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| Motta, Antonella |
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| Azevedo, Nuno Monteiro |
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Eriksson, John
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article
Development of nanocellulose scaffolds with tunable structures to support 3D cell culture
Abstract
Swollen three-dimensional nanocellulose films and their resultantaerogels were prepared as scaffolds towards tissue engineeringapplication. The nanocellulose hydrogels with various swelling degree(up to 500 times) and the resultant aerogels with desired porosity(porosity up to 99.7% and specific surface area up to 308 m<sup>2</sup>/g)were prepared by tuning the nanocellulose charge density, the swellingmedia conditions, and the material processing approach. Representativecell-based assays were applied to assess the material biocompatibilityand efficacy of the human extracellular matrix (ECM)-mimickingnanocellulose scaffolds. The effects of charge density and porosity ofthe scaffolds on the biological tests were investigated for the firsttime. The results reveal that the nanocellulose scaffolds could promotethe survival and proliferation of tumor cells, and enhance thetransfection of exogenous DNA into the cells. These results suggest theusefulness of the nanocellulose-based matrices in supporting crucialcellular processes during cell growth and proliferation.