Single-atom Ca nanozyme induces glioma death through Ca2+-overload-enhanced catalytic tumor nanotherapy, ferroptosis and synergistic remodeling of the immune microenvironment | Journal of Nanobiotechnologybig tee tech hubNovember 15, 2025 Synthesis strategy and microstructure analysisWe previously demonstrated that piezoelectric polymer membranes based on single metal atoms are effective by anchoring…