Scheme 1.

Schematic illustration of the fabrication of Ti₂C-cryogel and its application in a rat MI model. After etching with HF the MAX phase Ti₂AlC was transformed into the MXene phase Ti₂C. The Ti₂C nanoparticle was added to the prepolymer solution via bath sonication, then the Ti₂C-cryogel was fabricated through chemical crosslinking at -20 °C. Finally, the Ti₂C-cryogel ECPs were transplanted onto the infarct area to repair MI.