{"id":65650,"date":"2026-01-22T16:55:30","date_gmt":"2026-01-22T21:55:30","guid":{"rendered":"https:\/\/rheolution.com\/?p=65650"},"modified":"2026-08-14T10:13:03","modified_gmt":"2026-08-14T14:13:03","slug":"pga-polimeri","status":"publish","type":"post","link":"https:\/\/rheolution.com\/it\/note-applicative\/pga-polimeri\/","title":{"rendered":"PGA Polymers"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65650\" class=\"elementor elementor-65650 elementor-63282\" 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\">Nota applicativa | 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\">Polimeri PGA: propriet\u00e0, applicazioni e comportamento meccanico<\/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>di <a href=\"https:\/\/www.linkedin.com\/in\/mayasalame\/\">Maya Salame<\/a> e <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas%C3%A3o-049002a2\/\">Dimitria Camasao<\/a><\/p><p>Ricercatori applicativi<\/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\">Cos\u2019\u00e8 il polimero PGA?<\/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\">Il poli(acido glicolico) (PGA) \u00e8 un poliestere alifatico sintetico che fa parte della famiglia dei poli(\u03b1-idrossiacidi). Viene prodotto interamente tramite sintesi chimica industriale ed \u00e8 caratterizzato da una semplice unit\u00e0 ripetitiva di acido glicolico collegata da legami estere. Il PGA \u00e8 altamente cristallino e idrofilo, caratteristiche che lo distinguono dai poliesteri biodegradabili a lui strettamente correlati, come il PLA e il PLGA. Il suo prodotto di degradazione, l\u2019acido glicolico, \u00e8 un metabolita presente in natura che pu\u00f2 essere metabolizzato attraverso le normali vie fisiologiche.   <\/span><\/p><p><span style=\"font-weight: 400\">Il PGA viene sintetizzato a partire dall&#8217;acido glicolico o dal suo dimero ciclico, il glicolide. A causa della sua tendenza a degradarsi e della sua solubilit\u00e0 limitata, la produzione di PGA ad alto peso molecolare \u00e8 tecnicamente complessa e ha portato allo sviluppo di diverse strategie di polimerizzazione su misura per ottenere prestazioni meccaniche sufficienti per l&#8217;uso biomedico. <\/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\">Propriet\u00e0 principali dei polimeri PGA<\/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\">Caratteristiche fisico-chimiche<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-454b0e3 elementor-widget elementor-widget-text-editor\" data-id=\"454b0e3\" 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 formazione del PGA si basa su meccanismi di polimerizzazione a crescita graduale o ad apertura di anello, e le propriet\u00e0 finali dipendono fortemente dal peso molecolare e dalla cristallinit\u00e0.<\/span><\/p><p><b>I processi di polimerizzazione e le vie di sintesi includono:<\/b><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Polimerizzazione con apertura dell&#8217;anello del glicolide.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Policondensazione diretta dell&#8217;acido glicolico.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Policondensazione azeotropica per rimuovere l&#8217;acqua durante la sintesi.<\/span><\/li><li style=\"font-weight: 400\">Policondensazione allo stato solido degli alogenoacetati.<\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Procedimenti di polimerizzazione catalizzati da acidi o enzimi.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Il PGA presenta un\u2019elevata cristallinit\u00e0 (in genere del 45\u201355%), una temperatura di transizione vetrosa vicina alla temperatura fisiologica e un punto di fusione elevato. Il suo impacchettamento molecolare denso ne limita la solubilit\u00e0 nella maggior parte dei solventi organici comuni, influenzando sia la lavorazione che la caratterizzazione. <\/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\">Propriet\u00e0 meccaniche<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4476bec elementor-widget elementor-widget-text-editor\" data-id=\"4476bec\" 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\">Il PGA \u00e8 uno dei poliesteri biodegradabili pi\u00f9 rigidi utilizzati nelle applicazioni biomediche. Il suo comportamento meccanico dipende principalmente dalla sua cristallinit\u00e0 e dal suo peso molecolare. <\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Modulo di elasticit\u00e0 e resistenza alla trazione elevati rispetto ad altri polimeri riassorbibili.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Basso allungamento a rottura grazie alla sua struttura cristallina.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">La stabilit\u00e0 meccanica aumenta con il peso molecolare e la cristallinit\u00e0.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Rapida perdita di integrit\u00e0 meccanica durante la degradazione idrolitica.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Man mano che il degrado avanza, il PGA subisce un\u2019erosione di massa, che porta a un rapido calo della rigidit\u00e0 e della resistenza, spesso nel giro di poche settimane in condizioni fisiologiche.