Self-Healing Materials are smart materials designed to automatically repair damage (like cracks, cuts, or wear) without external intervention — mimicking biological healing processes (like skin regenerating after a cut). What Are Self-Healing Materials? These materials can sense damage and trigger chemical or physical responses to restore their original properties, enhancing durability, safety, and lifespan . 🧪 Types of Self-Healing Materials 1. Intrinsic Self-Healing The material itself can reform bonds or reorganize structure to heal. Often triggered by heat, light, or pressure . Example: Polymers with reversible bonds (like Diels-Alder or hydrogen bonding systems). 2. Extrinsic Self-Healing Healing agents (like resin or glue) are embedded in microcapsules or vascular networks . When damage occurs, these agents are released to fill and repair the crack. Inspired by the human circulatory system . 🧠 How They Work (Mechanisms) Mechanism Desc...