BioMed Research International

BioMed Research International / 2007 / Article
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Biomedical Applications of Colloidal Nanocrystals

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Volume 2007 |Article ID 084965 | https://doi.org/10.1155/2007/84965

Magdalena M. Stevanovic, Branka Jordovic, Dragan P. Uskokovic, "Preparation and Characterization of Poly(D,L-Lactide-co-Glycolide) Nanoparticles Containing Ascorbic Acid", BioMed Research International, vol. 2007, Article ID 084965, 8 pages, 2007. https://doi.org/10.1155/2007/84965

Preparation and Characterization of Poly(D,L-Lactide-co-Glycolide) Nanoparticles Containing Ascorbic Acid

Academic Editor: Marek Osinski
Received28 Mar 2007
Accepted29 Jun 2007
Published03 Sep 2007

Abstract

This paper is covering new, simplistic method of obtaining the system for controlled delivery of the ascorbic acid. Copolymer poly (D,L-lactide-co-glycolide) (DLPLG) nanoparticles are produced using physical method with solvent/nonsolvent systems where obtained solutions were centrifuged. The encapsulation of the ascorbic acid in the polymer matrix is performed by homogenization of water and organic phases. Particles of the DLPLG with the different content of ascorbic acid have different morphological characteristics, that is, variable degree of uniformity, agglomeration, sizes, and spherical shaping. Mean sizes of nanoparticles, which contain DLPLG/ascorbic acid in the ratio 85/150%, were between 130 to 200 nm depending on which stereological parameters are considered (maximal diameters Dmax, feret X, or feret Y). By introducing up to 15% of ascorbic acid, the spherical shape, size, and uniformity of DLPLG particles are preserved. The samples were characterized by infrared spectroscopy, scanning electron microscopy, stereological analysis, and ultraviolet spectroscopy.

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Copyright © 2007 Magdalena M. Stevanović et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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