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
3-D visualization of the pancreas -- new tool in diabetes research
15.03.2017 | Umea University
New PET radiotracer identifies inflammation in life-threatening atherosclerosis
02.03.2017 | Society of Nuclear Medicine
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
23.03.2017 | Life Sciences
23.03.2017 | Power and Electrical Engineering
23.03.2017 | Earth Sciences