Office of Research and Development Publications

Records 1 to 78 of 78

Wang, Y., C. Hyun Chang, Z. Ji, D. Bouchard, R. Nisbet, J. Schimel, J. Gardea-Torresdey, AND P. Holden. Agglomeration Determines Effects of Carbonaceous Nanomaterials on Soybean Nodulation, Dinitrogen Fixation Potential, and Growth in Soil. ACS Nano. American Chemical Society, Washington, DC, 11(6):5753-5765, (2017).
Knightes, Chris, D. Bouchard, R. Zepp, Matt Henderson, Y. Han, H. Hsieh, Brad Acrey, AND J. Spear. Simulating Exposure Concentrations of Engineered Nanomaterials in Surface Water Systems: WASP8. 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.
Han, Y., Chris Knightes, D. Bouchard, R. Zepp, H. Hsieh, X. Chang, AND J. Spear. Modeling the Environmental Fate of Graphene Oxide and Its Phototransformation Products in Brier Creek Watershed Using the Water Quality Analysis Simulation Program 8 (WASP8). 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.
Bouchard, D., Chris Knightes, X. Chang, AND B. Avant. Simulating Multiwalled Carbon Nanotube Transport in Surface Water Systems Using the Water Quality Analysis Simulation Program (WASP). ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 51(19):11174–11184, (2017).
Zepp, R., W. Wohlleben, E. Sahle-Demessie, C. Kingston, D. Bouchard, B. Acrey, A. Commodore, O. Okungbowa, AND E. Walton. Approaches to evaluating weathering effects on release of engineered nanomaterials from solid matrices. ACS Fall 2017 National Meeting, Washington, DC, August 20 - 24, 2017.
Avant, B., Chris Knightes, D. Bouchard, X. Chang, Matt Henderson, AND R. Zepp. Modeling Engineered Nanomaterials (ENMs) Fate and Transport in Aquatic Ecosystems. Georgia Water Resources Conference, Athens, GA, April 19 - 20, 2017.
Zepp, R., D. Bouchard, W. Hou, C. Chen, B. Acrey, X. Chang, Matt Henderson, S. Martin, AND Chris Knightes. Roles of Direct and Indirect Light-Induced Transformations of Carbon Nanomaterials in Exposures in Aquatic Systems. SETAC North America 37th Annual Meeting, Orlando, FL, November 06 - 10, 2016.
Henderson, Matt, D. Bouchard, X. Chang, S. Al-Abed, AND Q. Teng. Biomarker analysis of liver cells exposed to surfactant-wrapped and oxidized multi-walled carbon nanotubes (MWCNTs). SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, Netherlands, 565:777–786, (2016).
Zepp, R., D. Bouchard, E. Sahle-Demessie, W. Wohlleben, S. Vazquez-Campos, J. Carter, C. Kingston, R. Canady, B. Acrey, AND C. Chen. Pilot Inter-Laboratory Studies for Evaluating Weathering-Induced Release of Carbon Nanotubes from Solid Matrices. Nanotech 2016, Washington, DC, May 22 - 26, 2016.
Guiney, L., N. Mansukhani, M. Duch, I. Chowdhury, D. Bouchard, X. Wang, Z. Ji, A. Nel, AND M. Hersam. Investigating the Toxicity and Environmental Fate of Graphene Nanomaterials. 248th ACS National Meeting, San Francisco, CA, August 10 - 14, 2014.
Zepp, R., D. Bouchard, W. Hou, Chris Knightes, Matt Henderson, I. Chowdhury, C. Chen, H. Fairbrother, D. Goodwin, AND L. Kong. Sunlight-induced Transformations of Graphene-based Nanomaterials in Aquatic Environments. ACS National Meeting & Exposition, Boston, MA, August 17 - 20, 2015.
Chowdhury, I., n. mansukhani, l. guiney, m. hersam, AND D. Bouchard. Aggregation and Stability of Reduced Graphene Oxide: Complex Roles of Divalent Cations, pH, and Natural Organic Matter. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 49(18):10886-10893, (2015).
