Gels

Gels are soft, jelly-like materials that have both liquid and solid properties. In soft matter physics, they consist of a network of molecules that trap liquid, giving them a semi-solid structure. This unique arrangement allows gels to retain shape while being flexible, similar to the way jelly holds its form yet wobbles. Common examples include gelatin, used in desserts, and silica gel, found in moisture-absorbing packets. Gels are important for various applications, including food, medicine, and materials science, due to their ability to encapsulate ingredients, provide texture, and deliver controlled release of substances.