Dynamic photopolymerization produces complex microstructures on hydrogels in a moldless approach to generate a 3D intestinal tissue model
Epithelial tissues contain three-dimensional (3D) complex microtopographies that are essential for proper performance. These microstructures provide cells with the physicochemical cues needed to guide their self-organization into functional tissue structures. However, most in vitro models do not imp...
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Veröffentlicht in: | Biofabrication 2019-02, Vol.11 (2), p.025007-025007 |
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creator | Castaño, Albert G García-Díaz, María Torras, Núria Altay, Gizem Comelles, Jordi Martínez, Elena |
description | Epithelial tissues contain three-dimensional (3D) complex microtopographies that are essential for proper performance. These microstructures provide cells with the physicochemical cues needed to guide their self-organization into functional tissue structures. However, most in vitro models do not implement these 3D architectural features. The main problem is the availability of simple fabrication techniques that can reproduce the complex geometries found in native tissues on the soft polymeric materials required as cell culture substrates. In this study reaction-diffusion mediated photolithography is used to fabricate 3D microstructures with complex geometries on poly(ethylene glycol)-based hydrogels in a single step and moldless approach. By controlling fabrication parameters such as the oxygen diffusion/depletion timescales, the distance to the light source and the exposure dose, the dimensions and geometry of the microstructures can be well-defined. In addition, copolymerization of poly(ethylene glycol) with acrylic acid improves control of the dynamic reaction-diffusion processes that govern the free-radical polymerization of highly-diluted polymeric solutions. Moreover, acrylic acid allows adjusting the density of cell adhesive ligands while preserving the mechanical properties of the hydrogels. The method proposed is a simple, single-step, and cost-effective strategy for producing models of intestinal epithelium that can be easily integrated into standard cell culture platforms. |
doi_str_mv | 10.1088/1758-5090/ab0478 |
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These microstructures provide cells with the physicochemical cues needed to guide their self-organization into functional tissue structures. However, most in vitro models do not implement these 3D architectural features. The main problem is the availability of simple fabrication techniques that can reproduce the complex geometries found in native tissues on the soft polymeric materials required as cell culture substrates. In this study reaction-diffusion mediated photolithography is used to fabricate 3D microstructures with complex geometries on poly(ethylene glycol)-based hydrogels in a single step and moldless approach. By controlling fabrication parameters such as the oxygen diffusion/depletion timescales, the distance to the light source and the exposure dose, the dimensions and geometry of the microstructures can be well-defined. In addition, copolymerization of poly(ethylene glycol) with acrylic acid improves control of the dynamic reaction-diffusion processes that govern the free-radical polymerization of highly-diluted polymeric solutions. Moreover, acrylic acid allows adjusting the density of cell adhesive ligands while preserving the mechanical properties of the hydrogels. The method proposed is a simple, single-step, and cost-effective strategy for producing models of intestinal epithelium that can be easily integrated into standard cell culture platforms.