Journal ArticleDOI
Behavior of Ag nanoparticles in soil: Effects of particle surface coating, aging and sewage sludge amendment
Annie R. Whitley,Clément Levard,Clément Levard,Emily Oostveen,Emily Oostveen,Paul M. Bertsch,Paul M. Bertsch,Chris Matocha,Frank von der Kammer,Jason M. Unrine,Jason M. Unrine +10 more
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TLDR
It is suggested that Ag MNP coating does not need to be taken into account to understand fate of AgMNPs applied to soil through biosolids amendment, because pre-incubation with sewage sludge negated these effects.About:
This article is published in Environmental Pollution.The article was published on 2013-11-01. It has received 131 citations till now. The article focuses on the topics: Sludge & Biosolids.read more
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The toxicity of silver to soil organisms exposed to silver nanoparticles and silver nitrate in biosolids-amended field soil
Alexander H. Jesmer,Jessica R. Velicogna,Dina M. Schwertfeger,Richard P. Scroggins,Juliska Princz +4 more
TL;DR: Analytical methods that target biologically relevant fractions can be used to advance the understanding of AgNP behavior and toxicity in terrestrial environments and reveal intrinsic differences in the behavior and bioavailability of the 2 different forms of Ag within the biosolids-soils pathway.
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Transformations that affect fate, form and bioavailability of inorganic nanoparticles in aquatic sediments
TL;DR: In this article, a review of the current state of research on transformations of metal-based ENM in the aquatic environment, and the implications of these transformations for the fate and persistence of ENMs and their bioavailability to organisms within the benthos is presented.
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Sewage sludge treated with metal nanomaterials inhibits earthworm reproduction more strongly than sludge treated with metal metals in bulk/salt forms
Elma Lahive,Marianne Matzke,Mark Durenkamp,Alan J. Lawlor,S.A. Thacker,M. G. Pereira,David J. Spurgeon,Jason M. Unrine,Claus Svendsen,Stephen Lofts +9 more
TL;DR: In this paper, earthworms were exposed to soils amended with sewage sludges from a wastewater treatment plant (WWTP) treated with nanomaterials (ENMs) or metal/ionic salts.
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Stability of single dispersed silver nanoparticles in natural and synthetic freshwaters: Effects of dissolved oxygen.
TL;DR: It is suggested that some AgNPs will be more stable for long periods in oxygen-deprived freshwaters, and pose more serious environmental risks than that in oxygenated freshwaters.
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Extraction and characterization methods for titanium dioxide nanoparticles from commercialized sunscreens
Allan Philippe,Juraj Košík,Alexander Welle,Jean-Michel Guigner,Oliver Clemens,Gabriele E. Schaumann +5 more
TL;DR: In this paper, the authors proposed two methods based on ultrafiltration and ultracentrifugation, respectively, for extracting TiO2 nanoparticles from sunscreens using a surfactant solution as the solvent.
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A study of the nucleation and growth processes in the synthesis of colloidal gold
TL;DR: In this paper, a preliminary survey with the electron microscope of various preparations of colloidal gold, a study was made of the process of nucleation and growth in gold colloids, and it was shown that nucleating agents may be identified with reducing agents which form a mixed polymer with chlorauric ion before the reduction to the nucleus takes place.
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Analysis of Macromolecular Polydispersity in Intensity Correlation Spectroscopy: The Method of Cumulants
TL;DR: The first order electric field correlation function of laser light scattered by polydisperse solutions of macromolecules can be written as a sum or distribution of exponentials, with decay rates proportional to the diffusion coefficients of the solute molecules as discussed by the authors.
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Modeled Environmental Concentrations of Engineered Nanomaterials (TiO2, ZnO, Ag, CNT, Fullerenes) for Different Regions
TL;DR: The results of this study indicate that risks to aquatic organisms may currently emanate from nano- Ag, nano-TiO(2), and nano-ZnO in sewage treatment effluents for all considered regions and for nano-Ag in surface waters.
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Nanoparticle Silver Released into Water from Commercially Available Sock Fabrics
Troy M. Benn,Paul Westerhoff +1 more
TL;DR: Variable leaching rates among sock types suggests that the sock manufacturing process may control the release of silver, and physical separation and ion selective electrode (ISE) analyses suggest that both colloidal and ionic silver leach from the socks.