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been shown to align the directions of a growing crystal and sedimenting
microcrystals. The use of upward magnetic force is a second possibility
that has proved to suppress convection as well as to levitate crystals with-
out sedimenting. The way forward will be to distinguish between these
two independent actions and carefully combine the possible beneficial
effects. Further examples should be studied, especially new proteins, so as
to ultimately determine whether crystals grown in the presence of a mag-
netic field can in fact be used to obtain more accurate structures of protein
molecules.
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