Adjective
English Wikipedia has an article on:nanoporousWikipedia
nanoporous (not comparable)
Having nanosized pores.
An example is the strong optical scattering by nanoporous materials. Source: Internet
The λ −4 -type scattering is caused by the nanoporous structure (a narrow pore size distribution around ~70 nm) obtained by sintering monodispersive alumina powder. Source: Internet