Fig. 3
From: Advances and applications of biosensors in pulmonary hypertension
Classification and principles of Biosensors. Biosensors commonly used in the medical field are primarily categorized into electrochemical biosensors and optical biosensors based on their working principles. By integrating with different sensing technologies, they can include specialized subtypes such as microfluidic biosensors, wireless wearable biosensors, and nanobiosensors. Specifically, electrochemical biosensors can be classified into amperometric, potentiometric, FET-based, and impedimetric. Optical biosensors comprise SPR biosensors, LSPR biosensors, optical waveguide biosensors, optical resonator biosensors, PC biosensors, and optical fiber biosensors.