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Contact angles of AVM and AVM/SPc complex at the mass ratios of 1:1, 1:3 and 1:9. The 5 μL of various formulations (AVM concentration: 1 mg/mL; ethanol/ddH2O = 1:9) was dripped onto the glass slide, and the image of the contact angle was collected. Each treatment contained 3 independent samples. Different letters indicate significant differences (Tukey HSD test, p < 0.05).
