Fig. 1: A Goldman-Shen experiment can be divided into three steps for the investigation of cell glycocalyx.
From: Interface-edited solid-state NMR to study cell interfaces

i) 1H magnetization from the lipid cell membrane is selected, (ii) 1H magnetization diffuses to the extramembranous region, (iii) cross-polarization from 1H to 13C for detection of an interface-edited 13C spectrum.