Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Versatile plastic chip

18.07.2006
A recently developed little plastic chip makes it possible to identify recycled bottles, assure the quality of food in supermarkets and measure our blood sugar levels.
The sensor, which measures 10mm x 10mm, 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. Inventors Odd Løvhaugen and Ib-Rune Johansen recently received SINTEF’s award for outstanding research for developing this technology.

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.

Synthetic hologram

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 two-dimensional 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 Løvhaugen.

Applications

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.

Aase Dragland | alfa
Further information:
http://www.sintef.no

More articles from Health and Medicine:

nachricht Satellites, airport visibility readings shed light on troops' exposure to air pollution
09.12.2016 | Veterans Affairs Research Communications

nachricht Oxygen can wake up dormant bacteria for antibiotic attacks
08.12.2016 | Penn State

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: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>