Researchers have developed a rapid new sorting technique for sperm using a laser trap that can separate stronger, faster sperm from slower sperm. Faster sperm are more likely to successfully fertilize an egg, so the technique could improve the chances of conception via in vitro fertilization by ensuring that only the fastest, strongest sperm are used. The technique could find wide application in animal husbandry and human fertility treatments. Since X sperm generally are heavier and swim slower, while Y sperm are lighter and swim faster, it is also possible to use this new technique to separate sperm carrying the gene for a female child from sperm carrying the gene for a male child to assist with gender selection.
-
Article Source