AUTHOR=Heermann Dieter W. TITLE=Chief Editor's Commentary on “Light Based Cellular Interactions: hypotheses and perspectives” JOURNAL=Frontiers in Physics VOLUME=3 YEAR=2015 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2015.00056 DOI=10.3389/fphy.2015.00056 ISSN=2296-424X