Last year around 2.3 million barrels of oil were pulled each day from tar sands in Alberta, Canada, the third largest oil reserve in the world. This mining process is hugely water-intensive, and though much of it is recycled, it still results in massive pools of polluted wastewater which are difficult to treat and pose a threat to the environment. Canadian researchers have developed a new approach to removing the contaminants using sunlight and nanoparticles, an approach they say will prove much more effective and cheaper than existing methods.
Researchers at the Technological Institute of the Lagoon (ITL), Mexico, have created a nanoparticle-rich, superconducting ink that they have used to coat pipes of solar water heaters to increase their efficiency by up to 70 percent. The new coating was recently proven on the solar heating of a Mexican city sports complex swimming pool, where 2 million cubic meters (70.6 million cubic feet) of water were heated from 26 °C to 37 °C (79 °F to 98°F).
If you've ever used tick medicine on your dog, then you're probably
aware of how toxic the stuff is. Well, it's used on cows too, and it can
end up in their meat, milk, or the surrounding environment.
Fortunately, however, scientists at the National University of Mexico
have developed a new type of tick treatment for cattle that is
reportedly much less toxic than what's currently used.
For people in developing nations or rural locations, getting clean water may soon be as simple as opening a book … and ripping a page out. That’s the idea behind The Drinkable Book, developed by Carnegie Mellon University postdoc Theresa Dankovich. Each of its pages is made from a thick sheet of paper impregnated with silver and copper nanoparticles, that kill 99.9 percent of microbes in tainted water that’s filtered through it.
Because they often have weakened immune systems and/or blood flow
restrictions, diabetics run a heightened risk of serious infection from
even the smallest of open wounds. That's why a team of scientists from
Egypt's Alexandria University have developed a means of getting those
wounds to heal faster – silver-impregnated dressings.
When blood clots form in the aftermath of a heart attack or stroke, medications can be deployed to break them apart, but delivery is tricky. Getting the medicine to the clot takes some guesswork and there's no guarantee it will arrive in the right dosage, with complications like hemorrhaging a real possibility. A team of Australian scientists has developed a new approach that sees the drugs carried safely inside a nanocapsule, opening up the treatment to more patients and lessening the chance of side effects.
Consumers may soon be able to go for longer between milk-buying trips.
That's because Brazilian company Agrindus hopes to start marketing
plastic milk bottles that use embedded silver nanoparticles to kill
bacteria. Grade A pasteurized fresh whole milk packaged in those bottles can reportedly last for up to 15 days, as opposed to the usual seven.
Nanorobots hold great potential in the field of medicine. This is
largely due to the possibility of highly-targeted delivery of medical
payloads, an outcome that could lessen side effects and negate the need
for invasive procedures. But how these microscopic particles can best
navigate the body's fluids is a huge area of focus for scientists.
Researchers are now reporting a new technique whereby nanorobots are
made to swim swiftly through the fluids like blood to reach their
The destruction of the pancreatic cells that leads to type 1 diabetes arises when the body's own immune cells identify them as foreign targets and begin to attack them. But a new technique using tiny particles to mimic the form and function of the pancreatic cells is showing promise in halting the onset of the condition.
Researchers from Vanderbilt University in Nashville, Tennessee have created the world's smallest continuous spirals. Made from gold, the spirals exhibit a set of very specific optical properties that would be difficult to fake, making them ideal for use in identity cards or other items where authenticity is paramount.