Eksittikul, T Binding of spermatozoa to positively charged beads as an inexpensive method to isolate sperm heads and tails. [electronic resource] - International journal of andrology Dec 1980 - 643-53 p. digital Publication Type: Journal Article ISSN: 0105-6263 Standard No.: 10.1111/j.1365-2605.1980.tb00152.x doi Subjects--Topical Terms: AnimalsCation Exchange ResinsCell Fractionation--methodsMaleOctoxynolPolyethylene GlycolsRatsSodium Dodecyl SulfateSperm Head--ultrastructureSperm Tail--ultrastructureSpermatozoa--ultrastructureTrypsin