Preparation of Hollow Colloidosomes particle using Sucrose Ester, S1570 and Polyvinyl Alcohol as Surfactant and Polycaprolactone and Polyhydroxyalkanoates as Polymer

The aim of this study was to characterize the preparation of hollow colloidosomes using two
steps preparation by Shahidan et al. (2013) method with different structural polymers and
different surfactant which are biocompatible and biodegradable. In this study, two structural
polymers were used; polyhydroxyalkanoates (PHA) and polycaprolactone (PCL). The surfactants
used were sucrose stearate (S1570) and polyvinyl alcohol (PVA). There are three different
parameters used in preparation of PVA/PCL hollow colloidosomes; speed homogenizer,
evaporation temperature and feeding rate of oil phase. In S1570/PCL hollow colloidosomes
preparation, an effect of polymer surfactant concentration and a brief study on the preparation
scale were proposed. There are two different scales used in S1570/PCL hollow colloidosomes
preparation which are small scale and large scale preparation. In this study, hollow
colloidosomes were prepared using an oil-in-water (O/W) emulsion solvent evaporation method.
Another study proposed is S1570/PHA hollow colloidosomes. PHA is a structural polymer that
does not affect the environment because it is a biodegradable material. The physical properties of
hollow colloidosomes prepared using different parameters, surfactant and polymer was
characterized and analyzed. The interesting phenomenon in this study is the birefringence
phenomenon of hollow colloidosomes which confirmed the colloidosomes shell was made of
small particles.