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ARS Home » Northeast Area » Wyndmoor, Pennsylvania » Eastern Regional Research Center » Molecular Characterization of Foodborne Pathogens Research » People & Locations » Ly Huong Nguyen

Ly Huong Nguyen
Molecular Characterization of Foodborne Pathogens Research
Biological Science Lab Technician

Phone: (215) 836-3759
Fax: (215) 233-6581
Room 1116

600 E MERMAID LN
ERRC
WYNDMOOR, PA 190388598

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
The complex multicellular morphology of the food spoilage bacteria Brochothrix thermosphacta strains isolated from ground chicken Reprint Icon - (Peer Reviewed Journal)
Chen, C., Nguyen, L.T., Paoli, G., Irwin, P. 2020. The complex multicellular morphology of the food spoilage bacteria Brochothrix thermosphacta strains isolated from ground chicken. Canadian Journal of Microbiology. 66(4):303-312.
Isolation and characterization of two novel groups of Kanamycin-resistance ColE1-like plasmids in Salmonella enterica serotypes from food animals Reprint Icon - (Peer Reviewed Journal)
Chen, C., Strobaugh Jr, T.P., Nguyen, L.T., Abley, M.J., Lindsey, R.L., Jackson, C.R. 2018. Isolation and characterization of two novel groups of Kanamycin-resistance ColE1-like plasmids in Salmonella enterica serotypes from food animals. PLoS One. https://doi.org/10.1371/journal.pone.0193435.
Complete genome sequences of two strains of the meat spoilage bacterium Brochothrix thermosphacta isolated from ground chicken Reprint Icon - (Peer Reviewed Journal)
Paoli, G., Wijey, C., Nguyen, L.T., Chen, C., Yan, X., Irwin, P.L. 2017. Complete genome sequences of two strains of the meat spoilage bacterium Brochothrix thermosphacta isolated from ground chicken. Genome Announcements. 5:47. 10.1128/genomeA.01357-17.
Influence of tra genes of IncP and F plasmids on the mobilization of small Kanamycin resistance ColE1-Like plasmids in bacterial biofilms - (Abstract Only)
Chen, C., Nguyen, L.T. 2017. Influence of tra genes of IncP and F plasmids on the mobilization of small Kanamycin resistance ColE1-Like plasmids in bacterial biofilms. American Society for Microbiology Annual Meeting. p.1.
Gene duplication and promoter mutation expand the range csgD-dependent biofilm responses in a STEC population - (Peer Reviewed Journal)
Uhlich, G.A., Chen, C., Cottrell, B.J., Andreozzi, E., Irwin, P.L., Nguyen, L.T. 2017. Gene duplication and promoter mutation expand the range csgD-dependent biofilm responses in a STEC population. Microbiology. 163:611-621.
Stx1 prophage excision in Escherichia coli strain PA20 confers strong curli and biofilm formation by restoring native mlrA Reprint Icon - (Peer Reviewed Journal)
Uhlich, G.A., Chen, C., Cottrell, B.J., Yan, X., Hofmann, C.S., Nguyen, L.T. 2016. Stx1 prophage excision in Escherichia coli strain PA20 confers strong curli and biofilm formation by restoring native mlrA. FEMS Microbiology Letters. doi: 10.1093/femsle/fnw123.
Multiple mechanisms responsible for strong Congo red-binding variants of Escherichia coli O157:H7 strains - (Peer Reviewed Journal)
Chen, C., Nguyen, L.T., Cottrell, B.J., Irwin, P.L., Uhlich, G.A. 2015. Multiple mechanisms responsible for strong Congo red-binding variants of Escherichia coli O157:H7 strains. Pathogens and Disease. 74:123.
Mobilization properties of small ColE1-like plasmids carrying kanamycin resistance gene isolated from Salmonella enterica serotypes - (Abstract Only)
Chen, C., Nguyen, L.T. 2015. Mobilization properties of small ColE1-like plasmids carrying kanamycin resistance gene isolated from Salmonella enterica serotypes. Meeting Abstract. meeting abstract.
Near-quantitative extraction of genomic DNA from various food-borne eubacteria - (Peer Reviewed Journal)
Irwin, P.L., Nguyen, L.T., He, Y., Paoli, G., Gehring, A.G., Chen, C. 2014. Near-quantitative extraction of genomic DNA from various food-borne eubacteria. BMC Microbiology. DOI: 10.1186/s12866-014-0326-z.
Rapid identification and classification of Campylobacter spp. using laser optical scattering technology Reprint Icon - (Peer Reviewed Journal)
He, Y., Reed, S.A., Bhunia, A.K., Gehring, A.G., Nguyen, L.T., Irwin, P.L. 2015. Rapid identification and classification of Campylobacter spp. using laser optical scattering technology. Food Microbiology. 47:28-35.
Variability in DNA polymerase efficiency: effects of random error, DNA extraction method, and isolate type - (Peer Reviewed Journal)
Irwin, P.L., Nguyen, L.T., Chen, C., He, Y. 2014. Variability in DNA polymerase efficiency: effects of random error, DNA extraction method, and isolate type. JSM Mathematics & Statistics. 1(1):1003.
Growth media and temperature effects on biofilm formation by serotype O157:H7 and non-O157 Shiga toxin-producing Escherichia coli Reprint Icon - (Peer Reviewed Journal)
