Biosensing is a technology that detects biological substances, such as proteins, DNA, or pathogens, using sensors. These sensors can convert biological interactions into measurable signals, allowing for the identification and quantification of specific molecules. Biosensing is widely used in medical diagnostics, environmental monitoring, and food safety. The core components of a biosensor include a biological recognition element, like an enzyme or antibody, and a transducer that converts the interaction into an electrical signal. This technology plays a crucial role in advancing fields like biotechnology and healthcare, enabling rapid and accurate testing for various applications.