
Keywords: ELISA; enzyme-linked immunosorbent assay; PDGF; platelet-derived growth factor; TNF; tumor necrosis factor; SATA; N-succinimidyl S-acetylthioacetate; SMCC; succinimidyl 4-[N-maleimidomethyl] cyclohexane-1-carboxylate; PBST; phosphate buffered saline-tween