@article{peppas2006,
  title={Hydrogels in Biology and Medicine: From Molecular Principles to Bionanotechnology},
  author={Nikolaos A. Peppas and J. Zach Hilt and Ali Khademhosseini and Róbert Langer},
  year={2006},
  journal={Advanced Materials},
  doi={10.1002/adma.200501612},
  url={https://doi.org/10.1002/adma.200501612}
}