The effect of electrostatic interactions on the formation of pharmaceutical eutectics
Citation:
Wojnarowska, Z. and Smolka, W. and Zotova, J. and Knapik-Kowalczuk, J. and Sherif, A. and Tajber, L. and Paluch, M., The effect of electrostatic interactions on the formation of pharmaceutical eutectics, Physical Chemistry Chemical Physics, 20, 43, 2018, 27361-27367Download Item:
The Effect of Electrostatic Interactions.docx (Accepted for publication (author's copy) - Peer Reviewed) 9.271Mb
Abstract:
Over the past decade, the formation of pharmaceutical eutectics has become a very attractive strategy to increase the bioavailability of active pharmaceutical ingredients (APIs). A great advantage of a eutectic phase, which can be obtained by simple physical mixing of solid materials, is the possibility to obtain a material with desired physicochemical properties only by varying the molar ratio of the parent components. In this work, we have investigated the ability of two protic ionic liquids (PILs), which are hydrochloride salts of lidocaine and prilocaine, as well as their non-ionic counterparts, to form eutectic mixtures. To gain an insight into the calorimetric properties of the formed dipolar and ionic mixtures, differential scanning calorimetry was employed. The mechanism of formation of deep eutectic mixtures on the molecular level was investigated by ab initio quantum mechanics calculations. The effect of electrostatic interactions on the eutectic transition, glass forming ability and the physical stability of pharmaceutical eutectics was also revealed.
Author's Homepage:
http://people.tcd.ie/ltajberDescription:
PUBLISHED
Author: Tajber, Lidia
Type of material:
Journal ArticleSeries/Report no:
Physical Chemistry Chemical Physics20
43
Availability:
Full text availableKeywords:
Eutectic mixtures, Active Pharmaceutical Ingredients (APIs), Protic Ionic Liquids (PILs), Calorimetric properties, Dipolar mixtures, Ionic mixturesDOI:
http://dx.doi.org/10.1039/c8cp05905eLicences: