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United States Department of Agriculture

Agricultural Research Service

Research Project: Protection of Food and Water Supplies from Pathogen Contamination Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)

Release of E.coli D21g with transients in water content - (Peer Reviewed Journal)
Wang, Y., Bradford, S.A., Simunek, J. 2014. Release of E.coli D21g with transients in water content. Journal of Environmental Science and Technology. DOI: 10.1021/es501956k.
Persistence of Escherichia coli O157 and non-O157 strains in agricultural soils - (Peer Reviewed Journal)
Ma, J., Ibekwe, A.M., Crowley, D.E., Yang, C. 2014. Persistence of Escherichia coli O157 and non-O157 strains in agricultural soils. Science of the Total Environment. 490:822-829.
Real-time isothermal detection of Shiga toxin-producing Escherichia coli using recombinase polymerase amplification - (Peer Reviewed Journal)
Murinda, S.E., Ibekwe, A.M., Zulkaffly, S., Cruz, A., Park, S., Razak, N., Paudzai, F.M., Ab Samad, L., Baquir, K., Muthaiyah, K., Santiago, B., Rusli, A., Balkcom, S. 2014. Real-time isothermal detection of Shiga toxin-producing Escherichia coli using recombinase polymerase amplification. Foodborne Pathogens and Disease. 11(7):529-536.
Estimation and upscaling of dual-permeability model parameters for the transport of E.coli D21g in soils with preferential flow - (Peer Reviewed Journal)
Wang, Y., Bradford, S.A., Simunek, J. 2014. Estimation and upscaling of dual-permeability model parameters for the transport of E.coli D21g in soils with preferential flow. Journal of Contaminant Hydrology. 159:57-66.
A glimpse of Escherichia coli O157:H7 survival in soils from eastern China - (Peer Reviewed Journal)
Wang, H., Ibekwe, A.M., Ma, J., Wu, L., Lou, J., Wu, Z., Liu, R., Xu, J., Yates, S.R. 2014. A glimpse of Escherichia coli O157:H7 survival in soils from eastern China. Science of the Total Environment. 476-477:49-56.
Transport and fate of microbial pathogens in agricultural settings     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Morales, V.L., Zhang, W., Harvey, R.W., Packman, A.I., Mohanram, A., Welty, C. 2013. Transport and fate of microbial pathogens in agricultural settings. Critical Reviews in Environmental Science Technology. 43(8):775-893.
Modeling microorganism transport and survival in the subsurface - (Peer Reviewed Journal)
Bradford, S.A., Wang, Y., Kim, H., Torkzaban, S., Simunek, J. 2014. Modeling microorganism transport and survival in the subsurface. Journal of Environmental Quality. 43(2):421-440.
Potential human pathogenic bacteria in a mixed urban watershed as revealed by pyrosequencing     Reprint Icon - (Peer Reviewed Journal)
Ibekwe, A.M., Leddy, M., Murinda, S.E. 2013. Potential human pathogenic bacteria in a mixed urban watershed as revealed by pyrosequencing. PLoS One. doi:10.1371/journal.pone.0079490.
Physicochemical factors influencing the preferential transport of Escherichia coli in soils - (Peer Reviewed Journal)
Wang, Y., Bradford, S.A., Simunek, J. 2014. Physicochemical factors influencing the preferential transport of Escherichia coli in soils. Vadose Zone Journal. doi:10.2136/vzj2013.07.0120.
Assessing the diversity and composition of bacterial communities across a wetland, transition, upland gradient in Macon County Alabama     Reprint Icon - (Peer Reviewed Journal)
Shange, R., Haugabrooks, E.M., Ankumah, R.O., Ibekwe, A.M., Smith, R.C., Dowd, S. 2013. Assessing the diversity and composition of bacterial communities across a wetland, transition, upland gradient in Macon County Alabama. Diversity. 5(3):461-478.
A theoretical analysis of colloid attachment and straining in chemically heterogeneous porous media     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Torkzaban, S., Shapiro, A. 2013. A theoretical analysis of colloid attachment and straining in chemically heterogeneous porous media. Langmuir. 29:6944-6952.
