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In vitro cell toxicity of different nanofiber formulations for 1, 3, and 5 days. (A) HL60, (B) U937, (C) HaCaT, and (D) HDF-α. TCPS: tissue culture polystyrene. F127/PCL: PCL/pluronic F-127 blend nanofibers. F127/PCL/VD3: 1,25(OH)2D3 loaded PCL/pluronic F-127 blend nanofibers. F127/PCL/VD3/VID400: 1,25(OH)2D3 and VID400 coloaded PCL/pluronic F-127 blend nanofibers.