Chang, X., Matt Henderson, AND D. Bouchard. Multiwalled Carbon Nanotube Dispersion Methods Affect Their Aggregation, Deposition, and Biomarker Response. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 49(11):6645-6653, (2015).
Smith, C N., F E. Stancil, D L. Spidle, P D. Smith, B E. Kitchens, H P. Kollig, L Smith, S Senter, M Cyterski, L M. Prieto, D C. Bouchard, K Wolfe, R S. Parmar, Y Mohamoud, M. Flexner, T. R. Cavinder, AND B. Johnson. A COMPREHENSIVE NONPOINT SOURCE FIELD STUDY FOR SEDIMENT, NUTRIENTS, AND PATHOGENS IN THE SOUTH FORK BROAD RIVER WATERSHED IN NORTHEAST GEORGIA. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-04/026 (NTIS PB2005-101441), 2004.
Henderson, Matt, I. Chowdhury, W. Hou, X. Chang, S. Martin, R. Zepp, AND D. Bouchard. Assessing the exposure and toxicological implications of environmental transformations of graphene oxide using in vitro methods. 250th American Chemical Society National Meeting & Exposition, Boston, MA, August 16 - 20, 2015.
Chang, X. AND D. Bouchard. Exchange of Surfactant by Natural Organic Matter on the Surfaces of Multi-Walled Carbon Nanotubes. 250th American Chemical Society National Meeting & Exposition, Boston, MA, August 15 - 21, 2015.
Hou, W., I. Chowdhury, D. Goodwin, Matt Henderson, D. Fairbrother, D. Bouchard, AND R. Zepp. Photochemical transformation of graphene oxide in sunlight (journal). ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 49(6):3435-3443, (2015).
Chang, X., Matt Henderson, AND D. Bouchard. Multi-instrumental characterization of carbon nanotubes dispersed in aqueous solutions. Presented at 248th ACS National Meeting and Exposition, San Francisco, CA, August 10 - 14, 2014.
Henderson, Matt, I. Chowdhury, X. Chang, Q. Teng, AND D. Bouchard. Developing exposure indices of graphene-based nanoparticles by coupling lipid-membrane interactions and in vitro cellular response. Presented at 248th ACS National Meeting, San Francisco, CA, August 11 - 15, 2014.
Hou, W., I. Chowdhury, D. Goodwin, Matt Henderson, H. Fairbrother, D. Bouchard, AND R. Zepp. Direct and Indirect Phototransformation of Graphene Oxide in Sunlight. Presented at 248th National Meeting of the American Chemical Society, San Francisco, CA, August 11 - 14, 2014.
Knightes, Chris, D. Bouchard, X. Chang, AND I. Chowdhury. Simulating the fate and transport of nanomaterials in surface waters. Presented at Quantifying Exposure to engineered Nanomaterials Workshop, Arlington, VA, July 07 - 08, 2015.
Chowdhury, I., W. Hou, D. Goodwin, Matt Henderson, R. Zepp, AND D. Bouchard. Sunlight affects aggregation and deposition of graphene oxide in the aquatic environment. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 78(1):37-46, (2015).
Hou, W., I. Chowdhury, D. Goodwin, Matt Henderson, D. Fairbrother, D. Bouchard, AND R. Zepp. Photochemical Transformation of Graphene Oxide in Sunlight. ENVIRONMENTAL SCIENCE AND TECHNOLOGY. John Wiley & Sons, Ltd., Indianapolis, IN, 49(6):3435-3443, (2015).
Bouchard, D., X. Chang, Chris Knightes, AND I. Chowdhury. Parameterizing water quality analysis and simulation program (WASP) for carbon-based nanomaterials. Presented at ACS Fall Meeting, San Francisco, CA, August 04 - 08, 2014.
