People become engineers because they have a passion for creating knowledge and technologies that serve society. UVA Engineering's "For Good" series shares the voices of future engineering leaders who are determined to devote their lives and careers to shaping a better world. Biomedical engineering Ph.D. candidate Samantha Perez is devoting her research to making better drugs to fight cancer, and ensuring those drugs are accessible to all who need them. Her Ph.D. advisor is Kimberly Kelly, professor of biomedical engineering.