in this respect,ceramic powder aggregates of less than 100 nm on size,bilk
metals with grain size less than 100 nm,thin polymeric films with thickness less than
100 nm,and electronic wires with diameter less than 100 nm are all considered nanoma-terials
or nanostructured materials.at the nanoscale,the properties of the material are
neither that of the molecular or atomic level nor that of the bulk material