Nanoscience and Nanotechnology: Evolving Definitions and Growing Footprint on the Scientific Landscape

The consensus definition of “nanotechnology” today includes many structures with no dimension <100 nm. Web of Science now adds nearly 90 000 nanotechnology articles per year, including alarming proportions of all records in subject categories within physics, chemistry, and materials science. China has surpassed the USA, and >10% of all scholarly output from several Asian countries is now nanotechnology.