The ‘Best Paper of the Year’ award represents the best cutting-edge research published in the journal. The paper is selected by the journal's Editorial Board and is scored by its citations, downloads, and impact in the year.
The 2021 award was presented to Dr Kelly Fraser and colleagues for their outstanding paper "Physicochemical characterization and genotoxicity of the broad class of carbon nanotubes and nanofibers used or produced in U.S. facilities"