Lecture

Electrochemical Sensors: Redox Reactions and Biosensors

Description

This lecture covers the principles of electrochemical sensors, focusing on redox reactions and biosensors. It explains the working electrode, counter electrode, and the measurement of current in electrochemical reactions. The lecture also delves into the diffusion coefficient of molecules, electrode surfaces, and activation of redox reactions. Additionally, it discusses biosensors, including amperometric biosensors and immunosensors, detailing their mechanisms and applications in detecting molecules. The use of enzymes, transducers, and bioreceptors in biosensors is explained, along with the measurement of molecule concentrations via selective affinity. Various types of sensors, such as glucose sensors and gas sensors, are also explored, highlighting their detection limits, response times, and applications.

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