Fig. 6.

Maximum peak splitting of the δ vibration. A: To measure the maximum CH₂ δ splitting, the fully protiated LPP-CH₂ samples were measured, with a peak splitting value of 10.8 cm⁻¹. B: The CD₂ maxima vibrations were measured as 7.6 cm⁻¹ using the fully deuterated dFFA sample. Samples were measured when the lipids were in the orthorhombic phase at 1°C.