Study on the interaction between silver nanoparticles and nucleic acids in the presence of cetyltrimethylammonium bromide and its analytical application

Zheng, Jinhua; Wu, Xia; Wang, Minqin; Ran, Dehuan; Xu, Wei; Yang, Jinhe

doi:10.1016/j.talanta.2007.06.014

Cited by 72 publications

(38 citation statements)

References 24 publications

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“…It has been shown that Ag-NPs have different mechanisms for killing bacteria cells. Ag-NPs have the ability to bind strongly to sulfur-and phosphor-containing compounds 34 and, because of this property, they can damage the bacterial cell membrane by impairing sulfur-containing proteins. Ag-NPs can penetrate the bacteria and can damage sulfur-containing enzymes and phosphor-containing DNA.…”

Section: Discussionmentioning

confidence: 99%

Antileishmanial effect of silver nanoparticles and their enhanced antiparasitic activity under ultraviolet light

Allahverdiyev¹,

Abamor²,

Bağırova³

et al. 2011

IJN

186

122

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Leishmaniasis is a protozoan vector-borne disease and is one of the biggest health problems of the world. Antileishmanial drugs have disadvantages such as toxicity and the recent development of resistance. One of the best-known mechanisms of the antibacterial effects of silver nanoparticles (Ag-NPs) is the production of reactive oxygen species to which Leishmania parasites are very sensitive. So far no information about the effects of Ag-NPs on Leishmania tropica parasites, the causative agent of leishmaniasis, exists in the literature. The aim of this study was to investigate the effects of Ag-NPs on biological parameters of L. tropica such as morphology, metabolic activity, proliferation, infectivity, and survival in host cells, in vitro. Consequently, parasite morphology and infectivity were impaired in comparison with the control. Also, enhanced effects of Ag-NPs were demonstrated on the morphology and infectivity of parasites under ultraviolet (UV) light. Ag-NPs demonstrated significant antileishmanial effects by inhibiting the proliferation and metabolic activity of promastigotes by 1.5- to threefold, respectively, in the dark, and 2- to 6.5-fold, respectively, under UV light. Of note, Ag-NPs inhibited the survival of amastigotes in host cells, and this effect was more significant in the presence of UV light. Thus, for the first time the antileishmanial effects of Ag-NPs on L. tropica parasites were demonstrated along with the enhanced antimicrobial activity of Ag-NPs under UV light. Determination of the antileishmanial effects of Ag-NPs is very important for the further development of new compounds containing nanoparticles in leishmaniasis treatment.

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Section: Discussionmentioning

confidence: 99%

Antileishmanial effect of silver nanoparticles and their enhanced antiparasitic activity under ultraviolet light

Allahverdiyev¹,

Abamor²,

Bağırova³

et al. 2011

IJN

186

122

View full text Add to dashboard Cite

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“…Indeed, the intensity of RLS bands can be correlated with the size of the aggregates. [26] RLS has been largely used to study porphyrins [27] and DNA assemblies [28] and more recently to investigate structural properties of aqueous solutions of ILs. [29] In particular, to evaluate the disorganising effect that a cosolvent could induce on the IL structure, we collected RLS spectra of 1 and 2 in methanol at different mole fractions.…”

Section: Nmr Spectroscopy Measurementsmentioning

confidence: 99%

Geminal Ionic Liquids: A Combined Approach to Investigate Their Three‐Dimensional Organisation

D’Anna

Ferrante

Noto

2009

Chemistry A European J

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Different investigations, such as 1D and 2D NMR spectroscopy, resonance light scattering spectroscopy and molecular dynamics simulations, have been jointly used to achieve a deeper understanding of the degree of structural order in two geminal ionic liquids. In particular, 3,3'-di-n-butyl-1,1'-(1,3-phenylenedimethylene)diimidazolium and 3,3'-di-n-butyl-1,1'-(1,4-phenylenedimethylene)diimidazolium bis[bis(trifluoromethanesulfonyl)imide] have been studied. These geminal ionic liquids were chosen because of the presence of both a rigid phenylenedimethylene link between two imidazolium rings, which should give a high degree of order to the solvent system, and the different shapes of the two cations of the isomers, which could induce different properties and packing in the liquid state. Data collected here show that the two geminal ionic liquids are characterised by a different degree of structural order that induces, for example, a different sensitivity of the two solvent systems to temperature changes or to the presence of a co-solvent such as methanol.

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“…A membrane with such morphology exhibits a significant increase in permeability, causing death of the cell [29]. The interaction among nanoAg, CTMAB, and fsDNA through electrostatic and chemical affinity, and the nanoAg-CTMAB complex can induce the structural change of base stacking and helicity of fsDNA [30]. The antibacterial properties of silver nanoparticles arising from the electrostatic interaction between silver with negatively-charged bacteria cell surfaces.…”

Section: Staphylococcus Aureus Atcc 25923mentioning

confidence: 99%

Antibacterial activity and the hydrophobicity of cotton coated with hexadecyltrimethoxysilane

Rohaeti¹,

Rakhmawati²

2017

AIP Conference Proceedings

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Study on the interaction between silver nanoparticles and nucleic acids in the presence of cetyltrimethylammonium bromide and its analytical application

Cited by 72 publications

References 24 publications

Antileishmanial effect of silver nanoparticles and their enhanced antiparasitic activity under ultraviolet light

Antileishmanial effect of silver nanoparticles and their enhanced antiparasitic activity under ultraviolet light

Geminal Ionic Liquids: A Combined Approach to Investigate Their Three‐Dimensional Organisation

Antibacterial activity and the hydrophobicity of cotton coated with hexadecyltrimethoxysilane

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