Silver nanoparticle protein corona composition compared across engineered particle properties and environmentally relevant reaction conditions

Eigenheer, Richard A.; Castellanos, Erick R.; Nakamoto, Meagan Y.; Gerner, Kyle T.; Lampe, Alyssa M.; Wheeler, Korin E.

doi:10.1039/c4en00002a

Cited by 51 publications

(61 citation statements)

References 51 publications

(96 reference statements)

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“…Silver nanoparticles have many applications in biotechnology [15], medicine [16], catalysis and biochemistry [17]. There are many industrial applications of silver nanoparticles such as microelectronics, cosmetics, adhesives, catalysis and enhanced solar cells [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Mechanistic and kinetic study of the formation of silver nanoparticles by reduction of silver(I) in the presence of surfactants and macromolecules

Ismail

Ewais

2015

Transition Met Chem

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The kinetics of formation of silver nanoparticles by reduction of silver(I) with galactose were studied spectrophotometrically in the presence of surfactants and chitosan as stabilizing agents. The reaction was carried out under pseudo-first-order conditions by using a tenfold excess of [galactose] over [Ag ? ]. The effects of cetyltrimethylammonium bromide (cationic surfactant) and sodium dodecyl sulfate (anionic surfactant) on the reaction rate have been studied. Chitosan inhibits the rate of reaction by up to 70 %. TEM imaging shows that there is no aggregation of silver nanoparticles in the presence of chitosan. The rate of reaction increases with increasing [OH -]. A mechanism for the reaction is proposed, and the rate equation derived from this mechanism was consistent with the experimental behaviors. Thermodynamic activation parameters were calculated.

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Section: Introductionmentioning

confidence: 99%

Mechanistic and kinetic study of the formation of silver nanoparticles by reduction of silver(I) in the presence of surfactants and macromolecules

Ismail

Ewais

2015

Transition Met Chem

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“…This leads to the formation of a protein corona; a layer of adsorbed macromolecules at the surface of nanoparticles [142,143]. This layer is of complex [144] and dynamic nature [145,146], and depends of the composition of the medium as well as the surface properties of the nanoparticles [147][148][149][150]. By modifying the surface of nanoparticles, the corona shell can change the interactions they have with cells as well as physical and chemical properties of the systems [146,[151][152][153].…”

Section: Interaction With a Bacterial Culturementioning

confidence: 99%

Antibacterial activity of silver nanoparticles: A surface science insight

2015

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Summary Silver nanoparticles constitute a very promising approach for the development of new antimicrobial systems. Nanoparticulate objects can bring significant improvements in the antibacterial activity of this element, through specific effect such as an adsorption at bacterial surfaces. However, the mechanism of action is essentially driven by the oxidative dissolution of the nanoparticles, as indicated by recent direct observations. The role of Ag + release in the action mechanism was also indirectly observed in numerous studies, and explains the sensitivity of the antimicrobial activity to the presence of some chemical species, notably halides and sulfides which form insoluble salts with Ag + . As such, surface properties of Ag nanoparticles have a crucial impact on their potency, as they influence both physical (aggregation, affinity for bacterial membrane, etc.) and chemical (dissolution, passivation, etc.) phenomena. Here, we review the main parameters that will affect the surface state of Ag NPs and their influence on antimicrobial efficacy. We also provide an analysis of several works on Ag NPs activity, observed through the scope of an oxidative Ag + release.

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“…Among numerous cases, silver (Ag) nanoparticles are of considerable interest in nanobiotechnology. These nanomaterials attained increasing attention in the past few years due to their unique properties of antibacterial and antimicrobial activities [5][6][7][8][9][10][11][12][13][14][15], and chemical and biological sensing due to their non-toxic nature and biocidal effect [16][17][18][19]. Ag nanoparticles are prepared through various techniques, but chemical reduction of silver salts is one of the most frequent using methods.…”

Section: Introductionmentioning

confidence: 99%

One pot fabrication of optically active and efficient antibacterial poly(amide-benzimidazole-imide)/Ag bionanocomposite

et al. 2015

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Poly(amide-benzimidazole-imide) (PABI) containing silver nanoparticles was fabricated through in situ procedure using DMF as a common solvent which leads to spontaneous slow reduction at ambient temperature. UV/vis technique verified silver nanoparticles formation in the polymer matrix. The silver nanoparticles presence was also confirmed using various characterization techniques and their dispersion was verified by microscopic studies (TEM and FE-SEM analysis) which revealed good dispersion of Ag nanoparticles in PABI matrix without aggregation in nano scales sized. Antibacterial properties of the synthesized polymer and PABI/Ag bionanocomposite (BNC) were evaluated against two Gramnegative bacteria, Escherichia coli and Agrobacterium tumefaciens. Impregnation of silver nanoparticles inside the material caused a growth inhibition ring against both bacteria showing antibacterial effectiveness of the nano-material rather than the basic polymer. In addition, in vitro soil burial and weight loss tests were also performed for evaluation of PABI and PABI/Ag BNC biodegradation behavior. PABI/Ag BNC significantly decreased soil bacterial population but increased fungal population compared to PABI buried. However, weight loss was not significantly different for both compounds when they were exposed to colonization by fungal saprophytes for 3 months. At least in spite of having antibacterial behavior, nanoparticle-impregnated material could be decomposed in natural ecosystems due to fungal biodegradations.

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Silver nanoparticle protein corona composition compared across engineered particle properties and environmentally relevant reaction conditions

Abstract: The protein coronas of silver nanoparticles are profoundly impacted by nanoparticle surface engineering and by environmentally and biologically relevant solution conditions.

Cited by 51 publications

References 51 publications

Mechanistic and kinetic study of the formation of silver nanoparticles by reduction of silver(I) in the presence of surfactants and macromolecules

Mechanistic and kinetic study of the formation of silver nanoparticles by reduction of silver(I) in the presence of surfactants and macromolecules

Antibacterial activity of silver nanoparticles: A surface science insight

One pot fabrication of optically active and efficient antibacterial poly(amide-benzimidazole-imide)/Ag bionanocomposite

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