ABSTRACT
Science and technology play a key role in the extended life expectancy. In this sense, a wide range of innovative techniques and new devices have been developed, resulting in a reduction of morbidity and mortality. The use of drug delivery systems to improve the efficacy of bioactive molecules remains essential strategy for achieving the treatment against diseases and the progress in this field has been essential. In this context, synthetic, semi-synthetic, or natural polymers are frequently used for developing drug delivery systems. Accordingly, their application goes from the generation of suspension with cyclodextrins to solubilize hydrophobic drugs to the formation of matrices which control, by means of their degradation, the release of drugs.
