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Search Publications by: Elijah Petersen (Fed)

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Displaying 51 - 75 of 103

GC-MS/MS Measurement of Nanomaterial Induced Genotoxicity in Isolated DNA

November 24, 2015
Author(s)
Bryant C. Nelson, Elijah J. Petersen, Pawel Jaruga, M Miral Dizdar
Making accurate measurements of the environmental fate and environmental and biological effects of engineered nanomaterials (ENMs) is critical for reliable risk assessment of these materials. ENM induced oxidative stress and/or direct binding of ENMs to

GC/MS Measurement of Nanomaterial Induced Genotoxicity in Isolated DNA

November 24, 2015
Author(s)
Bryant C. Nelson, Elijah J. Petersen, Pawel Jaruga, M Miral Dizdar
Making accurate measurements of the environmental fate and environmental and biological effects of engineered nanomaterials (ENMs) is critical for reliable risk assessment of these materials. ENM induced oxidative stress and/or direct binding of ENMs to

LC-MS/MS Measurement of Nanomaterial Induced Genotoxicity in Isolated DNA

November 24, 2015
Author(s)
Bryant C. Nelson, Elijah J. Petersen, Pawel Jaruga, M Miral Dizdar
Making accurate measurements of the environmental fate and environmental and biological effects of engineered nanomaterials (ENMs) is critical for reliable risk assessment of these materials. However, the unique behaviors of ENMs may cause artifacts in

Degradation of 14C-labeled Graphene via Fenton Reaction: Reaction rates, characterization of reaction products, and potential ecological effects

September 28, 2015
Author(s)
Yiping Feng, Elijah Petersen, Kun Lu, Xiangke Guo, Shixiang Gao, Liang Mao
Graphene has attracted considerable interest due to its numerous emerging applications. It is inevitable that graphene will be released into the environment during their transportation and usage in consumer products, but their ecological risks are still

ADAPTING OECD AQUATIC TOXICITY TESTS FOR USE WITH MANUFACTURED NANOMATERIALS: KEY ISSUES, CONSENSUS RECOMMENDATIONS, AND DATA GAPS

July 16, 2015
Author(s)
Elijah J. Petersen, Alan Kennedy, Greg Goss, Ho Kay, Jamie Lead, Shannon Hanna, Kerstin Hund-Rinke, Brian Mader, Nicholas Manier, Pascal Pandard, Edward Salinas, Kathrin Schwirn, Doris Voelker
The unique or enhanced properties of manufactured nanomaterials (MNs) suggest that their use in nano-enabled products will continue to increase in the future. This will result in increasing potential for human and environmental exposure to MNs, during

A perspective on the use of nanomaterial categorization for risk assessment and regulatory decision-making

March 19, 2015
Author(s)
Hilary Godwin, Catherine Nameth, David Avery, Lynn Bergeson, Elizabeth Beryt, Wlliam Boyd, Amy Clippinger, Christine Hendren, Patricia Holden, Keith Houck, Agnes Kane, Frederick Klaessig, Tong Kooi Lee, Iseult Lynch, Timothy Malloy, Mary Miller, Gunter Oberdorster, Elijah Petersen, Vicki Stone, Andre Nel
For nanotechnology to meet its potential as a revolutionary and sustainable technology, it is necessary that engineered nanomaterials (ENMs) and nano-enabled products that are safe and effective make it to the marketplace. This process is frequently

The Use of Cause-and-Effect Analysis to Design a High Quality Nano-Cyto-Toxicology Assay

December 4, 2014
Author(s)
Matthias Rosslein, John T. Elliott, Marc L. Salit, Elijah Petersen, Cordula Hirsch, Harald Krug, Peter Wick
An important consideration in developing standards and regulations that govern the production and use of commercial nanoscale materials is the development of robust and reliable measurements to assess potential biological effects of these nanomaterials

Assessment of Crude Oil and a Dispersant in a Simulated Spartina alterniflora Salt Marsh Ecosystem

December 1, 2014
Author(s)
P Key, K Chung, C Cooksey, DeLorenzo M, M Fulton, D Greenfield, T Greig, J Hylund, Bryant C. Nelson, Varun Patel, P Pennington, Elijah Petersen, E Wirth
NOAA's Environmental Sensitivity Index (ESI) lists saltmarshes along the Atlantic and Gulf Coasts as the most vulnerable habitat to oil spills. As a result of the Deepwater Horizon offshore drilling rig accident, more that 200 million gallons of crude oil

