typically least factor nanostructured materials often categorized phases matter contain ''nanocomposite'' solid containing least one physically chemically distinct region collection regions least one dimension nanoscale ''nanofoam'' liquid solid matrix filled gaseous phase one two phases dimensions nanoscale ''nanoporous material'' solid material containing nanopores voids form open closed pores sub micron lengthscales ''nanocrystalline material''
Applied science Engineering and technology Materials Science and Engineering Nanomaterials