AUTHOR=Lu Yiqing , Marriott Gerard , Suhling Klaus TITLE=Editorial: Modern Tools for Time-Resolved Luminescence Biosensing and Imaging JOURNAL=Frontiers in Physics VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2021.725234 DOI=10.3389/fphy.2021.725234 ISSN=2296-424X