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Morphological analysis of silk fibroin films. SEM images of aq, FA, and HFIP films without and with annealing conditions. Representative 3D view and line profiles of aq, FA, and HFIP pristine films are obtained through ImageJ processing. Particulate matter can be seen in the aq film, pits can be seen in the FA film, and the HFIP film was relatively without any artifacts.