<\/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\">Interazioni biologiche<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62fefea elementor-widget elementor-widget-text-editor\" data-id=\"62fefea\" 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\">Il PGA \u00e8 generalmente considerato biocompatibile e bioriassorbibile.<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Si degrada principalmente per scissione idrolitica dei legami estere.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Pu\u00f2 anche subire una degradazione enzimatica in presenza di esterasi.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">La degradazione produce acido glicolico, che entra nelle vie metaboliche.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Una rapida degradazione pu\u00f2 far scendere localmente il pH e scatenare reazioni infiammatorie.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Senza una modifica della superficie, l&#8217;adesione cellulare al PGA \u00e8 in genere limitata, e le risposte biologiche sono fortemente influenzate dall&#8217;architettura dello scaffold, dalla velocit\u00e0 di degradazione e dai sottoprodotti.<\/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\">Applicazioni dei polimeri PGA<\/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\">Ingegneria dei tessuti<\/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\">Il PGA \u00e8 stato ampiamente utilizzato come materiale per scaffold temporanei nell\u2019ingegneria tissutale grazie alla sua elevata resistenza meccanica iniziale e alla biodegradabilit\u00e0 prevedibile. \u00c8 stato impiegato in scaffold per ossa, cartilagini, tendini, legamenti, vasi sanguigni e tessuti molli, spesso sotto forma di rete fibrosa o non tessuta. Gli scaffold in PGA vengono comunemente combinati con altri polimeri o rivestimenti per rallentare la degradazione e migliorare l\u2019adesione cellulare, mantenendo al contempo l\u2019integrit\u00e0 strutturale durante le prime fasi della rigenerazione tissutale.  <\/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\">Coltura cellulare 3D e modelli di malattia<\/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\">Nei sistemi di coltura tridimensionali, le reti in fibra di PGA e gli scaffold porosi sono stati utilizzati per favorire l&#8217;organizzazione cellulare e la formazione di costrutti simili ai tessuti. La sua rapida degradazione rende il PGA particolarmente adatto ai modelli di coltura a breve termine in cui si desidera che lo scaffold venga sostituito da una matrice extracellulare appena sintetizzata. I costrutti a base di PGA sono stati studiati per analizzare lo sviluppo e il rimodellamento dei tessuti in ambienti meccanici dinamici.  <\/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\">Somministrazione di farmaci, geni e cellule<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac87f2a elementor-widget elementor-widget-text-editor\" data-id=\"ac87f2a\" 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\">Il PGA \u00e8 stato utilizzato in sistemi di rilascio controllato, in particolare come suture riassorbibili e vettori temporanei per agenti bioattivi. Il rilascio del farmaco dalle matrici di PGA dipende dalla degradazione del polimero, dalla cristallinit\u00e0 e dalla distribuzione del peso molecolare. Anche se la sua rapida idrolisi limita le applicazioni di rilascio a lungo termine, il PGA rimane comunque utile per il rilascio di breve durata e come componente in sistemi di rilascio compositi.  <\/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\">Perch\u00e9 la viscoelasticit\u00e0 dei polimeri PGA \u00e8 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\">Anche se il PGA viene spesso considerato un polimero rigido, il suo comportamento viscoelastico cambia notevolmente nel tempo a causa della degradazione. I cambiamenti nella rigidit\u00e0, nello smorzamento e nel rilassamento meccanico influenzano direttamente il trasferimento del carico, la stabilit\u00e0 dello scaffold e la risposta dei tessuti. Monitorare le propriet\u00e0 viscoelastiche \u00e8 fondamentale per capire come si comportano le strutture a base di PGA durante l\u2019impianto, la rigenerazione dei tessuti o la coltura in vitro, soprattutto perch\u00e9 l\u2019integrit\u00e0 meccanica diminuisce rapidamente con l\u2019idrolisi.  <\/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\">Metodi per caratterizzare la viscoelasticit\u00e0 dei polimeri PGA<\/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\">La caratterizzazione meccanica del PGA si basa in genere su tecniche distruttive o a contatto, come ad esempio:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Prova di trazione<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Prova di compressione<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Analisi meccanica dinamica<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reometria convenzionale per forme fuse o lavorate<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Questi metodi spesso comportano la distruzione del campione, offrono una risoluzione temporale limitata e non sono adatti a monitorare il degrado o l\u2019evoluzione meccanica in ambienti idratati o sterili. Di conseguenza, forniscono solo misurazioni istantanee, anzich\u00e9 una visione continua del comportamento nel tempo. <\/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\">ElastoSens\u2122 Bio: uno strumento non distruttivo per misurare i polimeri PGA morbidi<\/h2>\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><span style=\"font-weight: 400\"><a href=\"https:\/\/rheolution.com\/instrument-elastosensbio\/\" target=\"_blank\" rel=\"noopener\"><strong>ElastoSens\u2122 Bio <\/strong><\/a><\/span><span style=\"font-weight: 400\">\u00e8 uno strumento basato sulla risonanza, progettato per la caratterizzazione viscoelastica non distruttiva di sistemi polimerici morbidi e in evoluzione.