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Chitin nanofibers were prepared from commercially available chitin powder via esterification modification and subsequent ultrasound treatment. The obtained chitin nanofibers were characterized using dynamic light scattering (DLS), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), 13C CP-MAS (cross-polarization under magic-angle spinning) solid state nuclear magnetic resonance...
Amylose aqueous solutions (1wt%, 3wt% and 5wt%) were treated with 100W ultrasound for various periods of time and used to prepare amylose nanoparticles (ANPs) via nanoprecipitation by adding the amylose solutions drop-wise into absolute ethanol. Viscosity average molecular weight and size distribution of the ultrasonic treated amylose were determined by measuring intrinsic viscosity and using size...
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