AUTHOR=van der Gucht Jasper TITLE=Grand Challenges in Soft Matter Physics JOURNAL=Frontiers in Physics VOLUME=6 YEAR=2018 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2018.00087 DOI=10.3389/fphy.2018.00087 ISSN=2296-424X