Electronic Structure-Engineered Vanadium Carbide MXene Nanocatalyst Enables Multimodal Reactive Species Scavenging for Stem Cell Regulation

Efficient modulation of reactive oxygen and nitrogen species (ROS/RNS) is essential for restoring redox homeostasis and preserving stem cell functionality, yet it remains a major challenge in stem cell-based therapies. Here, we report an electronically coupled vanadium-based MXene nanocatalyst that leverages engineered platinum nanoparticles-MXene (Pt/V₂C) interfacial interactions to achieve broad-spectrum ROS/RNS scavenging with markedly enhanced catalytic kinetics. The electronic mo