Alan J Kennedy

Summary

Affiliation: Walter Reed Army Medical Center
Country: USA

Publications

  1. doi request reprint Tungsten toxicity, bioaccumulation, and compartmentalization into organisms representing two trophic levels
    Alan J Kennedy
    US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 46:9646-52. 2012
  2. doi request reprint Impact of organic carbon on the stability and toxicity of fresh and stored silver nanoparticles
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, Mississippi, United States
    Environ Sci Technol 46:10772-80. 2012
  3. ncbi request reprint Factors influencing the partitioning and toxicity of nanotubes in the aquatic environment
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180, USA
    Environ Toxicol Chem 27:1932-41. 2008
  4. doi request reprint Influence of nanotube preparation in aquatic bioassays
    Alan J Kennedy
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi 39180, USA
    Environ Toxicol Chem 28:1930-8. 2009
  5. doi request reprint A comparison of acute and chronic toxicity methods for marine sediments
    Alan J Kennedy
    US Army Engineer Research and Development Center, Environmental Laboratory, CEERD EP R, 3909 Halls Ferry Road, Vicksburg, MS 39180 6199, USA
    Mar Environ Res 68:118-27. 2009
  6. doi request reprint Efficacy of non-toxic surfaces to reduce bioadhesion in terrestrial gastropods
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, USA
    Pest Manag Sci 67:318-27. 2011
  7. doi request reprint Fractionating nanosilver: importance for determining toxicity to aquatic test organisms
    Alan J Kennedy
    US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 44:9571-7. 2010
  8. doi request reprint Simultaneous dispersion-dissolution behavior of concentrated silver nanoparticle suspensions in the presence of model organic solutes
    Mark A Chappell
    US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA
    Chemosphere 84:1108-16. 2011
  9. doi request reprint Influence of carbon and metal oxide nanomaterials on aqueous concentrations of the munition constituents cyclotrimethylenetrinitramine (RDX) and tungsten
    Jonathon A Brame
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi, USA Rice University, Houston, Texas, USA
    Environ Toxicol Chem 33:1035-42. 2014
  10. doi request reprint Testing of various membranes for use in a novel sediment porewater isolation chamber for infaunal invertebrate exposure to PCBs
    Jessica G Coleman
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA Electronic address
    Chemosphere 106:65-9. 2014