Transport and fate of microorganisms in soils with preferential flow under different solution chemistry conditions     Reprint Icon - (Peer Reviewed Journal)
Wang, Y., Bradford, S.A., Simunek, J. 2013. Transport and fate of microorganisms in soils with preferential flow under different solution chemistry conditions. Water Resources Research. doi:10.1002/wrcr.20174.
Colloid interaction energies for physically and chemically heterogeneous porous media     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Torkzaban, S. 2013. Colloid interaction energies for physically and chemically heterogeneous porous media. Langmuir. 29(11):3668-3676.
Sensitivity of the transport and retention of stabilized silver nanoparticles to physicochemical factors     Reprint Icon - (Peer Reviewed Journal)
Liang, Y., Bradford, S.A., Simunek, J., Vereecken, H., Klumpp, E. 2013. Sensitivity of the transport and retention of stabilized silver nanoparticles to physicochemical factors. Water Research. 47(7):2572-2582.
Influence of bacterial communities based on 454-pyrosequencing on the survival of Escherichia coli O157:H7 in soils     Reprint Icon - (Peer Reviewed Journal)
Ma, J., Ibekwe, A.M., Yang, C., Crowley, D.E. 2013. Influence of bacterial communities based on 454-pyrosequencing on the survival of Escherichia coli O157:H7 in soils. FEMS Microbiology Ecology. 84(3):542-554.
Transport and retention of multi-walled carbon nanotubes in saturated porous media: Effects of input concentration and grain size     Reprint Icon - (Peer Reviewed Journal)
Kasel, D., Bradford, S.A., Simunek, J., Heggen, M., Vereecken, H., Klumpp, E. 2013. Transport and retention of multi-walled carbon nanotubes in saturated porous media: Effects of input concentration and grain size. Water Research. 47(2):933-944.
Persistence of Escherichia coli O157:H7 in major leafy green producing soils     Reprint Icon - (Peer Reviewed Journal)
Ma, J., Ibekwe, A.M., Crowley, D.E., Yang, C-H. 2012. Persistence of Escherichia coli O157:H7 in major leafy green producing soils. Environmental Science and Technology. 46:12154-12161.
Colloid adhesive parameters for chemical heterogeneous porous media     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Torkzaban, S. 2012. Colloid adhesive parameters for chemical heterogeneous porous media. Langmuir. 28:13643-13651.
A framework for developing research protocols for evaluation of microbial hazards and controls during production that pertain to the quality of agricultural water contacting fresh produce that may be consumed raw     Reprint Icon - (Peer Reviewed Journal)
Harris, L.J., Bihn, E.A., Bender, J., Blessington, T., Danyluk, M.D., Delaquis, P., Ibekwe, A.M., Goodridge, L., Ilic, S., Kniel, K., Lejeune, J.T., Schaffner, D., Stoeckel, D., Suslow, T. 2012. A framework for developing research protocols for evaluation of microbial hazards and controls during production that pertain to the quality of agricultural water contacting fresh produce that may be consumed raw. Journal of Food Protection. 75(12):2251-2273.
Modeling colloid and microorganism transport and release with transients in solution ionic strength     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Torkzaban, S., Kim, H., Simunek, J. 2012. Modeling colloid and microorganism transport and release with transients in solution ionic strength. Water Resources Research. doi:10.1029/2012WR012468.
Causes and implications of colloid and microorganism retention hysteresis     Reprint Icon - (Peer Reviewed Journal)
Bradford, S.A., Kim, H. 2012. Causes and implications of colloid and microorganism retention hysteresis. Journal of Contaminant Hydrology. 138-139:83-92.
Distinct soil bacterial communities revealed under a diversely managed agroecosystem     Reprint Icon - (Peer Reviewed Journal)
Shange, R.S., Ankumah, R.O., Ibekwe, A.M., Zabawa, R., Dowd, S.E. 2012. Distinct soil bacterial communities revealed under a diversely managed agroecosystem. PLoS One. 7(7):e40338. doi:10.1371/journal.pone.0040338.
