Morphological changes of poly(DI-lactide-co-glycolide) nano-particles containing ascorbic acid during in vitro degradation process
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Poly(dl-lactide-co-glycolide) powder composed of uniform particles with the mean particle size in the range of 110-170 nm was obtained from commercial granules. Ascorbic acid in different concentrations was encapsulated into the poly(dl-lactide-co-glycolide) particles. Degradation of the latter in terms of morphological changes in the physiological solution was followed. Within a period of 2 months, the particles completely degrade and all the ascorbic acid is released. The samples were characterized by ultraviolet spectroscopy and scanning electron microscopy. © 2008 The Authors.
Кључне речи:degradation / DLPLG nanospheres / DLPLG/ascorbic acid nanoparticles / SEM / UV
Извор:Journal of Microscopy, 2008, 232, 3, 511-516