Collaborators

Detail Information

Publications24

  1. doi request reprint Tungsten toxicity, bioaccumulation, and compartmentalization into organisms representing two trophic levels
    Alan J Kennedy
    US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 46:9646-52. 2012
    ..Finally, synchrotron mapping provided evidence of tungsten in the inner layer of the snail shell, suggesting potential use of snail shells as a biomonitoring tool for metal contamination...
  2. doi request reprint Impact of organic carbon on the stability and toxicity of fresh and stored silver nanoparticles
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, Mississippi, United States
    Environ Sci Technol 46:10772-80. 2012
    ..Biotic Ligand Model (BLM) predictions based on the dissolved fraction in nanosilver suspensions were comparable to observed toxicity...
  3. ncbi request reprint Factors influencing the partitioning and toxicity of nanotubes in the aquatic environment
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180, USA
    Environ Toxicol Chem 27:1932-41. 2008
    ..Our findings stress that it may be inappropriate to classify all NTs into one category in terms of their environmental regulation...
  4. doi request reprint Influence of nanotube preparation in aquatic bioassays
    Alan J Kennedy
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi 39180, USA
    Environ Toxicol Chem 28:1930-8. 2009
    ....
  5. doi request reprint A comparison of acute and chronic toxicity methods for marine sediments
    Alan J Kennedy
    US Army Engineer Research and Development Center, Environmental Laboratory, CEERD EP R, 3909 Halls Ferry Road, Vicksburg, MS 39180 6199, USA
    Mar Environ Res 68:118-27. 2009
    ..In this study, the chronic L. plumulosus test method was less consistent among laboratories relative to acute test methods, identifying potential for toxicity in a similar number (or slightly more) NY/NJ Harbor sediments...
  6. doi request reprint Efficacy of non-toxic surfaces to reduce bioadhesion in terrestrial gastropods
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, MS, USA
    Pest Manag Sci 67:318-27. 2011
    ..This study investigated the effects of different substrates and novel topographical surfaces on the behavioral and mechanical associations of the terrestrial gastropod Otala lactea...
  7. doi request reprint Fractionating nanosilver: importance for determining toxicity to aquatic test organisms
    Alan J Kennedy
    US Army Engineer Research and Development Center, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 44:9571-7. 2010
    ..These results suggest that dissolved Ag(+) plays a critical role in acute toxicity and underscores the importance of characterizing dissolved fractions in nanometal suspensions...
  8. doi request reprint Simultaneous dispersion-dissolution behavior of concentrated silver nanoparticle suspensions in the presence of model organic solutes
    Mark A Chappell
    US Army Engineer Research and Development Center, Vicksburg, MS 39180, USA
    Chemosphere 84:1108-16. 2011
    ..The evidence suggests that regardless of the effect of humics on the stability of nAg dispersions in aqueous systems, polymer loading may enhance the dissolution and release of dissolved Ag into the environment...
  9. doi request reprint Influence of carbon and metal oxide nanomaterials on aqueous concentrations of the munition constituents cyclotrimethylenetrinitramine (RDX) and tungsten
    Jonathon A Brame
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi, USA Rice University, Houston, Texas, USA
    Environ Toxicol Chem 33:1035-42. 2014
    ..Time-dependent binding has implications for the bioavailability, migration, transport, and fate of munitions constituents in the environment...
  10. doi request reprint Testing of various membranes for use in a novel sediment porewater isolation chamber for infaunal invertebrate exposure to PCBs
    Jessica G Coleman
    U S Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, MS 39180, USA Electronic address
    Chemosphere 106:65-9. 2014
    ..The polytetrafluoroethylene membrane was selected for use in the PIC, although exclusion of dissolved organic carbon was not achieved. ..
  11. doi request reprint Comparing the effects of nanosilver size and coating variations on bioavailability, internalization, and elimination, using Lumbriculus variegatus
    Jessica G Coleman
    Environmental Laboratory, US Army Engineer Research and Development Center, Vicksburg, MS, USA
    Environ Toxicol Chem 32:2069-77. 2013
    ..The FFF-ICP-MS and SP-ICP-MS detected AgNPs for up to 48 h post depuration. The present study provides information on bioaccumulation and interactions of AgNPs within biological systems...
  12. doi request reprint Surfactive stabilization of multi-walled carbon nanotube dispersions with dissolved humic substances
    Mark A Chappell
    Environmental Laboratory, Engineering Research and Development Center, US Army Corps of Engineers, Vicksburg, MS 39180, USA
    Environ Pollut 157:1081-7. 2009
    ..This work demonstrates that the chemical structure of humic materials in natural waters is directly linked to their surfactive ability to disperse CNT released into the environment...
