Fig 1: Secretion of (a) TNF-alpha and (b) IL-1-beta into the culture media by RAW 264.7 cells cultured on amine-PP-coated PCL NFs, deposited at the average RF power (Pav) of 10, 33, and 150 W (labelled as CPA-10, CPA-33, and CPA-150, respectively), evaluated within 3 days of cultivation. The dots represent individual biological samples. Each dot depicts the arithmetic mean calculated from three pipetting replicates per biological sample. The bold central lines show the arithmetic mean of biological samples. LPS—a positive control of TNF-alpha and IL-1-beta secretion induced by incubation of RAW 264.7 cells with lipopolysaccharide (10 µg/mL for 24 h).