title: Multifunctional nanocomposites of chitosan, silver nanoparticles, copper nanoparticles and carbon nanotubes for water treatment: Antimicrobial characteristics.
abstract: Multifunctional nanocomposites of chitosan with silver nanoparticles, copper nanoparticles and carbon nanotubes either as bi- or multifunctional nanocomposites were prepared. Change in the overall morphology of the prepared nanocomposites was observed; carbon nanotubes, Ag NPs and Cu NPs are distributed homogeneously inside the polymer matrix individually in the case of the bi-nanocomposites while a combination of different dimensional shapes; spherical NPs and nanotubes was observed in the multifunctional nanocomposite. Multifunctional nanocomposites has a higher antimicrobial activity, in relative short contact times, against both Gram negative and Gram positive bacteria; E. coli, Staphylococcus aureus; respectively in addition to the fungal strain; Aspergillus flavus isolated from local wastewater sample. The nanocomposites are highly differentiable at the low contact time and low concentration; 1% concentration of the multifunctional nanocomposite is very effective against the tested microbes at contact time of only 10min.
authors.affiliation: Egyptian Petroleum Research Institute, Nasr City, Cairo P.B. 11727, Egypt. Electronic address: raniaelsayed@yahoo.com.
authors.forename: Rania E
authors.initials: RE
authors.lastname: Morsi
authors.affiliation: Egyptian Petroleum Research Institute, Nasr City, Cairo P.B. 11727, Egypt.
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: Alsabagh
authors.affiliation: Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Egypt.
authors.forename: Shimaa A
authors.initials: SA
authors.lastname: Nasr
authors.affiliation: Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Egypt.
authors.forename: Manal M
authors.initials: MM
authors.lastname: Zaki
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology; D048271:Chitosan / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D000890:Anti-Infective Agents; D037742:Nanotubes, Carbon; D012834:Silver; D003300:Copper; D048271:Chitosan
keywords: Antimicrobial characteristics; Bi-nanocomposites; Chitosan; Multifunctional nanocomposites; Water disinfection