{"id":65644,"date":"2026-01-22T11:44:34","date_gmt":"2026-01-22T16:44:34","guid":{"rendered":"https:\/\/rheolution.com\/?p=65644"},"modified":"2026-08-14T09:46:10","modified_gmt":"2026-08-14T13:46:10","slug":"polimeros-de-poliuretano","status":"publish","type":"post","link":"https:\/\/rheolution.com\/es\/notas-de-aplicacion\/polimeros-de-poliuretano\/","title":{"rendered":"Pol\u00edmeros de poliuretano (PU)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"65644\" class=\"elementor elementor-65644 elementor-63219\" 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 de aplicaci\u00f3n | 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\">Pol\u00edmeros de poliuretano (PU): propiedades, aplicaciones y comportamiento mec\u00e1nico<\/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>por <a href=\"https:\/\/www.linkedin.com\/in\/mayasalame\/\">Maya Salame<\/a> y <a href=\"https:\/\/www.linkedin.com\/in\/dimitria-camas%C3%A3o-049002a2\/\">Dimitria Camasao<\/a><\/p><p>Cient\u00edficos de aplicaciones<\/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\">\u00bfQu\u00e9 es el poliuretano (PU)?<\/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\">Los poliuretanos (PU) son una familia vers\u00e1til de pol\u00edmeros sint\u00e9ticos que se caracterizan por tener enlaces de uretano (carbamato) en su cadena principal. Se sintetizan industrialmente mediante reacciones de polimerizaci\u00f3n por etapas entre diisocianatos y polioles, seguidas de una extensi\u00f3n de cadena con dioles o diaminas de bajo peso molecular. La estructura macromolecular resultante suele ser segmentada y est\u00e1 formada por segmentos blandos (derivados de polioles de poli\u00e9ter, poli\u00e9ster o policarbonato) y segmentos duros (formados a partir de diisocianatos y extensores de cadena).   Esta estructura segmentada da lugar a una separaci\u00f3n de microfases, que es clave para las propiedades mec\u00e1nicas, t\u00e9rmicas y biol\u00f3gicas ajustables de los materiales de poliuretano.<\/span><\/p><p><span style=\"font-weight: 400\">Los poliuretanos son totalmente sint\u00e9ticos y se producen a partir de precursores petroqu\u00edmicos o, cada vez m\u00e1s, de origen biol\u00f3gico. Su s\u00edntesis puede realizarse mediante procesos de un solo paso o de dos pasos (prepol\u00edmero), lo que permite controlar el peso molecular, la distribuci\u00f3n de segmentos y el rendimiento final del material. Dependiendo de la composici\u00f3n y el procesamiento, los poliuretanos se pueden formular como elast\u00f3meros termopl\u00e1sticos, termoestables, espumas, membranas o hidrogeles. Esta adaptabilidad ha impulsado su uso generalizado en dispositivos biom\u00e9dicos, ap\u00f3sitos para heridas y andamios de ingenier\u00eda de tejidos.   <\/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\">Propiedades clave del poliuretano<\/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\">Caracter\u00edsticas fisicoqu\u00edmicas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f3f79d0 elementor-widget elementor-widget-text-editor\" data-id=\"f3f79d0\" 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 formaci\u00f3n del poliuretano se basa en reacciones qu\u00edmicas bien definidas y en principios de dise\u00f1o estructural que determinan el comportamiento final del material.<\/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-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\">Entre los mecanismos de polimerizaci\u00f3n y formaci\u00f3n de redes se incluyen:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reacciones de poliadici\u00f3n entre diisocianatos y polioles.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Estrategias de s\u00edntesis en un paso o en dos pasos (basadas en prepol\u00edmeros).<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Formaci\u00f3n de copol\u00edmeros en bloque segmentados con dominios separados en microfases.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Las estrategias de reticulaci\u00f3n y control estructural incluyen:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reticulaci\u00f3n f\u00edsica mediante enlaces de hidr\u00f3geno entre segmentos duros.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Reticulaci\u00f3n qu\u00edmica mediante isocianatos o polioles multifuncionales.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Redes polim\u00e9ricas interpenetrantes formadas al combinar PU con sistemas polim\u00e9ricos secundarios.