Rapid freezing versus slow programmable freezing of human spermatozoa Teraporn Vutyavanich, M.D., Waraporn Piromlertamorn, M.Sc., Siriporn Nunta, B.Sc. Fertility and Sterility Volume 93, Issue 6, Pages 1921-1928 (April 2010) DOI: 10.1016/j.fertnstert.2008.04.076 Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions
Figure 1 (A) A solid aluminum block immersed in liquid nitrogen. (B) A straw was inserted into a hole in the precooled aluminum block. Fertility and Sterility 2010 93, 1921-1928DOI: (10.1016/j.fertnstert.2008.04.076) Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions
Figure 2 Changes in temperature inside a straw, which had been inserted into a hole inside a precooled aluminum block that was previously immersed in liquid nitrogen. Fertility and Sterility 2010 93, 1921-1928DOI: (10.1016/j.fertnstert.2008.04.076) Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions