AI Article Synopsis
- Cellulose nanofibers (CNF) were extracted from Curauá fibers using a mechanical grinder and mild chemical treatment, resulting in long, flexible nanofibers.
- SAXS techniques showed that these nanofibers have a twisted ribbon structure, and rheological measurements indicated high viscosity and thixotropic behavior, which suggests promising applications in the biomedical field.
- Toxicological studies revealed that the CNF materials are non-cytotoxic, with Vero cells showing higher adhesion to the CNF surface, likely due to their favorable surface properties and the absence of hazardous chemicals in their production.
Article Abstract
Cellulose nanofibers (CNF) were isolated from Curauá fibers (Ananas erectifolius L. B. Smith) through a mechanical grinder preceded by mild chemical treatment. Morphology and surface characteristics of the fibers were followed until it reaches the nanoscale as long and flexible nanofibers. In aqueous suspensions, SAXS techniques revealed that such nanofibers present a twisted ribbon structure while rheological measurements demonstrate its high viscosity and a thixotropic behavior. These characteristics suggests the potential application of CNF in biomedical field, which, in turn, stimulates the toxicological studies of such materials. The obtained materials do not show any sign of cytotoxicity by direct or indirect assays for cell viability and cell morphology using Vero cells. Moreover, during the adhesion test, the cells demonstrated higher affinity to the CNF surface. It can be related to its surface properties and its obtaining conditions, which did not use any hazardous chemicals.
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| http://dx.doi.org/10.1016/j.carbpol.2018.08.056 | DOI Listing |
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