Studying the effect of newly synthesized cationic surfactant on silver nanoparticles formation and their biological activity

The chain length of the synthesized cationic surfactant effect on the amount and stability of the formed silver nanoparticles. The stability of prepared silver nanoparticles increases by increasing the chain length of the synthesized cationic surfactants. The amount of the formed silver nanoparticles increases by increasing the chain length of synthesized cationic surfactants. The chemical structure of synthesized surfactants has been confirmed using FTIR and (HNMR)-H-1 spectroscopy. The used method for synthesizing silver nanoparticles produces uniform with very narrow size range. Transmission electron microscope, dynamic light scattering, UV-Vis spectroscopy and energy dispersive X-ray have been used to confirm the formation of silver nanoparticles and the effective role of the used cationic surfactants. The synthesized cationic surfactants and their silver nanoform showed a good antibiotic effect against fungi and bacteria. The silver nanoparticles enhanced the antibiotic effect of synthesized cationic surfactants. (C) 2015 Elsevier B.V. All rights reserved.