Wong, Kelvin, D. Bouchard, AND M. Molina. Relative transport of human adenovirus and MS2 in porous media. JOURNAL OF COLLOIDS AND SURFACES B: BIOINTERFACES. Elsevier Science Ltd, New York, NY, 122:778-784, (2014).
Chowdhury, I., M. Duch, N. Mansukhani, M. Hersam, AND D. Bouchard. Interactions of Graphene Oxide Nanomaterials with Natural Organic Matter and Metal Oxide Surfaces. ENVIRONMENTAL SCIENCE AND TECHNOLOGY. John Wiley & Sons, Ltd., Indianapolis, IN, 48(2):961-969, (2014).
Bouchard, D., X. Chang, Chris Knightes, AND I. Chowdhury. Parameterizing A Surface Water Model for Multiwalled Carbon Nanotubes. Presented at 247th ACS National Meeting, Dallas, TX, March 16 - 20, 2014.
Bouchard, D., W. Zhang, AND X. Chang. A Rapid Screen Technique for Estimating Nanoparticle Transport in Porous Media. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 47(12):4086-4094, (2013).
Chang, X. AND D. Bouchard. Multiwalled Carbon Nanotube Deposition on Model Environmental Surfaces. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 47(18):10372-10380, (2013).
Chowdhury, I., M. Duch, N. Mansukhani, M. Hersam, AND D. Bouchard. Aggregation, Deposition and Release of Graphene Oxide Nanomaterials in the Aquatic Environment. Presented at Gordon Conference: Environmental Nanotechnology - Novel Approaches to Meet Global Challenges, Stowe, VT, June 02 - 07, 2013.
Mukherjee, B., R. Gourishetty, W. Zhang, T. Powell, J. Weaver, R. Zepp, AND D. Bouchard. Uncoated and Polymer Coated Titanium Dioxide (TiO2)Nanoparticles: Differences in Deposition and Charge Characteristics. Presented at 2013 Spring Meeting & 9th Global Congress on Process Safety, San Antonio, TX, April 28 - May 02, 2013.
Chowdhury, I., M. Duch, N. Mansukhani, M. Hersam, AND D. Bouchard. Colloidal Properties and Stability of Graphene Oxide Nanomaterials in the Aquatic Environment. ENVIRONMENTAL SCIENCE AND TECHNOLOGY. John Wiley & Sons, Ltd., Indianapolis, IN, 47(12):6288-6296, (2013).
Zhang, W., U. Rattanaudompol, T. B. POWELL, AND D. BOUCHARD. Influence of Natural Organic Matter on Aggregation, Deposition, and Transport of Fullerene Colloids in Aqueous Systems. Presented at AGU Fall Meeting 2011, San Francisco, CA, December 05 - 09, 2011.
Henderson, Matt, D. Bouchard, X. Chang, I. Chowdhury, B. Foster, S. Aronson, AND Q. Teng. Metabolomic Analysis of Liver Cells Exposed to Carbon Nanotubes and Graphene Oxide. Presented at Society of Toxicology, Santonio, TX, March 10 - 14, 2013.
Zhang, W., U. Rattanaudompol, H. Li, AND D. Bouchard. Effects of humic and fulvic acids on aggregation of aqu/nC60 nanoparticles. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 47(5):1793-1802, (2013).
BOUCHARD, D., W. Zheng, T. B. POWELL, AND U. Rattanaudompol. Aggregation Kinetics and Transport of Single-Walled CarbonNanotubes at Low Surfactant Concentrations. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 46(8):4458-4465, (2012).
Zhang, W., C. W. Isaacson, U. Rattanaudompol, T. B. POWELL, AND D. BOUCHARD. Fullerene Nanoparticles Exhibit Greater Retention in Freshwater Sediment than in Model Porous Media. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 46(9):2992-3004, (2012).
