ASU Innovation Open winners tackling big, dirty industrial problems.

The two ventures were the top winners in the fourth ASU Innovation Open pitch competition at Arizona State University.

Three ASU teams reached the finals: Sensagrate, NeXST Rehab and Halen.

Carlos Navarro, a PhD student in chemistry at the University of Southern California, won the $100,000 Breakthrough Energy Ventures Prize for his business idea, Closed Composites.

More than 30% of the ventures who applied to the ASU Innovation Open are led by women.

Zero Mass Water, one of the event sponsors, is an ASU spinoff founded in 2015 by Cody Friesen, an associate professor of materials science in the Ira A. Fulton Schools of Engineering, another sponsor of the event.

Top image: Carlos Navarro, a PhD student in chemstry at the University of Southern California, reacts as he is named the winner of the Breakthrough Energy Ventures $100,000 prize at the ASU Innovation Open, held Friday at Sun Devil Stadium.