Figure 2. NMR spectra of magnetically-aligned and flipped nanodiscs.

¹⁷O (A, B, F and G), ³¹P (C and H) and ¹⁴N (D and I) NMR spectra of magnetically-aligned SMA-QA:DMPC nanodiscs obtained at 310 K with the lipid-bilayer-normal perpendicular (top row, as illustrated in E) and parallel (bottom row, as illustrated in J) to the external magnetic field direction. A 2 mM YbCl₃ was used to flip the nanodiscs (bottom row). All spectra were acquired from 20% w/v lipid concentration, except that 30% w/v was used for A and F. Deconvolution of ¹⁷O pentet spectra of aligned and flipped nanodiscs (20% and 30% w/v) are shown in Figure S1.