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Article

Morphological Transformation of Silver Nanoparticles from Commercial Products: Modeling from Product Incorporation, Weathering through Use Scenarios, and Leaching into Wastewater

1
Department of Chemistry, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada
2
Environment and Climate Change Canada, 335 River Road South, Ottawa, ON K1V 1C7, Canada
3
Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(9), 1258; https://doi.org/10.3390/nano9091258
Received: 19 July 2019 / Revised: 20 August 2019 / Accepted: 25 August 2019 / Published: 5 September 2019
(This article belongs to the Special Issue Environmental Decision Analysis for Nanoparticles)
There is increasing interest in the environmental fate and effects of engineered nanomaterials due to their ubiquitous use in consumer products. In particular, given the mounting evidence that dramatic transformations can occur to a nanomaterial throughout its product lifecycle, the appropriateness of using pristine nanomaterials in environmental testing is being questioned. Using a combination of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma-mass spectrometry (ICP-MS), this work examines the morphological and compositional effects of conditions mimicking a typical lifecycle of a nano-enabled product, from the production of the silver nanoparticle (AgNP)-laden textiles, through its use, laundering, and then finally, its leaching and incubation in the wastewater collection system. These simulated weathering conditions showed evidence for the transformation of AgNPs into AgCl and Ag2S. Incubation in raw wastewater had the most dramatic effect on the AgNPs in terms of transformation, no matter what initial weathering was applied to the NPs prior to incubation. However, despite extensive transformation noted, AgNPs were still present within all the samples after the use scenarios. View Full-Text
Keywords: nanoparticle; Silver (Ag); life cycle; TEM; EDS; ICP-MS; XPS nanoparticle; Silver (Ag); life cycle; TEM; EDS; ICP-MS; XPS
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MDPI and ACS Style

Mohan, S.; Princz, J.; Ormeci, B.; DeRosa, M.C. Morphological Transformation of Silver Nanoparticles from Commercial Products: Modeling from Product Incorporation, Weathering through Use Scenarios, and Leaching into Wastewater. Nanomaterials 2019, 9, 1258. https://doi.org/10.3390/nano9091258

AMA Style

Mohan S, Princz J, Ormeci B, DeRosa MC. Morphological Transformation of Silver Nanoparticles from Commercial Products: Modeling from Product Incorporation, Weathering through Use Scenarios, and Leaching into Wastewater. Nanomaterials. 2019; 9(9):1258. https://doi.org/10.3390/nano9091258

Chicago/Turabian Style

Mohan, Selvan, Juliska Princz, Banu Ormeci, and Maria C. DeRosa 2019. "Morphological Transformation of Silver Nanoparticles from Commercial Products: Modeling from Product Incorporation, Weathering through Use Scenarios, and Leaching into Wastewater" Nanomaterials 9, no. 9: 1258. https://doi.org/10.3390/nano9091258

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