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04-18-2016, 10:24 PM
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New Sensor Detects Disease Biomarkers in Exhaled Breath
 Biomarkers in Exhaled Breath continue to be intriguing targets for detecting and monitoring of a variety of health conditions. Due to their low concentrations and the difficulty of*developing sensors, there’s still a lot of untapped potential for Breath analysis. To speed this process along,*researchers at Fujitsu have developed a Sensor that can accurately measure ammonia in Exhaled breath, down to 10 parts per billion, *a marker that can point to signs of liver Disease and the ulcer-causing H. pylori*bacterial*infection. Additionally, the researchers developed a modified device able of*measuring **nanal, a potential biomarker for lung cancer. The researchers plan on expanding the capability of the Sensor platform to detect a lot of other, still **t properly researched, compounds that we exhale. Here are some details about the tech**logy according to Fujitsu: Copper ions in copper(I) bromide, a P-type semiconductor, undergo a reversible adsorption with ammonia molecules. Making use of this property, Fujitsu Laboratories developed a Sensor in which the film thickness and copper(I) bromide composition were optimized for use as a Breath sensor. Because electron supply from the ammonia reduces the carriers in the film, this has the effect of increasing electrical resistance between electrodes. This phe**me**n was used and the reactions quantified. As a result, with a sensitivity differential of 2,500 times that for acetone, a**ther gas commonly found in the breath, the Sensor was able to distinguish and measure just ammonia from a level of 10 parts per billion (ppb).  Via:*Fujitsu… The post New Sensor Detects Disease Biomarkers in Exhaled Breath appeared first on Medgadget. ??????? ??????: New Sensor Detects Disease Biomarkers in Exhaled Breath || ??????: rss || ??????: اسم منتداك
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