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Self-healing

The self-healing-concrete would fill cracks and prevent decay and the corrosion of rebar (...

You’d think that concrete would last forever. After all, it’s pourable stone, so it should hang around as long as the Rock of Gibraltar. But, under the right (or wrong) conditions, concrete decays with alarming speed. To combat this, researchers at the University of Bath in the UK are working on a self-healing concrete that uses bacteria to seal the cracks that lead to decay. In this way, they hope to cut down on maintenance costs and increase the life of concrete structures.  Read More

The 'artificial leaf' created by Daniel G. Nocera, Ph.D. and his team now has self-healing...

Back in 2011, scientists reported the creation of the “world’s first practical artificial leaf” that mimics the ability of real leaves to produce energy from sunlight and water. Touted as a potentially inexpensive source of electricity for those in developing countries and remote areas, the leaf’s creators have now given it a capability that would be especially beneficial in such environments – the ability to self heal and therefore produce energy from dirty water.  Read More

Self-healing chips recover from complete laser-inflicted transistor destruction (Photo: Je...

Although you are fairly unlikely to start zapping your gadgets with high-power lasers any time soon, scientists are already hard at work trying to make electronics immune to such cruelty. In another in a series of self-healing electronics breakthroughs, a team of scientists from the California Institute of Technology (Caltech) demonstrated chips capable of dealing not only with laser-inflicted physical damage but also with far more common ailments such as aging, power fluctuations, changes in temperature or load mismatch.  Read More

NC State's self-healing elastic electrical wire

Last month, we heard about how a team led by North Carolina State University’s Dr. Michael Dickey had created an electrical wire that could be stretched up to eight times its regular length ... and still carry a current. This was possible thanks to a conductive liquid metal alloy of gallium and indium, contained inside the wire’s elastic polymer outer housing. Now, Dickey's team has developed a new wire that not only can be stretched, but that will heal itself when severed.  Read More

Simulation of the clotting process, showing the platelets in gold and the Willebrand facto...

Blood clots are one way in which the body heals itself after injuries on even the tiniest level. The process is fast, reliable and goes on every minute of the day without our being aware of it. Now, a team led by MIT assistant professor of materials science and engineering Alfredo Alexander-Katz is studying blood clots as a new model for producing self-healing materials.  Read More

The material repairs itself in about 30 minutes after being sliced in half with a scalpel ...

Our largest bodily organ is also one of the most remarkable. Not only is our skin pressure sensitive, it is also able to efficiently heal itself to provide a protective barrier between our insides and the world around us. While we’ve covered synthetic materials that can repair themselves or are pressure senstive, combining these properties in a single synthetic material has understandably proven more difficult. Now researchers at Stanford University have developed the first pressure-sensitive synthetic material that can heal itself when torn or cut, giving it potential for use in next-generation prostheses or self-healing electronic devices.  Read More

A new self-cleaning coating technology could mean the end of the tiresome chore of washing...

Nissan’s "Scratch Guard Coat” has been healing fine scratches on the company’s cars for a few years now, and the technology has also made its way into an iPhone case. More recent developments have produced coatings to heal more substantial scratches and scrapes using nano-capsules. Now researchers at The Netherlands’ Eindhoven University of Technology (TU/e) have developed a coating that is not only self-healing, but also promises to free car owners of the tiresome chore of washing the car.  Read More

Researches have successfully resuscitated non-oscillating BZ gel in a development that cou...

Researchers at MIT and the University of Pittsburgh have successfully resuscitated non-oscillating Belousov-Zhabotinsky (BZ) gel by exerting a mechanical stimulus: a process akin to the resuscitation of a human heart. By exhibiting a chemical response to a mechanical stimulus (a rare feat for non-living matter), it's claimed the material could lead to the development of artificial skin that would enable robots to feel.  Read More

A new plastic demonstrated to the American Chemical Society on Monday not only professes t...

Gizmag regulars will be well-used to the idea of self-healing materials, and even materials that repair themselves when exposed to light; but a new plastic demonstrated to the American Chemical Society on Monday purports to be the first self-healing material to incorporate a damage-reporting mechanism, almost akin to the bleeding of human skin.  Read More

Scientists have created a self-healing hydrogel, that responds to the acidity of its envir...

Velcro is pretty handy stuff, but imagine if there was a soft, stretchy material with the same qualities. Well, now there is. Scientists from the University of California, San Diego have created a self-healing hydrogel that binds together in seconds, essentially copying the Velcro process at a molecular level. The new material could potentially find use in medical sutures, targeted drug delivery, industrial sealants and self-healing plastics.  Read More

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