Release date: 2013-05-14
The latest press release from the University of Cambridge said that the school's innovative company has developed a new type of device that can quickly diagnose asthma, liver disease and other diseases by analyzing exhaled gases.
In addition to nitrogen, oxygen and carbon dioxide, the gases we exhale contain many other compounds. The level of these compounds is an important indicator of the state of the body. For example, a higher acetone content in exhaled breath means that there is a high risk of developing diabetes; and if the exhaled gas contains higher levels of nitric oxide than normal, it is likely to have asthma.
For this reason, non-invasive respiratory analysis instruments have great potential for medical diagnosis and disease monitoring. A variety of respiratory analysis instruments have been developed for medical diagnosis. However, most of these analytical instruments use mass spectrometry or laser to analyze specific compounds in exhaled gases. The analysis range is small, so it is necessary to diagnose different diseases. Different equipment.
The new devices developed by the University of Cambridge's innovative companies are significantly different. The new device, based on complementary metal-oxide-semiconductor (CMOS) technology, uses broadband infrared radiation with a detection range between 2 and 14 microns, allowing the detection and analysis of more than 35 biomarkers from human exhaled gases. The device is not only low cost, low energy consumption, but also very efficient. Its micro heating device can raise the temperature from room temperature to 700 degrees Celsius in less than one second, which is enough to release infrared radiation and make the sensing material. Reacts with gas molecules.
The researchers pointed out that the use of this non-invasive respiratory analysis instrument is not only fast and efficient, but also painless for patients, and has a good development prospect.
Source: China Science and Technology Network
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