Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


New nanomethod paves the way for new measuring technology and hypersensitive sensors

Researchers at Chalmers University of Technology in Sweden have developed a new measurement technology that makes use of optical resonances in nanoparticles.

The method, which opens new possibilities in the field of catalytics, will be published in the journal Science for November and is already available in the Web edition Science Express.

Optical resonances in nanoparticles, so-called plasmon resonances, have been the object of intensive research and development for about a decade now for detection of biological molecules and in optoelectronics.

The Chalmers scientists can now show that plasmon resonances in nanoparticles can be used to monitor reactions ON catalysts and for the design of sensors that are extremely sensitive.

The article is based on findings from doctoral work done by Elin Larsson and Christoph Langhammer. Co-authors are Igor Zoric and Bengt Kasemo, all in chemical physics at Chalmers.

The discoveries pave the way both for new measurement techniques in the nano field and the development of entirely new, hypersensitive sensors. With the new technology it will be possible to study catalysts in real time under realistic conditions, thus enhancing our knowledge of catalytic processes and helping develop new catalysts.

This helps bring down the use of both materials and energy in a number of processes and moreover reduces environmentally toxic emissions both from industry and vehicles.

Sensors are used daily in numerous areas, everything from medical diagnostics and control of industrial processes to combustion and catalytic cleaning of exhausts from vehicle engines. Today's sensors are often expensive and/or insufficient owing to short lifetimes, low selectivity and sensitivity, and lack of durability in demanding environments.

The new method is extremely robust and technologically simple, which will enable the development of inexpensive and robust sensors.

The research is continuing, targeting a number of diverse applications. Elin Larsson is further developing the method for the catalytic field at the Competence Center for Catalysis, KCK, at Chalmers.

Commercialization is being planned in the CleanSense Project, which was started within the framework of the Chalmers School of Entrepreneurship.

The research has largely been pursued as part of the SSF-funded project Photoactive Nanostructures, and is now continuing in the Nanotechnology for Sustainable Energy Project, funded by the Chalmers Foundation and the Swedish Energy Agency.

For more information, please contact:
Elin Larsson, Competence Center for Catalysis, Department of Applied Physics, Chalmers University of Technology
Phone: +46 (0)31-772 34 64; cell phone: +46 (0)70-394 81 04
Bengt Kasemo, Chemical Physics, Department of Applied Physics, Chalmers University of Technology

Phone: +46 (0)31-772 33 70; cell phone: +46 (0)70-828 26 01

Pressofficer Sofie Hebrand,;+46 736-79 35 90

Sofie Hebrand | idw
Further information:

More articles from Physics and Astronomy:

nachricht A new kind of quantum bits in two dimensions
19.03.2018 | Vienna University of Technology

nachricht 'Frequency combs' ID chemicals within the mid-infrared spectral region
16.03.2018 | American Institute of Physics

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

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

Im Focus: Tiny implants for cells are functional in vivo

For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.

In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

Im Focus: ILA 2018: Laser alternative to hexavalent chromium coating

At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.

When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

Latest News

A new kind of quantum bits in two dimensions

19.03.2018 | Physics and Astronomy

Scientists have a new way to gauge the growth of nanowires

19.03.2018 | Materials Sciences

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Science & Research
Overview of more VideoLinks >>>