AUTHOR=Xiao Yufen , Chen Jun , Wang Chao , Ding Jianxun , Tao Wei TITLE=Editorial: Emerging Micro- and Nanotechnologies for Medical and Pharmacological Applications JOURNAL=Frontiers in Pharmacology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2021.648749 DOI=10.3389/fphar.2021.648749 ISSN=1663-9812