Fluid 2D layer ~5 nm thick. Area-stretch modulus K_A ≈ 0.2 J/m² (lyses at ~3 % strain), bending modulus κ from Helfrich, in-plane viscosity ~10⁻¹⁰ Pa·s·m. Treated as incompressible quasi-2D fluid with bending stiffness.
Fluid 2D layer ~5 nm thick. Area-stretch modulus K_A ≈ 0.2 J/m² (lyses at ~3 % strain), bending modulus κ from Helfrich, in-plane viscosity ~10⁻¹⁰ Pa·s·m. Treated as incompressible quasi-2D fluid with bending stiffness.