DNA biosensors

DNA biosensors are analytical tools that detect specific DNA sequences using biological components. They work by having a DNA strand that can bind to a target DNA sample. When the target DNA attaches, it causes a measurable signal—like a change in electrical current or light. These sensors are useful for identifying genetic material, diagnosing diseases, or detecting pathogens quickly and accurately. Essentially, DNA biosensors translate the presence of particular DNA into an easy-to-read signal, enabling rapid and sensitive detection in medical, environmental, and food safety applications.