Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Plastic chip measures blood sugar and assures the quality of food

03.03.2006

The sensor, which measures 10 mm x 10 mm, can replace advanced, expensive optical devices containing lenses and grids in what are commonly called spectroscopic tools. The sensor is also more reliable than traditional optical devices that require calibrating and maintenance. This chip does not corrode, is robust and provides quick results from analyses. The chips can be produced in the same type of machines that make compact discs.

The plastic chip was originally developed to detect different types of plastic; it is now used in bottle recycling machines and in a recently developed CO2 sensor that controls ventilation in buildings. As the chip is so robust, it can be used in harsh environments, such as in the depths of an oil well to detect gases. It can measure both the blood’s oxygen intake and blood sugar levels in the human body. It can also be used in the quality control of food in supermarkets where it measures both fat and water content.

The technology in the chip is called DOE,which is an abbreviation for Diffractive Optical element. It is here that the secret lies. The chip contains a synthetic hologram that functions as a light filter. The hologram diffracts the light reflected by an object or gas and is able to identify energy in the infrared spectrum. The hologram is designed to measure the energy at particular wavelengths because each substance emits a number of spectral peaks that are specific to that particular substance. While the eye sees twodimensional figures, a hologram reproduces the light waves instead of the actual object.

The chip can therefore be used to identify or check the quality of substances in many contexts, says SINTEF research scientist Odd Lovhaugen.The SINTEF Group is the largest independent research organisation in Scandinavia, based in Trondheim.

The research scientists have now taken out a patent, based on the same technology, for a device to measure alcohol. The device can test the level of alcohol on the spot in a driver’s blood and, if it is certified to do so, will be able to replace the blood samples that currently need to be tested by forensic laboratories. The scientists say the chip will give less ambiguous results than the traditional methods in use today, which employ traditional spectroscopy.

Odd Løvhaugen | alfa
Further information:
http://www.sintef.no/content/page2____334.aspx

More articles from Medical Engineering:

nachricht Artificial intelligence may help diagnose tuberculosis in remote areas
25.04.2017 | Radiological Society of North America

nachricht Pharmacoscpy: Next-Generation Microscopy
25.04.2017 | CeMM Forschungszentrum für Molekulare Medizin der Österreichischen Akademie der Wissenschaften

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

Scientist invents way to trigger artificial photosynthesis to clean air

26.04.2017 | Materials Sciences

Ammonium nitrogen input increases the synthesis of anticarcinogenic compounds in broccoli

26.04.2017 | Agricultural and Forestry Science

SwRI-led team discovers lull in Mars' giant impact history

26.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>