Antibacterial and antifungal activity of a soda-lime glass containing copper nanoparticles

Esteban-Tejeda, Leticia; Malpartida, Francisco; Esteban‐Cubillo, Antonio; Pecharromán, Carlos; Moya, José S.

doi:10.1088/0957-4484/20/50/505701

Cited by 136 publications

(63 citation statements)

References 28 publications

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“…Mohan et al (2011) have reported that the Ag NP-grafted carbon nanotubes and Cu-grafted carbon nanotubes may be used as effective antimicrobial materials that find applications in biomedical devices and antibacterial controlling system. A low melting point soda-lime glass powder containing Cu NPs with high antibacterial (against Gram-positive and Gram-negative bacteria) and antifungal activity have been reported by Esteban-Tejeda et al (2009). Ruparelia et al (2008) reported that the copper nanoparticles a good negative correlation was observed between the inhibition zone observed in disk diffusion test and MIC/MBC determined based on liquid cultures against E. coli (four strains), Bacillus subtilis, and S. aureus (three strains).…”

Section: Introductionmentioning

confidence: 95%

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Ramyadevi¹,

Jeyasubramanian²,

Marikani³

et al. 2011

Parasitol Res

109

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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: Introductionmentioning

confidence: 95%

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Ramyadevi¹,

Jeyasubramanian²,

Marikani³

et al. 2011

Parasitol Res

109

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“…It was found that silver nanoparticles caused detrimental effect not only on fungal hyphae but also on conidial germination. Copper nanoparticles in soda lime glass powder showed efficient antimicrobial activity against gram-positive, gram-negative bacteria and fungi (Esteban-Tejeda et al 2009). According to Jo et al (2009), silver nanoparticles were effective against plant pathogenic fungi like B. sorokiniana and M. grisea.…”

Section: Precision Farmingmentioning

confidence: 99%

Role of nanotechnology in agriculture with special reference to management of insect pests

Rai

Ingle

2012

Appl Microbiol Biotechnol

571

197

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Nanotechnology is a promising field of interdisciplinary research. It opens up a wide array of opportunities in various fields like medicine, pharmaceuticals, electronics and agriculture. The potential uses and benefits of nanotechnology are enormous. These include insect pests management through the formulations of nanomaterials-based pesticides and insecticides, enhancement of agricultural productivity using bio-conjugated nanoparticles (encapsulation) for slow release of nutrients and water, nanoparticle-mediated gene or DNA transfer in plants for the development of insect pest-resistant varieties and use of nanomaterials for preparation of different kind of biosensors, which would be useful in remote sensing devices required for precision farming. Traditional strategies like integrated pest management used in agriculture are insufficient, and application of chemical pesticides like DDT have adverse effects on animals and human beings apart from the decline in soil fertility. Therefore, nanotechnology would provide green and efficient alternatives for the management of insect pests in agriculture without harming the nature. This review is focused on traditional strategies used for the management of insect pests, limitations of use of chemical pesticides and potential of nanomaterials in insect pest management as modern approaches of nanotechnology.

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“…Highly active antimicrobial copper nanocomposite glasses [ 18 ] and other inorganic supporting matrices such as sepiolite [ 19 ] and hydroxyapitite [ 20 ] have been previously reported. Incorporation of such nanocomposites into surfaces aimed at reducing hospital-acquired infections may be the future of the health care industry.…”

Section: Fabrication Of Antimicrobial Nanoparticle Coatings On Naturamentioning

confidence: 99%

Copper‐Based Nanostructured Coatings on Natural Cellulose: Nanocomposites Exhibiting Rapid and Efficient Inhibition of a Multi‐Drug Resistant Wound Pathogen, A. baumannii, and Mammalian Cell Biocompatibility In Vitro

Cady¹,

Behnke²,

Strickland³

2011

Adv Funct Materials

196

124

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This paper describes a layer‐by‐layer (LBL) electrostatic self‐assembly process for fabricating highly efficient antimicrobial nanocoatings on a natural cellulose substrate. The composite materials comprise a chemically modified cotton substrate and a layer of sub‐5 nm copper‐based nanoparticles. The LBL process involves a chemical preconditioning step to impart high negative surface charge on the cotton substrate for chelation controlled binding of cupric ions (Cu2+), followed by chemical reduction to yield nanostructured coatings on cotton fibers. These model wound dressings exhibit rapid and efficient killing of a multidrug resistant bacterial wound pathogen, A. baumannii, where an 8‐log reduction in bacterial growth can be achieved in as little as 10 min of contact. Comparative silver‐based nanocoated wound dressings–a more conventional antimicrobial composite material–exhibit much lower antimicrobial efficiencies; a 5‐log reduction in A. baumannii growth is possible after 24 h exposure times to silver nanoparticle‐coated cotton substrates. The copper nanoparticle–cotton composites described herein also resist leaching of copper species in the presence of buffer, and exhibit an order of magnitude higher killing efficiency using 20 times less total metal when compared to tests using soluble Cu2+. Together these data suggest that copper‐based nanoparticle‐coated cotton materials have facile antimicrobial properties in the presence of A. baumannii through a process that may be associated with contact killing, and not simply due to enhanced release of metal ion. The biocompatibility of these copper‐cotton composites toward embryonic fibroblast stem cells in vitro suggests their potential as a new paradigm in metal‐based wound care and combating pathogenic bacterial infections.

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Antibacterial and antifungal activity of a soda-lime glass containing copper nanoparticles

Cited by 136 publications

References 28 publications

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Copper nanoparticles synthesized by polyol process used to control hematophagous parasites

Role of nanotechnology in agriculture with special reference to management of insect pests

Copper‐Based Nanostructured Coatings on Natural Cellulose: Nanocomposites Exhibiting Rapid and Efficient Inhibition of a Multi‐Drug Resistant Wound Pathogen, A. baumannii, and Mammalian Cell Biocompatibility In Vitro

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