self-healing
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Researchers develop new plastics that 'bleed' and heal like human skin
It looks like plastics may not be something for the squeamish in the not-too-distant future. Researchers from the University of Southern Mississippi recently revealed a new type of plastic they've been working on that takes its inspiration from human skin -- it "bleeds" red when it's scratched or cut and then heals itself when it's exposed to light. As Popular Science notes, self-healing plastics aren't something entirely new, but the "bleeding" (achieved using small molecular links or "bridges" that break when the plastic is scratched) is, as is the fact that this plastic can heal itself over and over again in the same spot. What's more, as it's made from water-based copolymers, it's also more environmentally-friendly than other plastics. Of course, it's all a ways from being used in actual products, but the researchers see no shortage of possibilities, including everything from self-healing car fenders to aircraft applications that could warn of problems before they get too severe.
Nissan Scratch Shield iPhone case uses self-healing paint, won't un-crack your screen
Well hey there, butterfingers. Do your smartphone cases often slip from grip, hitting the deck and resulting in a bevy of tiny nicks that leave you self-conscious about your inability to maintain a firm grasp? Well, Nissan (yes, that Nissan) may just have an answer, in the form of a self-healing iPhone case. Naturally, the Scratch Shield -- which we first heard of back in 2009 -- protects your device from garnering unwanted blemishes, but it also features a polyrotaxane-based finish that helps maintain the case itself, covering over small scratches in as little as an hour. Nissan is keeping its magic paint on home turf for the time being, licensing the material to Japanese carrier NTT DoCoMo, though the Leaf-maker is also said to be considering a commercial launch later this year. Until then, you'll need to stay strong (gripped), though a self-mend solution may well be in your future.
Researchers develop self-healing electronics, adamantium sadly not included
In today's feature-laden electronics devices, the failure of one little electronic component can scuttle the entire package. To make matters worse, if the damage happens to strike something like a multilayer integrated circuit, then you pretty much need to replace the whole computer chip. But what if the chip could repair itself like a certain vertically challenged Canadian mutant? That's exactly what researchers at the University of Illinois at Urbana-Champaign managed to do after placing self-healing polymers on top of a gold circuit. Once a break occurred, microcapsules with liquid metal filled the crack and restored 99 percent of conductivity in mere microseconds. Self-healing electronics would especially be helpful on things like aircraft, where miles of conductive wires can make finding a break difficult, researchers said. The research is just the latest in a field that also has seen self-healing sensors and shape-memory polymers, but sadly, there's still no word on using this stuff to self-heal a broken heart....
Behind the Mask: The truth about healing
One of the main reasons I decided to cover the Inferno archetype a couple weeks ago was because I felt I should showcase the importance of a self-heal for all characters. In Champions Online, freeform characters can select any powers they want, and the most important powers to choose are heals. Why? There's a lot of core elements of CO's design that correlate well with having healing powers. In any game, self-heals are effective, and unless they perform poorly, they tend to be highly valued. When a hero can select any powers, heals just naturally gravitate to the top of the list. But there are a few other things that make this pattern more significant.
NC State builds self-healing structural stress sensor, moves on to other alliterative projects
"Sensor, heal thyself," goes an old saying, and North Carolina State University researchers have given it a new spin. Structural stress monitors can break during, say, an earthquake or explosion: just when you most need information about a building's integrity. So the NCSU crew added a reservoir of ultraviolet-curable resin; if their sensor cracks, the resin flows into the gap, where a UV light hardens it. An infrared light, which does the actual monitoring, then has a complete circuit through which to pass, and voila: stress data flows once more, aiding decision-makers. Obviously we never tire of UV-reactive gadgetry, especially for making safer buildings, and we're doubly glad to see self-healing that doesn't involve the phrase "he's just not that into you." To see the self-repair in action, check the picture after the break, and hit the source link for more info.
