{"id":552,"date":"2024-07-01T14:04:33","date_gmt":"2024-07-01T17:04:33","guid":{"rendered":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/?p=552"},"modified":"2024-11-27T14:35:31","modified_gmt":"2024-11-27T17:35:31","slug":"exploring-tear-viscosity-with-quartz-crystal-microbalance-technology","status":"publish","type":"post","link":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/2024\/07\/01\/exploring-tear-viscosity-with-quartz-crystal-microbalance-technology\/","title":{"rendered":"Exploring tear viscosity with quartz crystal microbalance technology"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"552\" class=\"elementor elementor-552\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1e71bcae e-flex e-con-boxed e-con e-parent\" data-id=\"1e71bcae\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1cf069f0 elementor-widget elementor-widget-text-editor\" data-id=\"1cf069f0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<h4>Abstract<\/h4>\n<p><!-- \/wp:heading --><!-- wp:paragraph --><\/p>\n<p>Tear viscosity is a critical property affecting tear distribution and ocular surface stability. While not widely established as a primary diagnostic marker, deviations from normal viscosity can impact ocular health, potentially contributing to conditions such as dry eye syndrome. Despite their importance, traditional viscometers require sample volumes that are not feasible to use with tear volume. This research introduces a novel Quartz Crystal Microbalance (QCM)-based method for tear viscosity measurement, offering a viscometer prototype that operates with minimal sample volumes. Human tear samples, solutions used in artificial eye drops, and various commercial eye drop brands were evaluated. Results show that the QCM method aligns with established viscosity ranges. The average viscosity of healthy human tears was found to be 1.73 \u00b1 0.61 cP, aligning with the typical range of 1\u201310 cP. Variability in the viscosities of eye drop can be attributed to differences in their chemical compositions. The QCM method offers benefits such as reduced sample consumption and rapid results, enhancing understanding of tear dynamics for ocular health. Further research with larger sample sizes is needed to establish normative viscosity values in healthy individuals and those with dry eye syndrome, which is crucial for validating the device\u2019s clinical efficacy.<\/p>\n<p><!-- \/wp:paragraph --><!-- wp:heading {\"level\":4,\"style\":{\"elements\":{\"link\":{\"color\":{\"text\":\"var:preset|color|ast-global-color-8\"}}}},\"textColor\":\"ast-global-color-8\"} --><\/p>\n<h4><a style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); text-align: var(--text-align); font-size: 1rem;\" href=\"https:\/\/pubs.aip.org\/aip\/rsi\/article-abstract\/95\/7\/075107\/3303654\/Exploring-tear-viscosity-with-quartz-crystal?redirectedFrom=fulltext\">Ver Publicaci\u00f3n<\/a><\/h4>\n<div>\n<p><!-- \/wp:button --><\/p>\n<\/div>\n<p><!-- \/wp:buttons --><\/p>\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>Abstract Tear viscosity is a critical property affecting tear distribution and ocular surface stability. While not widely established as a primary diagnostic marker, deviations from normal viscosity can impact ocular health, potentially contributing to conditions such as dry eye syndrome. Despite their importance, traditional viscometers require sample volumes that are not feasible to use with [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","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":"","theme-transparent-header-meta":"","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-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-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-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-gradient":""}},"ast-content-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-gradient":""},"tablet":{"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-gradient":""},"mobile":{"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-gradient":""}},"footnotes":""},"categories":[7],"tags":[],"class_list":["post-552","post","type-post","status-publish","format-standard","hentry","category-publicaciones"],"_links":{"self":[{"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/posts\/552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/comments?post=552"}],"version-history":[{"count":4,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/posts\/552\/revisions"}],"predecessor-version":[{"id":556,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/posts\/552\/revisions\/556"}],"wp:attachment":[{"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/media?parent=552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/categories?post=552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ingenieria.uner.edu.ar\/nucleos\/prototipado\/index.php\/wp-json\/wp\/v2\/tags?post=552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}