“…Vascular embolization is a minimally invasive intervention surgery that could selectively deliver embolic agents into the artery to occlude diseased blood vessels. , Owing to its merits of negligible trauma, few complications, and low reoperation incidence as well as rapid recovery, − embolization provides a safe endovascular therapy that has been widely applied for treating various diseases in clinics, such as vascular bleeding, unresectable hepatocellular tumors, and aneurysms. − Notably, the clinical benefit of embolization therapy was greatly determined by embolic agents. An ideal embolic agent should satisfy the requirements of favorable biocompatibility, stable and complete occlusion in the blood vessels, and appropriate but not uncontrollable swelling ability to match the size of targeted vessels without causing overdosed vascular distension.…”