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
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24
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
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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
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47
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
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4
The discharge of organic effluents—biodegradable waste materials from plants and animals—into freshwater bodies is a significant environmental concern, affecting the health and sustainability of these aquatic ecosystems. ...
Biochemistry
Nov 2, 2023
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1
Scientists can do some nifty things with microbes, including engineering bacterial cells to sense and signal the presence of specific compounds. These microbial whole-cell biosensors have numerous purposes, from detecting ...
Cell & Microbiology
Sep 26, 2023
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1
The outbreak of the COVID pandemic in 2020 has once again shown how important reliable and rapid detection methods are to initiate effective measures to combat a pandemic. Scientists from the Chair of Materials Science and ...
Bio & Medicine
Sep 14, 2023
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Biosensors are artificial molecular complexes designed to detect the presence of target chemicals or even biomolecules. Consequently, biosensors have become important in diagnostics and synthetic cell biology. However, typical ...
Cell & Microbiology
May 22, 2023
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222
Biosensors—sensors that can detect biological samples—are powerful tools for understanding the function, composition, and structure of biochemical molecules. Biosensors are often applied for the detection of proteins ...
Cell & Microbiology
Apr 25, 2023
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38
Environmental contaminants like fluoride, lead and pesticides exist all around and even within us. While researchers have simple ways to measure concentrations of such contaminants inside lab environments, levels are much ...
Analytical Chemistry
Jan 4, 2023
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86
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