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Cellulose nanocrystals as support nanomaterials for dual droplet-based freeform 3D printing

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dc.contributor.authorHyung Sun Yoon-
dc.contributor.authorKYUNGJIK YANG-
dc.contributor.authorYOUNG MIN KIM-
dc.contributor.authorKEONWOOKNAM-
dc.contributor.authorYoung Hoon Roh-
dc.date.accessioned2021-12-10T03:40:09Z-
dc.date.available2021-12-10T03:40:09Z-
dc.date.created2021-12-10-
dc.date.issued2021-11-
dc.identifier.issn0144-8617-
dc.identifier.urihttps://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6023-
dc.description.abstractThe selection of sacrificial support materials is important in the fabrication of complex freeform structures. In this study, a dual droplet-based, freeform 3D printing method for pseudoplastic alginate biomaterial inks was developed using Bingham plastic cellulose nanocrystals (CNCs) as support nanomaterials. CNCs-CaCl2 mixture compositions and alginate concentrations were varied to enhance printability with rheological properties of shape fidelity and structural stability. The mixtures supported the shape of alginate and allowed CaCl2 diffusion-based cross-linking during 3D printing. The hydrogels showed rheological and physicochemical properties similar to those of pure alginate hydrogel, as CNCs were removed during post-printing processing. BSA-loaded multi-layered spheres, freeform 3D-printed for oral protein drug delivery, protected BSA in the gastric environment and provided controlled and sustained release of BSA into the intestinal environment as layer width and alginate concentration increased. This method can facilitate freeform 3D printing of diverse pseudoplastic biomaterial inks for biomedical applications.-
dc.language영어-
dc.language.isoen-
dc.publisherELSEVIER SCI LTD-
dc.titleCellulose nanocrystals as support nanomaterials for dual droplet-based freeform 3D printing-
dc.typeArticle-
dc.contributor.affiliatedAuthorHyung Sun Yoon-
dc.contributor.affiliatedAuthorKYUNGJIK YANG-
dc.contributor.affiliatedAuthorYOUNG MIN KIM-
dc.contributor.affiliatedAuthorKEONWOOKNAM-
dc.contributor.affiliatedAuthorYoung Hoon Roh-
dc.identifier.doi10.1016/j.carbpol.2021.118469-
dc.identifier.scopusid2-s2.0-85111828253-
dc.identifier.wosid000689229600016-
dc.identifier.bibliographicCitationCARBOHYDRATE POLYMERS, v.272, pp.118469-1 - 118469-10-
dc.relation.isPartOfCARBOHYDRATE POLYMERS-
dc.citation.titleCARBOHYDRATE POLYMERS-
dc.citation.volume272-
dc.citation.startPage118469-1-
dc.citation.endPage118469-10-
dc.type.rimsART-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordAuthorFreeform 3D printing-
dc.subject.keywordAuthorSupport materials-
dc.subject.keywordAuthorCellulose nanocrystals-
dc.subject.keywordAuthorAlginate hydrogel-
dc.subject.keywordAuthorControlled drug delivery-
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