Antibacterial properties of green-synthesized noble metal nanoparticles

Siegel, Jakub; Kolářová, Kateřina; Vosmanská, V.; Rimpelová, Silvie; Leitner, J.; Švorčı́k, Václav

doi:10.1016/j.matlet.2013.09.047

Cited by 47 publications

(28 citation statements)

References 16 publications

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“…Figure 7 shows the UV-Vis spectra recorded from the Pd and PtNPs immediately after NPs preparation (solid lines) and after 3 months storage at laboratory conditions (dashed lines). It can be seen that apart from a distinct surface plasmon resonance (SPR) characteristic for other noble metal NPs (Au and Ag) [58], no distinctive SPR peaks occur in case of both Pd and PtNPs, which is in accordance with the earlier reports [89,90]. Studied metal NPs exhibit increasing absorption toward shorter wavelengths [89,[91][92][93].…”

Section: Gold Silver Platinum and Palladium Nanoparticles Physicalsupporting

confidence: 88%

“…The control of nanoparticle size through the capturing media temperature may be expressed upon a simple, generally known approach [86], which states that nanoparticle growth is governed by diffusion from the bulk of colloidal dispersion to the solution/particle interphase. When applied this approach, both AgNP 4-6 and AuNP 4-6 (indexes refer to average nanoparticle size) exhibit distinctive narrow peaks with maximum absorption at 400 and 520 nm, respectively (see Figure 3) [58]. These spectra are almost identical to those obtained in our former study on Ag and Au with average diameter of 3-5 nm, indicating stable solutions with minimal particle dispersion.…”

Section: Gold Silver Platinum and Palladium Nanoparticles Physicalsupporting

confidence: 75%

“…This substance combines physical properties comparable to those of ILs (i.e., low vapor pressure, thermally manageable viscosity, high coordination ability -per one glycerol molecule falls three hydroxyl groups) with minimal toxicity to living tissues. Biocompatibility of glycerol allows subsequent application of prepared NPs in bioengineering [58]. Additionally, one can easily control the size of emerging particles by the temperature of the capturing media (glycerol).…”

Section: Nanoparticle Synthesismentioning

confidence: 99%

“…UV-Vis absorption spectra of Ag (AgNP 4-6 ) and Au (AuNP 4-6 , AuNP 9-12 ) aqueous solutions of different nanoparticle size together with the photographs of corresponding NP solutions (indexes refer to average NP diameter in nm)[58].…”

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confidence: 99%

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Noble Metal Nanoparticles Prepared by Metal Sputtering into Glycerol and their Grafting to Polymer Surface

Siegel¹,

Řezníčková²,

Slepička³

et al. 2015

Nanoparticles Technology

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This chapter summarizes the basic information about elementary characteristics and technology of preparation of noble metal nanoparticles. The introduction gives some basic information on the history of development in this area, especially in terms of dimensionality of metal nanostructures and their possible applications.The first subsection is devoted to the preparation and characterization of "u, "g, Pt, and Pd nanoparticles NPs , which were synthesized by direct metal sputtering in liquid propane-, , ,-triole glycerol . This method provides an interesting alternative to time-consuming, wetbased chemical synthesis techniques. Moreover, the suggested technique allows targeted variation of metal nanoparticle size, which is demonstrated in detail in case of "uNPs by variation of capturing media temperature. Nanoparticle size and shape were studied by transmission electron microscopy and dynamic light scattering. Optical properties of nanoparticle solution were determined by measuring its UV-Vis spectra. Concentration of metal nanoparticles in prepared solutions was determined by atomic absorption spectroscopy. "ntibacterial properties were tested against two common pollutants Escherichia coli, a Gram-negative bacteria, and Staphylococcus epidermidis, a Gram-positive bacteria . In the presence of "g nanoparticles, the growth of E. coli and S. epidermidis was completely inhibited after h. "ny growth inhibition of E. coli was observed neither in the presence of smaller -nm, "uNP -nor bigger -nm, "uNP -"uNPs during the whole examination period. "uNP -, but not "uNP -, was able to inhibit the growth of. S epidermidis. We also observed significant difference in biological activities of Pt and PdNPs. More specifically, PdNPs exhibited considerable inhibitory potential against both E. coli and S. epidermidis, which was in contrast to ineffective PtNPs. Our results indicate that "g, Pd, and partially "uNPs have high potential to combat both Gram-positive and Gram-negative bacterial strains.The second subsection describes the effort to anchor metal nanoparticles onto polyethyleneterephthalate PET carrier. Two different procedures of grafting of polymeric carrier, activated by plasma treatment, with "u and "gNPs are described. In the first procedure, the PET foil was grafted with biphenyl-, -dithiol "PD and subsequently with "u and "gNPs. In the second one, the PET foil was grafted with "u and "gNPs previously coated by the same "PD. X-ray photoelectron spectrosco-© 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.py, Fourier transform infrared spectroscopy, and electrokinetic analysis were used for characterization of the polymer surface at different modification steps. "u and "gNPs were characterized by UV-Vis spectroscopy. In case of both types of nanoparticles, the first ...

