Sumita Basu Mitra (born 1949) is an Indian-American inventor who is a professor at the University of South Florida.
She joined Case Western Reserve University as a postdoctoral fellow in polymer chemistry.
[4] In 1978, Mitra joined 3M, where she worked as a senior chemist focusing on materials for health care.
[6] At the time, dentists performed tooth repairs using a combination of two different materials, microfills and microhybrid composites.
[7] Nanoparticles ('nanomeric filler particles') within these materials imitate the natural enamel of teeth, which allow them to remain glossy and strong.