A bibliometric analysis of hydrogel research in various fields: the trends and evolution of hydrogel application. - Yuan, Zhong-Zhu; Fan, Yu-Zhou; Cheng, Shao-Jun; Wei, Feng-Jie; Gao, Jing; Wang, Chen-Xi; Song, Bo-Shuang; Tan, Si-Lu; Gao, Si-Lian; Kang, Juan-Juan; Liu, Yan; Li, Sheng-Hong (Journal of Nanobiotechnology, 2025)