Dr. Christie M. Sayes is a Professor at Baylor University in Waco, TX, recognized as an expert in materials chemistry, exposure science, health effects, and risk assessment.
She collaborates on safety-by-design studies for engineered substances and contaminants in pharmaceuticals, agriculture, and consumer products. Her responsibilities include validating biological models, conducting analyses, assessing toxicological modes, utilizing mass spectrometry, employing electron microscopy, applying statistical methods, and incorporating machine learning. Sayes is on Baylor’s Faculty Senate executive committee and OECD’s Working Party on Manufactured Nanomaterials. She ranks among the top 2% of most-cited researchers according to Stanford’s Elsevier Data Repository. Previously, she served as Director of Environmental Health at RTI International, was an Adjunct Professor in the UNC System, and an Assistant Professor at Texas A&M University. With over 20 years of experience, she has authored more than 220 publications. A member of SOT, ACS, and SRA, she is also an Associate Editor for Food & Chemical Toxicology. Christie earned her Ph.D. in Chemistry from Rice University in 2004, focusing on the nano-bio interface, and later worked at The DuPont Company on the Nano Risk Framework.

