Livia Eberlin is an analytical chemist developing innovative mass spectrometry technologies for more efficient and accurate clinical diagnosis and surgical treatment of cancer. Evaluation of tumor margins—that is, determining the boundary between cancerous and healthy tissue—is a critical problem in cancer surgery, particularly for brain tumors where keeping as much healthy tissue intact as possible significantly impacts the patient’s future quality of life. The traditional approach to margin evaluation is microscopic analysis of biopsied tissue, a process that prolongs surgery times or requires waiting several days for test results. Livia S. Eberlin received a B.S. (2007) from the Universidade Estadual de Campinas and a Ph.D. (2012) from Purdue University. She was a postdoctoral fellow at Stanford University from 2012 to 2015, and in 2016 she joined the faculty of the University of Texas at Austin, where she is currently an assistant professor in the Department of Chemistry.