{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/122127"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/122127","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Post-print modification strategies on 3D printed constructs for tubular scaffold fabrication","abstract":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01","abstract_has_math":false,"creators":["Chen, Lin"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":["Bhargava, Rohit","Yang, Hong","Kong, Hyun Joon","Rogers, Simon A"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-12","date_published":"2023-12","updated_at":"2026-07-22T22:25:00Z","subjects":["3d Printing","Surface-initiated Photopolymerization","Post-print Modification Strategies","Coatings."],"languages":["en","eng"],"rights":["Copyright 2023 Lin Chen"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/122127","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Bhargava, Rohit","Yang, Hong","Kong, Hyun Joon","Rogers, Simon A"]},{"key":"dc:creator","label":"Author","values":["Chen, Lin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-12","2023-11-27"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["3d Printing","Surface-initiated Photopolymerization","Post-print Modification Strategies","Coatings."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2023 Lin Chen"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/122127"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01","The student, Lin Chen, accepted the attached license on 2023-11-20 at 13:14.","The student, Lin Chen, submitted this Dissertation for approval on 2023-11-20 at 13:20.","This Dissertation was approved for publication on 2023-11-27 at 11:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19974 on 2024-03-01 at 13:30:40","Three-dimensional (3D) printing enables the fabrication of intricate tubular structures with broad applications in biomedicine areas. However, print materials with high printability often lack the bio-functionality required for many biomedical applications. This thesis focuses on developing hydrogel coatings as a post-print modification strategy to add functionality to 3D printed constructs without compromising shape fidelity. The core innovation is applying conformal hydrogel coatings onto complex 3D printed templates using a surface-initiated photopolymerization scheme that allows localized hydrogel growth from the template interface under mild visible light irradiation. Key advances include 3D printing complex tubular sacrificial templates mimicking vascular networks, designing a light irradiation system for polymerization of hydrogel coatings on the templates, and extensive materials characterization demonstrating conformal and localized hydrogel coating with retention of print resolution. Next, computational modeling was developed to provide insights into the surface photopolymerization kinetics and enable predicting and optimizing coating thickness. Finally, multi-layered hydrogel coatings experimentally implemented through wavelength-selective initiation to produce enhanced cellular adhesion compared to single layers. Further, the coating technique was expanded to be compatible with digital light processing (DLP) printing for modifying complex inner luminal geometries. This thesis establishes a versatile and universal hydrogel coating platform to impart protective coatings, and multi-layered architectures onto 3D printed constructs without compromising shape fidelity. These post-print modification strategies provide the foundation for functional interfaces, coatings, and modifications to significantly advance 3D printing capabilities across disciplines, especially biomedical engineering applications in areas like tissue engineering and drug delivery."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Post-print modification strategies on 3D printed constructs for tubular scaffold fabrication"]}]}],"canonical_facts":{"dc:contributor":["Bhargava, Rohit","Yang, Hong","Kong, Hyun Joon","Rogers, Simon A"],"dc:creator":["Chen, Lin"],"dc:date":["2023-12","2023-11-27"],"dc:description":["Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01","The student, Lin Chen, accepted the attached license on 2023-11-20 at 13:14.","The student, Lin Chen, submitted this Dissertation for approval on 2023-11-20 at 13:20.","This Dissertation was approved for publication on 2023-11-27 at 11:34.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19974 on 2024-03-01 at 13:30:40","Three-dimensional (3D) printing enables the fabrication of intricate tubular structures with broad applications in biomedicine areas. However, print materials with high printability often lack the bio-functionality required for many biomedical applications. This thesis focuses on developing hydrogel coatings as a post-print modification strategy to add functionality to 3D printed constructs without compromising shape fidelity. The core innovation is applying conformal hydrogel coatings onto complex 3D printed templates using a surface-initiated photopolymerization scheme that allows localized hydrogel growth from the template interface under mild visible light irradiation. Key advances include 3D printing complex tubular sacrificial templates mimicking vascular networks, designing a light irradiation system for polymerization of hydrogel coatings on the templates, and extensive materials characterization demonstrating conformal and localized hydrogel coating with retention of print resolution. Next, computational modeling was developed to provide insights into the surface photopolymerization kinetics and enable predicting and optimizing coating thickness. Finally, multi-layered hydrogel coatings experimentally implemented through wavelength-selective initiation to produce enhanced cellular adhesion compared to single layers. Further, the coating technique was expanded to be compatible with digital light processing (DLP) printing for modifying complex inner luminal geometries. This thesis establishes a versatile and universal hydrogel coating platform to impart protective coatings, and multi-layered architectures onto 3D printed constructs without compromising shape fidelity. These post-print modification strategies provide the foundation for functional interfaces, coatings, and modifications to significantly advance 3D printing capabilities across disciplines, especially biomedical engineering applications in areas like tissue engineering and drug delivery."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/122127"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 Lin Chen"],"dc:subject":["3d Printing","Surface-initiated Photopolymerization","Post-print Modification Strategies","Coatings."],"dc:title":["Post-print modification strategies on 3D printed constructs for tubular scaffold fabrication"],"dc:type":["text"],"thesis:degree_discipline":["Chemical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}