title: Styrene N-vinylpyrrolidone metal-nanocomposites as antibacterial coatings against Sulfate Reducing Bacteria.
abstract: Copolymer of styrene, and vinylpyrrolidone was prepared by various techniques. Different nanometals and nanometal oxides were added into the copolymer as antimicrobial agents against Sulfate Reducing Bacteria (SRB). The nanocomposite chemical structure was confirmed by using FTIR, (1)H NMR spectroscopy and thermogravimetric analysis (TGA). The biocidal action of these nanocomposites against the SRB was detected using sulfide determination method in Postgate medium B. The data indicated that the nanocomposites had an inhibitory effect on the growth of SRB and reduced the bacterial corrosion rate of mild steel coupons. The prepared nanocomposites have high inhibition efficiency when applied as coatings and show less efficiency when applied as solids or solution into SRB medium. The copolymer and its nanocomposites effectively reduced the total corrosion rate as determined by total weight loss method.
authors.affiliation: Analysis and Evaluation Department, Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El-Zomor St., Nasr City, 11727 Cairo, Egypt.
authors.forename: M
authors.initials: M
authors.lastname: Fathy
authors.forename: A
authors.initials: A
authors.lastname: Badawi
authors.forename: A M
authors.initials: AM
authors.lastname: Mazrouaa
authors.forename: N A
authors.initials: NA
authors.lastname: Mansour
authors.forename: E A
authors.initials: EA
authors.lastname: Ghazy
authors.forename: M Z
authors.initials: MZ
authors.lastname: Elsabee
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D002850:Chromatography, Gel; D020099:Coated Materials, Biocompatible / Q000494:pharmacology*; D003343:Corrosion; D009682:Magnetic Resonance Spectroscopy; D008670:Metals / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D008970:Molecular Weight; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction / Q000187:drug effects; D010316:Particle Size; D011760:Pyrrolidinones / Q000737:chemistry / Q000494:pharmacology*; D017550:Spectroscopy, Fourier Transform Infrared; D020058:Styrene / Q000737:chemistry / Q000494:pharmacology*; D013431:Sulfates / Q000378:metabolism; D013499:Surface Properties; D013818:Thermogravimetry
chemical_list: D000900:Anti-Bacterial Agents; D020099:Coated Materials, Biocompatible; D008670:Metals; D011760:Pyrrolidinones; D013431:Sulfates; D020058:Styrene; C042670:N-vinyl-2-pyrrolidinone
keywords: Biocidal activity; Nanocomposite; Nanometal oxide; SRB; Styrene/vinylpyrrolidone copolymer