Self-healing polymer serves up quick fixes under UV rays (video)
As many self-healing polymers as we've seen roll across our screens, we never really tire of them -- chalk it up to our unending quest for perfection, but we like our gadgets devoid of nicks and scratches. Lucky for us, a team of scientists that shares our need for clean has produced a material that fixes its imperfections in a mere 60 seconds when exposed to UV light. The typically rigid material basically melts down when exposed to rays of a specific wavelength, allowing it to fill in any nicks or dings. When the light is lifted, the polymer goes back to its original form, and voila -- the surface is like new. Its creators say the material could be used on everything from cars to dining room tables, but we've already come up with laundry list of devices that could do with a truly scratch resistant surface. Video of the stuff in action after the break.
Behind the Mask: Fixing the glass cannons
There's a sharp divide between the Champions Online that I play and the Champions Online played by the majority of the readers here at Massively. I play the heavily customized, freeform game -- and even among freeform players, I am aggressive in my builds. I avoid T0 blasts like the plague (although Two-Gun Mojo is pretty good), and I pick my powers with the sole intention of avoiding waste. Most of you guys play F2P now, and there's nothing wrong with that at all. All of the Archetypes are viable, especially in team situations. In general, they can't quite compete with a polished freeform character, but they're not dead spots in a lair, and they work surprisingly well when teamed up with freeform supermen (and women). Solo, it's a slightly different story. Of the current 10 Archetypes, most solo wonderfully, easily meeting the challenges present in the Normal difficulty game. That leaves three... and all share one similarity: They use the Avenger role. The Silver Avengers (not to be confused with the in-game organization of the same name) are very capable Archetypes. I've mentioned in the past that Inferno is one of the strongest, and to wit, all three Avengers absolutely roll through most content, especially on teams. Outside of teams, the three Avengers are so squishy that they suffer a bit when taking on the big baddies -- Master Villains and Super Villains. This week, I sought to find out the answer: Can Silver Avengers solo?
Shape-memory polymer knows when it's hurt, fixes itself
We're no strangers to the futuristic catch-all idea of 'self-healing' -- it's one of the basic tent poles of many conceptions of tomorrow. That said, researchers are currently hard at work at Arizona State on a material that -- you guessed it -- can detect when it is damaged and, of course, heal itself. Though we sound a bit incredulous, the science is pretty simple here, and the progress on the project is very real. The material uses what the researchers are calling 'shape-memory' polymers and have a fiber optic network embedded within them which acts as the damage sensor as well as the heat delivery system. The polymers return to a pre-defined shape when heated to a certain temperature, and, when damage is detected, an infrared laser sends light through the network to the damaged area, triggers the shape-memory, and commands the area to repair the crack or tear -- regaining up to 96 percent of its original strength. The so-called autonomous adaptive structures are part of a long-term research into shape-memory healing which could impact long-term developments of implantable medical devices, for instance. A video of the shape recovery process is after the break.
Artificial muscles let cadavers (and someday paralyzed humans) wink with the best of 'em
The above contraption, aside from looking really uncomfortable, is the latest advance in electroactive polymer artificial muscle technology. Using soft acrylic or silicon layered with carbon grease, EPAMs contract like muscle tissue when current is applied -- making 'em just the ticket for use in UC Davis's Eyelid Sling. Billed as the "first-wave use of artificial muscle in any biological system," the device is currently letting cadavers (and, eventually paralyzed humans) blink -- an improvement over current solutions for the non-blinking, which include either transplanting a leg muscle into the face or suturing a small gold weight into the eyelid. Look for the technology to become available for patients within the next five years.
Nissan's Scratch Shield paint coming to cellphones, invisibleSHIELD feels threatened
Remember Nissan's Scratch Shield paint technology? You know, that stuff we first heard about some four years back? According to a release straight out of Yokohama, the automaker has agreed to license that very tech to Japan's own NTT DoCoMo for "mobile phone application." In theory, at least, the flexible clearcoat will enable certain light scratches to actually heal themselves over time, and the paint itself is tougher to scratch to begin with. There's no specific mention of the who's and when's involved, but we're hoping to see this idea spread to other portable devices in the near future. After all -- who isn't sick of shelling out for some clear skin to protect each and every handheld they own?
