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Researchers from the University of Melbourne and University of Sydney are confident their new reaserach results will make significant differences to the calculations of surface tension of water used by the next generation of atmospheric scientists, biophysicists and engineers of technology like inkjet printers.
These latest investigations have clinched a long-standing controversy amongst the physical Chemistry community; the air-water interface is negatively charged by the adsorption of hydroxide ions.
Prof Angus Gray-Weale from the Chemistry, Department of Chemistry University of Melbourne said, "The surface tension of water affects its behavior and changes with pH but previous research about the adsorption of various ions at the interface all ignored the presence of the hydroxide ion and its charge."
"We now need to rewrite the text book models of surface tension for the next generation of chemists who work at the refined molecular level."
Prof James Beattie from University of Sydney said, "Previous simulations and models are now recognised as inaccurate. I would estimate many hundreds of thousands of hours of computer time have been wasted because the theoreticians have not included the charge of the hydroxide in their boundary conditions for the simulations, thereby leaving out the strongest force in the system."
Breakthrough in sizing nanoparticles using fluid-filled tubes
The functionality of nanoparticles in a host of applications, including drug delivery and nano-optics, is often dictated by their mass and size. Measuring these properties simultaneously for the same nanoparticle has also been challenging. Now scientists from the University of Melbourne and ... more
Nano-microscope gives first direct observation of the magnetic properties of 2D materials
Australian researchers and their colleagues from Russia and China have shown that it is possible to study the magnetic properties of ultrathin materials directly, via a new microscopy technique that opens the door to the discovery of more two-dimensional (2D) magnetic materials, with all so ... more
Evaluation of novel hybrid membranes for carbon capture
Carbon dioxide (CO2) capture remains a priority in many countries as the world seeks to address climate change. In particular, the most recent report from the Intergovernmental Panel on Climate Change shows that geological storage of carbon dioxide is required for all scenarios that can mee ... more
Engineers use electricity to clean up toxic water
A team of engineers may be one step closer to cleaning up heavily contaminated industrial wastewater streams. Researchers from the School of Chemical and Biomolecular Engineering developed an electrochemical oxidation process with the aim of cleaning up complex wastewater that contained a t ... more
World's smelliest fruit could charge your mobile phone
Imagine if we could use naturally-grown products, like plants and fruit, to store electricity that charges commonly used electronics like mobile phones, tablets, laptops or even electric cars? Researchers from the University of Sydney have done just that, and have developed a method that us ... more
Financial decisions influenced by intensity of light
A study of more than 2,500 people provides new evidence about the effects of luminance on the quality and consistency of our financial decision-making. Luminance is a measurement of the amount of light that falls on the earth's surface, which can be affected by cloud cover, humidity, suspen ... more
