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The aim of this paper was to prepare chitosan microspheres characterised by a narrow dispersion of dimensions, suitable for application for drug delivery systems (DDS). The materials, unmodified as well as functionalised using polyethyleneimine were then used for encapsulation of drug-mimicking dyes. The polymeric beads were prepared by one stage process of membrane emulsification. The encapsulation...
Chitosan is naturally abundant biopolymer that could be used as chelating sorbent for removal of metal ions from aqueous solutions. In this study the uniform-sized chitosan microspheres and their modified derivatives were prepared by using the one stage membrane emulsification process. The obtained sorbents were used for removal of chromium VI ions. The sorption evaluation was carried out at different...
In the paper, the preeliminary study of chitosan micro and nanospheres precipitation due to two
reverse emulsions (W/O) coalescence is described. The composition conditions, which must be
filled to obtain stable reverse emulsion is pointed out. Furthermore, the parameters of ultrasonic
emulsification and coalescence technique are presented and finally, morphological study of
obtained micro and...
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