The micellization of tetradecyltrimethylammonium bromide and cefixime trihydrate mixture: investigation of the effects of sodium-based electrolytes and temperatures on the physico-chemical parameters and interaction forces

Abstract

ABSTRACT This study exposes the influence of sodium electrolytes and temperature on the interaction forces between tetradecyltrimethylammonium bromide (TTAB) and antibiotic cefixime trihydrate (CMT). The results highlight the significance of considering temperature (from 300.55 to 320.55 K) and electrolytes (NaBr, Na2SO4, Na3PO4, and CH3COONa (NaOAc)) effects when designing drug formulations. Conductometric method was utilised to compute and understand physicochemical parameters occurring during drug-surfactant micellization. The addition of sodium electrolytes favours the micellization of the TTAB and CMT system in aq. salts solution (a decrease of CMC was acquired) except at higher NaOAc concentrations. In all the solvents used herein, the CMC values were detected to be increased with the escalation of working temperature. The and expose the survival of hydrophobic interaction involving TTAB and CMT drug in aq. medium whereas both electrostatic and hydrophobic interaction are in function in aq. salts medium. As an extension of the thermodynamic assessment, the molar heat capacity were estimated and discussed. The thermodynamics of transfer (, , and ) and enthalpy-entropy compensation parameters for TTAB + CMT micelles were also analysed. This comprehension of drug-surfactant interaction holds utmost significance in the development of efficient drug formulations and the optimisation of drug delivery techniques.