TY - JOUR ID - 578 TI - New Chitosan/Ag/Carbacylamidophosphate nanocomposites: Preparation and antibacterial study JO - Advances in Environmental Technology JA - AET LA - en SN - 2476-6674 AU - Oroujzadeh, Nasrin AD - Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST) Y1 - 2017 PY - 2017 VL - 3 IS - 3 SP - 151 EP - 158 KW - Carbacylamidophosphate KW - Chitosan KW - Ag Nanoparticles KW - Nanocomposite KW - Antibacterial activity DO - 10.22104/aet.2017.578 N2 - Two new Chitosan-based nanocomposite films were prepared: Chitosan /7% Ag nanoparticles (NPs) (NC1) and Chitosan/7% Ag NPs/5%Carbacylamidophosphate(NC2), in which the carbacylamidophosphate derivitive is N-Nicotinyl-N′,N″- bis(hexamethylenyl) phosphorictriamide (NHE) with the formula: C5H4NC(O)NHP(O)(NC6H12)2. X-ray Powder Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray Spectroscopy (EDS) methods were used to characterize and confirm the prepared frameworkrs. XRD graph of the two nanocomposites showed all the characteristic peaks of NHE, Ag NPs, and chitosan, indicating the fact that the preparing process has not made any changes in the phases of the nanocomposites components. All the SEM micrographs and EDS analysis results also confirmed the desired structures. To study the effect of the additive NHE on the antibacterial activity of the films, in vitro antibacterial tests were done on the prepared nanocomposites against two Gram-positive (Staphylococcus aureus, Bacillus cereus) and two Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa) in Brain-Heart Infusion(BHI) medium. Results showed that the antibacterial effects of the nanocomposite containing NHE on each of the four bacteria is stronger than those for the nanocomposite without NHE. UR - https://aet.irost.ir/article_578.html L1 - https://aet.irost.ir/article_578_9a693a786282243e7eaf0660ef202e09.pdf ER -