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Title: Evolution of silver nanoparticles in the rat lung investigated by X-ray absorption spectroscopy

Abstract

Following a 6-h inhalation exposure to aerosolized 20 and 110 nm diameter silver nanoparticles, lung tissues from rats were investigated with X-ray absorption spectroscopy, which can identify the chemical state of silver species. Lung tissues were processed immediately after sacrifice of the animals at 0, 1, 3, and 7 days post exposure and the samples were stored in an inert and low-temperature environment until measured. We found that it is critical to follow a proper processing, storage and measurement protocol; otherwise only silver oxides are detected after inhalation even for the larger nanoparticles. The results of X-ray absorption spectroscopy measurements taken in air at 85 K suggest that the dominating silver species in all the postexposure lung tissues were metallic silver, not silver oxide, or solvated silver cations. The results further indicate that the silver nanoparticles in the tissues were transformed from the original nanoparticles to other forms of metallic silver nanomaterials and the rate of this transformation depended on the size of the original nanoparticles. Furthermore, we found that 20 nm diameter silver nanoparticles were significantly modified after aerosolization and 6-h inhalation/deposition, whereas larger, 110 nm diameter nanoparticles were largely unchanged. Over the seven-day postexposure period the smaller 20more » nm silver nanoparticles underwent less change in the lung tissue than the larger 110 nm silver nanoparticles. In contrast, silica-coated gold nanoparticles did not undergo any modification processes and remained as the initial nanoparticles throughout the 7-day study period.« less

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Univ. of California, Davis, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1346164
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
Additional Journal Information:
Journal Volume: 119; Journal Issue: 2; Journal ID: ISSN 1089-5639
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Davidson, R. Andrew, Anderson, Donald S., Van Winkle, Laura S., Pinkerton, Kent E., and Guo, T. Evolution of silver nanoparticles in the rat lung investigated by X-ray absorption spectroscopy. United States: N. p., 2014. Web. doi:10.1021/jp510103m.
Davidson, R. Andrew, Anderson, Donald S., Van Winkle, Laura S., Pinkerton, Kent E., & Guo, T. Evolution of silver nanoparticles in the rat lung investigated by X-ray absorption spectroscopy. United States. https://doi.org/10.1021/jp510103m
Davidson, R. Andrew, Anderson, Donald S., Van Winkle, Laura S., Pinkerton, Kent E., and Guo, T. 2014. "Evolution of silver nanoparticles in the rat lung investigated by X-ray absorption spectroscopy". United States. https://doi.org/10.1021/jp510103m. https://www.osti.gov/servlets/purl/1346164.
@article{osti_1346164,
title = {Evolution of silver nanoparticles in the rat lung investigated by X-ray absorption spectroscopy},
author = {Davidson, R. Andrew and Anderson, Donald S. and Van Winkle, Laura S. and Pinkerton, Kent E. and Guo, T.},
abstractNote = {Following a 6-h inhalation exposure to aerosolized 20 and 110 nm diameter silver nanoparticles, lung tissues from rats were investigated with X-ray absorption spectroscopy, which can identify the chemical state of silver species. Lung tissues were processed immediately after sacrifice of the animals at 0, 1, 3, and 7 days post exposure and the samples were stored in an inert and low-temperature environment until measured. We found that it is critical to follow a proper processing, storage and measurement protocol; otherwise only silver oxides are detected after inhalation even for the larger nanoparticles. The results of X-ray absorption spectroscopy measurements taken in air at 85 K suggest that the dominating silver species in all the postexposure lung tissues were metallic silver, not silver oxide, or solvated silver cations. The results further indicate that the silver nanoparticles in the tissues were transformed from the original nanoparticles to other forms of metallic silver nanomaterials and the rate of this transformation depended on the size of the original nanoparticles. Furthermore, we found that 20 nm diameter silver nanoparticles were significantly modified after aerosolization and 6-h inhalation/deposition, whereas larger, 110 nm diameter nanoparticles were largely unchanged. Over the seven-day postexposure period the smaller 20 nm silver nanoparticles underwent less change in the lung tissue than the larger 110 nm silver nanoparticles. In contrast, silica-coated gold nanoparticles did not undergo any modification processes and remained as the initial nanoparticles throughout the 7-day study period.},
doi = {10.1021/jp510103m},
url = {https://www.osti.gov/biblio/1346164}, journal = {Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory},
issn = {1089-5639},
number = 2,
volume = 119,
place = {United States},
year = {Tue Dec 16 00:00:00 EST 2014},
month = {Tue Dec 16 00:00:00 EST 2014}
}

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Cited by: 23 works
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Works referenced in this record:

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Influence of Particle Size on Persistence and Clearance of Aerosolized Silver Nanoparticles in the Rat Lung
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Toxicity of Silver Nanoparticles in Macrophages
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The toxicity of silver nanoparticles to zebrafish embryos increases through sewage treatment processes
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Nanotechnology as a therapeutic tool to combat microbial resistance
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Silver nanoparticles and silver nitrate induce high toxicity to Pseudokirchneriella subcapitata, Daphnia magna and Danio rerio
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Oxidative stress-dependent toxicity of silver nanoparticles in human hepatoma cells
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Toxicity of silver nanoparticles—Nanoparticle or silver ion?
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Toxicity of Silver Nanoparticles Increases during Storage Because of Slow Dissolution under Release of Silver Ions
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Environmental Transformations of Silver Nanoparticles: Impact on Stability and Toxicity
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Synthesis and Surface Modification of Highly Monodispersed, Spherical Gold Nanoparticles of 50−200 nm
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Turkevich Method for Gold Nanoparticle Synthesis Revisited
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Analysis of Adsorption and Binding Behaviors of Silver Nanoparticles onto a Pyridyl-Terminated Surface Using XPS and AFM
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Distribution, Elimination, and Toxicity of Silver Nanoparticles and Silver Ions in Rats after 28-Day Oral Exposure
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Chemical Transformations of Nanosilver in Biological Environments
journal, October 2012


Toxicity Mechanisms in Escherichia coli Vary for Silver Nanoparticles and Differ from Ionic Silver
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Estimation of mean size and shape of small metal particles by EXAFS
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Role of base in the formation of silver nanoparticles synthesized using sodium acrylate as a dual reducing and encapsulating agent
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The dissolution and biological effects of silver nanoparticles in biological media
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Works referencing / citing this record:

Corrosion processes of triangular silver nanoparticles compared to bulk silver
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Influence of Particle Size on Persistence and Clearance of Aerosolized Silver Nanoparticles in the Rat Lung
journal, January 2015


Size-Dependent Deposition, Translocation, and Microglial Activation of Inhaled Silver Nanoparticles in the Rodent Nose and Brain
journal, December 2016


Silver nanoparticles: Electron transfer, reactive oxygen species, oxidative stress, beneficial and toxicological effects. Mini review: AGNP BENEFICIAL AND TOXICOLOGICAL EFFECTS
journal, June 2018


Metal-organic framework patterns and membranes with heterogeneous pores for flow-assisted switchable separations
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Aerosolized Silver Nanoparticles in the Rat Lung and Pulmonary Responses over Time
journal, February 2016


Metal-organic framework patterns and membranes with heterogeneous pores for flow-assisted switchable separations
journal, September 2018


Size-Dependent Deposition, Translocation, and Microglial Activation of Inhaled Silver Nanoparticles in the Rodent Nose and Brain
journal, December 2016