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Core-shell MPs temporally modulate protein sequestration. Protein pull-down studies with growth factors (A) SDF-1α and (B) BMP-2. Graphs show percent of protein remaining in solution (i.e. percentage of protein not sequestered by MPs) normalized to soluble protein controls. (*=significantly different from heparin MP group, **=significantly different from degradable core-shell; p<0.05, n≥3).