<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Misura il modulo di taglio in tempo reale senza entrare in contatto con il campione n\u00e9 danneggiarlo.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Altamente sensibile e riproducibile, adatto a rilevare cambiamenti meccanici nelle fasi iniziali.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Permette di monitorare costantemente l&#8217;evoluzione meccanica del PGA durante la degradazione.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Permette di effettuare misurazioni ripetute sullo stesso campione in condizioni di idratazione o in ambiente sterile.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Compatibile con processi dinamici come la polimerizzazione o il rilassamento strutturale.<\/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-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-43562\" 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=\"43562\" data-permalink=\"https:\/\/rheolution.com\/it\/elastosens2-4-2-2\/\" 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-4c4f175 elementor-widget elementor-widget-text-editor\" data-id=\"4c4f175\" 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\">Per i sistemi morbidi a base di PGA, ElastoSens\u2122 Bio offre uno strumento efficace per rilevare la perdita di rigidit\u00e0 nel tempo e le transizioni viscoelastiche che determinano le prestazioni funzionali nelle applicazioni biomediche e di ricerca.<\/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-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\">Conclusioni e prospettive<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b86e41a elementor-widget elementor-widget-text-editor\" data-id=\"b86e41a\" 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 prestazioni meccaniche del PGA \u2014 determinate dalla sua cristallinit\u00e0, dal peso molecolare e dalla rapida degradazione \u2014 sono fondamentali per il suo funzionamento nei sistemi biomedici e nei polimeri morbidi. Quando viene trasformato in strutture idratate, porose o composite, il PGA mostra un\u2019evoluzione viscoelastica che varia nel tempo e che va monitorata senza alterare n\u00e9 il materiale n\u00e9 l\u2019ambiente. La caratterizzazione viscoelastica non distruttiva con ElastoSens\u2122 Bio permette di:  <\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Misure altamente sensibili e ripetibili, pensate appositamente per sistemi basati su PGA, morbidi e in continua evoluzione.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Monitoraggio in tempo reale della formazione dei polimeri o della stabilizzazione strutturale iniziale.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Identificazione delle transizioni da un comportamento di tipo liquido a uno di tipo solido, quando applicabile.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Quantificazione della rigidit\u00e0 finale e del decadimento meccanico durante la degradazione.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Test longitudinali sullo stesso campione nel corso del tempo, anche in condizioni sterili.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Tutte queste caratteristiche, nel loro insieme, aiutano a capire meglio le relazioni tra struttura e propriet\u00e0 del PGA e a controllare meglio le sue prestazioni meccaniche nella ricerca e nelle applicazioni biomediche.<\/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\">Riferimenti<\/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><a href=\"https:\/\/link.springer.com\/article\/10.1007\/s10965-020-02187-1\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Budak, K., Sogut, O., &amp; Aydemir Sezer, U. (2020). A review on synthesis and biomedical applications of polyglycolic acid.  <\/span>Journal of polymer research, 27(8), 208.<\/a><\/p><p><a href=\"https:\/\/4spepublications.onlinelibrary.wiley.com\/doi\/10.1002\/pen.25508\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Low, Y. J., Andriyana, A., Ang, B. C., &amp; Zainal Abidin, N. I. (2020). Bioresorbable and degradable behaviors of PGA: Current state and future prospects.<br \/>  <\/span>Polymer Engineering &amp; Science, 60(11), 2657-2675.<\/a><\/p><p><a href=\"https:\/\/www.mdpi.com\/1996-1944\/17\/1\/15\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Cai, M., Han, Y., Zheng, X., Xue, B., Zhang, X., Mahmut, Z., &#8230; &amp; Sun, J. (2024). Synthesis of poly-\u03b3-glutamic acid and its application in biomedical materials.  <\/span>Materials, 17(1), 15.