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Entre los factores ambientales y de composici\u00f3n que influyen en la formaci\u00f3n de pol\u00edmeros se encuentran:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Tipo de isocianato (arom\u00e1tico o alif\u00e1tico).<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Naturaleza del segmento blando (poli\u00e9ter, poli\u00e9ster, policarbonato).<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Proporci\u00f3n entre los segmentos blandos y los duros, que determina la elasticidad, la resistencia y el comportamiento frente a la degradaci\u00f3n.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Estas variables fisicoqu\u00edmicas permiten ajustar con precisi\u00f3n la hidrofilia, la estabilidad t\u00e9rmica, la facilidad de procesamiento y la interacci\u00f3n con entornos acuosos o biol\u00f3gicos.<\/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\">Propiedades mec\u00e1nicas<\/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\">El comportamiento mec\u00e1nico de los pol\u00edmeros de poliuretano es una de sus caracter\u00edsticas m\u00e1s destacadas y depende en gran medida de su formulaci\u00f3n y estructura.<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Los PU pueden presentar una amplia gama de rigidez, desde materiales blandos y muy el\u00e1sticos hasta elast\u00f3meros mec\u00e1nicamente resistentes.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">La separaci\u00f3n en microfases entre los segmentos blandos y los duros aporta elasticidad, junto con resistencia mec\u00e1nica y resistencia a la fatiga.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Aumentar el contenido de segmentos duros suele mejorar la resistencia a la tracci\u00f3n y el m\u00f3dulo de elasticidad, mientras que un mayor contenido de segmentos blandos aumenta la flexibilidad y la extensibilidad.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Los poliuretanos a base de policarbonato suelen presentar una estabilidad mec\u00e1nica y una resistencia a la degradaci\u00f3n hidrol\u00edtica superiores a las de los sistemas a base de poli\u00e9ter.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Las formulaciones de poliuretano degradable muestran una evoluci\u00f3n mec\u00e1nica que depende del tiempo, en la que el m\u00f3dulo y la resistencia disminuyen a medida que las cadenas polim\u00e9ricas sufren degradaci\u00f3n hidrol\u00edtica, oxidativa o enzim\u00e1tica. Este comportamiento es especialmente relevante para los implantes biom\u00e9dicos temporales y los andamios destinados a ser sustituidos por tejido regenerado. <\/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\">Interacciones biol\u00f3gicas<\/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\">Los poliuretanos se han estudiado a fondo por c\u00f3mo interact\u00faan con los sistemas biol\u00f3gicos, sobre todo en el \u00e1mbito m\u00e9dico y de la ingenier\u00eda de tejidos.<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Las superficies de PU favorecen la adhesi\u00f3n, la extensi\u00f3n y la proliferaci\u00f3n de varios tipos de c\u00e9lulas, como los fibroblastos, las c\u00e9lulas endoteliales, los osteoblastos y las c\u00e9lulas madre.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Los poliuretanos (PU) bien formulados presentan una buena biocompatibilidad y una baja citotoxicidad tanto in vitro como in vivo.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">La ausencia de motivos bioactivos intr\u00ednsecos significa que las interacciones celulares vienen determinadas principalmente por la qu\u00edmica de la superficie, la topograf\u00eda y las se\u00f1ales mec\u00e1nicas.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Los productos de degradaci\u00f3n y las velocidades de degradaci\u00f3n dependen en gran medida de la composici\u00f3n qu\u00edmica del pol\u00edmero; por lo general, se prefieren los sistemas alif\u00e1ticos y a base de policarbonato porque ofrecen una mayor tolerancia biol\u00f3gica.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Estas caracter\u00edsticas hacen que el poliuretano sea un material base fiable que se puede modificar a\u00fan m\u00e1s para potenciar respuestas biol\u00f3gicas espec\u00edficas.