Dandelion-like Pd/Cu nanozyme with multi-enzyme activities: A colorimetric sensor array for PFAS discrimination - Hui-ting Hu; Xiao-mei Li; Wen-cai Jiang; Chen Ni; Yu-yang He; Guo-qi Zhang; Hao Yu; Zhi-Bo Hou (Analytica Chimica Acta, 2026)