
enzyme-based biosensors
Enzyme-based biosensors are devices that detect specific substances by utilizing enzymes—biological molecules that catalyze chemical reactions. When the target substance interacts with the enzyme, it causes a chemical change that the sensor can measure, often producing an electrical signal. These biosensors are highly selective, meaning they can accurately identify particular molecules, such as glucose in blood. They are widely used in medical diagnostics, food safety, and environmental monitoring because they provide quick, accurate, and sensitive detection of specific chemicals in complex samples.