University of Wisconsin–Madison

Assay Services Staff

Hemanta K. Shrestha, Ph.D.

Senior Research Specialist

Hemanta K. Shrestha joined Assay Services in September 2011. He had his Bachelor in Veterinary Science (B. V. Sc.; equivalent to D. V. M.) degree from Tamilnadu Veterinary and Animal Sciences University, Chennai, India in 1992. He did M. Sc. in Tropical Veterinary Science at Edinburgh University, UK in 1997 and earned a Ph. D. in Animal Reproduction from Hiroshima University, Japan in 2004. After a short postdoctoral training at Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Japan, he moved to the USA. In the USA, he has worked as a research scientist in the Department of Dairy Science and as honorary fellow in the Department of Pathobiology, University of Wisconsin-Madison from 2007 to 2011. His research was in the areas of reproductive physiology and endocrinology with a focus on ovarian function including luteolysis. He is interested in studying ovarian physiology. Hemanta’s role in the Assay Services unit is developing, validating and conducting radio-immunoassays including radioiodination of proteins and peptides. Hemanta likes to spend time with family and friends.

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Toni E. Ziegler, Ph.D.

Distinguished Scientist

Toni has been a member of Assay Services sine 1994 when she became the Co-Director of Assay Services. She has been the Director of Assay Services since 2005. Toni received her PhD from Texas A&M University and came to Madison for postdoctoral work in the Department of Psychology and with the Wisconsin National Primate Research Center. Toni implemented the HPLC based methods for Assay Service, along with Dan Wittwer the fecal steroid analyses methods and many urinary assays. She continues to develop new assays and preparation procedures for peptides, proteins and steroids. Toni consults on method development and customizing analyses for individual species and biomatrix. Toni enjoys traveling, gardening, cooking and spending time with family and friends.

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Amita Kapoor, Ph.D.

Assistant Scientist

Amita Kapoor joined Assay Services in September 2011. She completed her bachelor’s degree in Biology and Psychology at the University of Toronto in 2002. Amita earned her Ph.D. in physiology at the University of Toronto in 2008. Following graduate training, Amita completed a short postdoctoral fellowship at the University of Toronto and then moved to the University of Wisconsin-Madison in 2009 to continue postdoctoral training at the Harlow Primate Laboratory. Amita’s research interests lie in understanding the relationship between hormone exposure during pregnancy and how exposure affects hormone and behaviors during the postnatal period. She has a particular emphasis on using non-invasive measures to assess this relationship. Outside work, Amita enjoys traveling, cooking and spending time with family and friends.

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Cody James M. Corbett

Research Specialist

Cody has been a member of Assay Services since 2015. He earned his B.S. degree in Broad Fields Natural Science with Concentration in Geoscience from Edgewood College in 2012. Cody’s focus in Assay Services is safety, creating standard operating procedures and conducting immunoassays, particularly in-house enzyme immunoassays. Cody has been working in labs since 2004. His background includes dairy science from working for Land O’Lakes and human blood from his time at the American Red Cross. He specializes in assays utilizing serum, plasma and urine. Cody enjoys collecting license plates, biking, road trips, and cooking.

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