{"id":2852,"date":"2026-03-09T23:08:29","date_gmt":"2026-03-09T23:08:29","guid":{"rendered":"https:\/\/blogs.chapman.edu\/gci\/?p=2852"},"modified":"2026-08-07T23:10:03","modified_gmt":"2026-08-07T23:10:03","slug":"e-daniel-cardenas-vasquez-ph-d-restructuring-ultra-soft-microgel-pastes-with-tunable-shear-thinning-and-thickening-for-controlled-injectable-delivery","status":"publish","type":"post","link":"https:\/\/blogs.chapman.edu\/gci\/2026\/03\/09\/e-daniel-cardenas-vasquez-ph-d-restructuring-ultra-soft-microgel-pastes-with-tunable-shear-thinning-and-thickening-for-controlled-injectable-delivery\/","title":{"rendered":"E. Daniel C\u00e1rdenas V\u00e1squez, Ph.D. \u2013 Restructuring Ultra-Soft Microgel Pastes with Tunable Shear Thinning and Thickening for Controlled Injectable Delivery"},"content":{"rendered":"<div data-ogsc=\"black\" data-ogsb=\"white\">At our 2026 GCI Postdoc Showcase, Postdoctoral Fellow E. Daniel C\u00e1rdenas-V\u00e1squez submitted a poster about\u00a0<strong><em>experimental and in-silico rheomechanics-assisted biophysical\u00a0principles of synthetic biomaterials for regenerative medicine<\/em><\/strong>. To learn more about his research, reach out to Dr. E. Daniel C\u00e1rdenas-V\u00e1squez at\u00a0<a href=\"mailto:cardenasvasquez@chapman.edu\">cardenasvasquez@chapman.edu<\/a>.<\/div>\n<div data-ogsc=\"black\" data-ogsb=\"white\"><\/div>\n<div data-ogsc=\"black\" data-ogsb=\"white\"><strong>Abstract:<\/strong><\/div>\n<div data-ogsc=\"black\" data-ogsb=\"white\">My research aims to design new materials using ULC microgels useful in fields like additive manufacturing, regenerative medicine, tissue engineering, etc. by creating highly packed microgel assemblies with advantageous rheological and mechanical properties. In the development of these materials for biological applications, we investigate their properties in media appropriate for biological studies, such as PBS buffers. However, upon further investigation under these conditions, the materials showed divergent properties when compared to similar materials, such as slow dissolution in PBS-containing media. The ionic content also significantly impacts the mechanical properties of the pastes. To address these unique experimental observations, we investigate the role of charges, charge displacement and net charge effects on the microgel-microgel interactions within the ULC pastes. Since we need to probe very small time- and length-scales, we use a computational approach using Dissipative Particle Dynamics (DPD) both with a bottom-top approach for a higher resolution of the interionic interactions and intermolecular forces, as well as a bottom-top for a more cost-effective methodology.<\/div>\n<div data-ogsc=\"black\" data-ogsb=\"white\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2296\" src=\"https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026.png\" alt=\"\" width=\"2560\" height=\"1920\" srcset=\"https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026.png 2560w, https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026-300x225.png 300w, https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026-1024x768.png 1024w, https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026-768x576.png 768w, https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026-1536x1152.png 1536w, https:\/\/blogs.chapman.edu\/gci\/wp-content\/uploads\/sites\/70\/2026\/04\/DCardenas_GCI-Postdoc-Showcase-2026-2048x1536.png 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>At our 2026 GCI Postdoc Showcase, Postdoctoral Fellow E. Daniel C\u00e1rdenas-V\u00e1squez submitted a poster about\u00a0experimental and in-silico rheomechanics-assisted biophysical\u00a0principles of [&hellip;]<\/p>\n","protected":false},"author":5294,"featured_media":2847,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"custom_author_name":"","chapman_pin_hero_slider":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-2852","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gci-fellows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Grand Challenges Initiative | Chapman Blogs<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.chapman.edu\/gci\/2026\/03\/09\/e-daniel-cardenas-vasquez-ph-d-restructuring-ultra-soft-microgel-pastes-with-tunable-shear-thinning-and-thickening-for-controlled-injectable-delivery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"E. 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