut \u00eatre facilement ajust\u00e9e en modifiant les param\u00e8tres exp\u00e9rimentaux \u2014 notamment la concentration en polym\u00e8re, la temp\u00e9rature\/vitesse de refroidissement et la g\u00e9om\u00e9trie de l\u2019\u00e9chantillon\/le transfert thermique \u2014 qui modifient \u00e0 la fois (i) la cin\u00e9tique de g\u00e9lification (temps n\u00e9cessaire pour atteindre la transition\/le plateau) et (ii) la rigidit\u00e9 au plateau (G\u2032), ce qui permet d\u2019adapter la formulation pour obtenir soit une prise plus rapide, soit une r\u00e9sistance m\u00e9canique finale plus \u00e9lev\u00e9e, en fonction de l\u2019application.    <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-04b5520 e-grid e-con-full e-con e-child\" data-id=\"04b5520\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a2fe99a elementor-widget elementor-widget-image\" data-id=\"a2fe99a\" 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=\"695\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?fit=1024%2C695&amp;ssl=1\" class=\"attachment-large size-large wp-image-62753\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?w=1246&amp;ssl=1 1246w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?resize=300%2C204&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?resize=1024%2C695&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?resize=768%2C521&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?resize=110%2C75&amp;ssl=1 110w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?resize=700%2C475&amp;ssl=1 700w\" sizes=\"(max-width:767px) 700px, (max-width:1024px) 100vw, 1024px\" data-attachment-id=\"62753\" data-permalink=\"https:\/\/rheolution.com\/fr\/gelatin-g-kinetics-full-curve-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?fit=1246%2C846&amp;ssl=1\" data-orig-size=\"1246,846\" 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 &amp;#8211; G&amp;rsquo; kinetics &amp;#8211; full curve\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/GELATIN-G-kinetics-full-curve.png?fit=1024%2C695&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-a351799 elementor-widget elementor-widget-image\" data-id=\"a351799\" 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=\"699\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?fit=1024%2C699&amp;ssl=1\" class=\"attachment-large size-large wp-image-62761\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?w=1113&amp;ssl=1 1113w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?resize=300%2C205&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?resize=1024%2C699&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?resize=768%2C524&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?resize=110%2C75&amp;ssl=1 110w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?resize=700%2C478&amp;ssl=1 700w\" sizes=\"(max-width:767px) 700px, (max-width:1024px) 100vw, 1024px\" data-attachment-id=\"62761\" data-permalink=\"https:\/\/rheolution.com\/fr\/gelatin-15-g-bar-graph-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?fit=1113%2C760&amp;ssl=1\" data-orig-size=\"1113,760\" 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 15% &amp;#8211; G&amp;rsquo; Bar graph\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/Gelatin-15-G-Bar-graph.png?fit=1024%2C699&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-39e927a elementor-widget elementor-widget-text-editor\" data-id=\"39e927a\" 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\">  Cin\u00e9tique de g\u00e9lification en fonction du temps d\u2019une g\u00e9latine \u00e0 15 % (p\/v), mesur\u00e9e sur 120 minutes \u00e0 15 \u00b0C (\u00e0 gauche ; moyenne \u00b1 \u00e9cart-type, lignes pointill\u00e9es) et modules visco\u00e9lastiques finaux \u00e0 15 \u00b0C (\u00e0 droite ; module de stockage G\u2032 et module de perte G\u2033, 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\">Le comportement m\u00e9canique des hydrogels de g\u00e9latine \u2014 d\u00e9termin\u00e9 par leur visco\u00e9lasticit\u00e9, leur g\u00e9lification thermor\u00e9versible et leur stabilit\u00e9 d\u00e9pendante de la r\u00e9ticulation \u2014 est essentiel \u00e0 leurs performances dans les syst\u00e8mes biom\u00e9dicaux. En tant que mat\u00e9riaux souples, hydrat\u00e9s et en \u00e9volution dynamique, les hydrogels de g\u00e9latine n\u00e9cessitent une surveillance m\u00e9canique non invasive. <\/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-aed2e2d elementor-widget elementor-widget-text-editor\" data-id=\"aed2e2d\" 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<ul><li style=\"font-weight: 400\"><b>ElastoSens\u2122 Bio<\/b><span style=\"font-weight: 400\"> permet une caract\u00e9risation visco\u00e9lastique non destructive sp\u00e9cialement adapt\u00e9e aux syst\u00e8mes mous \u00e0 base de g\u00e9latine.<\/span><span style=\"font-weight: 400\"><br><\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Sa grande sensibilit\u00e9 et sa r\u00e9p\u00e9tabilit\u00e9 permettent de mesurer avec pr\u00e9cision la cin\u00e9tique de g\u00e9lification, la transition liquide-gel et la rigidit\u00e9 finale.<\/span><span style=\"font-weight: 400\"><br><\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">La r\u00e9alisation d&rsquo;essais longitudinaux sur un m\u00eame \u00e9chantillon permet d&rsquo;\u00e9tudier l&rsquo;\u00e9volution des propri\u00e9t\u00e9s m\u00e9caniques dans des conditions st\u00e9riles ou en pr\u00e9sence de cellules.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Un module de photostimulation int\u00e9gr\u00e9 permet de surveiller en temps r\u00e9el la photor\u00e9ticulation dans des syst\u00e8mes \u00e0 base de g\u00e9latine fonctionnalis\u00e9e (par exemple, le GelMA).<\/span><\/li><\/ul>\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-afd54d4 elementor-widget elementor-widget-text-editor\" data-id=\"afd54d4\" 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\">Ensemble, ces capacit\u00e9s permettent d&rsquo;am\u00e9liorer le contr\u00f4le, la reproductibilit\u00e9 et la transposition des plateformes \u00e0 base d&rsquo;hydrogel de g\u00e9latine dans le domaine de la recherche et des applications biom\u00e9dicales.<\/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\">Lukin, I., Erezuma, I., Maeso, L., Zarate, J., Desimone, M. F., Al-Tel, T. H., &#8230; &amp; Orive, G. (2022). Progress in gelatin as biomaterial for tissue engineering.  <\/span>Pharmaceutics, 14(6), 1177.<\/p><p><span style=\"font-weight: 400\">Jaipan, P., Nguyen, A., &amp; Narayan, R. J. (2017). Gelatin-based hydrogels for biomedical applications.  <\/span>Mrs Communications, 7(3), 416-426.<\/p><p><span style=\"font-weight: 400\">Bello, A. B., Kim, D., Kim, D., Park, H., &amp; Lee, S. H. (2020). Engineering and functionalization of gelatin biomaterials: From cell culture to medical applications.  <\/span>Tissue Engineering Part B: Reviews, 26(2), 164-180.<\/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 mesure de mani\u00e8re non destructive les propri\u00e9t\u00e9s visco\u00e9lastiques des biomat\u00e9riaux mous et des tissus en utilisant des micro-volumes d\u2019\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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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\/65174\/page\/2\/\">2<\/a>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/fr\/wp-json\/wp\/v2\/posts\/65174\/page\/3\/\">3<\/a>\n<a class=\"next page-numbers\" href=\"https:\/\/rheolution.com\/fr\/wp-json\/wp\/v2\/posts\/65174\/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 g\u00e9latine sont des r\u00e9seaux polym\u00e8res tridimensionnels gonfl\u00e9s d&rsquo;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>\n","protected":false},"author":195401359,"featured_media":63016,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[285,333],"tags":[89,124,88,261],"class_list":["post-65174","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notes-application","category-polymer-library","tag-elastosens-bio","tag-life-sciences","tag-mechanical-testing","tag-polymer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydrogels de 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