A method of screening solution conditions suitable for the crystallization of macromolecules with a picogram to a microgram of protein using picoliter or nanoliter volumes is provided. A preferred method comprises preparing a plurality of recipe solutions in milliliter volumes, aspirating protein and...http://www.google.com.au/patents/US7244396?utm_source=gb-gplus-sharePatent US7244396 - Method for preparation of microarrays for screening of crystal growth conditions