Dr. Porter is a professor in the department of Zoology has been studying low-level contaminant/pesticide mixtures at environmentally relevant concentrations that affect/alter developmental processes, neurological function (learning abilities and aggression levels), immune function, and endocrine function for more than 25 years. He is also interested in the process of infection and the biochemical responses to bacterial and viral infections. He is a co-founder of Isomark, LLC, that uses naturally occurring stable isotopes in breath for early detection of infection.