RTI uses cookies to offer you the best experience online. By clicking “accept” on this website, you opt in and you agree to the use of cookies. If you would like to know more about how RTI uses cookies and how to manage them please view our Privacy Policy here. You can “opt out” or change your mind by visiting: http://optout.aboutads.info/. Click “accept” to agree.

Headshot of Gabriel Knudsen

Gabriel A. Knudsen

Senior Research Chemist


PhD, Medical Pharmacology, University of Arizona
MS, Pharmacology, University of Michigan
BS, Environmental Chemistry, Kettering University


Gabriel Knudsen is a senior research chemist in the Analytical Chemistry and Pharmaceutics Group within Discovery Sciences at RTI. He studies the absorption, distribution, metabolism, and excretion (ADME) of xenobiotics in mammals for industrial clients and for the National Toxicology Program (NTP), as well as for other branches of the National Institutes of Health (NIH). Dr. Knudsen’s research has been published in more than 30 peer-reviewed journals focusing on drug metabolism and biochemical toxicology.

Before joining RTI in 2023, Dr. Knudsen was a senior scientist at BASF, where he developed novel assays to conduct ADME assessments of lead candidates for pesticide applications by using novel and representative invertebrate systems. He also previously worked at the NIH conducting disposition and toxicology studies of nominated chemicals, with a focus on per- and polyfluoroalkyl substances (PFAS) and brominated flame retardants and their effects in barrier tissues, especially the blood-brain barrier and blood-placenta barrier.

Get in Touch

To speak to this expert or inquire about RTI services, you can reach us at +1 919 541 6000 or use the contact form below. For media inquiries, please reach out to our Media Relations team at news@rti.org.

Blue background circle graphics