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Crystallization-induced gelling as a method to 4D print low-water-content non-isocyanate polyurethane hydrogels
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Fanjul-Mosteirín, Noé, Aguirresarobe, Robert, Sadaba, Naroa, Larrañaga, Aitor, Marin, Edurne, Martin, Jaime, Ramos-Gomez, Nicolas, Arno, Maria C., Sardon, Haritz and Dove, Andrew P. (2021) Crystallization-induced gelling as a method to 4D print low-water-content non-isocyanate polyurethane hydrogels. Chemistry of Materials, 33 (18). pp. 7194-7202. doi:10.1021/acs.chemmater.1c00913
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Official URL: https://doi.org/10.1021/acs.chemmater.1c00913
Abstract
The use of three-dimensional (3D) printable hydrogels for biomedical applications has attracted considerable attention as a consequence of the ability to precisely define the morphology of the printed object, allowing patients’ needs to be targeted. However, the majority of hydrogels do not possess suitable mechanical properties to fulfill an adequate rheological profile for printability, and hence, 3D printing of cross-linked networks is challenging and normally requires postprinting modifications to obtain the desired scaffolds. In this work, we took advantage of the crystallization process of poly(ethylene glycol) to print non-isocyanate poly(hydroxyurethane) hydrogels with tunable mechanical properties. As a consequence of the crystallization process, the hydrogel modulus can be tuned up to 3 orders of magnitude upon heating up to 40 °C, offering an interesting strategy to directly 3D-print hydrogels without the need of postprinting cross-linking. Moreover, the absence of any toxicity makes these materials ideal candidates for biomedical applications.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QD Chemistry R Medicine > R Medicine (General) T Technology > TP Chemical technology T Technology > TS Manufactures |
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| Divisions: | Faculty of Science > Chemistry | |||||||||
| SWORD Depositor: | Library Publications Router | |||||||||
| Library of Congress Subject Headings (LCSH): | Three-dimensional printing , Colloids, Polyethylene glycol , Crystallization , Crystallization -- Industrial applications, Biomedical engineering, Colloids in medicine | |||||||||
| Journal or Publication Title: | Chemistry of Materials | |||||||||
| Publisher: | American Chemical Society (ACS) | |||||||||
| ISSN: | 1520-5002 | |||||||||
| Official Date: | 28 September 2021 | |||||||||
| Dates: |
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| Volume: | 33 | |||||||||
| Number: | 18 | |||||||||
| Page Range: | pp. 7194-7202 | |||||||||
| DOI: | 10.1021/acs.chemmater.1c00913 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access | |||||||||
| Copyright Holders: | Copyright © 2021 The Authors. Published by American Chemical Society | |||||||||
| RIOXX Funder/Project Grant: |
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