Ran Zhang, Peng Lin, Wufang Yang, Meirong Cai, Bo Yu and Feng Zhou
Polym. Chem., 2017,8, 7102-7107
DOI:
10.1039/C7PY01532A,
Communication
Inspired by the microscopic architecture of articular cartilage, mechanically strong porous hydrogels with a bilayer structure are prepared. Compared to the nonporous hydrogel, the lubricant layer is retained at the interface and the interior of the porous structure even under large normal loads to give a lower friction.