Painless needles by porcupine

A study published Tuesday in the Proceedings of the National Academy of Sciences reveals that feathers may help scientists develop less painful needles under the skin.

Creation of needles without pain due to porcupine

North American sparrows carry about 30,000 scary feathers on their backs and are willing to bump into their predators. Once the feathers are attached to the enemy, the hedgehog can easily remove the feathers from his flesh, but for the enemy it is not easy to get the pointed needles. Based on the structure of the porcupine feather, the scientists create a needle-prone needle that is easily painless and does not buckle.

Lead researcher Dr. Jeffrey Karp from Boston Women's Hospital said: 'We were surprised to find that the tips on the porcupines worked with a double function. Specifically, the spear reduces the stab force to easily penetrate the tissue, while maximizing holding force makes the spear a high degree of adhesion. This will be the basis for the development of next generation medical adhesives and needle design with pain relief. "

References: Daily Mail