MOTILE SPERM SEPARATION BY CELLULOSE DERIVATIVES

摘要

Methods and products for separating motile sperm cells in vitro from a sperm-containing sample by means of contacting said sample with a layer of an aqueous artificial penetration medium for sperm cells, said medium haivng incorporated therein a cellulose derivative, whereby motile sperm are caused to migrate into said layer from said sperm containing sample. The process of separating motile sperm is improved if the penetration medium contains a cellulose derivative, such as a methylcellulose or a hydroxymethylcellulose. The improved medium is inexpensive compared with hyaluronic acid, yet dependable and effective.