Imidazolium-based ionic liquids disrupt saccharomyces cerevisiae cell membrane integrity

Area of Science:

• Chemistry
• Biotechnology
• Microbiology

Background:

• Ionic liquids (ILs) are versatile compounds with tunable properties and broad applications in catalysis, extraction, and biotechnology.
• Imidazolium-based ILs are particularly interesting due to their unique characteristics and ease of synthesis.

Purpose of the Study:

• To determine the antifungal activities of various imidazolium-based ionic liquids against Saccharomyces cerevisiae.
• To investigate the relationship between alkyl chain length and antifungal efficacy.
• To explore the impact of ionic liquids on yeast cell membrane integrity and biochemical composition.

Main Methods:

• Minimum Inhibitory Concentration (MIC) estimation to quantify antifungal activity.
• Fourier-Transform Infrared (FTIR) spectroscopy to analyze biochemical alterations in yeast cells.
• Statistical analysis and machine learning for trend confirmation and prediction.

Main Results:

• Antifungal activity increased with longer alkyl groups on the imidazolium cation.
• Ionic liquids disrupted the cell membrane integrity of Saccharomyces cerevisiae.
• FTIR analysis revealed alterations in cellular fatty acid content, correlating with increased antifungal activity.
• Machine learning models achieved 83% accuracy in classifying antifungal activities based on FTIR spectra.

Conclusions:

• Imidazolium-based ionic liquids demonstrate significant antifungal potential against Saccharomyces cerevisiae.
• Alkyl chain length is a key factor in modulating the antifungal efficacy and mechanism of action.
• FTIR spectroscopy combined with machine learning offers a promising approach for predicting antifungal activity, with potential benefits for the pharmaceutical and medical industries.