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Section: Gold Silver Platinum and Palladium Nanoparticles Physicalsupporting

confidence: 88%

Section: Gold Silver Platinum and Palladium Nanoparticles Physicalsupporting

confidence: 75%

Section: Nanoparticle Synthesismentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Noble Metal Nanoparticles Prepared by Metal Sputtering into Glycerol and their Grafting to Polymer Surface

Siegel¹,

Řezníčková²,

Slepička³

et al. 2015

Nanoparticles Technology

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“…The growth inhibition of both bacteria species was more obvious for the slides containing AuNPs constructed by MSPT. However, Ag nanoparticles have been known to be potent antibacterial agents, but the antibacterial activity of NPs is strongly dependent on particle size, shape, roughness, and the dispersion . The higher efficiency of AuNPs films can also be related to effective immobilization of AuNPs on glass slide according to chemical modification of glass surface using MSPT, as confirmed by EDX results.…”

Section: Resultsmentioning

confidence: 69%

Preparation and characterization of nanostructured thin films of Au and Ag nanoparticles synthesized by ascorbic acid on modified glass surface

Rastegarzadeh

Azarkish

Abdali

2015

Surf. Interface Anal.

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a Immobilization of Ag and Au nanoparticles (NPs) synthesized by ascorbic acid on chemically modified glass surface has been studied. 3-[2-(2-Aminoethylamino)ethylamino]propyl-trimethoxysilane (AMPTS), N-(2-aminoethyl)-3-aminopropyltrimethoxysilan, and 3-trimethoxysilyl-1-propanethiol (MSPT) were used as surface modifying agents. To improve immobilization efficiency, the ammonia solution has been used along with the silane reagents, which assisted to adsorb the metal NPs on glass surface. It was found that AMPTS and MSPT have considerable effect on deposition of Ag and AuNPs on glass substrate. The fabricated thin films were characterized by using UV-Vis spectroscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy and subjected to antimicrobial resistance test. The UV-Vis spectra show a distinctive plasmon resonance absorbance peak for thin films of Au and AgNPs prepared with MSPT and AMPTS, respectively. Atomic force microscopy images indicate that formation of Au and AgNPs with spherical morphology after immobilization on the glass substrate and also the dimensions of NPs on the surface appear larger than those observed in the parent colloidal solution. Energy-dispersive X-ray spectroscopy measurements confirmed the presence of silver and gold on the modified glass surface, and elemental composition was measured. The Au and AgNPs thin films show antibacterial activity against gram negative (Escherichia coli) and gram positive (Staphylococcus aureus) bacteria in comparison with a blank sample.

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Microwave‐assisted rapid fabrication of antibacterial polyacrylonitrile microfibers/nanofibers via nitrile click chemistry and electrospinning

Wang

Liu

et al. 2017

J of Applied Polymer Sci

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Postmodified polyacrylonitrile (PAN) microfibers/nanofibers with durable antibacterial performance was fabricated by a rapid and green method of microwave irradiation and electrospinning technologies. The fibers were endowed with antibacterial activity because of silver ions, which were embedded into PAN by nitrile click chemistry with microwave irradiation; they were then electrospun into neat and smooth microfibers/nanofibers. The obtained microfibers/nanofibers were tested against Staphylococcus aureus and exhibited powerful and long‐lasting antibacterial properties. The production of endurable antibacterial materials could effectively prevent the spread of microbes and beautify the living environment. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45490.

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Antibacterial properties of green-synthesized noble metal nanoparticles

Cited by 47 publications

References 16 publications

Noble Metal Nanoparticles Prepared by Metal Sputtering into Glycerol and their Grafting to Polymer Surface

Noble Metal Nanoparticles Prepared by Metal Sputtering into Glycerol and their Grafting to Polymer Surface

Preparation and characterization of nanostructured thin films of Au and Ag nanoparticles synthesized by ascorbic acid on modified glass surface

Microwave‐assisted rapid fabrication of antibacterial polyacrylonitrile microfibers/nanofibers via nitrile click chemistry and electrospinning

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