Fig. 6

a Schematic illustration of the experimental protocol for biocompatibility measurement. b Curve of weight change, c relative organ index, d renal function parameters and e hepatic function parameters of mouse injected with 10 mg/kg, 20 mg/kg, 40 mg/kg and saline in four days (mean ± SD, n = 6, p > 0.05). f Histopathological H&E staining of liver and kidney tissue after injection of SAP and saline