Glucose Biosensor
Glucose Biosensor - Related Videos
02:23
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0 Views •
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This video introduces how to perform an oral glucose tolerance test on a laboratory mouse.
05:52
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This video demonstrates an in vitro assay to indirectly measure intracellular glucose uptake. The assay uses a fluorescently-labeled glucose analog to establish a correlation between extracellular glucose depletion and intracellular glucose uptake.
08:04
Human Pseudoislet System for Synchronous Assessment of Fluorescent Biosensor Dynamics and Hormone Secretory Profiles
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2023
This protocol describes a method for the synchronous acquisition and co-registration of intracellular signaling events and the secretion of insulin and glucagon by primary human pseudoislets using the adenoviral delivery of a cyclic adenosine monophosphate (cAMP) biosensor, a cAMP difference detector in situ (cADDis), and a microperifusion system.
10:35
Extracellular Glucose Depletion as an Indirect Measure of Glucose Uptake in Cells and Tissues Ex Vivo
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Cited by 1 •
2022
Extracellular depletion of fluorescently labeled glucose correlates with glucose uptake and could be used for high-throughput screening of glucose uptake in excised organs and cell cultures.
14:04
Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
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Cited by 17 •
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Lytic phage biosensors and antibody beads are able to discriminate between methicillin resistant (MRSA) and sensitive staphylococcus bacteria. The phages were immobilized by a Langmuir-Blodgett method onto a surface of a quartz crystal microbalance sensor and worked as broad range staphylococcus probes. Antibody beads recognize MRSA.
FAQs
Glucose oxidase supplies the biochemical selectivity needed to distinguish glucose from other substances in the sensing environment. When it reacts with glucose, the reaction can generate electrons or hydrogen peroxide. The device’s electrochemical transducer then converts that reaction-related signal into current, allowing glucose concentration to be estimated from the measured electrical response.
Electrode materials and membranes are engineering variables that shape how effectively the sensing system handles the biochemical signal. Together with enzyme selection, they are chosen to improve sensitivity, selectivity, stability, and response time. Their design therefore affects whether the device can produce a useful current consistently, especially in compact or wearable formats.
They represent two biochemical signal routes available after glucose oxidase reacts with glucose. One route produces electrons directly, while the other produces hydrogen peroxide; in either case, an electrochemical transducer converts the resulting reaction into an electrical current. This gives engineers alternative signal-generation pathways when designing the sensing system.
A design must coordinate the glucose-selective enzyme, the electrode material, any membrane, the electrochemical transducer, and signal-processing methods. These elements connect the biochemical reaction to a usable measurement: the enzyme supplies selectivity, the transducer produces an electrical readout, and signal processing helps shape that readout. Engineering them together supports reliable performance.
Their applications extend across wearable health technologies, biomedical research, and process control, in addition to blood-glucose monitoring. This range reflects the versatility of converting glucose-related biochemical activity into an electrical measurement. In engineering research, the same platform can therefore support health-oriented devices as well as systems designed to monitor or control processes.
These goals guide continued engineering development of glucose biosensors. Smaller devices support the move toward wearable health technologies, while greater reliability strengthens their usefulness for glucose monitoring and biomedical research. Minimally invasive designs represent another direction for improving deployment. Achieving these aims depends on coordinated choices involving enzymes, electrodes, membranes, and signal-processing methods.