Isaacson, C., W. Zhang, T. B. POWELL, X. MA, AND D. BOUCHARD. Temporal Changes in Aqu/C60 Physical-Chemical, Deposition, and Transport Characteristics in Aqueous Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 45(12):5170-5177, (2011).
Patra, M., X. MA, C. Isaacson, D. BOUCHARD, H. POYNTON, J. M. LAZORCHAK, AND K. R. ROGERS. Changes in Agglomeration of Fullerenes During Ingestion and Excretion in Thamnocephalus Platyurus. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, 30(4):828-835, (2011).
Patra, M., X. Ma, D. BOUCHARD, H. POYNTON, J. M. LAZORCHAK, AND K. R. ROGERS. Changes in Agglomeration of Fullerenes During Ingestion and Excretion in <I>Thamnocephalus Platuyrus</I>. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, 30(4):828-8335, (2011).
Isaacson, C. AND D. BOUCHARD. Effects of Humic Acid and Sunlight on the Generation and Aggregation State of Aqu/C60 Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 44(23):8971-8976, (2010).
MA, X., B. Wigington, AND D. BOUCHARD. Fullerene C60: Surface Energy and Interfacial Interactions in Aqueous Systems. LANGMUIR. American Chemical Society, Washington, DC, 26(14):11886-11893, (2010).
BOUCHARD, D. AND X. MA. Extraction and HPLC- UV Analysis of C<SUB>60</SUB>, C<SUB>70</SUB>, and [6,6]-phenyl C<SUB>61</SUB>-butyric acid methyl ester in Synthetic and Natural Waters. JOURNAL OF CHROMATOGRAPHY A. Elsevier Science Ltd, New York, NY, 1203(2):153-159, (2008).
Isaacson, C. W. AND D. BOUCHARD. Asymmetric Flow Field Flow Fractionation of Aqueous C60 Nanoparticles with Size Determination by Dynamic Light Scattering and Quantification by Liquid Chromatography Atmospheric Pressure Photo-Ionization Mass Spectrometry . JOURNAL OF CHROMATOGRAPHY A. Elsevier Science Ltd, New York, NY, 1217(9):1506-1512, (2010).
MA, X. AND D. BOUCHARD. Formation of Aqueous Suspensions of Fullerenes. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 43(2):330-336, (2009).
BOUCHARD, D., XIN MA, AND C. W. Isaacson. Colloidal Properties of Aqueous Fullerenes: Isoelectric Points and Aggregation Kinetics of C60 and C60 Derivatives. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 43(17):6597-6603, (2009).
Qu, X., Y. S. Hwang, P. J. Alvarez, D. BOUCHARD, AND Q. Li. UV Irradiation and Humic Acid Mediate Aggregation of Aqueous Fullerene (nC60) Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 44(20):7821-7826, (2010).
Isaacson, C. AND D. BOUCHARD. Suspension and Characterization of Aqueous C60 Nanomaterials in Natural and Engineered Waters. Presented at SETAC Europe 20th Annual Meeting, Seville, SPAIN, May 23 - 27, 2010.
Isaacson, C. W., XIN MA, S. Lee, AND D. BOUCHARD. Asymmetric Flow-Field Flow Fractionation (AF4) of Aqueous C60 Aggregates with Dynamic Light Scattering Size and LC-MS. Presented at SETAC North America 30th Annual Meeting, New Orleans, LA, November 19 - 23, 2009.
BOUCHARD, D., X. MA, C. Isaacson, AND J. W. WEAVER. Retention of Aqu/C60 Nanoparticles on Quartz Surfaces. Presented at Pacifichem 2010 Meeting, Honolulu, HI, December 15 - 20, 2010.
MA, X., B. Wigington, AND D. BOUCHARD. Surface Energy of C60 and the Interfacial Interactions in Aqueous Systems . Presented at 239th ACS National Meeting & Exposition, San Francisco, CA, March 21 - 25, 2010.
