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Solubility enhancement of metronidazole using natural deep eutectic solvents: Physicochemical and thermodynamic studies
Abstrakt
This research aimed to explore the utility of natural deep eutectic solvents (NADES) as the co-solvents for slightly water-soluble metronidazole (MNZ). After testing 70 wt% (percentage by weight) aqueous mixtures of seven NADESs, it was found that MNZ had the highest solubility in water solutions of NADES composed of choline chloride (ChCl) and citric acid (CA). The solubility of MNZ (expressed as 103 mol fraction) increased with the concentration of ChCl:CA NADES (from 6.7743 to 26.8518 at 298.5 K, for 30 and 70 wt% NADES-water mixtures, respectively), and it was more effective when compared to aqueous solutions of individual NADES components with wt% corresponding to these in the NADES-water mixtures. The study also found a preferable mixing of MNZ with aqueous solutions of NADES reflected by negative values of standard molar enthalpy change of mixing (approx. − 4.2 kJ·mol−1), compared with positive values in the case of MNZ mixing with water or ChCl aqueous solutions (approx. 7.3 kJ·mol−1). Comparative research conducted on the volume and acoustics of MNZ in water and aqueous solutions of ChCl, CA, and ChCl:CA NADES also confirmed stronger interactions between the drug and NADES and CA. The dominant interactions between MNZ and co-solvent were hydrophilic-hydrophobic and hydrophobic-hydrophobic. This effect increased in the following strength order: ChCl < NADES < CA. In conclusion, the obtained NADES seems to be a promising co-solvent which provides solid grounds for further research to evaluate the full potential in pharmaceutical design of MNZ liquid formulations.
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Autorzy (5)
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Adrian Szewczyk mgr farm.
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Jakub Ruszkowski mgr n. med.
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Magdalena Prokopowicz dr hab. n. farm.
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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JOURNAL OF MOLECULAR LIQUIDS
nr 410,
ISSN: 0167-7322 - Język:
- angielski
- Rok wydania:
- 2024
- Opis bibliograficzny:
- Szewczyk A., Warmińska D., Ruszkowski J., Szymankiewicz M., Prokopowicz M.: Solubility enhancement of metronidazole using natural deep eutectic solvents: Physicochemical and thermodynamic studies// JOURNAL OF MOLECULAR LIQUIDS -,iss. 410 (2024), s.125604-
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.molliq.2024.125604
- Źródła finansowania:
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- COST_FREE
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 6 razy
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