Fig. 3

Comparison of wall tension of two spheres with different composition but the same pressure and cumulative volume. Left panel: Tension increases as a single unit increases its volume from radius r to R, in accordance with the LaPlace equation. Right panel: In a sphere comprised of multiple such subunits, the tighter curvature of each subunit (each of radius r) as opposed to that of their encapsulating SLM (with radius R), helps subunit force balance to be achieved with less wall tension