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Coatings

Brown University's Qi Wang swirls a solution of selenium nanoparticles

Although it’s known to kill bacteria, selenium has never been tried as an antibacterial coating for implanted medical devices ... until now, that is. Engineers from Rhode Island’s Brown University have applied coatings of selenium nanoparticles to pieces of polycarbonate – the material used for things like catheters and endotracheal tubes – and then exposed those samples to Staphylococcus aureus bacteria. In some cases, populations of the bacteria were subsequently reduced by up to 90 percent.  Read More

Ultra smooth SLIPS (Slippery Liquid Porous Surfaces) developed at Harvard University could...

Although advances in refrigeration technology means we don’t need to defrost the freezer as often as we used to, many of us are still forced to carry out the task on a regular basis lest we find the frosty walls closing in to claim that tub of ice cream. Now a team from Harvard University has developed ultra smooth slippery surfaces that prevent ice sheets from developing by allowing even tiny drops of condensation or frost to simply slide off. As well as keeping freezers frost-free, the technology could be used to prevent ice build up on metal surfaces in wind turbines, marine vessels, and aircraft.  Read More

Gemballa promises that its diamond finish will be a friend of both men and women

German tuner Gemballa has announced an innovation that should lead to many cars that surpass the gaudiness of even its own gold-splashed Mirage GT Gold Edition. It's a car finish made from crushed diamonds.  Read More

A research group at MIT has developed LiquiGlide, a slippery, non-toxic coating that makes...

It's one of the most common and infuriating dining problems everyone encounters: getting ketchup to pour smoothly out of bottle and onto your plate. You've probably heard a number of solutions from "tap the 57" to "spin the bottle between your hands," but even those methods can still drown your fries in sauce in the end. Luckily, science - or rather, a research group working at MIT - has finally taken notice and concocted an impressive solution. By coating the inside of any bottle with the slippery LiquiGlide coating, anything from ketchup to mayonnaise to jam flows right out like water, barely leaving a smudge behind.  Read More

A new nanoparticle-based coating is said to repel water from porous materials, while still...

Keeping porous building materials free from stains and water damage has gotten a little easier in the past few years. Thanks to advances in technology, we’ve seen the advent of things such as spray-on glass and anti-graffiti coatings. Now, Spanish nanotech company TECNAN is offering a nanoparticle-based coating that repels liquid, yet still allows the underlying material to breathe.  Read More

NTU's nanoporous antimicrobial coating is being used in the manufacture of contact lenses

Scientists at Singapore's Nanyang Technological University (NTU) have created a "magnetic-like" coating that traps and destroys 99 percent of the bacteria and fungi that it encounters. The antibacterial coating has been shown to be effective against superbugs like Staphylococcus aureus and is already being used in the manufacture of contact lenses. As well as finding numerous biomedical and household applications, the research could lead to new wound treatments and even be used to target bacterial infections inside the body without the use of conventional antibiotics.  Read More

In addition to an MRI (pictured), gold nanoparticles allow a brain tumor to be imaged phot...

Scientists at Stanford University’s School of Medicine have created nanoparticles that are able to precisely highlight brain tumors. Because the nanoparticles can be imaged in three different ways, they can be used to delineate the boundaries of tumors before and during brain surgery to ease the complete removal of tumors. The scientists have already used the nanoparticles to remove brain tumors from mice with unprecedented accuracy and hope the technique could be used on humans in the future.  Read More

'Hydrate-phobic' surface coatings could prevent blockages on deep-sea gas and oil wells (P...

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

The Zircotec anti-stick coating being applied

In the last two years, UK coatings specialist Zircotec has helped 10 of the 12 Formula One teams to protect their composite diffusers from exhaust gasses via the use of ceramic coatings. To do so, it created a coating that allows composites to function in temperatures above their melting point! This year, its engineers have been busy on a new challenge, as debris from tires has been causing build-up on aerodynamic surfaces which has been reducing down-force.  Read More

Scientists have determined that graphene could be put to use as the world's thinnest anti-...

It seems like the uses for graphene just won’t stop coming. The ultra-strong sheet material, made from bonded carbon atoms, has so far shown promise for use in transistors, computer chips, DNA sequencing, and batteries ... just to name a few possibilities. Now, scientists have discovered that it can also be used as a very effective anti-corrosion coating – and at just one atom in thickness, it’s thinner than any of the alternatives.  Read More

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