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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Understanding the fate and biological effects of Ag- and TiO2-nanoparticles in the environment: The quest for advanced analytics and interdisciplinary concepts
Gabriele E. Schaumann,Allan Philippe,Mirco Bundschuh,Mirco Bundschuh,George Metreveli,Sondra Klitzke,Sondra Klitzke,Denis Rakcheev,Alexandra Grün,Samuel K. Kumahor,Melanie Kühn,Thomas Baumann,Friederike Lang,Werner Manz,Ralf Schulz,Hans-Jörg Vogel,Hans-Jörg Vogel +16 more
TL;DR: This review critically evaluates existing knowledge on colloidal aging mechanisms, biological functioning and transport of Ag NP and TiO2 NP in water and soil and it discusses challenges for concepts, experimental approaches and analytical methods in order to obtain a comprehensive understanding of the processes linking NP fate and effects.
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Fate of Ag-NPs in Sewage Sludge after Application on Agricultural Soils.
Ana Elena Pradas del Real,Hiram Castillo-Michel,Ralf Kaegi,Brian Sinnet,Valérie Magnin,Nathaniel Findling,Julie Villanova,Marie Carrière,Catherine Santaella,Alejandro Fernandez-Martinez,Clément Levard,Géraldine Sarret +11 more
TL;DR: Investigation of silver nanoparticles in a sludge-amended soil cultivated with monocot and dicot crop species shows that Ag was preferentially associated with S-rich particles, including organic fragments, of the sludge and amended soils, and Nano-XRF evidenced the presence of mixed metallic sulfides.
Environmental Transformations of Silver Nanoparticles: Impact on Stability and Toxicity
Clément Levard,Clément Levard,E. Matt Hotze,E. Matt Hotze,Gregory V. Lowry,Gregory V. Lowry,Gordon E. Brown,Gordon E. Brown,Gordon E. Brown +8 more
TL;DR: This review discusses the major transformation processes of Ag-NPs in various aqueous environments, particularly transformations of the metallic Ag cores caused by reactions with (in)organic ligands, and the effects of such transformations on physical and chemical stability and toxicity.
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Fate and Transformation of CuO Nanoparticles in the Soil–Rice System during the Life Cycle of Rice Plants
TL;DR: CuO NPs were found to be translocated from soil to plant especially to the chaff and promoted the Cu accumulation in the aleurone layer of rice using micro X-ray fluorescence technique, but could not reach the polished rice.
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Impact of sulfidation on the bioavailability and toxicity of silver nanoparticles to Caenorhabditis elegans
Daniel L. Starnes,Jason M. Unrine,Jason M. Unrine,Catherine P. Starnes,Blanche Collin,Blanche Collin,Emily K. Oostveen,Rui Ma,Rui Ma,Gregory V. Lowry,Gregory V. Lowry,Paul M. Bertsch,Paul M. Bertsch,Paul M. Bertsch,Olga V. Tsyusko,Olga V. Tsyusko +15 more
TL;DR: Sulfidation is a major transformation product for manufactured silver nanoparticles (Ag-MNPs) in the wastewater treatment process and it is demonstrated that sulfidation not only decreases solubility of Ag-M NP, but also reduces the bioavailability of intact sAg-MNP.
References
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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.