A group of scientists in China are in the early stages of developing a reversible male contraceptive.
It is only being used so far on experimental animals. In the experiments with rats, the method successfully kept sexually active males from impregnating females for more than two months.
Naked Scientist, Chris Smith explains.
A group of researchers has published a chemical technique where they inject a substance into the tube which sperm would normally travel along.
What a series of chemicals that form layers and actually they say they were inspired, when they came up with the idea, by looking at a cocktail....basically a tequila sunrise, where you have a series of different layers, where the liquids are at different densities means that you can stack up different chemicals along a glass.— Chris Smith, Naked Scientist
He says they have put in a jelly-like substance that stops sperm moving through the tube.
Next door to that they have put in another substance which has got these tiny particles of gold in it called gold nanoparticles which are very good at absorbing heat from infrared, then next to that they have put a solution that can dissolve the jelly-like substance...— Chris Smith, Naked Scientist
When you inject that sequence, the tube is blocked. And in rats - when they do this - the rats cannot father children...— Chris Smith, Naked Scientist
So the idea is this would be a neat way of where the single injection doing the same effective form of contraception as a vasectomy but you don't have to go through a potentially irreversible procedure.— Chris Smith, Naked Scientist
Click on the link below to hear more about the experiment....
This article first appeared on 702 : [LISTEN] Scientists develop new potential male contraceptive technique