“…Notably, as the concentration of CuO and curcumin in the PAN solution increases, the mixture's viscosity rises, posing challenges in the manufacturing process of nanofibers. [38][39][40][41][42][43][44][45] For understanding purposes, PAN was represented as sample P, the PAN/CuO samples were named PC74, PC76, and PC78, and the PAN/CuO/curcumin samples were named PCC7404, PCC7406, PCC7408, PCC7604, PCC7606, PCC7608, PCC7804, PCC7806, and PCC7808.…”