Fig. 4From: Study on the interaction of paeoniflorin with human serum albumin (HSA) by spectroscopic and molecular docking techniquesAbsorption spectra of paeoniflorin alone (a) and HSA in the presence of different concentrations of paeoniflorin (b–g); Inset: comparison of the absorption values at 280 nm between the HSA–paeoniflorin mixed solutions and the sum values of free HSA and free paeoniflorin, a: [paeoniflorin] = 1.0 × 10−5 mol L−1; b–g: [HSA] = 1.0 × 10−5 mol L−1, [paeoniflorin] = 0, 1.0, 2.0, 3.0, 4.0, 5.0 × 10−5 mol L−1 Back to article page