Kong, L., K. Chen, R. G. ZEPP, X. MA, D. BOUCHARD, AND C. Isaacson. Light-Initiated Transformation of C60 Clusters in Water. Presented at 239th ACS National Meeting & Exposition, San Francisco, CA, March 21 - 25, 2010.
Kong, L., K. Chen, R. G. ZEPP, X. MA, D. BOUCHARD, AND C. Isaacson. Effect of Natural Organic Matter on the Light-initiated Transformation of Fullerenes. Presented at 239th ACS National Meeting & Exposition, San Francisco, CA, March 21 - 25, 2010.
Isaacson, C. AND D. BOUCHARD. Effect of Humic Acid and Sunlight on the Generation of aqu/C60. Presented at Nano 2010: Environmental Effects of Nanoparticles and Nanomaterials, Clemson, SC, August 22 - 26, 2010.
POWELL, T. B. AND D. BOUCHARD. Environmental Detection of Single-Walled Carbon Nanotubes Utilizing Near-Infrared Fluorescence. Presented at ASABE Annual International Meeting, Pittsburgh, PA, June 20 - 23, 2010.
BOUCHARD, D., XIN MA, C. Isaacson, AND J. W. WEAVER. Transport of Fullerene Nanoparticles in Saturated Porous Media. Presented at Micropol & Ecohazard 2009 Conference, San Francisco, CA, June 08 - 10, 2009.
Isaacson, C., X. MA, B. Wigington, AND D. BOUCHARD. Meeting in Florida: Using Asymmetric Flow Field-Flow Fractionation (AF4) to Determine C60 Colloidal Size Distributions. Presented at SETAC 29th Annual Meeting, Tampa, FL, November 16 - 20, 2008.
MA, X., D. BOUCHARD, J. W. WEAVER, AND C. Isaacson. Fullerene Transport in Saturated Porous Media. Presented at SETAC Europe 19th Annual Meeting, Goteborg, SWEDEN, May 31 - June 04, 2009.
BOUCHARD, D., X. MA, AND C. ISAACSON. Characterizing Fullerene Nanoparticles in Aqueous Suspensions. Presented at American Chemical Society 42nd Western Regional Meeting , Las Vegas, NV, September 23 - 27, 2008.
Isaacson, C., X. MA, B. Wigington, AND D. BOUCHARD. Size Determination of Aqueous C60 by Asymmetric Flow Field-Flow Fractionation (AF4) and in-Line Dynamic Light Scattering. Presented at SETAC Europe 19th Annual Meeting, Goteborg, SWEDEN, May 31 - June 04, 2009.
Isaacson, C., X. MA, B. Wigington, T. Burns, AND D. BOUCHARD. Determining Aqueous Fullerene Particle Size Distributions by Asymmetric Flow Field-Flow Fractionation (AF4) without Surfactants. Presented at 238th ACS National Meeting & Exposition, Washington, DC, August 16 - 20, 2009.
MA, X. AND D. BOUCHARD. Aggregation and Deposition of C<SUB>60</SUB> in Aqueous Systems. Presented at 236th ACS National Meeting & Exposition, Philadelphia, PA, August 17 - 21, 2008.
MA, X. AND D. BOUCHARD. Formation Kinetics of Aqueous Suspensions of Fullerenes:Meeting in New Orleans. Presented at American Chemical Society National Meeting, New Orleans, LA, April 06 - 10, 2008.
ISAACSON, C., X. MA, AND D. BOUCHARD. Using Asymmetric Flow Field-Flow Fractionation (AF4) to Determine C60 Colloidal Size Distributions. Presented at Gordon Research Conference, Environmental Sciences: Water, Holderness, NH, June 22 - 27, 2008.
Isaacson, C., J. A. Field, AND D. BOUCHARD. Development of Mass Spectrometric Ionization Methods for Fullerenes and Fullerene Derivatives. Presented at 236th ACS National Meeting & Exposition, Philadelphia, PA, August 17 - 21, 2008.
