AUTHOR=Spirk Stefan , Nypelö Tiina , Kontturi Eero TITLE=Editorial: Biopolymer Thin Films and Coatings JOURNAL=Frontiers in Chemistry VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00736 DOI=10.3389/fchem.2019.00736 ISSN=2296-2646