Fig. 1: Design strategy for US-induced tandem catalysis to trigger robust SDT and CDT.

a Fabrication of CpBT nanoreactors and PH-CpBT bone scaffold. b Driven by US-activated tandem catalysis, CpBT nanoreactors can trigger cascade reactions between SDT and CDT. S. aureus was eradicated through cuproptosis-like death and cell oxidative stress mediated by ROS. c In an infected bone implant model, the PH-CpBT bone scaffold showed good antibacterial, angiogenesis, and osteogenesis multifunctionality in vivo, synergistically.