Health & Environmental Research Online (HERO)


Print Feedback Export to File
1610826 
Journal Article 
ZnO Nanoparticles-Chitosan Composite as Antibacterial Finish for Textiles 
Farouk, A; Moussa, S; Ulbricht, M; Textor, T 
2012 
Yes 
International Journal of Carbohydrate Chemistry
ISSN: 1687-9341 
Hindawi Publishing Corporation, P.O. Box 3079 Cuyahoga Falls OH 44223 United States 
2012 (Jan 2012) 
The antibacterial performance of sol-gel-derived inorganic-organic hybrid polymers filled with ZnO nanoparticles-chitosan against a gram-negative bacterium Escherichia coli and a gram-positive Micrococcus luteus has been investigated. Three different molecular weights (MW) of chitosan (CTS) 1.36 . 10 super(5) , 2.2 . 10 super(5) , and 3.0 . 10 super(5) Da with equal degree of deacetylation (DD, 85%) (coded as S 85-60, He 85-250, and He 85-500) with equal degree of deacetylation (DD, 85%) were examined. ZnO was prepared by the base hydrolysis of zinc acetate in isopropanol using lithium hydroxide (LiOH . H sub(2) O) to hydrolyze the precursor. Sol-gel-based inorganic-organic hybrid polymers were modified with these oxides and were applied to cellulosic cotton (100%) and cotton/polyester (65/35%) fabrics. Inorganic-organic hybrids polymers were based on 3-glycidyloxypropyltrimethoxysilane (GPTMS). Bacteriological tests were performed in nutrient agar media on solid agar plates and in liquid broth systems using ZnO nanoparticles with average particle size of (40 nm). Our study showed the enhanced antibacterial activity of ZnO nanoparticles chitosan (different MW) of against a gram-negative bacterium Escherichia coli DSMZ 498 and a gram-positive Micrococcus luteus ATCC 9341 in repeated experiments. The antibacterial activity of textile treated with ZnO nanoparticles chitosan increases with decreasing the molecular weight of chitosan. 
Antibacterial activity; oxides; Carbohydrates; chitosan; Micrococcus luteus; Nutrients; Hybrids; Molecular weight; Fabrics; Acetic acid; Hydrolysis; Agar; Escherichia coli; Deacetylation; Zinc; nanoparticles; Particle size; Lithium; polyesters; Textiles; Cotton