BOUCHARD, D., X. MA, AND C. Isaacson. Characterizing Aqueous Fullerene Suspensions. Presented at National Environmental Monitoring Conference, Washington, DC, August 11 - 15, 2008.
BOUCHARD, D. AND X. MA. Extraction and Analysis of C<SUB>60</SUB>, C<SUB>70</SUB> and PCBM in Aqueous Suspensions. Presented at American Chemical Society National Meeting, New Orleans, LA, April 06 - 10, 2008.
BOUCHARD, D. MEASUREMENT OF NANOPARTICLES IN WATER. Presented at 80th Annual Water Environment Federation Technical Exhibition and Conference, San Diego, CA, October 13 - 17, 2007.
BOUCHARD, D., J. G. LYON, J. E. DENNE, AND C. R. SIBERT. EPA/ORD NATIONAL EXPOSURE RESEARCH LABORATORY MEASUREMENT SCIENCE SUPPORT FOR HOMELAND SECURITY. Presented at National Environmental Monitoring Conference, Washington, DC, July 25 - 27, 2005.
BOUCHARD, D., J. G. LYON, AND J. E. DENNE. EPA-ORD MEASUREMENT SCIENCE SUPPORT FOR HOMELAND SECURITY. Presented at National Environmental Monitoring Conference, Washington, DC, July 25 - 27, 2005.
Smith, C N., D L. Spidle, F E. Stancil, P D. Smith, B E. Kitchens, H P. Kollig, L Smith, S Senter, M J. Cyterski, L M. Prieto, D C. Bouchard, K Wolfe, M. Flexner, T. R. Cavinder, AND B. Johnson. A COMPREHENISVE NONPOINT SOURCE FIELD STUDY FOR SEDIMENT, NUTRIENTS AND PATHOGENS IN THE SOUTH FORK BROAD RIVER WATERSHED IN NORTHEAST GEORGIA. Presented at Science Forum 2003, Washington, DC, May 5-7, 2003.
Smith, C N., D L. Spidle, P D. Smith, B E. Kitchens, M J. Cyterski, L M. Prieto, D C. Bouchard, K Wolfe, H P. Kollig, L Smith, S Senter, M. Flexner, T. R. Cavinder, AND B. Johnson. A COMPREHENSIVE NONPOINT SOURCE FIELD STUDY FOR SEDIMENT, NUTRIENTS AND PATHOGENS IN THE SOUTH FORK BROAD RIVER WATERSHED, GEORGIA. Presented at Science Forum 2003, Washington, DC, May 5-7, 2003.
Bouchard, D C. COSOLVENT EFFECTS ON PHENANTHRENE SORPTION-DESORPTION ON A FRESH-WATER SEDIMENT. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 22(4):736-740, (2003).
Bouchard, D C. SORPTION OF VINCLOZOLIN AND ATRAZINE ON FOUR GEOSORBENTS. PESTICIDE SCIENCE 55(11):1095-1102, (1999).
Bouchard, D C. COSOLVENT EFFECTS ON SORPTION ISOTHERM LINEARITY. JOURNAL OF CONTAMINANT HYDROLOGY 56(3-4):159-174, (2002).
Bouchard, D C. ATRAZINE DESORPTION KINETICS FROM A FRESH-WATER SEDIMENT. Presented at 54th Southeast Regional Meeting of the American Chemical Society, Charleston, SC, November 13-16, 2002.
Bouchard, D C. USING METHANOL-WATER SYSTEMS TO INVESTIGATE PHENANTHRENE SORPTION-DESORPTION ON SEDIMENT. Presented at 223rd American Chemical Society National Meeting, Orlando, FL, April 7-11, 2002.
Bouchard, D C. COSOLVENT EFFECTS ON ORGANIC CHEMICAL PARTITIONING TO SEDIMENT ORGANIC CARBON. Presented at Society of Environmental Toxicology and Chemistry Organic Soil Contaminants Conference, Copenhagen, Denmark, September 2-5, 2001.