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The effect of dehydration/rehydration of bacterial nanocellulose on its tensile strength and physicochemical properties
Abstrakt
Bacterial nanocellulose (BNC) is a natural biomaterial with a wide range of biomedical applications. BNC contains 99 % of water which makes it too thick to be used as a bioimplant material. The aim of the work was to determine the effect of the BNC dehydration followed by rehydration on its mechanical and physicochemical properties, in the context of the use of BNC as bio-prostheses in the cardiovascular system. Dehydration involved the convection-drying at 25 and 105 °C, and the freeze-drying, while rehydration - the soaking in water. All modified BNC samples had reduced thickness, and results obtained from FT-IR, XRD, and SEM analysis revealed that 25 °C BNC convection-dried after soaking in water was characterized by the highest: tensile strength (17.4 MPa), thermal stability (253 °C), dry mass content (4.34 %) and Iα/Iβ ratio (1.10). Therefore, 25 °C convection-dried BNC followed by soaking in water can be considered as a material suitable for cardio- vascular implants.
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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CARBOHYDRATE POLYMERS
nr 236,
strony 116023 - 116032,
ISSN: 0144-8617 - Język:
- angielski
- Rok wydania:
- 2020
- Opis bibliograficzny:
- Stanisławska A., Staroszczyk H., Szkodo M.: The effect of dehydration/rehydration of bacterial nanocellulose on its tensile strength and physicochemical properties// CARBOHYDRATE POLYMERS -Vol. 236, (2020), s.116023-116032
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.carbpol.2020.116023
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 218 razy