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Magnetite encapsulation efficiencies for PLGA and cellulose. (a) acid-terminated PLGA micro-/nanoparticles and cellulosic nanoparticles (b) ester-terminated PLGA micro- and nanoparticles. (c) encapsulation efficiencies of nanoparticles made using cellulose, acid- and ester-terminated PLGA. (d) encapsulation efficiencies of microparticles made using acid- versus ester-terminated PLGA. assayed [magnetite] = mass fraction of magnetite in wt%
