Investigating Raman peak enhancement in carboxyl-rich molecules: insights from Au@Ag core-shell nanoparticles in colloids - Chen, Junhao; Chen, Zhengjia; Liang, Tong; Zhang, Zhennan; Cheng, Dahang; Liu, Shurui; Liu, Haiyang; Liu, Cuicui; Song, Xiaohui (Frontiers in Chemistry, 2025)