<\/a><\/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 class=\"elementor-swiper\">\n\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slides\" dir=\"ltr\" data-animation=\"fadeInUp\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-c97f30c swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"elastosens2\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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-8cce0c6 elementor-widget__width-initial elementor-widget-mobile__width-inherit elementor-widget elementor-widget-text-editor\" data-id=\"8cce0c6\" 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>Scopri come la nostra tecnologia misura in modo non distruttivo le propriet\u00e0 viscoelastiche dei biomateriali morbidi e dei tessuti utilizzando microvolumi di campioni<\/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\">Contattaci per saperne di pi\u00f9<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\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-efbb293 elementor-widget elementor-widget-heading\" data-id=\"efbb293\" 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<p class=\"elementor-heading-title elementor-size-default\">Articoli correlati<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f623a9 premium-blog-cta-full-yes premium-floating-effects-yes premium-disable-fe-yes elementor-widget__width-initial premium-blog-align-left elementor-widget elementor-widget-premium-addon-blog\" data-id=\"3f623a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;force_height&quot;:&quot;true&quot;,&quot;premium_blog_grid&quot;:&quot;yes&quot;,&quot;premium_blog_layout&quot;:&quot;even&quot;,&quot;premium_blog_columns_number&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_tablet&quot;:&quot;50%&quot;,&quot;premium_blog_columns_number_mobile&quot;:&quot;100%&quot;,&quot;scroll_to_offset&quot;:&quot;yes&quot;,&quot;premium_fe_trigger&quot;:&quot;load&quot;,&quot;premium_fe_direction&quot;:&quot;alternate&quot;,&quot;premium_fe_loop&quot;:&quot;default&quot;,&quot;premium_fe_easing&quot;:&quot;easeInOutSine&quot;}\" data-widget_type=\"premium-addon-blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t\n\n\t\t\t\t<div class=\"premium-blog-wrap  premium-blog-even\" data-page=\"65650\" data-pagination=\"true\">\n\t\t\t\t\t\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 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-63130\" alt=\"\" data-attachment-id=\"63130\" data-permalink=\"https:\/\/rheolution.com\/it\/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\/it\/note-applicative\/idrogel-di-alginato\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Idrogel di alginato<\/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\/it\/note-applicative\/idrogel-di-alginato\/\" target=\"_blank\">\n\t\t\t\tIdrogel di alginato\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\">Gli idrogel di alginato sono reti polimeriche tridimensionali ricche d'acqua, derivate dall'alginato, un polisaccaride anionico presente in natura. L'alginato viene estratto principalmente dalle pareti cellulari delle alghe brune appartenenti alla classe delle Phaeophyceae, anche se pu\u00f2 essere biosintetizzato da alcune specie batteriche come l'Azotobacter e lo Pseudomonas. Dal punto di vista strutturale, l\u2019alginato \u00e8 un copolimero lineare composto da acido \u03b2-D-mannuronico (unit\u00e0 M) e acido \u03b1-L-guluronico (unit\u00e0 G) collegati tramite legami glicosidici 1\u21924.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-applicative\/idrogel-di-alginato\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \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 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-63422\" alt=\"\" data-attachment-id=\"63422\" data-permalink=\"https:\/\/rheolution.com\/it\/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\/it\/note-applicative\/gelma-idrogel\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Idrogel 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\/it\/note-applicative\/gelma-idrogel\/\" target=\"_blank\">\n\t\t\t\tIdrogel 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 gelatina metacrililica (GelMA) \u00e8 un idrogel fotoreticolabile derivato dalla gelatina, a sua volta ottenuta dall\u2019idrolisi parziale del collagene, la principale proteina strutturale della matrice extracellulare (ECM). Il GelMA si ottiene facendo reagire la gelatina con l'anidride metacrilica, introducendo gruppi funzionali metacriloilici sui residui amminoacidici della gelatina e conservando al contempo la maggior parte dei suoi motivi bioattivi nativi.