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SEM images of nonmodified PLA membranes.
Notes: Quanta 450 scanning electron microscope FEI, magnification 2,000× (A), magnification 10,000× (B). Morphological parameters of PLA membranes (C). Mean ± SD from 12 SEM images (1,748 measurements in total).
Abbreviations: SEM, scanning electron microscopy; PLA, polylactide; SD, standard deviation.
