Key words: supercritical fluids, microparticles, nanoparticles, chitosan
Micro- and nanoparticles of five chitosan derivatives were obtained for the first time
using Supercritical Assisted Atomization (SAA) method. The investigation of obtained
disperse chitosan forms using optical and scanning electron microscopies (SEM) and
particle size distribution technique demonstrated their uniformity. Depending on the
experimental conditions, particle size varies in the range of 0,3÷5 mm. It was concluded
that SAA method can be efficiently used for micronization of various chitosan
derivatives.