The research team who developed this material thinks weight can be reduced by up to 5-10 times.
– It might look like any old 18-carat nugget of gold, but it hides a secret. Produced in the lab, this shiny disc weighs just a fraction of what it should, and has other interesting properties to boot.
Replacing the metal alloys usually mixed with gold to lighten the weight and reduce the density could have benefits beyond jewellery as well, in fields such as chemistry, electronics, and radiation shielding. To achieve these results, the scientists mixed gold nanocrystals, protein fibres, and a polymer latex with water and salt to create a gel, before replacing the water with alcohol. When put into a high pressure CO2 chamber, the alcohol reacts with carbon dioxide, producing a gossamer-like aerogel.
"This new 18-carat gold can fill a niche which is currently unoccupied in the realm of industrially relevant gold blends and open the way to unexplored applications," write the researchers in their paper.
پاکستان تازہ ترین خبریں, پاکستان عنوانات
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