The role of crystal polarity in alpha-amino acid crystals for induced nucleation of ice.

@article{Gavish1992TheRO,
  title={The role of crystal polarity in alpha-amino acid crystals for induced nucleation of ice.},
  author={Moshe Gavish and John Chia-chin Wang and Miriam Eisenstein and Meir Lahav and Leslie Leiserowitz},
  journal={Science},
  year={1992},
  volume={256 5058},
  pages={815-8}
}
The hydrophobic faces of single crystals of a series of pairs of racemic and chiral-resolved hydrophobic alpha-amino acids were used as a substrate, onto which water vapor has been cooled to freezing. The morphologies and molecular packing arrangements within each crystal pair are similar but only one of each pair exhibits a polar axis, parallel to the hydrophobic face exposed to water. Those crystals that have a polar axis induce a freezing point higher by 4 degrees to 5 degrees C than the… CONTINUE READING

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