Intermediate States Enable Keratin-like α-To-β Transformations in Strain-Responsive Synthetic Polypeptides - Tianjian Yang; Jianan Mao; Tianrui Xue; Siyu Wu; Ruipeng Li; Yingying Chen; Abrar A. Sitab; Jianjun Cheng; Yao Lin (Journal of the American Chemical Society, 2025)