The chemical structure of newly synthesized cationic surfactants based on Schiff base was confirmed using Fourier transform infrared spectroscopy,proton nuclear magnetic resonance spectroscopy,and mass spectroscopy.The synthesized surfactants were used in the synthesis of silver nanoparticles by a simple one-step method.The silver nanoparticle(AgNPs) formation was confirmed using transmission electron microscopy(TEM),electron diffraction(SAED),dynamic light scattering(DLS),and energy dispersive X-ray spectroscopy(EDX).The structure of the surfactant played an important role in the synthesis process.Increasing the hydrophobic chain length,the stability,and the amount of surfactant increased the quantity of AgNPs formed.The surface activity of the synthesized cationic surfactants was determined using surface tension measurements at three different temperatures.The synthesized surfactants showed a high tendency toward adsorption and micellization.Increasing the hydrophobic chain length of the synthesized surfactant increased its adsorption.Screening the synthesized cationic surfactants and their nano-form against bacteria and fungi showed that they are highly effective.The silver nanoparticles enhanced the biological activity of the synthesized cationic surfactants. The chemical structure of a newly synthesized cationic surfactants based on Schiff base was confirmed using Fourier transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and mass spectroscopy. The synthesized surfactants were used in the synthesis of silver nanoparticles by a simple one-step method. The structure of the surfactant plays an important role in (d), dispersible X-ray spectroscopy (EDX). The structure of the nanoparticle (AgNPs) was confirmed by transmission electron microscopy the synthesis process.Increasing the hydrophobic chain length, the stability, and the amount of surfactant increased the quantity of AgNPs formed. The surface activity of the hydrogenation chain was measured using surface tension measurements at three different temperatures showed a high disadvantage toward adsorption and micellization. creasing the hydrophobic chain length of the synthesized surfactant increased its adsorption. Screening the universal cationic surfactants and their nano-form against bacteria and fungi showed that they are highly effective. silver nanoparticles enhanced the biological activity of the synthesized cationic surfactants.