Figure 3. Z-Average diameter of FEN’s particle size during wet media milling as function of time: (+) FEN/mannitol 0.5 Figure 3. Z-Average diameter of FEN’s particle size during wet media milling as function of time: (+) FEN/mannitol 0.5 w / w , (0) FEN/mannitol 1 w / w , ( − ) FEN/mannitol 2 w / w .