Manipulation of the director in bicellar mesophases by sample spinning: a new tool for NMR spectroscopy.
It is shown that bicellar nematic liquid-crystalline phases can be oriented with the director (the normal to the bicellar plane) at an arbitrary angle to the applied magnetic field by sample rotation around one axis (variable-angle sample spinning) or around two axes successively (switched-angle spinning). This promises to open novel possibilities for NMR studies of bicelles and proteins incorporated into bicelles or dissolved in a solution containing bicelles, including the correlation of several orientations in a two-dimensional NMR experiment.
Zandomeneghi
G
G
Contribution from the Laboratory of Physical Chemistry, ETH-Zentrum, CH-8092 Zurich, Switzerland.
Tomaselli
M
M
van Beek
J D
JD
Meier
B H
BH