Azobenzene solutions are widely used in photoresponsive materials due to their ability to undergo reversible trans-cis isomerization when exposed to light. This property makes them valuable in optical data storage, where molecular changes can represent binary states. They are also employed in photonic switches and liquid crystal displays to control alignment and orientation using light. In biomedical applications, azobenzene derivatives act as photopharmacological agents, enabling drug activity to be controlled with light for targeted therapy. Additionally, they are used in smart polymers and actuators that change shape or mechanical properties upon light exposure, useful in developing light-driven micro-machines and sensors.