Assertion: starch's use | /r/HasAspect | mesoporous materials
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text: Even though the IUPAC definition of aerogel refers to material that are strictly microporous (< 2 nm), the use of the term evolved and now also encompasses mesoporous materials (2–50 nm) and is even used for macroporous ones (that would better be described as open cell foams [ 18 ], see also discussion by Gurikov and Smirnova [ 19 ]).