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Biography

Dr. Ki Chang An

PTRL West, USA


Email: kahn@ptrlwest.com


Qualifications

2002 Ph.D., Chungbuk National University, Agricultural Chemistry

1996 M.S., Chungbuk National University, Agricultural Chemistry

1991 B.S., Chungbuk National University, Agricultural Chemistry


Publications (selected)

  1. Chen, J., Ahn, K.C., Gee, N.A., Ahmed, M.I., Duleba, A.J., Zhao, L., Gee, S.J., Hammock, B.D. and Lasley, B.L. (2008) The antimicrobial additive, triclocarban (TCC) amplifies native androgens in an androgen receptor mediated bioassay.Endocrinology 149, 1173-1179.
  2. Kim, H.J., González-Techera, A., González-Sapienza, G.G., Ahn, K.C., Gee, S.J. and Hammock, B.D. (2008) Phage-Borne Analyte Peptidomimetics accelerate the development of Polyclonal Antibody-Based Heterologous Immunoassays. Environ. Sci. Technol., 42, 2047-2053.
  3. Ahn, K.C., Zhao, B., Chen, J., Cherednichenko, G., Sanmarti, E., Denison, M.S., Lasley, B., Pessah, I.N., Kültz, D., Chang, D.P., Gee, S.J. and Hammock, B.D. (2008) In Vitro Biological Activities of the Antimicrobials Triclocarban, its Analogs, and Triclosan in Bioassay Screens: Receptor-Based Bioassay Screens. Environ. Health. Perspect., 116, 1203-1210.
  4. Kim, H.J., Ahn, K.C., González-Techera, A., González-Sapienza, G.G., Gee, S.J. and Hammock, B.D. (2008) Magnetic Bead-Based Phage Anti-Immunocomplex Assay (PHAIA) for the Detection of the Urinary Biomarker, 3-Phenoxybenzoic Acid to Assess Human Exposure to Pyrethroid Insecticides. Anal. Biochem.386, 45–52.
  5. Ahn, K.C., Gee, S.J., Tsai, H.J., Bennett, D., Nishioka, M.G., Blum, A., Fishman, E. and Hammock, B.D. (2009) An Immunoassay for Monitoring Environmental and Human Exposure to the Polybrominated Diphenyl Ether BDE-47. Environ. Sci. Technol., 43, 7784–7790.
  6. Kim, H.J., Rossotti, M.A., Ahn, K.C., González-Sapienza, G.G., Gee, S.J., Musker, R. and Hammock, B.D. (2010) Selection of an Immunocomplex Binding Phage-Borne Peptides and Development of the Non Competitive Phage Anti-immunocomplex Assay (PHAIA) for Brominated Diphenyl Ether 47 (BDE 47), Anal. Biochem., 401, 38-46.
  7. Baumann, A., Lohmann, W., Rose, T., Ahn, K.C., Hammock, B.D., Karst, U. and Schebb, N.H. (2010) Electrochemistry-mass spectrometry unveils the formation of reactive triclocarban (TCC) metabolites. Drug Metab. Dispos., 38, 2130-2138.
  8. Ahn, K.C., Kim, H.J., McCoy, M.R., Gee, S.J. and Hammock BD. (2011) Immunoassays and Biosensors for Monitoring Environmental and Human Exposure to Pyrethroid Insecticides. J. Agric. Food Chem., 59, 2792-2802.
  9. Schebb N.H., Inceoglu, B., Ahn, K.C., Morisseau, C., Gee, S.J. and Hammock, B.D. (2011) Investigation of human exposure to triclocarban after showering and preliminary evaluation of its biological effects. Environ Sci. Technol., 45, 3109-3115.
  10. Ye, X., Zhou, X., Furr, J., Ahn, K.C., Hammock, B.D., Gray, E.L., and Calafat, A.M.(2011) Biomarkers of exposure to triclocarban in urine and serum. Toxicology 286, 69-74.
  11. Ahn, K.C., Gee, S.J., Kim, H.J., Aronov, P.A., Vega, H., Krieger, R.I. and Hammock BD (2011). Immunochemical analysis of 3-phenoxybenzoic acid, a biomarker of forestry worker exposure to pyrethroid insecticides. Anal. Bioanal. Chem., 401, 1285-1293.
  12. Tabares-da Rosa, S., Rossotti, M., Carleiza, C., Carrión, F., Pritsch, O., Ahn, K.C., Last, J.A., Hammock, B.D. and González-Sapienza G. (2011) Competitive selection from single domain antibody libraries allows isolation of high-affinity antihapten antibodies that are not favored in the llama immune response. Anal. Chem., 83, 7213-7220.
  13. Ahn, K.C., Kasagami, T., Tsai, H.J., Schebb, N.H., Ogunyoku, T., Gee, S.J., Young, T.M. and Hammock, B.D. (2012) An immunoassay to evaluate human/environmental exposure to the antimicrobial triclocarban. Environ. Sci. Technol., 46, 374-381.
  14. Schebb, N.H., Ahn, K.C., Dong, H., Gee, S.J. and Hammock, B.D. (2012) Whole blood is the sample matrix of choice for monitoring systemic triclocarban levels.Chemosphere 87, 825-827.
  15. McCoy, M.R., Yang, Z., Fu, X., Ahn, K.C., Gee, S.J., Bom, D.C., Zhong, P., Chang, D. and Hammock, B.D.(2012) Monitoring of Total Type II Pyrethroid Pesticides in Citrus Oils and Water by Converting to a Common Product 3-Phenoxybenzoic Acid.J. Agric. Food Chem., 60, 5065-5070.


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