Transport of ARS-labeled hydroxyapatite nanoparticles in saturated granular media is influenced by surface charge variability even in the presence of humic acid     Reprint Icon - (Peer Reviewed Journal)
Wang, D., Bradford, S.A., Harvey, R.W., Hao, X., Zhou, D. 2012. Transport of ARS-labeled hydroxyapatite nanoparticles in saturated granular media is influenced by surface charge variability even in the presence of humic acid. Journal of Hazardous Materials. 229-230:179-176.
Impacts of bridging complexation on the transport of surface-modified nanoparticles in saturated sand     Reprint Icon - (Peer Reviewed Journal)
Torkzaban, S., Wan, J., Tokunaga, T.K., Bradford, S.A. 2012. Impacts of bridging complexation on the transport of surface-modified nanoparticles in saturated sand. Journal of Contaminant Hydrology. 136-137:86-95.
Assimilable organic carbon (AOC) in soil water extracts using Vibrio Harveyi BB721 and its implication for microbial biomass     Reprint Icon - (Peer Reviewed Journal)
Ma, J., Ibekwe, A.M., Wang, H., Xu, J., Leddy, M., Yang, C., Crowley, D.E. 2012. Assimilable organic carbon (AOC) in soil water extracts using Vibrio Harveyi BB721 and its implication for microbial biomass. PLoS One. 7(5): e28519. DOI: 10.1371/journal.pone.0028519.
Humic acid facilitates the transport of ARS-labeled hydroxyapatite nanoparticles in iron oxyhydroxide-coated sand     Reprint Icon - (Peer Reviewed Journal)
Wang, D., Bradford, S.A., Harvey, R.W., Gao, B., Cang, L., Zhou, D. 2012. Humic acid facilitates the transport of ARS-labeled hydroxyapatite Nanoparticles in iron oxyhydroxide-coated sand. Environmental Science and Technology. 46:2738-2745.
Facilitated transport of copper with hydroxyapatite nanoparticles in saturated sand     Reprint Icon - (Peer Reviewed Journal)
Wang, D., Bradford, S.A., Paradelo, M., Peijnenburg, W., Zhou, D. 2011. Facilitated transport of copper with hydroxyapatite nanoparticles in saturated sand. Soil Science Society of America Journal. 76(2):375-388.
Microbiological evaluation of water quality from urban watersheds for domestic water supply improvement - (Peer Reviewed Journal)
Ibekwe, A.M., Murinda, S.E., Graves, A.K. 2011. Microbiological evaluation of water quality from urban watersheds for domestic water supply improvement. International Journal of Environmental Research and Public Health. 8:4460-4476.
Bacterial composition in sediment and surface water as indicators for pollution in a mixed watershed     Reprint Icon - (Peer Reviewed Journal)
Ibekwe, A.M., Leddy, M.B., Bold, R.M., Graves, A.K. 2011. Bacterial composition in sediment and surface water as indicators for pollution in a mixed watershed. FEMS Microbiology Ecology. 79:155-166.
Facilitated transport of Cu with hydroxyapatite nanoparticles in saturated sand: Effects of solution ionic strength and composition - (Peer Reviewed Journal)
Wang, D., Paradelo, M., Bradford, S.A., Peijnenburg, W.J., Chu, L., Zhou, D. 2011. Facilitated transport of Cu with hydroxyapatite nanoparticles in saturated sand: Effects of solution ionic strength and composition. Water Research. 45:5905-5915.
Modeling colloid transport and retention in saturated porous media under unfavorable attachment conditions - (Peer Reviewed Journal)
Bradford, S.A., Torkzaban, S., Simunek, J. 2011. Modeling colloid transport and retention in saturated porous media under unfavorable attachment conditions. Water Resources Research. 47:W10503. DOI:10.1029/2011WR010812.
Effects of Fumigants on Microbial Diversity and Persistence of E. coli O15:H7 in Contrasting Soil Microcosms - (Peer Reviewed Journal)
Ibekwe, A.M., Ma, J. 2011. Effects of Fumigants on Microbial Diversity and Persistence of E. coli O15:H7 in Contrasting Soil Microcosms. Science of the Total Environment. Available: http://www.sciencedirect.com/science/article/pii/S0048969711006589.
Last Modified: 8/19/2014
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