(a) w of the vesicle with the C₆₀ concentration of 4.6% at equilibrium. The first vesicle is the initial spherical one. The second and third ones are under the vertical pressures of 8p₀ and 20p₀, respectively. Color code as used in Fig. 1. Water and carbohydrate tails of lipids are not shown for clarity. (b) The relation between the geometric parameter R of the vesicle with different C₆₀ concentrations and the vertical pressure. The vertical pressure p is scaled by ambient pressure p₀, and R is normalized by the radius of the initial vesicle R₀. (c) Dependence of the bending modulus of DPPC bilayer on the C₆₀ concentration. (d) Dependence of the spontaneous curvature of DPPC bilayer on the C₆₀ concentration. In (c) and (d), symbols are the results from our simulations, and solid lines indicate linear fitting with the equations aside.