Journal Article 31C4KY9ESH 94ZLA3W45F Arginine Catalase EC 1.11.1.6 EC 1.14.13.39 Fetal arrest Hydrogels In vitro fertilization and embryo transfer Infertility NO/O2 gas generating Nitric Oxide Nitric Oxide Synthase Oxygen PIBF1 protein, human Poisson‐Nernst‐Planck (PNP) equations Pregnancy Proteins Progesterone-induced blocking factor Research Support, Non-U.S. Gov't S88TT14065 Suppressor Factors, Immunologic Th1/Th2 gating behavior hydrogel sensors hypoxia relief neuromimetic tactile sensing piezoionic mechanisms radiotherapy self‐catalytic nanozyme