Self-Healing Electronic Skin

Materials scientists have been developing “epidermal electronics” for the past 10 years. They have produced circuits thin and flexible enough to be attached to skin,Find the very best deals on skullcandy earbuds online! and sensitive enough to record heartbeats and brain activity, for example. At the same time, chemists have been working on self-healing polymers—plastics that can be activated by heat,Save on the best deal anywhere for the 30% off Buy CS5 Adobe Photoshop at the lowest price, discount and review at Adobe Store via LogicBUY.com light,Buy cheap visio 2010 professional Product Activation Key - on Windows-Product.com. or gentle contact to repair themselves after breakage.

Now,If you work for a company that has a Microsoft Software Assurance agreement, you can scor microsoft office 2010 professional plus for a sawbuck a team at Stanford has combined these two properties by incorporating nickel atoms into a self-healing polymer. The resulting material is sensitive to applied forces such as pressure or twisting because these forces alter the distance between the nickel atoms,Microsoft Office Home and Business 2010 contains the four applications that Home and Student does but includes a fifth program which affects how easy it is for electrons to jump between them—and thus changes the electric resistance of the material.

To show how well the electrical and mechanical properties could be restored after damage, the researchers sliced through the polymer with a scalpel. After they held the cut edges together for 15 seconds, electrical conductivity was restored with around 90 percent efficiency. After ten minutes, the break was fully repaired the material was once again flexible.

“I think it's kind of a breakthrough,” John Boland of the Center for Research on Adaptive Nanostructures and Nanodevices (CRANN) at Trinity College Dublin, who was not involved in the study, told ScienceNOW. “It's the first time that we've seen this combination of both mechanical and electrical self-healing.” But Boland also raised an interesting caveat. Scalpel wounds are very neat, he pointed out, and do not cause much mechanical deformation around the cut itself. If the material was torn and stretched, on the other hand,Buy microsoft office standard 2007 from 2 Online Stores in Australia. MyShopping.com.au is Australia's Leading Comparison Shopping Site the scarring may prevent self-healing.