Fatemeh-Sadat Ebnerasool - Department of Food Sciences and Technology, Faculty of pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Negar Motakef-Kazemi - Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.

The chitosan nanocomposites were rapidly prepared by simple solution method. This biopolymer matrix was modified by prepared nanoscale silver (Ag) using in situ synthesis from precursor and nanomontmorillonite (NMMT). Moreover, the samples were characterized by fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM), and energy dispersive x-ray spectroscopy (EDX). Moreover, the water vapor properties (WVP)of nanocomposites were investigated using gravimetric standard. In addition, the antibacterial activity of nanocomposite was measured by the well diffusion method on Muller–Hinton Agar against Escherichia coli (E. coli) by zone inhibition. Finally, based on the obtained results, the nanocomposite can have a good candidate for different applications and food packaging industry.

Nanocomposite,Chitosan,Nanoscale silver,Nanomontmorillonite,Packaging,