<\/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\">Aplicaciones del poliuretano<\/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\">Ingenier\u00eda de tejidos<\/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\">Los pol\u00edmeros de poliuretano se usan mucho como materiales de andamio en la ingenier\u00eda de tejidos gracias a su elasticidad ajustable y su estabilidad estructural. Sus propiedades mec\u00e1nicas se pueden adaptar para que coincidan con las de los tejidos blandos, como el cart\u00edlago, el m\u00fasculo o la piel. Los andamios de PU porosos, fabricados mediante t\u00e9cnicas como la espumaci\u00f3n, el electrohilado, la liofilizaci\u00f3n o la fabricaci\u00f3n aditiva, favorecen la infiltraci\u00f3n celular, la integraci\u00f3n tisular y, en el caso de las formulaciones degradables, la transferencia gradual de la carga al tejido en regeneraci\u00f3n.  <\/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\">Cultivos celulares en 3D y modelos de enfermedades<\/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\">En los sistemas de cultivo celular tridimensionales, los andamios y los hidrogeles a base de poliuretano ofrecen entornos con propiedades mec\u00e1nicas definidas que influyen en la morfolog\u00eda, la diferenciaci\u00f3n y la funci\u00f3n de las c\u00e9lulas. Su compatibilidad con t\u00e9cnicas de fabricaci\u00f3n avanzadas, como la impresi\u00f3n por extrusi\u00f3n y el bioplotting, permite crear estructuras con poros de tama\u00f1o controlado, anisotrop\u00eda y gradientes de rigidez. Estas caracter\u00edsticas son muy \u00fatiles para modelar microentornos espec\u00edficos de cada tejido y alteraciones mec\u00e1nicas relacionadas con enfermedades.  <\/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\">Administraci\u00f3n de f\u00e1rmacos, genes y c\u00e9lulas<\/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\">Los materiales de poliuretano tambi\u00e9n se usan como soportes o matrices para aplicaciones de liberaci\u00f3n controlada. Su estructura segmentada permite incorporar dominios hidrof\u00edlicos o hidrof\u00f3bicos, lo que facilita la encapsulaci\u00f3n y la liberaci\u00f3n prolongada de agentes terap\u00e9uticos. Los hidrogeles de PU inyectables o con memoria de forma pueden adaptarse a zonas de defectos irregulares, lo que permite la administraci\u00f3n localizada de f\u00e1rmacos o c\u00e9lulas, al tiempo que mantienen la integridad mec\u00e1nica durante el proceso de cicatrizaci\u00f3n.  <\/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\">\u00bfPor qu\u00e9 es importante la viscoelasticidad del poliuretano?<\/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\">El comportamiento viscoel\u00e1stico del poliuretano es clave para su rendimiento en aplicaciones biol\u00f3gicas y funcionales. Muchos tejidos diana muestran respuestas mec\u00e1nicas que dependen del tiempo, y los materiales de PU se pueden dise\u00f1ar para imitar estas caracter\u00edsticas. La viscoelasticidad influye en c\u00f3mo se distribuyen las tensiones bajo carga, en c\u00f3mo las c\u00e9lulas perciben su entorno y responden a \u00e9l, y en c\u00f3mo se comportan los materiales ante deformaciones c\u00edclicas o a largo plazo. Adaptar las propiedades viscoel\u00e1sticas de los implantes a base de poliuretano a las del tejido natural mejora la compatibilidad mec\u00e1nica, la durabilidad y los resultados biol\u00f3gicos.   <\/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\u00e9todos para caracterizar la viscoelasticidad del poliuretano<\/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\">Las propiedades mec\u00e1nicas y viscoel\u00e1sticas de los pol\u00edmeros de poliuretano suelen caracterizarse mediante:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ensayos de tracci\u00f3n y compresi\u00f3n para medir el m\u00f3dulo de elasticidad, la resistencia y el alargamiento.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">An\u00e1lisis mec\u00e1nico din\u00e1mico y reometr\u00eda para evaluar los m\u00f3dulos de almacenamiento y de p\u00e9rdida, as\u00ed como el comportamiento en funci\u00f3n del tiempo.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ensayos de fatiga y de carga c\u00edclica para evaluar la durabilidad ante deformaciones repetidas.