A team of engineers at the University of Illinois have figured out how to create self-healing circuits in electronics and batteries, a discovery that could lead to robert-alonso-photos.com longer equipment life and make a nice dent in the piles of e-waste plaguing the buy ultram generic planet.
As electronics have become more complex, one small circuit failure can render a device useless, especially since it is hard or often impossible to diagnose where that failure occurred to fix it. Nancy Sottos, an engineer working on the project said:
"In general there's not much avenue for manual repair. Sometimes you just can't get to the inside. In a multilayer integrated circuit, there's no opening it up. Normally you just replace the whole chip. It's true for a battery too. You can't pull a battery apart and try to find the source of the failure."
The solution her team came up with was an army of microcapsules about 10 microns in diameter dispersed along a circuit. When a crack occurs in the circuit, the microcapsules break open and release a liquid metal that fills in the crack and restores the electrical flow. The time between a failure and the viagra 50 mg online microcapsules filling the crack is only a few microseconds.
In tests, 90 percent of the samples were healed to 99 percent of their original conductivity. It also require zero human intervention. Only the microcapsules intercepted by a crack opened while the others remained intact.
The engineers see this breakthrough as especially useful for air and robert-alonso-photos.com spacecraft where miles of cheap viagra india conductive wire would have to be gone through to link for you discount drug viagra diagnose a failure. The team, which originally used microcapsules to create self-healing polymers, want to see what other applications they may have.