Table 1.

Trapping stiffnesses of GUVs containing sucrose or iodixanol in different concentrations, membrane-coated beads, and polystyrene beads

	GUV	GUV	GUV	GUV	Membrane-coated bead	Polystyrene bead
	0.5 M sucrose	1 M sucrose	30% iodixanol	55% iodixanol
Diameter (μm)	2.5–3.5	2.5–3.5	2.5–3.5	2.5–3.5	2.06	2.17
Trapping stiffness (pN/nm)	0.025 ± 0.005 (N = 15)	0.045 ± 0.006 (N = 16)	0.083 ± 0.005 (N = 21)	0.113 ± 0.006 (N = 22)	0.162 ± 0.006 (N = 29)	0.244 ± 0.006 (N = 29)

The number N in parentheses represents the number of GUVs or beads tested. The errors indicate the standard error of the mean.