Electric fields have previously been shown to speed up wound healing, so researchers have created a dressing powered by static electricity
An electric wound dressing can help heal injuries faster than existing methods, according to tests in rats.
has found that applying electric fields across a cut can speed up wound healing, but this usually requires large and specialised equipment.at the University of Electronic Science and Technology of China in Chengdu and his colleagues wanted to develop an alternative that could be applied in a similar way to traditional wound dressings. “Non-invasive, efficient, cost-effective and convenient approaches are always desired for treating skin wounds,” he says.The dressing is made up of four layers.
The circular wounds that received the electric dressing were 96.8 per cent closed after eight days, compared with between 76.4 and 79.9 per cent closed with other dressings, and 45.9 per cent closed for wounds that weren’t dressed. The straight wounds healed faster than round ones because they have less “defect tissue”, says Yao, but the relative performance was similar. “We are optimising the design of devices for more shaped wounds, including irregular shapes,” says Yao.
“The study has a really interesting design idea to use electrostatic thin film to enhance the wound closure and stop bacterial infections,” says at Flinders University, Australia. “However, the cost may be a biggest hindrance for this design.” Yao declined to say how much the dressing costs to manufacture, but says “it is not expensive”.
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