How Australian Grass Is Going to Make Condoms Better
Researchers at the University of Queensland have made a cool new discovery in the quest for better condoms. It turns out a component of
Spinifex is common in Australia and the Middle East. Its hardy bushes keep sand dunes in place, stabilizing coastlines. Its tough resins once helped aboriginal Australians stick the spear heads to their spears. And now its fibers are going to help reduce the thickness of condoms. According to the Queensland researchers, adding the nanocellulose produced by spinifex to condoms will allow them to be made thinner than ever.
The process starts by harvesting the grass and pulping it, adding a little lye to help break it down. Once the grass is pulped, it's forced through a tiny opening. This rips the gross pulp fibers away, leaving behind nanocellulose. The substance is water-soluble so it can be added to latex without any trouble.
Once it's in latex, nanocellulose toughens the material. The resulting condoms can withstand up to 20 percent more pressure and can expand 40 percent more than regular condoms. Since regular condoms already meet safety standards, the researchers aren't interested in making them tougher, so much as making them just as tough-but thinner. Their first attempt at manufacturing the condoms resulted in rubbers 45 microns thick. Average condoms tend to hover between 60 and 70 microns , although "ultra-thin" ones can get down to just 20 microns .
The Queensland team wants to protect your health in other ways as well. There's talk of making thinner surgical gloves, which allow doctors to perform more sensitive operations with less finger fatigue. But their major focus right now is more crotch than hand. Soon, society might be feeling the benefits in multiple ways. The researchers hope that this will make condom use during sex more desirable-and lead to lower rates of HIV and other STDs around the world.
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