A photoelectrochemical signal amplification mechanism with Exonuclease III driven stable generation of “Swing Arm” tetrahedral DNA walkers for mediating photogenerated carrier transfer - Jinjie Liu; Dongquan Leng; Yu Du; Tingting Wu; Dehao Jia; Lei Yang; Rui Xu; Qin Wei (Analytica Chimica Acta, 2026)