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Examples of batch-to-batch variability of scaffold produced manually as described: (a) 0.25 wt% CNT@PLLA with nonuniform dispersion as seen with transmission microscopy. White spots were caused by light passing through scaffold because of very low nanofiller concentration; 1 wt% CNT@PLLA with (b) valley and hill morphology or (c) variable roughness as seen by stereomicroscopy. Here, white spots are reflexes highlighting surface imperfections.