Tinnitus: Leatherworking drums cause a debuff
Part of the allure of drums in raids has been the ability to overlap the effects of different types of drums by having several leatherworkers drumming at a time. One member might boost attack power and spell damage for party members in range, while another might restore health and mana. With the new Tinnitus debuff, any targets affected by drums are immune to the effects of all other drums for two minutes. While this sounds like a nerf, it might actually have a balancing effect. In fact, other professions are seeing similar changes. Potions will create Potion Sickness, which will prevent the consumer from using more than one in any given encounter. Players will have to rest out of combat in order to refresh the privilege. So far, this also is affecting mana gems and similar items, although it is unclear if that particular effect is a bug or not. What does this mean?
UCLA researchers create self-healing, power-generating artificial muscle
We've seen self-healing materials and artificial arms, but a team of researchers hailing from UCLA have taken two fabulous ideas and wed them together to create "an artificial muscle that heals itself and generates electricity." Put simply, the contracting / expanding of the material can generate a small electric current, which can be "captured and used to power another expansion or stored in a battery." The scientists have relied on carbon nanotubes as electrodes rather than metal-based films that typically fail after extended usage, and in an ideal world, the research could eventually lead to (more) walking robots and highly advanced prosthetics. Integrate an AC adapter in there and we're sold.[Via CNET]
Regenerative house to grace Greece mountainside
You've got plenty of options when it comes to healing your own body, but patching up your domicile usually requires days of back-breaking labor and gobs of cash to boot. Thankfully, that awful process could be nearing its end, as a £9.5 million ($18.64 million) European Union-funded project sets out to develop self-healing walls for your average home. The idea is to develop "special walls for the house that contain nano polymer particles, which will turn into a liquid when squeezed under pressure, flow into the cracks, and then harden to form a solid material." The technology would prove quite useful in areas where earthquakes are prominent, and in an effort to test things out before shoving it out to contractors everywhere, a swank villa is being erected on a Greece mountainside to collect information. The house's walls will be built from "novel load bearing steel frames and high-strength gypsum board," but more importantly, they will contain a smorgasbord of wireless sensors and RFID tags meant to collect, store, and disseminate critical data regarding "any stresses and vibrations, temperature, humidity, and gas levels." Now, who's the lucky lad(s) that get to call this their home research dwelling?[Via Physorg]
Self-healing panels cry for help when damaged
Scientists at the University of Alabama have just developed a "self-healing material," that releases a "syrupy epoxy" stored inside an outer polymer paneling when the exterior is breached. The epoxy flows into cracks or damaged areas and sets when exposed to UV light, reports NewScientist. In addition, embedded circuitry alerts technicians armed with a special wand to damaged areas. As the website reports further: "This is because the wand induces a current in the embedded circuit when it is intact. When the circuit is damaged this cannot happen and the wand sounds an alarm." We hope that these eggheads plan on collaborating with the University of Michigan's self-healing chip project so that both universities can create the ultimate in self-sustaining electronics. [Photo: University of Alabama]
Self-healing chips could function forever
Although you may have never given a thought to what transistors do to repair themselves when certain sectors fail, there are a few organizations who make it their life's work. Researchers from the National Science Foundation, the Semiconductor Research Corporation, and the University of Michigan have a mission to complete before their grant money runs dry: to create semiconductors that can heal themselves without the burdensome redundancy currently used. The goal here, which could seem a tad superfluous until you consider these chips operate in things like airplanes and medical devices -- you know, fairly critical applications -- is to design a semiconductor that runs more efficiently and can be counted on to function no matter how crucial the situation. By designing a chip that can auto-detect a problem, then shift the resources to a functioning area while the chip diagnoses and repairs the issue with help from "online collaboration software," you'll get a slimmer semiconductor that suffers no noticeable loss in performance while self-repairing. If this circuitry talk has your wires all crossed up, here's the skinny: more dependable chips will make everyone's life a bit easier, and if the team's plan is free of defects, we can expect to see prototypes within the next three years. [Via Mobilemag]
