1. Islamic Azad University North Tehran Branch 2. Islamic Azad University North Tehran Branch 3. Islamic Azad University North Tehran Branch 4. Islamic Azad University North Tehran Branch
Abstract
Introduction
Recently, developed nano composite with highly efficient antimicrobial properties are considered. in this study, a new magnetically responsive four-component nanocomposite consisting of nife2o4 , (3–mercaptopropyl) trimethoxysilane (tps)-tetraethyl orthosilicate (teos) , ag and ag@tio2 has been prepared by coating of nife2o4 nanoparticles with tps-teos and subsequent immobilization of ag and ag@tio2 nanoparticles onto the surface of the tps-teos shell. the connection between the ag and the sol–gel matrix relies on the coordination bonds between the sulfur group at the top of the tps molecule and the silver atoms on the surface of ag@tio2 core–shell nanoparticles. in order to determine the characterization of structure and morphology of nife2o4@tps-teos@ag@tio2
Methods
The field emission scanning of electron microscopy (fesem) and atomic force microscopy (afm) provided. the antibacterial activity of the synthesized nanocomposite was studied and compared with those of naked nife2o4, nife2o4@tps-teos and nife2o4@tps-teos@ag combined ,mic and mbc disk diffusion,xrd,sem,vsm,ft ir
Results
The zone of inhibitation is only seen in nife2o4@tps@teos@agtio2 after 3 attempts.
Conclusion
Usage of ag nanocomposite which coated with helping element such as
teos-tps@nife2o4 could inrease the antimicrobial effect.
