Scientists develop silver nanoparticle sensor to detect genes causing hearing loss
A team of scientists from the University of Sharjah say they have invented a biosensor capable of detecting the gene mutations responsible for the loss of hearing.
A team of scientists from the University of Sharjah say they have invented a biosensor capable of detecting the gene mutations responsible for the loss of hearing.
Bio & Medicine
Jul 2, 2024
0
24
Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University report in Biosensors and Bioelectronics: X a novel approach for detecting a particular biomolecule associated with several diseases. The results ...
Bio & Medicine
Jun 13, 2024
0
47
Point-of-care testing (POCT) devices show great advantages over conventional diagnostic tests in being accessible to patients and providing timely diagnostic information. The global POCT market has grown remarkably over the ...
Biochemistry
Jun 13, 2024
0
0
Researchers have successfully demonstrated a novel biosensor capable of detecting single-stranded DNA oligonucleotides with high specificity without needing external labels. This advancement paves the way for more accessible ...
Biotechnology
Jun 12, 2024
0
4
A biosensor is a device for the detection of an analyte that combines a biological component with a physicochemical detector component.
It consists of 3 parts:
The most widespread example of a commercial biosensor is the blood glucose biosensor, which uses the enzyme glucose oxidase to break blood glucose down. In doing so it first oxidizes glucose and uses two electrons to reduce the FAD (a component of the enzyme) to FADH2. This in turn is oxidized by the electrode (accepting two electrons from the electrode) in a number of steps. The resulting current is a measure of the concentration of glucose. In this case, the electrode is the transducer and the enzyme is the biologically active component.
Recently, arrays of many different detector molecules have been applied in so called electronic nose devices, where the pattern of response from the detectors is used to fingerprint a substance. Current commercial electronic noses, however, do not use biological elements.
A canary in a cage, as used by miners to warn of gas could be considered a biosensor. Many of today's biosensor applications are similar, in that they use organisms which respond to toxic substances at a much lower level than us to warn us of their presence. Such devices can be used in environmental monitoring, trace gas detection and in water treatment facilities.
This text uses material from Wikipedia, licensed under CC BY-SA