Novel antimicrobial paint based on binary and ternary dioxouranium (VI) complexes for surface coating applications

Abstract

New antimicrobial waterborne paint formulation based on Schiff base ligand and its binary and ternary complexes of UO22+ ion, as antimicrobial additives, were prepared and evaluated. The prepared additives were confirmed by elemental analysis, molar conductance, IR, and solid reflectance spectra in addition to the magnetic moment measurements, thermal study, XRD and SEM analysis were utilized to investigate the coordination behavior of these complexes. These antimicrobial compounds were physically added to waterborne coating formulation at a laboratory scale to obtain the antimicrobial of the coating formulation against some of Gram-negative, Gram-positive bacteria and fungi. The results of the biological activities indicated that the ligand and its metal complexes exhibit a very good antimicrobial effect for paint formulations either in wet or dry coated films. Also, the mechanical resistance of coating films was studied. It was found that the prepared antimicrobial additives improved the film performance and enhanced physical and mechanical resistance of the coated film.