He teaches courses in biochemistry, endocrinology, plant physiology and general biology. He also teaches a science core course entitled "God & Modern Biology", which examines various topics in science and religion. His scholarship has been published in leading scientific journals including the Journal of Biological Chemistry, Journal of Cellular Biochemistry, and the Journal of Inorganic Biochemistry. Dr. Sauer is very active in the interdisciplinary field of Science and Religion. He was recently awarded a grant from the John Templeton Foundation to develop science and religion educational programs for Catholic schools and parishes in the Diocese of Bridgeport. Dr. Sauer has served in leadership positions across campus, as the chair of Biology (2004 -2010) and associate academic chair of the Ignatian Residential College.