As a child, Dr. Sangeeta Bhatia's parents didn't ask her what she wanted to be when she grew up. Instead, her father would ask, "Are you going to be a doctor? Are you going to be an engineer? Or are you going to be an entrepreneur?"

Little did he know that she would successfully become all three: an award-winning biomedical and mechanical engineer who performs cutting-edge medical research and has started multiple companies.

Bhatia holds an M.D. from Harvard University, an M.S. in mechanical engineering from MIT, and a PhD in biomedical engineering from MIT. Bhatia, a Wilson professor of engineering at MIT, is currently serving as director of the Marble Center for Cancer Nanomedicine, where she's working on nanotechnology targeting enzymes in cancer cells. This would allow cancer screenings to be done with a simple urine test.

Bhatia owes much of her impressive career to her family. Her parents were refugees who met in graduate school in India; in fact, she says her mom was the first woman to earn an MBA in the country. The couple immigrated to the U.S. in the 1960s, started a family, and worked hard to give their two daughters the best opportunities.

"They made enormous sacrifices to pick a town with great public schools and really push us to excel the whole way," Bhatia says. "They really believed in us, but they expected excellence. The story I like to tell about my dad is like, if you brought home a 96 on a math test, the response would be, 'What'd you get wrong?'"