Fig. 2: Comparison of Hahn echo filters vs spin-lock filters.
From: Interface-edited solid-state NMR to study cell interfaces
a Measurement of T2(1H) relaxation times of phospholipids and slower-relaxing components in an in vitro U-13C glucose labeled tissue sample (cells plus cell-derived extracellular matrix) grown from VSMCs with a spin echo experiment; b Measurement of T1ρ(1H) relaxation times of phospholipid and slower-relaxing 1H signals under a 30 kHz spin-lock. 1H magnetization decay curves were fitted with a bi-exponential function accounting for the phospholipid, and slower-relaxing components. c 13C Goldman-Shen CP spectra recorded using a spin echo relaxation filter for the specified echo times to select lipid proton magnetization (d) 13C Goldman-Shen spectra using a T1ρ(1H) relaxation filter for the specified lengths of time to select lipid 1H magnetization.
