Imidazolium ionic liquids as effective antiseptics and disinfectants against drug resistant S. aureus: In silico and in vitro studies

Computational Biology and Chemistry
Diana HodynaLarisa Metelytsia

Abstract

This paper describes Quantitative Structure-Activity Relationships (QSAR) studies, molecular docking and in vitro antibacterial activity of several potent imidazolium-based ionic liquids (ILs) against S. aureus ATCC 25923 and its clinical isolate. Small set of 131 ILs was collected from the literature and uploaded in the OCHEM database. QSAR methodologies used Associative Neural Networks and Random Forests (WEKA-RF) methods. The predictive ability of the models was tested through cross-validation, giving cross-validated coefficients q2 = 0.82-0.87 for regression models and overall prediction accuracies of 80-82.1% for classification models. The proposed QSAR models are freely available online on OCHEM server at https://ochem.eu/article/107364 and can be used for estimation of antibacterial activity of new imidazolium-based ILs. A series of synthesized 1,3-dialkylimidazolium ILs with predicted activity were evaluated in vitro. The high activity of 7 ILs against S. aureus strain and its clinical isolate was measured and thereafter analyzed by the molecular docking to prokaryotic homologue of a eukaryotic tubulin FtsZ.

Citations

Dec 22, 2019·International Journal of Molecular Sciences·Robert AncuceanuMihaela Dinu
Feb 26, 2020·Applied Microbiology and Biotechnology·Lan Li WongThomas Seviour
Nov 11, 2020·International Journal of Molecular Sciences·Sónia N PedroMara G Freire
Feb 8, 2021·Drug Discovery Today·Manuel SimõesFernanda Borges
Nov 24, 2021·Chemical Society Reviews·Penghao WeiBing Yan

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