Addition to “Bioinspired l‑Proline Oligomers for the Cryopreservation of Oocytes via Controlling Ice Growth” - Qin, Qingyuan; Zhao, Lishan; Liu, Zhang; Liu, Tao; Qu, Jiangxue; Zhang, Xiaowei; Li, Rong; Yan, Liying; Yan, Jie; Jin, Shenglin; Wang, Jianjun; Qiao, Jie (ACS applied materials & interfaces, 2020)