biosensor
Sign in to saveA biosensor is an analytical device, used for the detection of a chemical substance, that combines a biological component with a physicochemical detector. The sensitive biological element, e.g. tissue, microorganisms, organelles, cell receptors, enzymes, antibodies, nucleic acids, etc., is a biologically derived material or biomimetic component that interacts with, binds with, or recognizes the analyte under study. The biologically sensitive elements can also be created by biological engineering. The transducer or the detector element, which transforms one signal into another one, works in a
Article
40 sectionsContents
- Biosensor system
- Bioreceptors
- Antibody/antigen interactions
- Artificial binding proteins
- Enzymatic interactions
- Affinity binding receptors
- Nucleic acid interactions
- Epigenetics
- Organelles
- Cells
- Tissue
- Microbial biosensors
- Surface attachment of the biological elements
- Biotransducer
- Electrochemical
- Ion channel switch
- Reagentless fluorescent biosensor
- Magnetic biosensors
- Others
- Biosensor MOSFET (BioFET)
- Placement of biosensors
- Applications
- Glucose monitoring
- Interferometric reflectance imaging sensor
- Food analysis
- Detection/monitoring of pollutants
- Ozone measurement
- Metastatic cancer cell detection
- Pathogen detection
- Types
- Optical biosensors
- Biological biosensors
- Electronic nose devices
- DNA biosensors
- Graphene-based biosensor
- See also
- References
- Bibliography
- See also
- External links
A biosensor is an analytical device, used for the detection of a chemical substance, that combines a biological component with a physicochemical detector. The sensitive biological element, e.g. tissue, microorganisms, organelles, cell receptors, enzymes, antibodies, nucleic acids, etc., is a biologically derived material or biomimetic component that interacts with, binds with, or recognizes the analyte under study. The biologically sensitive elements can also be created by biological engineering. The transducer or the detector element, which transforms one signal into another one, works in a physicochemical way: optical, piezoelectric, electrochemical, electrochemiluminescence etc., resulting from the interaction of the analyte with the biological element, to easily measure and quantify. The biosensor reader device connects with the associated electronics or signal processors that are primarily responsible for the display of the results in a user-friendly way. This sometimes accounts for the most expensive part of the sensor device, however it is possible to generate a user friendly display that includes transducer and sensitive element (holographic sensor). The readers are usually custom-designed and manufactured to suit the different working principles of biosensors.
==Biosensor system==