Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Breathalyzer for Diagnosis of Lung Diseases

30.11.2012
Siemens is researching a method that may make it possible to diagnose tuberculosis or lung cancer at an early stage using breath samples. The process involves an analysis of the molecular structure of the subject's breath.

If the person concerned is ill, there is a shift in the relative quantities of molecules contained in his or her breath. As reported in the current issue of Pictures of the Future magazine, preliminary tests using breath samples from cancer and tuberculosis patients have been very promising. Now the process has to be verified using a larger and more diverse group of people.



According to the World Health Organization, 8.7 million people contracted tuberculosis worldwide in 2011 alone, and the disease killed 1.4 million patients that year. If this disease - which often seems to just be a bad cold when it starts - isn't diagnosed early enough, other people are infected.

One effective solution involves a method that could help doctors recognize tuberculosis easily and early on. A method for reliably identifying lung cancer at an early stage has also been lacking until now. That's why the average life expectancy for a patient diagnosed with lung cancer is currently only around two years.

... more about:
»Breathalyzer »Molecules »diseases »lung cancer

Scientists working for the Siemens global research department Corporate Technology are making use of the old insight that particular illnesses can be recognized by changes in the odors contained in a person's breath. The cocktail of highly complex molecules contained in a person's breath changes in specific ways when he or she is ill.

Researchers use a quadrupole mass spectrometer to identify individual molecules and determine their concentration in the patient's breath. Here, the substances in the breath sample are electrically charged and accelerated through an electrical field which affects their trajectory. Particles of different weights are deflected to different degrees and thus land at different places on the detectors. In this way a kind of fingerprint is created from which conclusions about diseases can be drawn.

Now that trials with tuberculosis and lung cancer patients have been successful, testing has to be carried out in order to determine what influences age, sex and diet have on measurements. Tests of smokers are also pending. If the initial positive results are confirmed, the technology could be further developed for practical applications. To make it suitable for use in a doctor's office, the spectrometer will have to be made small enough to fit inside a suitcase. Additionally, the software will need to be optimized so that it is simple to use.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

Further reports about: Breathalyzer Molecules diseases lung cancer

More articles from Health and Medicine:

nachricht Serious children’s infections also spreading in Switzerland
26.07.2017 | Universitätsspital Bern

nachricht New vaccine production could improve flu shot accuracy
25.07.2017 | Duke University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

Large-Mouthed Fish Was Top Predator After Mass Extinction

26.07.2017 | Earth Sciences

Getting closer to porous, light-responsive materials

26.07.2017 | Materials Sciences

Large, distant comets more common than previously thought

26.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>