Synthesis and Antibacterial Performance of Nano Composites

In this research work polymer nanocomposite membrane with prolong silver release causing long-lasting disinfection(antibacterial)Dr effects have been extensively studied. New, facile and novel composite materials have been reported, three different materials are reported in this work. (i) APES-AgNPs, (ii) Silica-AgNPs@(crust and core) and (iii) Gr-AgNPs. The first study (Chapter 2) reports the antibacterial disinfection properties of a series of AgNPs(AgNPs) immobilized membranes. These structural characterizations revealed that AgNPs ranging from 5-40 nm were immobilized on the surface of the polymer membrane. Antibacterial tests of the samples showed that the AgNPs-APES exhibited higher activity than the AgNPs-PES unfunctionalized membrane. Antibacterial activities of the samples were carried out to investigate the disinfection performance of the samples on the Gram negative bacteria (Escherichia coli). It was suggested that the sample obtained in the third run (R3) exhibited the highest antibacterial activity as compared to other samples, toward disinfection of bacteria due to its superior properties. This study provides a unique and novel application route.