This invention relates to methods, apparatus and solutions for cryopreserving microscopic biological materials for biologically extended periods of time. The method comprises treating a suspension of biological material, in an appropriate buffer, with a cryoprotectant or combination of cryoprotectants...http://www.google.es/patents/US6194136?utm_source=gb-gplus-sharePatente US6194136 - Cryoprotective solutions comprising DMSO, PG, 2,3-butanediol,raffinose and PVP
Cryoprotective solutions comprising DMSO, PG, 2,3-butanediol,raffinose and PVP