</description><identifier>ISSN: 1758-5090</identifier><identifier>ISSN: 1758-5082</identifier><identifier>EISSN: 1758-5090</identifier><identifier>DOI: 10.1088/1758-5090/ab0478</identifier><identifier>PMID: 30721885</identifier><identifier>CODEN: BIOFCK</identifier><language>eng</language><publisher>England: IOP Publishing</publisher><subject>3D microstructures ; Enginyeria de teixits ; Epiteli ; Epithelium ; Gels (Farmàcia) ; Gels (Pharmacy) ; intestinal epithelium ; microengineered 3D tissue models ; photopolymerization ; poly(ethylene glycol) hydrogels ; Teixits (Histologia) ; Tissue engineering ; Tissues</subject><ispartof>Biofabrication, 2019-02, Vol.11 (2), p.025007-025007</ispartof><rights>2019 IOP Publishing Ltd</rights><rights>(c) Institute of Physics Pub., 2019 info:eu-repo/semantics/openAccess</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c498t-941738a7da75b11e22a380316a4be91e473d4a351315e4907087146c27fcdb303</citedby><cites>FETCH-LOGICAL-c498t-941738a7da75b11e22a380316a4be91e473d4a351315e4907087146c27fcdb303</cites><orcidid>0000-0001-5027-7428 ; 0000-0002-6585-4213 ; 0000-0002-4794-5437</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1758-5090/ab0478/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>230,315,781,785,886,26979,27929,27930,53851,53898</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30721885$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Castaño, Albert G</creatorcontrib><creatorcontrib>García-Díaz, María</creatorcontrib><creatorcontrib>Torras, Núria</creatorcontrib><creatorcontrib>Altay, Gizem</creatorcontrib><creatorcontrib>Comelles, Jordi</creatorcontrib><creatorcontrib>Martínez, Elena</creatorcontrib><title>Dynamic photopolymerization produces complex microstructures on hydrogels in a moldless approach to generate a 3D intestinal tissue model</title><title>Biofabrication</title><addtitle>BF</addtitle><addtitle>Biofabrication</addtitle><description>Epithelial tissues contain three-dimensional (3D) complex microtopographies that are essential for proper performance. These microstructures provide cells with the physicochemical cues needed to guide their self-organization into functional tissue structures. However, most in vitro models do not implement these 3D architectural features. The main problem is the availability of simple fabrication techniques that can reproduce the complex geometries found in native tissues on the soft polymeric materials required as cell culture substrates. In this study reaction-diffusion mediated photolithography is used to fabricate 3D microstructures with complex geometries on poly(ethylene glycol)-based hydrogels in a single step and moldless approach. By controlling fabrication parameters such as the oxygen diffusion/depletion timescales, the distance to the light source and the exposure dose, the dimensions and geometry of the microstructures can be well-defined. In addition, copolymerization of poly(ethylene glycol) with acrylic acid improves control of the dynamic reaction-diffusion processes that govern the free-radical polymerization of highly-diluted polymeric solutions. Moreover, acrylic acid allows adjusting the density of cell adhesive ligands while preserving the mechanical properties of the hydrogels. The method proposed is a simple, single-step, and cost-effective strategy for producing models of intestinal epithelium that can be easily integrated into standard cell culture platforms.</description><subject>3D microstructures</subject><subject>Enginyeria de teixits</subject><subject>Epiteli</subject><subject>Epithelium</subject><subject>Gels (Farmàcia)</subject><subject>Gels (Pharmacy)</subject><subject>intestinal epithelium</subject><subject>microengineered 3D tissue models</subject><subject>photopolymerization</subject><subject>poly(ethylene glycol) hydrogels</subject><subject>Teixits (Histologia)</subject><subject>Tissue engineering</subject><subject>Tissues</subject><issn>1758-5090</issn><issn>1758-5082</issn><issn>1758-5090</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>XX2</sourceid><recordid>eNp1UU2P1SAUbYzGGUf3rgwr48LnQCmFLs2MX8kkbnRNKNzOY0JL5SPx-Q_8197mPUcXuiBwL-ecC-c0zXNG3zCq1CWTQu0EHeilGWkn1YPm_L718K_zWfMk5ztKeyF69rg541S2TClx3vy8Pixm9pas-1jiGsNhhuR_mOLjQtYUXbWQiY3zGuA7QWCKuaRqS03YR8z-4FK8hZCJX4ghcwwuQM7ErMg2dk9KJLewQDIF8J5fI65ALn4xgRSfcwUkOQhPm0eTCRmenfaL5uv7d1-uPu5uPn_4dPX2Zme7QZXd0DHJlZHOSDEyBm1ruKKc9aYbYWDQSe46wwXjTEA3UEmVZF1vWzlZN3LKLxp21LW5Wp3AQrKm6Gj8n2JbLXqkUWegCjmvjhz807eKr9ezzxZCMAvEmjWa2eOQVmzy9CSPTuUEk16Tn006aEb1FpreUtFbKvoYGlJenNTrOIO7J_xOCQEvjwAfV30Xa0Lvsh4nzZhuNcWxVOrVTQh8_Q_gfwf_AkW2rps</recordid><startdate>20190225</startdate><enddate>20190225</enddate><creator>Castaño, Albert G</creator><creator>García-Díaz, María</creator><creator>Torras, Núria</creator><creator>Altay, Gizem</creator><creator>Comelles, Jordi</creator><creator>Martínez, Elena</creator><general>IOP Publishing</general><general>Institute of Physics Pub</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>XX2</scope><orcidid>https://orcid.org/0000-0001-5027-7428</orcidid><orcidid>https://orcid.org/0000-0002-6585-4213</orcidid><orcidid>https://orcid.org/0000-0002-4794-5437</orcidid></search><sort><creationdate>20190225</creationdate><title>Dynamic photopolymerization produces complex microstructures on hydrogels in a moldless approach to generate a 3D intestinal tissue model</title><author>Castaño, Albert G ; García-Díaz, María ; Torras, Núria ; Altay, Gizem ; Comelles, Jordi ; Martínez, Elena</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c498t-941738a7da75b11e22a380316a4be91e473d4a351315e4907087146c27fcdb303</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>3D microstructures</topic><topic>Enginyeria de teixits</topic><topic>Epiteli</topic><topic>Epithelium</topic><topic>Gels (Farmàcia)</topic><topic>Gels (Pharmacy)</topic><topic>intestinal epithelium</topic><topic>microengineered 3D tissue models</topic><topic>photopolymerization</topic><topic>poly(ethylene glycol) hydrogels</topic><topic>Teixits (Histologia)</topic><topic>Tissue engineering</topic><topic>Tissues</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Castaño, Albert G</creatorcontrib><creatorcontrib>García-Díaz, María</creatorcontrib><creatorcontrib>Torras, Núria</creatorcontrib><creatorcontrib>Altay, Gizem</creatorcontrib><creatorcontrib>Comelles, Jordi</creatorcontrib><creatorcontrib>Martínez, Elena</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Recercat</collection><jtitle>Biofabrication</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Castaño, Albert G</au><au>García-Díaz, María</au><au>Torras, Núria</au><au>Altay, Gizem</au><au>Comelles, Jordi</au><au>Martínez, Elena</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dynamic photopolymerization produces complex microstructures on hydrogels in a moldless approach to generate a 3D intestinal tissue model</atitle><jtitle>Biofabrication</jtitle><stitle>BF</stitle><addtitle>Biofabrication</addtitle><date>2019-02-25</date><risdate>2019</risdate><volume>11</volume><issue>2</issue><spage>025007</spage><epage>025007</epage><pages>025007-025007</pages><issn>1758-5090</issn><issn>1758-5082</issn><eissn>1758-5090</eissn><coden>BIOFCK</coden><abstract>Epithelial tissues contain three-dimensional (3D) complex microtopographies that are essential for proper performance. 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In addition, copolymerization of poly(ethylene glycol) with acrylic acid improves control of the dynamic reaction-diffusion processes that govern the free-radical polymerization of highly-diluted polymeric solutions. Moreover, acrylic acid allows adjusting the density of cell adhesive ligands while preserving the mechanical properties of the hydrogels. The method proposed is a simple, single-step, and cost-effective strategy for producing models of intestinal epithelium that can be easily integrated into standard cell culture platforms.</abstract><cop>England</cop><pub>IOP Publishing</pub><pmid>30721885</pmid><doi>10.1088/1758-5090/ab0478</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0001-5027-7428</orcidid><orcidid>https://orcid.org/0000-0002-6585-4213</orcidid><orcidid>https://orcid.org/0000-0002-4794-5437</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | 3D microstructures Enginyeria de teixits Epiteli Epithelium Gels (Farmàcia) Gels (Pharmacy) intestinal epithelium microengineered 3D tissue models photopolymerization poly(ethylene glycol) hydrogels Teixits (Histologia) Tissue engineering Tissues |
title | Dynamic photopolymerization produces complex microstructures on hydrogels in a moldless approach to generate a 3D intestinal tissue model |
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