Electrochemical Nano Biosensor
Electrochemical Nano Biosensor
technology application

Electrochemical Nano Biosensor

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updatedMar 26, 2021
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Ladislav Kubes @ KPixMining

An analytical device designed to convert biochemical occurrences into electrical signals, helping detect certain biomolecules.
An analytical device designed to convert biochemical occurrences into electrical signals, helping detect certain biomolecules.

This analytical device converts biochemical occurrences, such as antigen-antibody interaction and enzyme-substrate reaction, into electrical signals. Depending on each sensor's composition, it is capable of detecting biological materials such as enzymes, whole cells, specific ligands, and tissues, but also non-biological chemicals.

An electrode is an important part of this sensor, used as solid support for the immobilization of biomolecules and electron movement. For electrodes, carbon-based materials (carbon nanotubes and graphene) or non-carbon nanomaterials (metallic and silica nanoparticles or nanowire) can be used. When a particular biomolecule is detected, the conductance, resistance, or capacitance of the biosensor surface changes due to oxidation and reduction reactions, providing the sensor with a signal. Current uses vary from clinical (long-term implants and in-vitro multi-analysis) to non-clinical applications, such as reactive monitoring and bioagent detection.

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