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Promoted hydrogel formation of lignin-containing arabinoxylan aerogel using cellulose nanofibers as a functional biomaterial
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-6247-5963
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7395-3302
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Fibre and Particle Engineering, University of Oulu, Oulu, Finland.ORCID iD: 0000-0003-4762-2854
2018 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 8, no 67, p. 38219-38228Article in journal (Refereed) Published
Abstract [en]

In this work, three-dimensional (3D) aerogels and hydrogels based on lignin-containing arabinoxylan (AX) and cellulose nanofibers (CNF) were prepared. The effects of the CNF and the crosslinking with citric acid (CA) of various contents (1, 3, 5 wt%) were evaluated. All the aerogels possessed highly porous (above 98%) and lightweight structures. The AX-CNF hydrogel with a CA content of 1 wt% revealed a favorable network structure with respect to the swelling ratio; nanofiber addition resulted in a five-fold increase in the degree of swelling (68 g of water per g). The compressive properties were improved when the higher CA content (5 wt%) was used; when combined with CNF, there was a seven-fold enhancement in the compressive strength. The AX-CNF hydrogels were prepared using a green and straightforward method that utilizes sustainable resources efficiently. Therefore, such natural hydrogels could find application potential, for example in the field of soft tissue engineering.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2018. Vol. 8, no 67, p. 38219-38228
National Category
Bio Materials Applied Mechanics
Research subject
Wood and Bionanocomposites; Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-71733DOI: 10.1039/C8RA08166BISI: 000451075500012Scopus ID: 2-s2.0-85057291251OAI: oai:DiVA.org:ltu-71733DiVA, id: diva2:1265357
Note

Validerad;2018;Nivå 2;2018-11-23 (johcin)

Available from: 2018-11-23 Created: 2018-11-23 Last updated: 2019-09-19Bibliographically approved
In thesis
1. From bio-based residues to natural nanofibers using mechanical fibrillation for functional biomaterials
Open this publication in new window or tab >>From bio-based residues to natural nanofibers using mechanical fibrillation for functional biomaterials
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Från biobaserade restprodukter till naturliga nanofibrer genom mekanisk fibrillering för funktionella material
Place, publisher, year, edition, pages
Luleå University of Technology, 2019
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
National Category
Materials Engineering Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
urn:nbn:se:ltu:diva-76015 (URN)978-91-7790-444-1 (ISBN)978-91-7790-445-8 (ISBN)
Public defence
2019-11-15, E632, Luleå tekniska universitet, 97187 Luleå, Luleå, 10:00 (English)
Opponent
Supervisors
Available from: 2019-09-19 Created: 2019-09-19 Last updated: 2019-09-19Bibliographically approved

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Berglund, LinnForsberg, FredrikJonoobi, MehdiOksman, Kristiina

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