Sorter weeds out dud sperm cells
DNA damage increases the risk of infertility. Scientists have developed a machine to separate out healthy sperm from that which is damaged and unlikely to be of use in IVF.
The shoebox-sized device is based on the principle that the sperm with the most negatively charged membranes are likely to have the least DNA damage.
It filters out sperm with a type of DNA damage linked to infertility and a raised risk of childhood cancers. Details of the Australian invention are published by New Scientist magazine.
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