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Technology update

Apr 11, 2007

"Nano-gas" state makes its debut

A long-lasting nanoscale gas state has been observed for the first time by engineers in Australia. William Ducker and Xuehua Zhang of the University of Melbourne have observed very thin bubbles of carbon dioxide gas measuring around 10 nm at the interface between a hydrophobic solid and water under ambient conditions. The team has also found evidence for nanobubbles of air. The results not only settle a long-standing debate over whether a stable nano-gas state phase could exist, they might also be put to good use in a diverse range of applications in industry. These include reducing the friction force when pumping liquids through pipes and stabilizing emulsions like paint or salad dressing.

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