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06-27-2017, 02:22 AM
Tiny Barometric Sensor to Detect Presence of Disease Biomarkers
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Researchers from Jinan University in Guangzhou, China and Washington State University have developed a **vel type of sensor that works by measuring pressure changes induced by the production of oxygen (O2). The tech**logy may miniaturize and make readily available testing of a wide variety of biomarkers. The team of researchers has already demonstrated how the tech**logy can be used to detect thrombin, a blood clotting enzyme, and carci**embryonic antigen, a protein related to a number of cancers.
The sensor consists of a small chamber within which gold-core platinum-shell na**particles are allowed to catalyze the breaking up of H2O2آ*in the presence of a target compound, in the process producing O2. As the oxygen is released, the pressure within the chamber rises ever so slightly. A barometer is then used to detect the increased pressure, confirming the presence of the biomarker being searched for.
Besides medical applications, the investigators believe the tech**logy will find use in environmental testing and for screening food for safety.
Study in ACS Sensors: Versatile Barometer Biosensor Based on Au@Pt Core/Shell Na**particle Probe… (http://pubs.acs.org/doi/abs/10.1021/acssensors.7b00156)
Via: American Chemical Society… (https://phys.org/partners/american-chemical-society/)
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https://www.medgadget.com/wp-content/uploads/2017/06/barom-sensor-300x237.jpghttps://www.medgadget.com/wp-content/uploads/2017/06/barometer-sensor.jpg
Researchers from Jinan University in Guangzhou, China and Washington State University have developed a **vel type of sensor that works by measuring pressure changes induced by the production of oxygen (O2). The tech**logy may miniaturize and make readily available testing of a wide variety of biomarkers. The team of researchers has already demonstrated how the tech**logy can be used to detect thrombin, a blood clotting enzyme, and carci**embryonic antigen, a protein related to a number of cancers.
The sensor consists of a small chamber within which gold-core platinum-shell na**particles are allowed to catalyze the breaking up of H2O2آ*in the presence of a target compound, in the process producing O2. As the oxygen is released, the pressure within the chamber rises ever so slightly. A barometer is then used to detect the increased pressure, confirming the presence of the biomarker being searched for.
Besides medical applications, the investigators believe the tech**logy will find use in environmental testing and for screening food for safety.
Study in ACS Sensors: Versatile Barometer Biosensor Based on Au@Pt Core/Shell Na**particle Probe… (http://pubs.acs.org/doi/abs/10.1021/acssensors.7b00156)
Via: American Chemical Society… (https://phys.org/partners/american-chemical-society/)
http://feeds.feedburner.com/~ff/Medgadget?d=yIl2AUoC8zA (http://feeds.feedburner.com/~ff/Medgadget?a=gQGpPXvCeLM:xblxrQoAKtE:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/Medgadget?d=qj6IDK7rITs (http://feeds.feedburner.com/~ff/Medgadget?a=gQGpPXvCeLM:xblxrQoAKtE:qj6IDK7rITs) http://feeds.feedburner.com/~ff/Medgadget?i=gQGpPXvCeLM:xblxrQoAKtE:gIN9vFwOqvQ (http://feeds.feedburner.com/~ff/Medgadget?a=gQGpPXvCeLM:xblxrQoAKtE:gIN9vFwOqvQ)
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