Possibility to granulate nanpowders, like graphene platelets and graphene oxide, achieving granules with high degree of homog ... eneity which are easily redispersed (if applicable) in a liquid or disintegrated at a pressing operation. This is owing to the soft drying process giving week inter-particle bonding compare to what is obtained in conventional drying. Consequently, the nanosized material properties will be preserved, i.e. nano will still be nano. Freeze drying of granules also prevents oxidation of metals or non-oxide materials as conventional drying does not, especially critical for nanoparticles. read more