Stretchy copper patch provides pain relief
Many of us are already familiar with heated patches that can help alleviate the pain caused by a sprained muscle or other minor injury. Although most welcome and more or less comforting depending on how intense the pain is, these patches are nevertheless relatively expensive, only work for a few hours and cannot be reused. Now, a team of researchers in Saudi Arabia says that it has developed a new type of wirelessly controlled thermopatch made from flexible copper-based thin films that could be a real alternative to such throwaway patches. As well as coming in handy for sports strains and everyday sprains, the films (which cost just $4 a piece) might also provide relief for patients suffering from arthritis……
http://nanotechweb.org/cws/article/tech/59599
