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Fabrication of cellulose nanoparticles through electrospraying. | LitMetric

Fabrication of cellulose nanoparticles through electrospraying.

IET Nanobiotechnol

Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran.

Published: September 2018

AI Article Synopsis

  • * Key factors tested included solution concentration (1-3 wt%), voltage (15-23 kV), nozzle-collector distance (10-25 cm), and feed rate (0.03-0.0875 ml/h), with the smallest nanoparticles measuring approximately 40 nm in size.
  • * Analysis techniques such as Fourier transform infrared and X-ray diffraction confirmed that the cellulose structure remained chemically unchanged post-process, and the nanoparticles exhibited lower crystallinity compared to raw cellulose, with no LiCl salt detected

Article Abstract

This study reports the fabrication of cellulose nanoparticles through electrospraying the solution of cellulose in -dimethylacetamide/lithium chloride solvent as well as investigating the effect of electrospraying conditions and molecular weight on the average size of electrosprayed nanoparticles. Electrospraying of cellulose was carried out with the following range for each factor, namely concentration = 1-3 wt%, voltage = 15-23 kV, nozzle-collector distance = 10-25 cm, and feed rate = 0.03-0.0875 ml/h. The smallest nanoparticles had an average size of around 40 nm. Results showed that lowering the solution concentration and feed rate, as well as increasing the nozzle-collector distance and applied voltage led to a decrease in the average size of the electrosprayed cellulose nanoparticles. Fourier transform infrared analysis proved that no chemical change had occurred in the cellulose structure after the electrospraying process. According to X-ray diffraction (XRD) results, cellulose nanoparticles showed a lower degree of crystallinity in comparison with the raw cellulose powder. XRD results also proved the absence of LiCl salt in the electrosprayed nanoparticles.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8676077PMC
http://dx.doi.org/10.1049/iet-nbt.2018.0044DOI Listing

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