Mechanistic insights into acyclovir-polyethylene glycol 20000 binary dispersions.
| Autor: | Venkateskumar K; Unit of Pharmaceutical Technology, Faculty of Pharmacy, AIMST University, Semeling 08100, Malaysia., Parasuraman S; Unit of Pharmacology, Faculty of Pharmacy, AIMST University, Semeling 08100, Malaysia., Gunasunderi R; Colloid Interface Science Centre, Centre of Excellence, Malaysian Rubber Board, Experiment Station, Sungai Buloh, Selangor DE, Malaysia., Sureshkumar K; KMCH College of Pharmacy, Coimbatore, Tamil Nadu, India., Nayak MM; Spectroscopy Analytical Test Facility, Indian Institute of Science, Bengaluru, Karnataka, India., Shah SA; Faculty of Pharmacy, Universiti Teknologi Mara, Puncak Alam Campus, Selangor, Dahrul Ehsan, Malaysia., Kassen K; Unit of Pharmaceutical Technology, Faculty of Pharmacy, AIMST University, Semeling 08100, Malaysia., Kai HW; Unit of Pharmaceutical Technology, Faculty of Pharmacy, AIMST University, Semeling 08100, Malaysia. |
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| Jazyk: | angličtina |
| Zdroj: | International journal of pharmaceutical investigation [Int J Pharm Investig] 2016 Oct-Dec; Vol. 6 (4), pp. 194-200. |
| DOI: | 10.4103/2230-973X.195925 |
| Abstrakt: | Objective: The objective of this study is to provide a mechanistic insight into solubility enhancement and dissolution of acyclovir (ACY) by polyethylene glycol20000 (PEG20000). Materials and Methods: Solid dispersions with differing ratios of drug (ACY) and carrier (PEG20000) were prepared and evaluated by phase solubility, in vitro release studies, kinetic analysis, in situ perfusion, and in vitro permeation studies. Solid state characterization was also done by Powder X-Ray Diffraction (PXRD), Differential Scanning Calorimetry (DSC), Fourier Transform Infrared spectroscopy (FT-IR) analysis and surface morphology was assessed by Polarizing Microscopic Image (PMI) analysis, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and Nuclear Magnetic Resonance (NMR) analysis. Results: Thermodynamic parameters proved the solubilization effect of carrier. The aqueous solubility and dissolution of ACY were increased in all samples. Formation of solid solution, crystallinity reduction, and absence of interaction between drug and carrier was proved by XRD, DSC, and FTIR analysis. The particle size reduction and change in surface morphology were confirmed by SEM and AFM and analysis. The permeation coefficient and amount of drug diffused was higher in samples as compared to ACY. The stability was high in dispersions, and it was proved by NMR analysis. Conclusion: The mechanical insights into the enhancement of solubility and dissolution could be used as a platform to improve the aqueous solubility for other poor water soluble drugs. Competing Interests: There are no conflicts of interest. |
| Databáze: | MEDLINE |
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