Cholinium-based ionic liquids with pharmaceutically active anions

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Novel ionic liquids (ILs) containing cholinium as a benign cation combined with anions based on five active pharmaceutical ingredients (APIs), namely, nalidixic acid, niflumic acid, 4-amino-salicylic acid, pyrazinoic acid and picolinic acid, were prepared via a simple and sustainable two-step anion exchange reaction. The solubility of the prepared pharmaceutically active ILs (API-ILs) in both water and simulated biological fluids at 25 °C and 37°C, as well as the solubility of the parent APIs, were measured. Further, in vitro cytotoxicity levels for both cholinium-based API-ILs and parent APIs were established using two different human cells lines, namely Caco-2 colon carcinoma cells and HepG2 hepatocellular carcinoma cells. Herein, the dual nature of ILs is exploited by combining the cheap, available and essential nutrient cholinium cation with pharmaceutically active anions, upgrading the chemical, physical and biopharmaceutical properties, particularly melting point, aqueous solubility and the potential to penetrate cell membranes of the parent APIs, without impair their cytotoxicity response which prompt opportunities for creating further advances in pharmaceutical challenges. This journal is

Original languageEnglish
Pages (from-to)28126-28132
Number of pages7
JournalRCS Advances
Issue number53
Publication statusPublished - 2014


Dive into the research topics of 'Cholinium-based ionic liquids with pharmaceutically active anions'. Together they form a unique fingerprint.

Cite this