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Bagasse-A major agro-industrial residue as potential resource for nanocellulose inks for 3D printing of wound dressing devices
RISE - Research Institutes of Sweden, Bioeconomy, PFI.ORCID iD: 0000-0002-6183-2017
IMAM Instituto de Materiales de Misiones, Argentina.
RISE - Research Institutes of Sweden, Bioeconomy, PFI.
RISE - Research Institutes of Sweden, Bioscience and Materials, Chemistry and Materials.
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2019 (English)In: Addit. Manuf., ISSN 2214-7810, Vol. 28, p. 267-274Article in journal (Refereed) Published
Abstract [en]

Sugarcane bagasse, an abundant residue, is usually burned as an energy source. However, provided that appropriate and sustainable pulping and fractionation processes are applied, bagasse can be utilized as a main source of cellulose nanofibrils (CNF). We explored in this study the production of CNF inks for 3D printing by direct-ink-writing technol. The CNF were tested against L929 fibroblasts cell line and we confirmed that the CNF from soda bagasse fibers were found not to have a cytotoxic potential. Addnl., we demonstrated that the alginate and Ca2+ caused significant dimensional changes to the 3D printed constructs. The CNF-alginate grids exhibited a lateral expansion after printing and then shrank due to the crosslinking with the Ca2+. The release of Ca2+ from the CNF and CNF-alginate constructs was quantified thus providing more insight about the CNF as carrier for Ca2+. This, combined with 3D printing, offers potential for personalized wound dressing devices, i.e. tailor-made constructs that can be adapted to a specific shape, depending on the characteristics of the wound healing treatment.

Place, publisher, year, edition, pages
Elsevier B.V. , 2019. Vol. 28, p. 267-274
Keywords [en]
Nanocellulose, Alginate, Scaffolds, 3D printing, Biomaterials, Bagasse
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40645DOI: 10.1016/j.addma.2019.05.014OAI: oai:DiVA.org:ri-40645DiVA, id: diva2:1368882
Available from: 2019-11-08 Created: 2019-11-08 Last updated: 2019-11-08Bibliographically approved

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Chinga-Carrasco, GaryHåkansson, Joakim

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