Uhlich, G.A., Chen, C., Cottrell, B.J., Nguyen, L.T. 2014. Growth media and temperature effects on biofilm formation by serotype O157:H7 and non-O157 Shiga toxin-producing Escherichia coli. FEMS Microbiology Letters. 354:133-141.
Media composition and incubation temperature affect Congo red dye affinity of Shiga toxin-producing Escherichia coli - (Abstract Only)
Uhlich, G.A., Chen, C., Cottrell, B.J., Nguyen, L.T. 2014. Media composition and incubation temperature affect Congo red dye affinity of Shiga toxin-producing Escherichia coli. Meeting Abstract. MA.
Characterization and distribution of ColE1-like kanamycin-resistance plasmids in Salmonella enterica from food animals - (Abstract Only)
Chen, C., Strobaugh Jr, T.P., Nguyen, L.T., Abley, M., Lindsey, R.L., Cray, P.J. 2014. Characterization and distribution of ColE1-like kanamycin-resistance plasmids in Salmonella enterica from food animals. Meeting Abstract.
Phenotypic and genotypic characterization of biofilm forming capability in non-O157 Shiga toxin-producing Escherichia coli strains - (Peer Reviewed Journal)
Chen, C., Hofmann, C.S., Cottrell, B.J., Strobaugh Jr, T.P., Paoli, G., Nguyen, L.T., Yan, X., Uhlich, G.A. 2013. Phenotypic and genotypic characterization of biofilm forming capability in non-O157 Shiga toxin-producing Escherichia coli strains. PLoS One. 8(12):e84863.
Phage insertion in mlrA and variations in rpoS limit curli expression and biofilm formation in Escherichia coli serotype O157:H7 - (Peer Reviewed Journal)
Uhlich, G.A., Chen, C., Cottrell, B.J., Hofmann, C.S., Dudley, E., Strobaugh Jr, T.P., Nguyen, L.T. 2013. Phage insertion in mlrA and variations in rpoS limit curli expression and biofilm formation in Escherichia coli serotype O157:H7. Microbiology. 159:1586-1596.
Mutations in the rpoS gene are the major limiting factor for biofilm formation in Escherichia coli serotype O157:H7 clinical isolates - (Abstract Only)
Chen, C., Uhlich, G.A., Strobaugh Jr, T.P., Cottrell, B.J., Dudley, E.G., Hofmann, C.S., Nguyen, L.T. 2013. Mutations in the rpoS gene are the major limiting factor for biofilm formation in Escherichia coli serotype O157:H7 clinical isolates. Meeting Abstract. MA.
Non-stochastic sampling error in quantal analyses for Campylobacter species on poultry products Reprint Icon - (Peer Reviewed Journal)
Irwin, P.L., Reed, S.A., Brewster, J.D., Nguyen, L.T., He, Y. 2013. Non-stochastic sampling error in quantal analyses for Campylobacter species on poultry products. Analytical and Bioanalytical Chemistry. 405(7):2353-2369.
A method for correcting standard-based real-time PCR DNA quantitation when the standard's polymerase reaction efficiency is significantly different from that of the unknown's - (Peer Reviewed Journal)
Irwin, P.L., Nguyen, L.T., Chen, C., Uhlich, G.A., Paoli, G. 2012. A method for correcting standard-based real-time PCR DNA quantitation when the standard's polymerase reaction efficiency is significantly different from that of the unknown's. Analytical and Bioanalytical Chemistry. 402:2713-2725.
Antimicrobial activity of spherical silver nanoparticles: evidence for induction of a prolonged bacterial lag phase - (Abstract Only)
Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase - (Peer Reviewed Journal)
Irwin, P.L., Martin, J., Nguyen, L.T., He, Y., Gehring, A.G., Chen, C. 2010. Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase. Journal of Nanobiotechnology (Biomed Central Open Access). 34:1-12.
A POPULATION STUDY OF E. COLI DOUBLING TIMES: EVIDENCE OF AN ANOMALOUS BIMODAL DISTRIBUTION BELOW A THRESHOLD CELL CONCENTRATION - (Peer Reviewed Journal)
Irwin, P.L., Paoli, G., Chen, C., Nguyen, L.T. 2010. A POPULATION STUDY OF E. COLI DOUBLING TIMES: EVIDENCE OF AN ANOMALOUS BIMODAL DISTRIBUTION BELOW A THRESHOLD CELL CONCENTRATION. BMC Microbiology. 10:207.
The relationship between purely stochastic sampling error and the number of technical replicates used to estimate concentration at an extreme dilution - (Peer Reviewed Journal)
Irwin, P.L., Nguyen, L.T., Chen, C. 2010. The relationship between purely stochastic sampling error and the number of technical replicates used to estimate concentration at an extreme dilution. Analytical and Bioanalytical Chemistry. DOI:10.1007/s00216-010-3967-2
Binding of non-target microorganisms from food washes to anti-Salmonella and anti-E. coli O157 immuno-magnetic beads: minimizing the errors of random sampling in extreme dilute systems - (Peer Reviewed Journal)
Irwin, P.L., Nguyen, L.T., Chen, C. 2008. Binding of non-target microorganisms from food washes to anti-Salmonella and anti-E. coli O157 immuno-magnetic beads: minimizing the errors of random sampling in extreme dilute systems. Analytical and Bioanalytical Chemistry. 391:515-524.