The DNA Damaging Potential of Photoactivated P25 Titanium Dioxide Nanoparticles

September 30, 2014
Author(s)
Elijah Petersen, Vytas Reipa, Stephanie S. Watson, Deborah Jacobs, Savelas A. Rabb, Bryant C. Nelson
Titanium dioxide nanoparticles (TiO2 NPs) are found in numerous commercial and personal care products. Thus, it is necessary to understand and characterize their potential environmental health and safety risks. It is well known that photoactivated TiO2 NPs

Using Single Particle ICP-MS as a Tool for Understanding Metallic Nanoparticle Transformation during Nanotoxicity Assays

July 1, 2014
Author(s)
Monique E. Johnson, Shannon Hanna, Antonio R. Montoro Bustos, Bryant C. Nelson, Elijah J. Petersen, Lee L. Yu
The advent of engineered nanoparticles (ENPs) and their increased use has remarkably improved the performance of basic materials and consumer products, but has also increased the potential for ENP release into the environment. Technical procedures, more

Multi-method analysis of multiwall carbon nanotube polymer nanocomposite samples after photodegradation

June 16, 2014
Author(s)
Elijah Petersen, Thomas F. Lam, Justin Gorham, Keana Scott, Chris Long, Renu Sharma, Li Piin Sung, James Alexander Liddle, Tinh Nguyen
Nanomaterials can be used as nanofillers to enhance the properties of polymeric materials. However, the effect of weathering on nanocomposites and the potential for nanomaterial release is not yet well understood. Multiple analytical methods are needed to

Potential artifacts and misinterpretations when evaluating the ecotoxicological effects of nanomaterials

June 16, 2014
Author(s)
Elijah J. Petersen, Theodore Henry, Jian Zhao, Robert MacCuspie, Teresa L. Kirschling, Vincent A. Hackley, Baoshan Xing, Jason White
Engineered nanomaterials (ENMs) have significant commercial potential in a broad range of industries for consumer products as a result of their novel properties. However, these same properties may cause unexpected risks once ENMs are released into the

Potential artifacts when evaluating the ecotoxicological effects of nanomaterials

March 28, 2014
Author(s)
Elijah J. Petersen, Marina Dobrovolskaia, Theodore B. Henry, Jian Zhao, Robert I. MacCuspie, Teresa L. Kirschling, Baoshan Xing, Vincent A. Hackley, Jason White
Engineered nanomaterials (ENMs) have a significant commercial potential for ENM-enable products as a result of novel or enhanced properties. However, the unique behaviors of ENMs may also cause artifacts, spurious results, effects, or findings, when

Microscopic investigation of Single-Wall Carbon Nanotube Uptake by Daphnia magna

December 18, 2013
Author(s)
Aaron Edgington, Elijah Petersen, Andrew Herzing, Apparao Rao, Stephen Klaine
The objectives of this study were to determine the absorption of single-wall carbon nanotubes (SWCNTs) across the gut epithelial cells in Daphnia magna and to determine if absorption was influenced by their surface functionalization. This project utilized

Impact of UV Irradiation on the Surface Chemistry and Structure of Multiwall Carbon Nanotube Epoxy Nanocomposites

December 6, 2013
Author(s)
Elijah Petersen, Thomas F. Lam, Justin Gorham, Keana Scott, Chris Long, Deborah Jacobs, Renu Sharma, James Alexander Liddle, Tinh Nguyen
One of the most promising applications of nanomaterials is as nanofillers to enhance the properties of polymeric materials. However, the effect of nanofillers on polymers subject to typical environmental stresses, such as ultraviolet (UV) radiation, high

Biological Uptake and Depuration of Radio-labeled Graphene by Daphnia magna

October 5, 2013
Author(s)
Xiangke Guo, Shipeng Dong, Elijah Petersen, Shiziang Gao, Qingguo Huang, Cheng Gu, Liang Mao
BACKGROUND: Graphene layers are potential candidates in a large number of applications due to their novel properties. However, little is known about their behaviors and associated potential risks largely as a result of a lack of quantification techniques

Biodegradation of 14C-labeled Multi-Walled Carbon Nanotubes

October 1, 2013
Author(s)
Liwen Zhang, Elijah Petersen, Mussie Habteselassie, Qingguo Huang
Environmental transformations of multi-walled carbon nanotubes (MWCNTs) can change their environmental fate and is important to their life cycle assessment, but has not yet been fully investigated due to its high recalcitrance. We are reporting a bacterial
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