Porous material with a biocompatible outer surface and a retentive interior surface.
Notes: - Access to the retentive interior surface is restricted for macromolecules by a physical or chemical diffusion barrier that facilitates elution of macromolecules and extraction of low-mass compounds.
- The restricted access barrier can be accomplished by size exclusion, differential partitioning, or other phenomenon.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 544 (https://doi.org/10.1515/pac-2015-0903)