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-applicative\/gelma-idrogel\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \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\/PMMA-1.jpg?fit=7875%2C2612&amp;ssl=1\" class=\"attachment-full size-full wp-image-63430\" alt=\"\" data-attachment-id=\"63430\" data-permalink=\"https:\/\/rheolution.com\/it\/pmma-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-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=\"PMMA\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?fit=1024%2C340&amp;ssl=1\" srcset=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?w=7875&amp;ssl=1 7875w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=300%2C100&amp;ssl=1 300w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=1024%2C340&amp;ssl=1 1024w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=768%2C255&amp;ssl=1 768w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=1536%2C509&amp;ssl=1 1536w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=2048%2C679&amp;ssl=1 2048w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=150%2C50&amp;ssl=1 150w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?resize=700%2C232&amp;ssl=1 700w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-1.jpg?w=2440&amp;ssl=1 2440w, https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/PMMA-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\/it\/note-applicative\/polimeri-pmma\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Polimeri PMMA<\/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\/it\/note-applicative\/polimeri-pmma\/\" target=\"_blank\">\n\t\t\t\tPolimeri PMMA\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\">Il polimetilmetacrilato (PMMA) \u00e8 un polimero sintetico termoplastico che fa parte della famiglia delle resine acriliche. Si ottiene tramite la polimerizzazione radicalica dei monomeri di metilmetacrilato (MMA), dando origine a un polimero lineare e amorfo caratterizzato da un\u2019elevata trasparenza ottica e rigidit\u00e0 strutturale. Il PMMA \u00e8 interamente prodotto industrialmente: l\u2019MMA viene sintetizzato a partire da materie prime petrolchimiche e polimerizzato tramite un processo di innesco termico, chimico o fotochimico controllato.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-applicative\/polimeri-pmma\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \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-63390\" alt=\"\" data-attachment-id=\"63390\" data-permalink=\"https:\/\/rheolution.com\/it\/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\/it\/note-applicative\/pdms-polimeri\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Polimeri 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\/it\/note-applicative\/pdms-polimeri\/\" target=\"_blank\">\n\t\t\t\tPolimeri 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\">Il polidimetilsilossano (PDMS) \u00e8 un polimero polisilossanico sintetico composto da una struttura principale flessibile di silossano inorganico (\u2013Si\u2013O\u2013Si\u2013) con gruppi laterali metilici. Questa struttura unica, che unisce elementi inorganici e organici, conferisce al PDMS un\u2019eccezionale mobilit\u00e0 della catena, una temperatura di transizione vetrosa molto bassa e un comportamento elastomerico stabile in un ampio intervallo di temperature. Il PDMS viene prodotto esclusivamente tramite sintesi industriale, che in genere prevede l\u2019idrolisi e la condensazione di clorosilani, seguite dalla polimerizzazione ad apertura di anello dei silossani ciclici.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/it\/note-applicative\/pdms-polimeri\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leggi di pi\u00f9 \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\/it\/wp-json\/wp\/v2\/posts\/65650\/page\/2\/\">2<\/a>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/it\/wp-json\/wp\/v2\/posts\/65650\/page\/3\/\">3<\/a>\n<a class=\"next page-numbers\" href=\"https:\/\/rheolution.com\/it\/wp-json\/wp\/v2\/posts\/65650\/page\/2\/\">Avanti \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>Il poli(acido glicolico) (PGA) \u00e8 un poliestere alifatico sintetico che fa parte della famiglia dei poli(\u03b1-idrossiacidi). Viene prodotto interamente tramite sintesi chimica industriale ed \u00e8 caratterizzato da una semplice unit\u00e0 ripetitiva di acido glicolico collegata da legami estere. Il PGA \u00e8 altamente cristallino e idrofilo, caratteristiche che lo distinguono dai poliesteri biodegradabili a lui strettamente correlati, come il PLA e il PLGA.    <\/p>\n","protected":false},"author":195401359,"featured_media":63406,"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":[289,336],"tags":[89,124,88,261],"class_list":["post-65650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-note-applicative","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>Polimeri PGA: Propriet\u00e0, Applicazioni e Caratteristiche Meccaniche<\/title>\n<meta name=\"description\" content=\"Una guida completa ai polimeri PGA, che ne illustra la struttura, il comportamento meccanico, la viscoelasticit\u00e0 e le applicazioni biomediche.\" \/>\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\/it\/note-applicative\/pga-polimeri\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polimeri PGA: Propriet\u00e0, Applicazioni e Caratteristiche Meccaniche\" \/>\n<meta property=\"og:description\" content=\"Una guida completa ai polimeri PGA, che ne illustra la struttura, il comportamento meccanico, la viscoelasticit\u00e0 e le applicazioni biomediche.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rheolution.com\/it\/note-applicative\/pga-polimeri\/\" 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