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">Los m\u00e9todos tradicionales de ensayo mec\u00e1nico suelen requerir una preparaci\u00f3n destructiva de las muestras, ofrecen una resoluci\u00f3n temporal limitada y es posible que no detecten las primeras etapas de la polimerizaci\u00f3n ni los cambios sutiles que se producen durante la degradaci\u00f3n. Estas limitaciones son especialmente relevantes en el caso de los sistemas de poliuretano blandos o hidratados. <\/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: una herramienta no destructiva para medir pol\u00edmeros de poliuretano blandos<\/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\">El <a href=\"https:\/\/rheolution.com\/instrument-elastosensbio\/\" target=\"_blank\" rel=\"noopener\"><strong>ElastoSens\u2122 Bio <\/strong><\/a> <\/span><span style=\"font-weight: 400\"> <\/span><span style=\"font-weight: 400\">es un instrumento no destructivo y sin contacto dise\u00f1ado para caracterizar las propiedades viscoel\u00e1sticas de materiales polim\u00e9ricos blandos, como los hidrogeles de poliuretano y los elast\u00f3meros. Funciona midiendo los cambios en la frecuencia de resonancia provocados por peque\u00f1as perturbaciones mec\u00e1nicas, lo que permite medir en tiempo real la rigidez y la evoluci\u00f3n viscoel\u00e1stica. <\/span><\/p><p><span style=\"font-weight: 400\">Para los sistemas a base de poliuretano blando, ElastoSens\u2122 Bio es especialmente adecuado porque:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mide materiales blandos y muy flexibles con gran sensibilidad y repetibilidad.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Permite supervisar de forma continua y en tiempo real la polimerizaci\u00f3n, el curado o la formaci\u00f3n de redes.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Permite realizar ensayos longitudinales de la misma muestra a lo largo del tiempo, incluso en condiciones est\u00e9riles.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Permite flujos de trabajo no destructivos que preservan la integridad de las muestras y su relevancia biol\u00f3gica.<\/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\/es\/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\">Estas caracter\u00edsticas lo convierten en una herramienta muy \u00fatil para estudiar el desarrollo mec\u00e1nico, la estabilidad y la degradaci\u00f3n de los materiales blandos de poliuretano en el \u00e1mbito de la investigaci\u00f3n y el desarrollo biom\u00e9dicos.<\/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\">Conclusiones y perspectivas<\/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\">El comportamiento mec\u00e1nico de los pol\u00edmeros blandos de poliuretano (PU) \u2014que depende de su arquitectura segmentada, la densidad de reticulaci\u00f3n y la viscoelasticidad dependiente del tiempo\u2014 es clave para su rendimiento en aplicaciones biom\u00e9dicas y con materiales blandos. Como los sistemas de PU pueden pasar de ser precursores l\u00edquidos o semil\u00edquidos a redes el\u00e1sticas y seguir cambiando con el tiempo, su comportamiento mec\u00e1nico se beneficia de m\u00e9todos de caracterizaci\u00f3n que conservan la estructura y la esterilidad. <\/span><\/p><p><span style=\"font-weight: 400\">La caracterizaci\u00f3n viscoel\u00e1stica no destructiva con el ElastoSens\u2122 Bio te permite:<\/span><\/p><ul><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Mediciones de alta sensibilidad y fiables, pensadas especialmente para materiales de PU blando.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Seguimiento en tiempo real de la cin\u00e9tica de gelificaci\u00f3n e identificaci\u00f3n del punto de transici\u00f3n l\u00edquido-gel.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Determinaci\u00f3n precisa de la rigidez final y la maduraci\u00f3n de la red.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Pruebas longitudinales de la misma muestra de PU para seguir su evoluci\u00f3n mec\u00e1nica en condiciones est\u00e9riles.<\/span><\/li><li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Fotoestimulaci\u00f3n integrada para seguir en tiempo real los procesos de reticulaci\u00f3n fotoqu\u00edmica y curado.<\/span><\/li><\/ul><p><span style=\"font-weight: 400\">En conjunto, estas capacidades contribuyen a mejorar la comprensi\u00f3n, la optimizaci\u00f3n y la reproducibilidad de los sistemas de pol\u00edmeros blandos basados en PU.<\/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\">Referencias<\/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:\/\/www.mdpi.com\/2073-4360\/15\/21\/4301\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Liang, W., Ni, N., Huang, Y., &amp; Lin, C. (2023). An advanced review: Polyurethane-related dressings for skin wound repair.  <\/span>Polymers, 15(21), 4301.<\/a><\/p><p><a href=\"https:\/\/journals.sagepub.com\/doi\/10.1089\/ten.teb.2019.0224\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Griffin, M., Castro, N., Bas, O., Saifzadeh, S., Butler, P., &amp; Hutmacher, D. W. (2020). The current versatility of polyurethane three-dimensional printing for biomedical applications.  <\/span>Tissue Engineering Part B: Reviews, 26(3), 272-283.<\/a><\/p><p><a href=\"https:\/\/www.mdpi.com\/2073-4360\/14\/9\/1672\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Tan, R. Y. H., Lee, C. S., Pichika, M. R., Cheng, S. F., &amp; Lam, K. Y. (2022). PH responsive polyurethane for the advancement of biomedical and drug delivery.  <\/span>Polymers, 14(9), 1672.<\/a><\/p><p><a href=\"https:\/\/www.cell.com\/cell-reports-physical-science\/fulltext\/S2666-3864(24)00322-9\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400\">Dang, G. P., Gu, J. T., Song, J. H., Li, Z. T., Hao, J. X., Wang, Y. Z., &#8230; &amp; Xia, L. Y. (2024). Multifunctional polyurethane materials in regenerative medicine and tissue engineering.  <\/span>Cell Reports Physical Science, 5(7).<\/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>Descubre c\u00f3mo nuestra tecnolog\u00eda mide de forma no destructiva las propiedades viscoel\u00e1sticas de los biomateriales blandos y los tejidos utilizando microvol\u00famenes de muestras<\/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\">Ponte en contacto con nosotros para m\u00e1s informaci\u00f3n<\/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\">Art\u00edculos relacionados<\/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\" 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premium-blog-skin-classic\">\n\t\t\t\t\t\t\t\t\t<div class=\"premium-blog-thumb-effect-wrapper\">\n\t\t\t\t\t\t<div class=\"premium-blog-thumbnail-container premium-blog-zoomin-effect\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"7000\" height=\"2322\" src=\"https:\/\/i0.wp.com\/rheolution.com\/wp-content\/uploads\/ALGINATE-1.jpg?fit=7000%2C2322&amp;ssl=1\" class=\"attachment-full size-full wp-image-63132\" alt=\"\" data-attachment-id=\"63132\" data-permalink=\"https:\/\/rheolution.com\/es\/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\/es\/notas-de-aplicacion\/hidrogeles-de-alginato\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Hidrogeles de 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\/es\/notas-de-aplicacion\/hidrogeles-de-alginato\/\" target=\"_blank\">\n\t\t\t\tHidrogeles de 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\">Los hidrogeles de alginato son redes polim\u00e9ricas tridimensionales con alto contenido en agua que se obtienen del alginato, un polisac\u00e1rido ani\u00f3nico de origen natural. El alginato se extrae principalmente de las paredes celulares de las algas pardas de la clase Phaeophyceae, aunque tambi\u00e9n puede ser biosintetizado por ciertas especies bacterianas como Azotobacter y Pseudomonas. Estructuralmente, el alginato es un copol\u00edmero lineal compuesto por \u00e1cido \u03b2-D-manur\u00f3nico (unidades M) y \u00e1cido \u03b1-L-gulur\u00f3nico (unidades G), unidos mediante enlaces glicos\u00eddicos 1\u21924.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/es\/notas-de-aplicacion\/hidrogeles-de-alginato\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leer m\u00e1s \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-63424\" alt=\"\" data-attachment-id=\"63424\" data-permalink=\"https:\/\/rheolution.com\/es\/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\/es\/notas-de-aplicacion\/gelma-hidrogeles\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Hidrogeles de 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\/es\/notas-de-aplicacion\/gelma-hidrogeles\/\" target=\"_blank\">\n\t\t\t\tHidrogeles de 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 metacriloilada (GelMA) es un hidrogel fotocrosslinkable derivado de la gelatina, que a su vez se obtiene mediante la hidr\u00f3lisis parcial del col\u00e1geno, la principal prote\u00edna estructural de la matriz extracelular (MEC). El GelMA se sintetiza haciendo reaccionar la gelatina con anh\u00eddrido metacr\u00edlico, lo que introduce grupos funcionales metacriloilo en los residuos de amino\u00e1cidos de la gelatina, al tiempo que conserva la mayor parte de sus motivos bioactivos nativos.