Abstract
Electrochemical biosensor is a subject that has received the most attention from scientists in recent years. It is not only related to human life but also natural environment. Research on electrochemical biosensors is also cross-linked with many other scientific fields, such as nanomaterials and hazardous chemical detection. In this research, electrochemical biosensor is discussed by divided into three types, including potentiometric, amperometric, and voltammetric biosensors. The unique mechanism, advantages and application of these electrochemical biosensors is also introduced in this article. Potentiometric biosensor is frequently used for phosphate, toxicity and heavy metal detection. Amperometric biosensors are usually combined with enzymes for the identification of additives in products and contaminants in water. Voltammetric biosensors are most commonly used for blood glucose testing, but can also detect many tastes.
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