Biosensor technology involves devices that detect biological substances, such as proteins, glucose, or pathogens, and convert this information into measurable signals. These sensors typically consist of a biological element, like enzymes or antibodies, and a transducer that translates the interaction into an electrical signal. This technology is widely used in medical diagnostics, environmental monitoring, and food safety. The main advantage of biosensors is their ability to provide rapid and accurate results, making them essential in various fields. For example, glucose biosensors help individuals with diabetes monitor their blood sugar levels, while environmental biosensors can detect pollutants in water or air.