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The effect of hydration on the material and mechanical properties of cellulose nanocrystal-alginate composites
- Source :
- Carbohydrate Polymers, Carbohydrate Polymers, Elsevier, 2018, 179, pp.186-195
- Publication Year :
- 2017
-
Abstract
- Alginate is commonly used in the form of hydrogels in biomedical applications. It is known to be highly sensitive to liquid exposure and can degrade or solubilize easily. This study attempts to improve the mechanical and material properties in various humidity conditions and in liquid immersion of thin alginate films with the addition of unmodified and oxidized cellulose nanocrystals (CNCs, CNC-Ts). CNCs and CNC-Ts were added to alginate composites in varying amounts, and the material and mechanical properties were measured in dry, humid, and liquid conditions. It was shown that the properties can be enhanced with the addition of nanocellulose as tested by liquid uptake, and mechanical testing. These results suggest that the addition of TEMPO-oxidized nanocellulose crystals improves the performance and longevity of alginate when exposed to phosphate buffer solution (PBS) compared to deionized water. This improved performance was shown to have a limited effect on the adhesion of mesenchymal stem cells (MSCs) to the surface of the nanocomposites.
- Subjects :
- Materials science
Nanocomposite
Polymers and Plastics
Organic Chemistry
Oxidized cellulose
02 engineering and technology
Adhesion
[CHIM.MATE]Chemical Sciences/Material chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Nanocellulose
chemistry.chemical_compound
chemistry
Nanocrystal
Self-healing hydrogels
Materials Chemistry
Composite material
Cellulose
0210 nano-technology
Material properties
Subjects
Details
- ISSN :
- 18791344 and 01448617
- Volume :
- 179
- Database :
- OpenAIRE
- Journal :
- Carbohydrate polymers
- Accession number :
- edsair.doi.dedup.....7dd5395eb660bd791403ab82f0ef0195