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Properties of solid dispersions of selected magnesium salts and the absorption process of Mg2+ ions in vitro Cover

Properties of solid dispersions of selected magnesium salts and the absorption process of Mg2+ ions in vitro

Open Access
|Feb 2012

Abstract

The paper presents an application of phosphatidylcholine 45% (PC 45) and polyvinylpyrrolidone (PVP) in formulations of magnesium salts such as Mg(VitB6) and Mg(VitB6Arg) prepared by solid dispersion (SD) techniques. The evaluation of influence of the selected carriers on some physicochemical properties of solid dispersions and on the absorption process of Mg +2 ions in vitro were made. An infrared (IR) spectra study suggested creation of a hydrogen bond between the carriers and the examined magnesium salts. The results of the following thermal analysis: differential thermal analysis (DTA), thermogravimetry (TG), and differential scanning calorimetry (DSC) showed that application of PVP into SD lower the temperature of the decomposition process. However, in the case of PC 45 into SD the characteristic thermal effects of higher temperatures were observed. Moreover, values of the enthalpy SD of decomposition process were decreased. The results of these studies on absorption process of Mg2+ ions in vitro showed the positive influence of the applied carriers on the partition coefficient values (log P) in the examined formulation.

DOI: https://doi.org/10.2478/v10013-011-0006-3 | Journal eISSN: 1898-0309 | Journal ISSN: 1425-4689
Language: English
Page range: 55 - 67
Published on: Feb 15, 2012
Published by: Polish Society of Medical Physics
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2012 Waclawa Marcoin, Henryk Duda, Dariusz Chrobak, published by Polish Society of Medical Physics
This work is licensed under the Creative Commons License.

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