A macroporous material is a material containing pores with diameters greater than 50 nm.
Porous materials are classified into several kinds by their size. According to IUPAC notation (see J. Rouquerol et al., "Pure & Appl. Chem", 66 (1994) 1739-1758),
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Microporous material — A microporous material is a material containing pores with diameters less than 2 nm. Porous materials are classified into several kinds by their size. According to IUPAC notation (see J. Rouquerol et al., Pure Appl. Chem, 66 (1994) 1739… … Wikipedia
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Oligonucleotide synthesis — is the chemical synthesis of relatively short fragments of nucleic acids with defined chemical structure (sequence). The technique is extremely useful in current laboratory practice because it provides a rapid and inexpensive access to custom… … Wikipedia
Porous silicon — (pSi) is a form of the chemical element silicon which has an introduced nanoporous holes in its microstructure, rendering a large surface to volume ratio in the order of 500m2/cm3. History Porous silicon was first discovered by accident in 1956… … Wikipedia
Membrane (selective barrier) — Schematic of size based membrane exclusion A membrane is a layer of material which serves as a selective barrier between two phases and remains impermeable to specific particles, molecules, or substances when exposed to the action of a driving… … Wikipedia
Adsorption — is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a film of molecules or atoms (the adsorbate). It is different from absorption, in which a substance diffuses into a liquid … Wikipedia
