{"id":179892,"date":"2021-02-12T02:50:27","date_gmt":"2021-02-12T02:50:27","guid":{"rendered":"http:\/\/facfox.com\/news\/?p=179892"},"modified":"2021-04-06T03:29:06","modified_gmt":"2021-04-06T03:29:06","slug":"postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials","status":"publish","type":"post","link":"https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/","title":{"rendered":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials"},"content":{"rendered":"<p>Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer. The new material results in printed objects that have unusual softness and elasticity that closely resemble those of human tissue. The researchers\u2019 findings were published in the journal <i>Science Advances.<\/i><\/p>\n<p>These polymers are significant because they do not contain water that <a href=\"https:\/\/facfox.com\/news\/topics\/art\" target=\"_blank\" rel=\"noopener\">art<\/a>ificially softens them. They can form implants less likely to cause inflammation, which will make <a href=\"https:\/\/facfox.com\/news\/topics\/medical\" target=\"_blank\" rel=\"noopener\">medical<\/a> devices much more successful. They will also resist biodegradation in the body because engineers do not have to worry about retaining water that has been <a href=\"https:\/\/facfox.com\/news\/topics\/art\" target=\"_blank\" rel=\"noopener\">art<\/a>ificially inserted. The absence of water will also prevent post-processing defects, like warping or cracking, because no water exists to evaporate from the solvent.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-180039 aligncenter\" src=\"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials.png\" alt=\"\" width=\"780\" height=\"470\" \/><\/p>\n<p>Bottlebrush polymers have additional polymers attached to the linear backbone, leading to a structure more akin to a bottle brush you might find in your kitchen. The bottlebrush polymer structure imp<a href=\"https:\/\/facfox.com\/news\/topics\/art\" target=\"_blank\" rel=\"noopener\">art<\/a>s the ability to form extremely soft elastomers. Conventional elastomers (think rubbers) are, on the other hand, stiffer than many biological tissues. The size and shape of their constituent polymers, which are long, linear molecules that easily entangle like cooked spaghetti, cause the rigidity.<\/p>\n<div style=\"background-color: #eaeaea7a; padding: 15px 30px; overflow-wrap: break-word; display: flex; align-items: center; border-radius: 4px; box-shadow: -1px 4px 20px 0px #dedede; margin-top: 1em; margin-bottom: 1em;\">\n<div style=\"flex: 1; padding-right: 30px;\">\n<h4 style=\"margin-bottom: 14px;\">Manufacturing on Demand<\/h4>\n<div style=\"display: block;\">Realize your creation with full capabilities, expand your business from prototyping to mass production.<\/div>\n<\/div>\n<p><a style=\"background-color: #0baee8; color: white; padding: 10px 20px; border-radius: 4px;\" href=\"https:\/\/facfox.com\" target=\"_self\" rel=\"noopener noreferrer\"><i class=\"fa-fw auxicon auxicon-cloud-upload\" aria-hidden=\"true\"><\/i> Get Quote<\/a><\/p>\n<\/div>\n<p>Printing bottlebrush elastomers allows manufacturers to create objects that require careful control over their dimensions. New possibilities for <a href=\"https:\/\/facfox.com\/service\/3d-printing-service\" target=\"_blank\" rel=\"noopener\">3D print<\/a><a href=\"https:\/\/facfox.com\/service\/3d-printing-service\" target=\"_blank\" rel=\"noopener\">ing<\/a> range from biomimetic tissue to high-sensitivity electronic devices, such as touchpads, sensors and actuators.<\/p>\n<p><img decoding=\"async\" width=\"340\" height=\"240\" class=\"wp-image-180040 size-full aligncenter\" src=\"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials-1.png\" \/><\/p>\n<p>Xie\u2019s and Mukherjee\u2019s key discovery involves the self-assembly of bottlebrush polymers at the nanometer length scale, which causes a solid-to-liquid transition in response to applied pressure. This material is categorized as a yield-stress fluid, meaning it begins as a semi-soft solid that holds shape, like butter or toothpaste, but when sufficient pressure is applied, it liquefies and can be squeezed through a syringe. The team exploited this property to create inks in a <a href=\"https:\/\/facfox.com\/service\/3d-printing-service\" target=\"_blank\" rel=\"noopener\">3D print<\/a><a href=\"https:\/\/facfox.com\/service\/3d-printing-service\" target=\"_blank\" rel=\"noopener\">ing<\/a> process called direct ink writing (DIW).<\/p>\n<p>The researchers can tune the material to flow under various amounts of pressure to match the desired processing conditions.<\/p>\n<p>Once the object is printed, UV light is shined onto it to activate synthesized cross-linkers included as a p<a href=\"https:\/\/facfox.com\/news\/topics\/art\" target=\"_blank\" rel=\"noopener\">art<\/a> of the ink formulation. The cross-linkers can link up nearby bottlebrush polymers, resulting in a super-soft elastomer. At that point, the material becomes a permanent solid: it will not revert to its liquid form.<\/p>\n<div><\/div>\n<p>&nbsp;<\/p>\n<p style=\"font-size: 14px; color: grey;\">* This article is reprinted from <a href=\"https:\/\/www.3dprintingmedia.network\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am\/\" target=\"_blank\" rel=\"noopener\">3D Printing Media Network<\/a>. If you are involved in infringement, please contact us to delete it.