Nancy Guo, a recent Ph.D. graduate in the Walker Department of Mechanical Engineering, as been named to Forbes 30 Under 30 in the Science category.

Guo, now a post-doc at MIT, develops new polymer materials for practical, sustainable purposes. For example, nanostructured hydrogel tablets that can rapidly disinfect water or turn salt water fresh, without energy input. One tablet can disinfect a liter of river water and make it suitable for drinking in an hour or less.

See the full list of winners.