| http://www.w3.org/ns/prov#value | - The ionically crosslinkable groups on the polymer can be modified by covalently coupling a poly(alkylene glycol) such as poly(ethylene glycol), proteins, peptides, oligosaccharides, carbohydrate, lipids, nucleotide sequences or other molecules to target the microparticles to specific regions of the body or to certain cell types, or minimize tissue adhesion or uptake by the reticuloendothelial syst
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