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/es\/notas-de-aplicacion\/gelma-hidrogeles\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leer m\u00e1s \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-63432\" alt=\"\" data-attachment-id=\"63432\" data-permalink=\"https:\/\/rheolution.com\/es\/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\/es\/notas-de-aplicacion\/polimeros-de-pmma\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Pol\u00edmeros de 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\/es\/notas-de-aplicacion\/polimeros-de-pmma\/\" target=\"_blank\">\n\t\t\t\tPol\u00edmeros de 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\">El polimetilmetacrilato (PMMA) es un pol\u00edmero sint\u00e9tico termopl\u00e1stico que pertenece a la familia de las resinas acr\u00edlicas. Se forma mediante la polimerizaci\u00f3n por radicales libres de mon\u00f3meros de metilmetacrilato (MMA), lo que da como resultado un pol\u00edmero lineal y amorfo con gran transparencia \u00f3ptica y rigidez estructural. El PMMA se produce \u00edntegramente de forma industrial: el MMA se sintetiza a partir de materias primas petroqu\u00edmicas y se polimeriza mediante iniciaci\u00f3n controlada t\u00e9rmica, qu\u00edmica o fotoqu\u00edmica.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/es\/notas-de-aplicacion\/polimeros-de-pmma\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leer m\u00e1s \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-63392\" alt=\"\" data-attachment-id=\"63392\" data-permalink=\"https:\/\/rheolution.com\/es\/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\/es\/notas-de-aplicacion\/pdms-polimeros\/\" target=\"_blank\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Pol\u00edmeros de 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\/es\/notas-de-aplicacion\/pdms-polimeros\/\" target=\"_blank\">\n\t\t\t\tPol\u00edmeros de 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\">El polidimetilsiloxano (PDMS) es un pol\u00edmero polisilox\u00e1nico sint\u00e9tico compuesto por una cadena principal flexible de siloxano inorg\u00e1nico (\u2013Si\u2013O\u2013Si\u2013) con grupos laterales metilo. Esta arquitectura inorg\u00e1nico-org\u00e1nica \u00fanica le da al PDMS una movilidad de cadena excepcional, una temperatura de transici\u00f3n v\u00edtrea muy baja y un comportamiento elastom\u00e9rico estable en un amplio rango de temperaturas. El PDMS se produce exclusivamente mediante s\u00edntesis industrial, que suele implicar la hidr\u00f3lisis y la condensaci\u00f3n de clorosilanos, seguidas de la polimerizaci\u00f3n por apertura de anillo de siloxanos c\u00edclicos.<\/p><div class=\"premium-blog-excerpt-link-wrap\"><a href=\"https:\/\/rheolution.com\/es\/notas-de-aplicacion\/pdms-polimeros\/\" target=\"_blank\" class=\"premium-blog-excerpt-link elementor-button\">Leer m\u00e1s \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=\"Paginaci\u00f3n\">\n\t\t\t\t<span aria-current=\"page\" class=\"page-numbers current\">1<\/span>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/es\/wp-json\/wp\/v2\/posts\/65644\/page\/2\/\">2<\/a>\n<a class=\"page-numbers\" href=\"https:\/\/rheolution.com\/es\/wp-json\/wp\/v2\/posts\/65644\/page\/3\/\">3<\/a>\n<a class=\"next page-numbers\" href=\"https:\/\/rheolution.com\/es\/wp-json\/wp\/v2\/posts\/65644\/page\/2\/\">Siguiente \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>Los poliuretanos (PU) son una familia vers\u00e1til de pol\u00edmeros sint\u00e9ticos que se caracterizan por tener enlaces de uretano (carbamato) en su cadena principal. Se sintetizan industrialmente mediante reacciones de polimerizaci\u00f3n por etapas entre diisocianatos y polioles, seguidas de una extensi\u00f3n de cadena con dioles o diaminas de bajo peso molecular. La estructura macromolecular resultante suele ser segmentada y est\u00e1 formada por segmentos blandos (derivados de polioles de poli\u00e9ter, poli\u00e9ster o policarbonato) y segmentos duros (formados a partir de diisocianatos y extensores de cadena).  <\/p>\n","protected":false},"author":195401359,"featured_media":63116,"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":[287,334],"tags":[89,124,88,261],"class_list":["post-65644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notas-de-aplicacion","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 v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pol\u00edmeros de 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