 Hydrogels have been widely used in preclinical and clinical trials due to their high strength and flexibility. However, they are often brittle and fragile, making them difficult to use in certain environments such as human organs and tissues. Recently, researchers have developed self-healing hydrogels which can repair themselves when damaged. These hydrogels are made up of two networks, one of which is designed to be more flexible while the other is designed to be stronger. This allows the gel to be both strong and flexible, allowing it to better adapt to its environment. Nanomaterials have also been added to these gels to make them even more resilient and able to heal quickly. These materials can be used in a variety of applications, from bio-electronic devices to soft robots. This article was authored by Sepair Tullibyan, MediMirali, Naritibnia, and others.