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Thermodynamic aspects of the preparation of amorphous solid dispersions of Naringenin with enhanced dissolution rate by Jha, Durgesh K.; Shah, Devanshi S.; Amin, Purnima D. is a Pharmacology, Toxicology and Pharmaceutics article available to read on EtoBox.

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Amorphous ternary solid dispersions of poorly water-soluble Naringenin (NRG) in Poloxamer 188 (POX) and Neusilin US2 (NSL) were prepared in a Hot- Melt Extruder (HME) using the principle of Low-Temperature Solubilization (LTS). Before HME, the NRG-POX solid-state interaction was investigated using Flory Huggins (F-H) theory. Construction of the composition-phase diagram showed Gibbs free energy to be negative close to the melting temperature of NRG, indicating a miscible system. The temperature-composition phase diagram provided insights on the phase behavior of the active-polymer solid dispersion system. The interactions and phase behavior predicted within the framework of the F-H theory were further investigated using Differential Scanning Calorimetry (DSC), X-Ray Diffraction (XRD), Hot Stage Microscopy (HSM) and Fourier-transform infrared spectroscopy (FT-IR). Based on the findings, amorphous solid dispersions of NRG were prepared via HME, which demonstrated a significant increase in the dissolution rate (p ≤ 0.05). The enhancement of the dissolution rate is due to conversion from crystalline to amorphous form, as confirmed by DSC and XRD. The amorphous NRG prepared in the curre

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Author

Jha, Durgesh K.; Shah, Devanshi S.; Amin, Purnima D.

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-5173)

Published

2020

Language

EN

Field

Pharmacology, Toxicology and Pharmaceutics (Life Sciences)