  13. doi request reprint Impact assessment of dredging to remove coal fly ash at the Tennessee Valley Authority Kingston Fossil plant using fathead minnow elutriate exposures
    Jacob K Stanley
    U S Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi, USA
    Environ Toxicol Chem 32:822-30. 2013
    ..Results suggest little potential for toxicity to related fish species due to fly ash removal dredging activities given the extreme conditions represented by the elutriates in the present study...
  14. doi request reprint Evaluation of reduced sediment volume procedures for acute toxicity tests using the estuarine amphipod Leptocheirus plumulosus
    Jacob K Stanley
    US Army Engineer Research and Development Center, Environmental Laboratory, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180, USA
    Environ Toxicol Chem 29:2769-76. 2010
    ..In addition, the results of the current study provide toxicity reference values for PAHs, lead, and an oil surrogate for petroleum hydrocarbons...
  15. doi request reprint Determination of nanosilver dissolution kinetics and toxicity in an environmentally relevant aqueous medium
    Ashley R Harmon
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi
    Environ Toxicol Chem 33:1783-91. 2014
    ..Thus, the impact of higher conductivity test media on increased aggregation and decreased toxicity (after 7 d) was relatively greater for the smaller (20-nm) AgNP higher compared to the 50-80 nm AgNPs...
  16. doi request reprint Fate and toxicity of CuO nanospheres and nanorods used in Al/CuO nanothermites before and after combustion
    Alan J Kennedy
    U S Army Engineer Research and Development Center, Environmental Laboratory, Building 3270, EP R, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180, United States
    Environ Sci Technol 47:11258-67. 2013
    ..This study illustrates the importance of considering the fate and toxicology of nanoparticles in context with their relevant in-use applications. ..
  17. doi request reprint Stability of solid-phase selenium species in fly ash after prolonged submersion in a natural river system
    Mark A Chappell
    US Army Engineer Research and Development Center, Vicksburg, MS 39180, United States Electronic address
    Chemosphere 95:174-81. 2014
    ..The enhanced stability of the organo- and sulfide-selenium species coincided with the mixture of the ash material with humic materials in the river, corresponding with notable shifts in the ash carbon- and nitrogen-functionality...
  18. pmc Potential for occupational exposure to engineered carbon-based nanomaterials in environmental laboratory studies
    David R Johnson
    U S Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi 39180, USA
    Environ Health Perspect 118:49-54. 2010
    ..g., presence of natural organic matter (NOM)]...
  19. doi request reprint Assessment of chemical mixtures and groundwater effects on Daphnia magna transcriptomics
    Natalia Garcia-Reyero
    Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Starkville, Mississippi, United States
    Environ Sci Technol 46:42-50. 2012
    ..Future work will need to examine additive and nonadditive mixture effects using a much greater range of different chemical classes in order to clarify the behavior and predictability of complex mixtures...
  20. doi request reprint Inter- and intraspecies chemical sensitivity: a case study using 2,4-dinitroanisole
    Alan J Kennedy
    US Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi, USA
    Environ Toxicol Chem 34:402-11. 2015
    ....
  21. doi request reprint Finite element modeling of multilayered structures of fish scales
    Mei Qiang Chandler
    U S Army Engineer Research and Development Center, Vicksburg, MS 39180, USA Electronic address
    J Mech Behav Biomed Mater 40:375-89. 2014
    ..senegalus. ..
  22. doi request reprint Effects of C60 on the Salmonella typhimurium TA100 transcriptome expression: Insights into C60 -mediated growth inhibition and mutagenicity
    Dawn E Hancock
    U S Army Engineer Research and Development Center, Environmental Laboratory, Vicksburg, Mississippi, USA
    Environ Toxicol Chem 31:1438-44. 2012
    ..typhimurium TA100, resulting in delayed growth and mutagenicity, most likely by interfering with key transport functions and inducing a stress response, respectively...
  23. ncbi request reprint Environmental consequences of water pumped from greater New Orleans following Hurricane Katrina: chemical, toxicological, and infaunal analysis
    Burton C Suedel
    Environmental Laboratory, U S Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, Mississippi 39180 6199, USA
    Environ Sci Technol 41:2594-601. 2007
    ....
  24. doi request reprint Gill histopathologies following exposure to nanosilver or silver nitrate
    Adam D Hawkins
    a Department of BioMolecular Sciences and Environmental Toxicology Research Program, School of Pharmacy, University of Mississippi, University, Mississippi, USA
    J Toxicol Environ Health A 78:301-15. 2015
    ..Gill Na(+)/K(+)-ATPase immunoreactivity was decreased by Ag. These results indicated that both AgNO3 and AgNP created similar disruptions in gill structure and ionic regulation, possibly due to the ionic Ag portion of each treatment. ..