<\/p>\n<p><i class=\"far fa-fw fa-user\"><\/i> Author: Adam Str\u00f6mbergsson<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer. The new material results in printed objects that have unusual softness and elasticity that closely resemble those of human tissue. The researchers\u2019 findings were published in the journal Science Advances.<\/p>\n","protected":false},"author":3,"featured_media":184705,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"fifu_image_url":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials.png","fifu_image_alt":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials","footnotes":""},"categories":[195],"tags":[24,3389,292,3460],"class_list":["post-179892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medical","tag-3d-printing","tag-biomaterial","tag-bioprinting","tag-medicine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials - FacFox News<\/title>\n<meta name=\"description\" content=\"Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer. The new material results in printed objects that have unusual softness and elasticity that closely resemble those of human tissue. The researchers\u2019 findings were published in the journal Science Advances. 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The new material results in printed objects that have unusual softness and elasticity that closely resemble those of human tissue. The researchers\u2019 findings were published in the journal Science Advances. Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/","og_locale":"en_US","og_type":"article","og_title":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials","og_description":"Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer. 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The new material results in printed objects that have unusual softness and elasticity that closely resemble those of human tissue. The researchers\u2019 findings were published in the journal Science Advances. Two postdoctoral researchers at UC Santa Barbara, Renxuan Xie and Sanjoy Mukherjee, developed the first 3D-printable \u201cbottlebrush\u201d elastomer.","breadcrumb":{"@id":"https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/#primaryimage","url":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials.png","contentUrl":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials.png","caption":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials"},{"@type":"BreadcrumbList","@id":"https:\/\/facfox.com\/news\/postdocs-at-ucsb-develop-a-bottlebrush-elastomer-for-am-materials\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/facfox.com\/news\/"},{"@type":"ListItem","position":2,"name":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials"}]},{"@type":"WebSite","@id":"https:\/\/facfox.com\/news\/#website","url":"https:\/\/facfox.com\/news\/","name":"FacFox News","description":"News and Insights of 3D Printing and Manufacturing","publisher":{"@id":"https:\/\/facfox.com\/news\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/facfox.com\/news\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/facfox.com\/news\/#organization","name":"FacFox News","url":"https:\/\/facfox.com\/news\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/facfox.com\/news\/#\/schema\/logo\/image\/","url":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2020\/11\/facfox-news-homepg-logo-200px.png","contentUrl":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2020\/11\/facfox-news-homepg-logo-200px.png","width":200,"height":55,"caption":"FacFox News"},"image":{"@id":"https:\/\/facfox.com\/news\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/facfox.com\/news\/#\/schema\/person\/7b701aad2d8f434034fcecd2c50a570c","name":"Vera","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/bf3b1e47e1f0ed2367da10e343584d5a4adb2e9675fce2aefb04f0ecf3954386?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/bf3b1e47e1f0ed2367da10e343584d5a4adb2e9675fce2aefb04f0ecf3954386?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/bf3b1e47e1f0ed2367da10e343584d5a4adb2e9675fce2aefb04f0ecf3954386?s=96&d=mm&r=g","caption":"Vera"},"url":"https:\/\/facfox.com\/news\/author\/vera\/"}]}},"fifu_image_url":"https:\/\/facfox.com\/news\/wp-content\/uploads\/2021\/02\/Pasted-into-Postdocs-at-UCSB-Develop-a-Bottlebrush-Elastomer-for-AM-Materials.png","fifu_image_alt":"Postdocs at UCSB Develop a Bottlebrush Elastomer for AM Materials","_links":{"self":[{"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/posts\/179892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/comments?post=179892"}],"version-history":[{"count":1,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/posts\/179892\/revisions"}],"predecessor-version":[{"id":180041,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/posts\/179892\/revisions\/180041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/media\/184705"}],"wp:attachment":[{"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/media?parent=179892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/categories?post=179892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/facfox.com\/news\/wp-json\/wp\/v2\/tags?post=179892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}