A native of Buffalo, NY, Hossenlopp received her B.A. degree in Chemistry from Colgate University in 1981, M.A. degree in Education from Siena Heights College in 1982, and Ph.D. degree in Physical Chemistry from Syracuse University in 1987. From 1987-1989 she was a postdoctoral research associate at Columbia University. She joined the faculty at Marquette University in August 1989. In 1989 she received a Camille and Henry Dreyfus Foundation New Faculty Award, a national award given to 10 new faculty in chemistry, biochemistry, or chemical engineering departments annually.
Hossenlopp has taught physical chemistry courses at the undergraduate and graduate levels as well as general (freshman) chemistry. She was awarded Marquette University's Reverend John P. Raynor, S.J., Faculty Award for Teaching Excellence in 2003. Hossenlopp's research interests are in the area of nanomaterials. Current work in her laboratory focuses on obtaining fundamental insight into the factors that control the structure and reactivity of layered metal hydroxides with nanodimensional inter-layer galleries, as well as the development and characterization of these materials for chemical sensor, fire retardancy, and water quality applications. Her research program has received funding from the National Science Foundation, the National Institute of Standards and Technology, and the US Department of Agriculture.
In her current role, Hossenlopp oversees the work of the Graduate School and the Offices of Research Compliance and Research and Sponsored Programs. She coordinates Marquette's participation in the Clinical and Translational Science Institute of Southeastern Wisconsin as well as the regional Consortium for Health Care Economics and Innovation. She also serves as a co-investigator on a Milwaukee Area Technical College project, funded by National Science Foundation, to increase participation in the biochemical sciences.