FIGURE 5.

Translational-readiness gap for ROS-responsive cardiovascular biomaterials. The figure depicts a narrowing evidence pathway from strong preclinical material design and therapeutic efficacy toward progressively weaker evidence for quantitative pharmacokinetics and whole-body biodistribution, chronic cardiovascular safety, large-animal reproducibility, manufacturing control, and human validation. Platform-specific branches distinguish local hydrogels and patches, systemic nanoparticles and liposomes, metal or inorganic nanozymes, biologically derived carriers, cell and nucleic-acid therapies, and gas-delivery systems. Preliminary tolerability is separated from comprehensive safety evidence (Prepared with the assistance of Gemini NotebookLM pro and OpenAI ChatGPT Plus).