Nano band-aid
In Tokyo’s Waseda University created the world’s thinnest band-aid, a nanometers-thick adhesive bandage sheet designed for surgical use. With nano band-aid you can pull off a wound, even on internal organs. Scientists have successfully used it healing a wound in the lungs of a dog. One week after attaching the plaster, scientists found the dog’s wound had healed.
Named “Nano Bansoko” (nano band-aid), the new bandage is between from several tens of nanometers to 1,500 nanometers thick (a nanometer is one-billionth of a meter). It is more than 1,000 times thinner than a plastic wrap. One side of nano band-aid is highly adhesive and can stick to tissues around wounds, while the other side shows very little tissue adhesion. The bandage, which breaks down naturally after healing, is made from chitosan (a substance derived from chitin found in crab shells) and alginate sodium (produced in kelp slime).
“We will now conduct a detailed safety evaluation in order to put the bandage into practical use in three years,” said professor Shinji Takeoka, who also announced plans to study the use of the bandage on other organs like intestines, as well as in scar prevention on sutured wounds after breast cancer surgery.
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