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Hydrophobic

— Science

Reusable oil-absorbing nanosponges could soak up oil spills

By - April 17, 2012 4 Pictures
Last week we looked at the development of “hydrate-phobic” surfaces that could assist in the containment of oil leaks in deep water. Now, by adding boron to carbon while growing nanotubes, researchers have developed a nanosponge with the ability to absorb oil spilled in water. Remarkably, the material is able to achieve this feat repeatedly and is also electrically conductive and can be manipulated with magnets. Read More
— Science

“Hydrate-phobic” surface coatings to keep oil and gas pipes flowing

By - April 11, 2012 1 Picture
As the world’s appetite for oil and gas continues to increase while access to easily accessible reserves decreases, deep-sea oil and gas wells are being positioned in ever-deeper waters. The dangers and difficulties faced in such operations were highlighted in 2010 with the Deepwater Horizon oil spill. While placing a containment dome over a leak and piping the oil to a surface storage vessel had worked on leaks in shallower water, the attempt to do the same on the Deepwater Horizon’s largest leak failed when the formation of methane hydrate crystals blocked the opening at the top of the dome. Now researchers at MIT have developed surface coatings that can inhibit the buildup of these methane hydrates and keep the gas and oil flowing. Read More
— Health and Wellbeing

Material implants slowly release medicine over period of months

By - February 2, 2012 1 Picture
Scientists have developed a new material that can slowly release medication over a period of several months. It's hoped that the "superhydrophobic material" may one day lead to implants that would assist in the treatment of chronic pain, and in the prevention of recurring cancer tumors, by gradually releasing medication over a period of months. The team of scientists is now planning in vivo experiments to gauge the effectiveness of the material in living organisms. Read More
— Mobile Technology

Liquipel nanocoating adds invisible waterproof coating to mobile devices

By - January 12, 2012 2 Pictures
We all know that water and mobile electronic devices aren’t a good mix. But living on a world whose surface is around 70 percent water can sometimes make it hard to keep the two separate. While wrapping your device in a waterproof case will provide protection, they add bulk and can sometimes affect usability. California-based company Liquipel claims to have developed a hydrophobic nanocoating one thousand times thinner than a human hair that can be applied to a smartphone to protect it from accidental spills without affecting its functionality. Read More
— Science

Floating weed inspires high-tech waterproof coating

By - November 14, 2011 4 Pictures
It may be an invasive weed that’s fouling waterways in the U.S., Australia and other countries, but it turns out that Salvinia molesta has at least one good point – it’s inspired a man-made coating that could help ships stay afloat. The upper surface of the floating plant’s leaves are coated with tiny water-repellent hairs, each of which is topped with a bizarre eggbeater-like structure. These hairs trap a layer of air against the leaf, reducing friction and providing buoyancy, while the eggbeaters grab slightly at the surrounding water, providing stability. Scientists at Ohio State University have successfully replicated these hairs in plastic, creating a buoyant coating that is described as being like “a microscopic shag carpet.” Read More
— Good Thinking

Carnivorous plant inspires new super-slippery material

By - September 23, 2011 1 Picture
Who doesn't like carnivorous plants? They eat pesky bugs, they look like something out of Flash Gordon, and now it turns out that one of them has inspired a new type of liquid-repellent surface. The inspirational flora is the pitcher plant, which is shaped like - well, like a water pitcher, or perhaps a wide-end-up trumpet. When insects step onto its slippery inner surface, they lose their footing and fall down into a pool of collected rainwater in its base, where they are digested. Scientists from Harvard University's School of Engineering and Applied Sciences (SEAS) have copied the structure of that inner surface and come up with a material that resists not only most liquids, but also ice and bacteria, and it does so under a wide range of conditions. Read More
— Health and Wellbeing

New device developed to make health diagnosis cheaper and quicker

By - August 24, 2010 1 Picture
When bodily fluids such as blood are tested for infectious diseases and unhealthy protein levels, they’re typically mixed with antibodies or other biological reactants to produce a positive or negative reaction. Researchers from Arizona State University (ASU) have now come up with an alternative testing system that they claim is just as accurate, but much simpler, quicker and cheaper. It utilizes LED lights and simple microelectronic amplifiers, and actually uses the sample itself as a diagnostic tool. Because it integrates the sample into the process, inventors Antonia Garcia and John Schneider call their device the Integrascope. Read More
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