Dr. Angela Belcher, winner of the $500,000 Lemelson-MIT Prize for 2013, is a leading scientist in the field of nanotechnology. She bases her work on the idea that nature, if given the proper set of ingredients and building conditions, can create an infinite number of materials. She has developed environmentally friendly batteries and clean transportation fuel, among other inventions with both commercial and social value. Belcher is currently the W.M. Keck Professor of Energy in Materials Science and Biological Engineering at MIT and a faculty member at its Koch Institute for Integrative Cancer Research.