Nanostructured copper oxide-cotton fibers: synthesis, characterization, and applications

Abstract

Copper oxide nanoparticles were prepared and subsequently deposited onto surface of the cotton fibers by ultrasonic irradiation. The structure and morphology of the coated and un-coated cottons were examined by X-ray diffraction and scanning electron microscopy/energy dispersive X-ray analysis. These methods revealed that of CuO nanoparticles are crystalline and corresponds to monoclinic phase, and that these nanoparticles are physically adsorbed onto the cotton fiber surface. They have an average crystallite size of 10 nm; the physical and chemical properties of the treated cotton fibers are markedly different from those of the untreated cotton fibers. The CuOcotton fiber nanocomposites were tested against Escherichia coli (Gram negative) and Staphylococcus aureus (Gram positive) cultures and showed a significant antimicrobial activity; whereas its analogous CuS-coated cotton material formed by the reaction CuO-coated cotton fibers with H 2 S showed no activity.

Facile synthesis of Zn doped CuO hierarchical nanostructures: Structural, optical and antibacterial properties

“…[9][10][11][12] Moreover, CuO nanomaterials mixed with various types of fabrics have also been previously reported to have significant antibacterial activity. [13][14][15] These nanomaterials based fabrics have been proposed to be used for application in medical garments. 14,15 It has been reported that physio-chemical behavior of CuO nanomaterials can be tailored via doping.…”

“…[13][14][15] These nanomaterials based fabrics have been proposed to be used for application in medical garments. 14,15 It has been reported that physio-chemical behavior of CuO nanomaterials can be tailored via doping. 16 Recently, various dopants have been used for achieving enhanced 18 There are very few reports on the bactericidal potency of Zn doped CuO nanomaterials.…”

Methods of Synthesis, Properties and Biomedical Applications of CuO Nanoparticles

“…Both were inoculated with E. coli and S. aureus in order to compare the antimicrobial effect of the two coating systems in a Gram negative and Gram positive model, respectively. The results showed that the sample with CuO NPs presented higher antibacterial activity than the sample coated with CuS nanoparticles which showed no reduction in the viability of tested bacteria [50]. Devi et al studied the antimicrobial activity of bulk, as-prepared and annealed CuO NPs against E. coli , Proteus mirabilis , Klebsiella spp., and their effect was comparable with the antimicrobial activity of gentamycin on these strains [9,51].…”

Biotesting chronic toxicity of waters of surface sources of water service and drinking water on fishes Danio rerio

“…The assessment of water quality in surface water sources and drinking water using physical and chemical analysis does not provide complete information on the complex impact of pollutants on aquatic ecosystems. Therefore, the use of biological methods to determine the toxicity of these waters is particularly relevant [1,2]. Moreover, the toxicity of drinking water surface waters should be evaluated not only for humans, but also for fish populations and other aquatic organisms [3][4][5][6][7][8], especially for those who are actively involved in the processes of water quality formation.…”