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(a) HRTEM, (b) HAADF-STEM, and (c) ABF-STEM images of the (γ-Fe2O3/PLGA)/CS nanocomposites; EDX mapping analysis of the (d) Fe and (e) N elements of the sample in (b,c). Bar lengths: 100 nm. The arrows in (a) mark the γ-Fe2O3 cores inside the polymeric structure.
