The sensor measures amounts as small as one ppb (part per billion), making it as sensitive as larger devices that are far more expensive and not portable. One ppb corresponds approximately to the dilution of a cube of sugar in a 50 meter-long swimming pool. The new sensor is contained in a prototype device that will be portable and only a little larger than a cell phone.
In patients suffering from asthma, the latent inflammation of the bronchial tubes generally spreads long before the patients actually feel anything. If the inflammation is intense, the air passages constrict and the patient has an asthma attack. The attacks can be so serious that the patient has to be treated in hospital, which is why many asthma sufferers regularly take anti-inflammatory medication. Previously, the only way to detect impending asthma attacks in advance was to conduct expensive pulmonary examinations to determine if the patient’s breath contained heightened levels of nitrogen monoxide (NO), which signal such an attack. By contrast, the new sensor from Siemens Corporate Technology will enable patients to analyze the NO in their breath themselves. As a result, they will be able to take the minimum amount of preventive medication and increase the dose only if really necessary.
The new sensor can detect increases in NO one day before an acute asthma attack occurs. Over the past few years, medical researchers and health insurance companies have recognized that NO levels are an effective indication of an impending asthma attack. In the analysis of a patient’s breath, the system first converts nitrogen monoxide into nitrogen dioxide, after which the air flows across the actual sensor. Only the particles signaling the attack adhere to the sensor’s surface. This generates a voltage that is measured by a field-effect transistor. The intensity of the voltage is directly dependent on the amount of nitrogen monoxide in the patient’s breath. On the basis of this value, the patient can decide what dose of anti-inflammatory medication he or she should take.
Another type of breath sensor under consideration would allow athletes to check whether they are exercising enough to burn fat. The detection principle is the same, except that the system measures the level of acetone. The latter is generated in the body when fat is burned and is also detectable in a person’s breath.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
Powerful IT security for the car of the future – research alliance develops new approaches
25.05.2018 | Universität Ulm
Supercomputing the emergence of material behavior
18.05.2018 | University of Texas at Austin, Texas Advanced Computing Center
The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...
A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.
The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
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