Fabrication and evaluation of polyurethane cationic surfactants, and their potential on silver nanoparticles stability, surface activity, and biological activity

Abstract

The aggregation behavior and stability of silver nanoparticles (AgNs) are important considerations when exposed to various environments. AgNs have significant interests due to their unique properties. The cationic polymeric surfactants were investigated to coat or cape AgNs with a semi-permeable layer. Using Fourier Transform Infrared Spectroscopy and Gel permission chromatograph, the chemical structures were verified. Through the use of transmission electron microscopy, ultraviolet spectroscopy, particle size distribution, zeta potential, surface activities, and anti-bacterial activity, the produced cationic PUQOS and PUQLS surfactants containing silver nanoparticles were assessed. The results indicate that silver nanoparticles were stabilized in solution for seven days without aggregation using the prepared surfactants by coating their surfaces. The coating processes altered the zeta potential. The prepared polymeric surfactants with silver nanodispersion demonstrated practical activities against various standard G (+ve) and G (−ve) bacteria, yeast, and fungi.