Highly transparent, stretchable, and 3D-printable photochromic hydrogel for information encryption and coding Authors Zhouyi Pan, Yu Li, Rui Ren, Yuanjun Luo, Shihao Zhang, Vinh-Han Dac Le, V.H. Giang Phan, Yuanyuan He, Yi Li Publication year 2025 Index (WoS/Scopus) WoS Publisher Elsevier Journal Polymer Link https://www.sciencedirect.com/science/article/pii/S0032386125014107?via%3Dihub=