Hi Histonetters, I need some advice as my group is tasked to procure tissue from surgery sites off-campus. Logistics within those other hospitals do not allow a liquid nitrogen source, and my health and safety folks have asked us to consider using a "Dry Shippers" or cryoport for snap freezing. Does anyone do this? We are concerned that the vapor alone would be insufficient to preserve RNA, DNA, and morphology. We currently use a dewar for liquid nitrogen preservation, but it does not involve the whole 'transport issue'. Research or hospital perspectives are welcome. Thanks in advance and have a good week. Hugh Cancer research center of Hawaii _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet