Molecular condom vs AIDS

Utah scientists have developed a liquid that turns semi solid in the presence of semen, trapping the AIDS virus. If a woman uses the liquid before sex, sperm gets trapped in a gel like structure. By the time the gel melts into liquid, the AIDS virus has died. So it’s not a sure fire contraceptive, but good for the most virulent and dangerous sexual disease. Now if they can only get it to solidify for ALL sexually transmitted diseases…

Bill Gates-funded boffins develop anti-AIDS stealth condom • The Register.