Copper (II) ions and copper nanoparticles‐loaded chemically modified cotton cellulose fibers with fair antibacterial properties

Mary, Grace; Bajpai, Sunil; Chand, Navin

doi:10.1002/app.29890

Cited by 119 publications

(61 citation statements)

References 40 publications

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“…Copper nanoparticles synthesized by other methods were reported to display an SP band at 570 nm (Kim et al 2006;Salzemann et al 2004). In UV-vis, a strong characteristic absorption peak around 567 nm is noted for the copper nanoparticles in nanocopper-loaded chitosan-attached cellulose fibers because of the surface plasmon resonance effect (Mary et al 2009). The XRD indicated the presence of Cu 2 O when polymer is used as matrix, but the formation of oxide can be avoided if the carboxylic acids are used as surfactants during the preparation (Khanna et al 2007).…”

Section: Discussionmentioning

confidence: 98%

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Ramyadevi¹,

Jeyasubramanian²,

Marikani³

et al. 2011

Parasitol Res

113

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The present study was based on assessments of the anti-parasitic activities of the hematophagous (blood feeding) larvae of malaria vector, Anopheles subpictus Grassi, filariasis vector, Culex quinquefasciatus, Say (Diptera: Culicidae), and the larvae of cattle tick Rhipicephalus (Boophilus) microplus, Canestrini (Acari: Ixodidae). The metallic copper nanoparticles (Cu NPs) synthesized by polyol process from copper acetate as precursor and Tween 80 were used as both the medium and the stabilizing reagent. The efficacy of synthesized Cu NPs was tested against the larvae of blood-sucking parasites. UV-vis spectra characterization was performed, and peak was observed at 575 nm, which is the characteristic to the surface plasmon bond of Cu NPs. The strong surface plasmon absorption band observed at 575 nm may be due to the formation of non-oxidized Cu NPs. X-ray diffraction (XRD) spectral data showed concentric rings corresponding to the 26.79 (111), 34.52 (200), and 70.40 (220) reflections. XRD spectrum of the copper nanoparticles exhibited 2θ values corresponding to the copper nanocrystal. No peaks of impurities are observed in XRD data. The scanning electron micrograph (SEM) showed structures of irregular polygonal, cylindrical shape, and the size range was found to be 35-80 nm. The size of the Cu NPs was measured by atomic force microscope (AFM) in non-contact mode. For imaging by AFM, the sample was suspended in acetone and spins coated on a silicon wafer. The line profile image was drawn by the XEI software and the horizontal line at 6 μm on a 2D AFM image. Research has demonstrated that metallic nanoparticles produce toxicity in aquatic organisms that is due largely to effects of particulates as opposed to release of dissolved ions. Copper acetate solution tested against the parasite larvae exposed to varying concentrations and the larval mortality was observed for 24 h. The larval percent mortality observed in synthesized Cu NPs were 36, 49, 75, 93,100; 32, 53, 63, 73, and 100 and 36, 47, 69, 88, 100 at 0.5, 1.0, 2.0, 4.0, and 8.0 mg/L against A. subpictus, C. quinquefasciatus and R. microplus, respectively. The larval percent mortality shown in copper acetate solution were 16, 45, 57, 66 and 100, 37, 58, 83, 87, and 100 and 41, 59, 79, 100, and 100 at 10, 20, 30, 40, and 50 mg/L against A. subpictus, C. quinquefasciatus, and R. microplus, respectively. The maximum efficacy was observed in Cu NPs and copper acetate solution against the larvae of A. subpictus, C. quinquefasciatus, and R. microplus with LC(50) and r (2) values of 0.95 and 23.47, 1.01 and 15.24, and 1.06 and 14.14 mg/L with r (2) = 0.766; 0.957 and 0.908; 0.946; and 0.816 and 0.945, respectively. The control (distilled water) showed nil mortality in the concurrent assay. The chi-square value was significant at p ≤ 0.05 level. This is the first report on anti-parasitic activity of the synthesized Cu NPs and copper acetate solution.

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Section: Discussionmentioning

confidence: 98%

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Ramyadevi¹,

Jeyasubramanian²,

Marikani³

et al. 2011

Parasitol Res

113

View full text Add to dashboard Cite

show abstract

“…However, few reports are available on the green synthesis of copper nanoparticles (CuNPs) and on the preparation of CuNPs-based BNC films (Cardenas, Díaz, Meléndrez, Cruzat, & García, 2009;Mary, Bajpai, & Chand, 2009). In the present study, the CuNPs were synthesized using three different copper salts (copper acetate, copper chloride, and copper sulfate) and two different types of reducing agents (sodium hydroxide and ascorbic acid) to obtain various types of CuNPs with different shape and size.…”

Section: Introductionmentioning

confidence: 99%

Properties and characterization of agar/CuNP bionanocomposite films prepared with different copper salts and reducing agents

Shankar

Teng

Rhim

2014

Carbohydrate Polymers

156

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“…This intrinsic distinction causes that the copper nanoparticles could hardly be coated on the polymer surface to form composites with structural integrity [12]. The most common process of conferring the copper nanoparticles to fabrics materials is utilizing some adhesion and cross-linked agents, such as acrylate and polyurethane, to form a composite coating on the substrate [13,14]. Consequently, only the exposed copper nanoparticles on the external surface can be released and show antibacterial property subsequently; meanwhile the majority of nanoparticles are blocked in the inner of composites by adhesion agents [15,16].…”

Section: Introductionmentioning

confidence: 99%

Durable and Washable Antibacterial Copper Nanoparticles Bridged by Surface Grafting Polymer Brushes on Cotton and Polymeric Materials

Sun

et al. 2018

Journal of Nanomaterials

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To increase the durability of antibacterial coating on cotton and polymeric substrates, surface initiated grafting polymer brushes are introduced onto the substrates surface to bridge copper nanoparticles coatings and substrate. The morphologies of the composites consisting of the copper nanoparticles and polymer brushes were characterized with scanning electron microscopy (SEM). It was found that copper nanoparticles were uniformly and firmly distributed on the surfaces of the substrates by the polymer brushes; meanwhile, the reinforced concrete-like structures were formed in the composite materials. The substrates coated by the copper nanoparticles showed the efficient antibacterial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) even after washing by 30 cycles. The copper nanoparticles were tethered on the substrates by the strong chemical bonds, which led to the excellent washable fitness and durability. The change of the phase structure of the copper was analyzed to investigate the release mechanism of copper ions.

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Copper (II) ions and copper nanoparticles‐loaded chemically modified cotton cellulose fibers with fair antibacterial properties

Cited by 119 publications

References 40 publications

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Properties and characterization of agar/CuNP bionanocomposite films prepared with different copper salts and reducing agents

Durable and Washable Antibacterial Copper Nanoparticles Bridged by Surface Grafting Polymer Brushes on Cotton and Polymeric Materials

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