A<unk>  is a<unk>  containing pores with diameters less than 2 nm. Examples of<unk> s include zeolites and metal-organic frameworks. Porous<unk> s are classified into several kinds by their size. The recommendations of a panel convened by the International Union of Pure and Applied Chemistry (IUPAC) are:<unk> s have pore diameters of less than 2 nm. *Mesoporous<unk> s have pore diameters between 2 nm and 50 nm. *Macroporous<unk> s have pore diameters of greater than 50 nm. Micropores may be defined differently in other contexts. For example, in the context of porous aggregations such as soil, micropores are defined as cavities with sizes less than 30 μm.
Microporous material
Biomaterial
Graft 
Bioceramic
Permanent makeup
Reinforced lipids
Biomedical tissue
Mold