Microstructured barbs on the North American porcupine quill enable easy tissue penetration and difficult removal

by Cho, Woo-Kyung, Ankrum, James Allen, Guo, Dagang, Chester, Shawn Alexander, Yang, Seung Yun, Campbell, Georgina A., Wood, Robert J., Rijal, Ram K., Karnik, Rohit, Langer, Robert, Karp, Jeffrey Michael, Kashyap, Anurag, M. Eng. Massachusetts Institute of Technology
Published 2013