Physicochemical and antibacterial characterization of ionocity Ag/Cu powder nanoparticles

Nowak, A.; Szade, J.; Talik, E.; Zubko, Maciej; Wasilkowski, Daniel; Dulski, Mateusz; Balin, Katarzyna; Mrozik, Agnieszka; Peszke, J.

doi:10.1016/j.matchar.2016.04.013

Cited by 29 publications

(16 citation statements)

References 42 publications

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“…The reference RS data for pure SiO 2 system is presented in Fig. 7A (reference spectra of pure Ag and Cu NPs) were previously reported by Nowak et al 33 The data for pure silica showed presence of peaks assigned to: the rotational modes of the silica structural units (235, 308 cm À1 ) and vibrational active modes within silica skeleton to bands at 391 cm À1 (u 1 ), 478 cm À1 (D1), 606 cm À1 (D2), 804 cm À1 (u 3 ) and 1055 cm À1 (u 4 ) (see Fig. 7A and Table 4).…”

Section: Physicochemical Characterizationmentioning

confidence: 88%

“…30 Moreover, such composites are characterized by slowly discharge of metallic ions from the silica matrix in a long period of time. 29 It is worth to mention, that in many cases the effectiveness of those nanocomposites depends strongly on their manufacturing techniques; like chemical reactions, [31][32][33][34][35] solgel 36 or sputtering deposition. 14 In this paper, we report a chemical synthesis of copper-and silver-silica dioxide nanocomposites (NCs) in the form of nanopowders.…”

Section: Introductionmentioning

confidence: 99%

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Unique properties of silver and copper silica-based nanocomposites as antimicrobial agents

et al. 2017

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Section: Physicochemical Characterizationmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Unique properties of silver and copper silica-based nanocomposites as antimicrobial agents

et al. 2017

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“…In the last decade, studies related to synthesis and application of Cu NPs has been of great interest from the academic and industrial point of view, due to its large potential for the replacement of expensive metals like silver and gold nanoparticles in the production of antibacterial and conductive materials [1,2]. Research regarding the use of Cu-based materials continues to grow in many diverse fields, for example, in 2018, its use in membranes for water purification [3], agriculture [4,5], electronics [6,7], catalysis [8][9][10][11], and so on, was reported.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of Copper Nanoparticles Protected with Different Coatings and Stored under Ambient Conditions

Jardón-Maximino¹,

Pérez-Álvarez

Sierra-Ávila³

et al. 2018

Journal of Nanomaterials

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The synthesis of copper nanoparticles (Cu NPs) stable to chemical oxidation has attracted much attention due to their novel application possibilities. The physicochemical properties of Cu NPs define their utilization in diverse fields, including biological applications, solar cells, high conductivity inks for printed electronics, and other specific applications. In this study we present the synthesis of oxide-free Cu NPs by wet chemistry routes and their chemical oxidation during the storage exposed to ambient conditions. The Cu NPs synthesized in PAAm and AAm/glycerol presence exhibit no oxidation during synthesis and atmospheric conditions storage for 60 and 37 months, respectively. The obtained results compared with those coming from oxidation of partially passivated commercial Cu NPs at 99.8% purity, are presented. The role of the Cu NPs coating is critical to avoid oxidation, and it can be an important feature to achieve good dispersion in different polymers. The Cu NPs oxidation was studied by XRD, TGA, TEM, FTIR, and HR-TEM.

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“…The suspension was mixed using a magnetic stirrer and then filtered through a polyethylene filter. The precipitate was washed with distilled water and ethanol, and dried at room temperature resulting in the formation of nanopowder [3].…”

Section: Synthesis Of Sio 2 Nanomaterialsmentioning

confidence: 99%

“…Antibacterial activity of nSiO 2 and nCu/SiO 2 was studied against two bacteria species E. coli (ATTC  25922  ) and B. subtilis (ATTC  6633  ) using a traditional plate method [3]. For this purpose, bacteria were grown in a Luria-Bertani medium (LB) for 3-4 h (37C, 130 rpm) to reach the mid-exponential growth phase.…”

Section: Potential Toxicity Of Nanomaterialsmentioning

confidence: 99%

Synthesis and Biological Activity of Engineered SiO2 Nanomaterials

Metryka¹,

Wasilkowski²,

Nowak³

et al. 2020

Proceedings of the 6th World Congress on New Technologies

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The multidisciplinary use of nanomaterials in everyday products has led to their release into the environment, where they can pose a threat to living organisms, including microorganisms. Currently, the level of new nanomaterials exceeds the set of available information about their potential toxicity. Therefore, it is of the greatest importance and challenge for future research to carry out nanotoxicological studies in order to expand the knowledge about their biological activity. The aim of this study was to evaluate the potential toxic effect of newly synthesized nSiO 2 nanoparticles and the nCu/SiO 2 nanocomposite against selected microorganisms. For this purpose, traditional toxicological methods using reference bacteria Escherichia coli and Bacillus subtilis as well as Microbial Assay for Risk Assessment (MARA) were performed. The study showed that nSiO 2 had a greater antibacterial impact on reference strains than nCu/SiO 2. In addition to this, B. subtilis was more sensitive to nanomaterials than E. coli. Ecotoxicological MARA test showed that the tested nanomaterials exhibited low antibacterial activity and none of them had antifungal activity. SEM imaging indicated that both nanomaterials formed irregularly shaped agglomerates.

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Physicochemical and antibacterial characterization of ionocity Ag/Cu powder nanoparticles

Cited by 29 publications

References 42 publications

Unique properties of silver and copper silica-based nanocomposites as antimicrobial agents

Unique properties of silver and copper silica-based nanocomposites as antimicrobial agents

Oxidation of Copper Nanoparticles Protected with Different Coatings and Stored under Ambient Conditions

Synthesis and Biological Activity of Engineered SiO2 Nanomaterials

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